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重慶市豐都中學(xué)2009屆高三第五次月考

理科綜合

  選擇題(共126分)

理綜1.已知分泌蛋白的新生肽鏈上有一段可以引導(dǎo)其進(jìn)入內(nèi)質(zhì)網(wǎng)的特殊系列(圖中P肽段),若p肽段功能缺失,則該蛋白

     A.無法繼續(xù)合成         B.可以進(jìn)入高爾基體

      C.可以被加工成熟        D.無法被分秘到細(xì)胞外

2.某生物的三對(duì)等位基因(Aa、Bb、Cc)分別位于三對(duì)同源染色體上,且基因A、b、C分別控制①②③三種酶的合成,在三種酶的催化下可使一種無色物質(zhì)經(jīng)一系列轉(zhuǎn)化變?yōu)楹谏。假設(shè)該生物體內(nèi)黑色素的合成必須由無色物質(zhì)轉(zhuǎn)化而來,如下圖所示:

文本框: 合成
控制
文本框: 合成
控制
文本框: 合成
控制
理綜

現(xiàn)有基因型為AaBbCc的兩個(gè)親本雜交,出現(xiàn)黑色子代的概率為

A.1/64                  B.8/64                         C.9/64                 D.27/64

3.在農(nóng)業(yè)生產(chǎn)實(shí)踐中,常采用多種措施提高農(nóng)作物的產(chǎn)量。下列各項(xiàng)敘述中,措施與直接目的不一致的是

     A.給植物補(bǔ)充氮肥用途之一是因?yàn)锳TP的組成元素中有N,可以提高光合作用效率。

B.將陰生植物和陽(yáng)生植物套種,利于提高作物光合作用效率

     C.營(yíng)養(yǎng)生殖加快作物繁殖速度,利于優(yōu)良性狀的保持

D.冬季大白菜收獲季節(jié),大棚比農(nóng)田不容易缺鈣而“爛心”

4.細(xì)胞是生命的基本單位,細(xì)胞的特殊性決定了個(gè)體的特殊性,因此,對(duì)細(xì)胞的深入研究是揭開生命奧秘、改造生命和征服疾病的關(guān)鍵。下列關(guān)于細(xì)胞結(jié)構(gòu)和功能的敘述中,正確的是 ①硝化細(xì)菌、霉菌、水綿的細(xì)胞不都含有核糖體、DNA和RNA;②人和動(dòng)物細(xì)胞在無氧條件下也能分解有機(jī)物,產(chǎn)生的[H]還原丙酮酸形成乳酸時(shí)產(chǎn)生少量的ATP;③能進(jìn)行光合作用的細(xì)胞不一定有葉綠體;無線粒體的細(xì)胞不能進(jìn)行有氧呼吸;④抑制細(xì)胞膜上載體活性或影響線粒體功能的毒素,都會(huì)阻礙根細(xì)胞吸收礦質(zhì)離子;⑤性激素的合成與內(nèi)質(zhì)網(wǎng)有關(guān);⑥不同海棉細(xì)胞之間識(shí)別是因?yàn)樘堑鞍字刑穷惓煞植煌皇且驗(yàn)榘被岢煞植煌;⑦在一個(gè)細(xì)胞周期中,T和U兩種堿基被大量利用時(shí),細(xì)胞一定處于分裂間期.

A.①②④⑤               B.④⑤⑥⑦                C.③④⑤⑦               D.②④⑤⑦

5、對(duì)下列四幅圖的解析,正確的是

文本框: 抗體水平理綜,理綜,文本框: 抗體水平
 

 

 

 

 

 

A.由圖甲可知,生長(zhǎng)素作用具有兩重性,不同器官的敏感程度不同
B.由圖乙可知,1和2的分離發(fā)生在有絲分裂和減數(shù)第二次分裂后期
C.由圖丙可知,小鼠對(duì)抗原B反應(yīng)較慢
D.由圖丁可知,人在進(jìn)食后胰島A細(xì)胞的活動(dòng)增強(qiáng),胰島素分泌增多

6.2008年北京奧運(yùn)會(huì)奧運(yùn)場(chǎng)館“鳥巢”使用的代號(hào)Q460的特殊鋼是合金,Q460是支撐“鳥巢”的鐵骨鋼筋,除含有鐵元素外,還含有Mn(錳)、  Ti(鈦)、Cr(鉻)、Nb(鈮)等合金元素,下列說法正確的是

     A.Fe屬于過渡元素,位于元素周期表的第四周期、第ⅧB族

     B.工業(yè)上利用鋁熱反應(yīng)可以冶煉金屬Fe、Cr、Mn

     C.TiO2、TiO2、TiO2 互為同位素,性質(zhì)完全相同

     D.Nb3+原子核內(nèi)有51個(gè)中子,核外有41個(gè)電子

7.下列反應(yīng)的離子方程式書寫正確的是

A.燒堿溶液和過量Ca(HCO32溶液反應(yīng):

2OH+Ca+2HCO3=CaCO3↓+CO3+2H2O

B.碳酸鈣與醋酸溶液反應(yīng):

CaCO3+2H=Ca+CO2↑+H2O    

C.硫酸亞鐵溶液中加入用硫酸酸化的過氧化氫溶液:

Fe+2H+H2O2=Fe+2H2O

D.向硫酸銅溶液中滴加氫氧化鋇溶液至SO4恰好沉淀完全:

Cu2++SO4+2OH-+Ba=BaSO4↓+Cu(OH)2↓8.下列各組離子能在指定溶液中共存的是

   ①無色溶液中:K+、Cl、Na+、H2PO4、PO43―、SO42―   

②使pH試紙變深藍(lán)的溶液中:CO32―、NO3、Na+、S2―、AlO2、SO32― 

③水電離的C(H+)=10-13mol?L―1的溶液中:ClO、HCO3、NO3、NH4+、S2O32―      

④加入Mg能放出H2的溶液中:Mg2+、NH4+、Cl、Na+、SO42―

    ⑤使甲基橙變紅的溶液中:MnO4、NO3、SO42―、Na+、Fe3+

      ⑥pH=0的溶液中:Fe2+、Al3+、NO3、I、Cl-、S2―

      A.①③                  B.②④⑤                 C.①②⑤                 D.③⑥

理綜9.如右圖,在一定溫度下,Ⅰ為恒壓體積可變的密閉容器,Ⅱ?yàn)楹闳菝荛]容

器。在Ⅰ、Ⅱ中分別加入2 mol A和2 mol B,起始時(shí)容器體積相等且均

為V L,發(fā)生如下反應(yīng)并達(dá)到化學(xué)平衡狀態(tài):

2A十BxC(g),平衡時(shí)兩容器中A、B、C的物質(zhì)的量之比均為1:3:6。下列說法一定正確的是

A.x的值為3 

B.B物質(zhì)可為固體或液體

C.Ⅰ、Ⅱ容器中從起始到平衡所需時(shí)間相同    

D.平衡時(shí),Ⅰ容器的體積小于V L

10.某合金(僅含銅、鐵)中銅和鐵的物質(zhì)的量之和為y mol,其中Cu的物質(zhì)的量分?jǐn)?shù)為a,將其全部投入50 mL b mol?L-1的硝酸溶液中,加熱使其充分反應(yīng)(假設(shè)NO是唯一的還原產(chǎn)物)。下列說法正確的是 

A.若金屬有剩余,在溶液中再滴入硫酸后,金屬不溶解

B.若金屬全部溶解,則溶液中不一定含有Fe3

C.若金屬全部溶解,且產(chǎn)生336 mL氣體(標(biāo)準(zhǔn)狀況),則b = 0.3

D.當(dāng)溶液中金屬離子只有Fe3、Cu2時(shí),則a與b的關(guān)系為:b≥80y(1-a/3)

11.下列各項(xiàng)操作中不發(fā)生先沉淀后溶解現(xiàn)象的是

①向飽和Na2CO3溶液中通入過量CO2

②向Fe(OH)3膠體中逐滴滴入過量的H2SO4

③向AgI膠體中逐滴加入過量稀鹽酸

④向石灰水中通入過量CO2

⑤向Na2SiO3溶液中滴入過量的鹽酸

A.①②③               B.②③⑤                C.①②③⑤             D.①③⑤

12.下列敘述正確的是

A.常溫下,10 mL pH=12的Ba(OH)2溶液與40 mLcmol?L-1的NaHSO4溶液混合,當(dāng)溶液中的Ba2+、SO42-均恰好完全沉淀,若混合后溶液的體積為50 mL,則溶液pH=11

B.某二元酸(H2A)在水中的電離方程式是:H2A=H++HA,HA  H++A2;則NaHA溶液中:c(Na+) = c(A2-)+c(HA-)

C.pH=12的氨水溶液與pH=2的鹽酸溶液等體積混合:c(Cl)>c(NH4)>c(H+)>c(OH)

D.濃度均為0.1mol?L-1的小蘇打溶液與燒堿溶液等體積混合:c(Na)+c(H+) = 2c(CO32)+c(OH)

理綜13.固體氧化物燃料電池(SOFC)以固體氧化物作為電解質(zhì)。其工作原理如右圖所示:下列關(guān)于固體燃料電池的有關(guān)說法正確的是

A.電極b為電池負(fù)極,其電極應(yīng)式

O2+4e=4O2                          

B.固體氧化物的作用是讓電子在電解池內(nèi)通過

C.若C2H4作為燃料氣,則接觸面上發(fā)生的

反應(yīng)為:C2H4+6O2-12e=2CO2+2H2O

D.若H2作為燃料氣,則接觸面上發(fā)生的反應(yīng)為:

H2+2OH-4e=2H+H2O

理綜14.如圖所示,有一固定的圓筒形絕熱容器,用絕熱活塞密封一定質(zhì)量的理想氣體,當(dāng)活塞位于a處時(shí),筒內(nèi)氣體壓強(qiáng)等于外界大氣壓,當(dāng)活塞在外力作用下由a移動(dòng)到b位置的過程中,下列說法中正確的是:

   A.氣體分子間的作用力增大                         B.氣體壓強(qiáng)增大

   C.氣體分子的平均動(dòng)能減小                         D.氣體內(nèi)能增加

理綜15.一列沿軸負(fù)方向傳播的簡(jiǎn)諧橫波在t=0時(shí)刻的波形如圖中實(shí)線所示,t=0.2s時(shí)的波形如圖中的虛線所示,則:

     A.波上質(zhì)點(diǎn)的運(yùn)動(dòng)方向向右

     B.波的周期可能為0.27s

     C.波的頻率可能為1.25HZ

     D.此波的傳播速率可能為20m/s

16.一帶電小球在空中由a點(diǎn)運(yùn)動(dòng)到b點(diǎn)的過程中,受到重力、電場(chǎng)力和空氣阻力三個(gè)力的作用。若重力勢(shì)能增加了3J,機(jī)械能增加了0.5J,電場(chǎng)力做功為1J,下列說法中不正確的是:

     A.克服重力做功為3J                           B.電勢(shì)能增加了1J

     C.克服空氣阻力做功為0.5J               D.動(dòng)能減少了2.5J

17.如圖所示,A、B兩物體疊放在光滑水平地面上,B從某時(shí)刻受到一變力的作用,該力與時(shí)間的關(guān)系如圖乙所示。若A、B始終保持相對(duì)靜止,則:

理綜     A.在t0時(shí)刻,A、B兩物體間的摩擦力最大

     B.在2t0時(shí)刻,A、B兩物體間的摩擦力最大

     C.在t0時(shí)刻,A、B兩物體的速度最小

     D.在2t0時(shí)刻,A、B兩物體的速度最大

18.2007年10月24日18時(shí)05分,我國(guó)成功發(fā)射了“嫦娥一號(hào)”探月衛(wèi)星。若衛(wèi)星在地球表面的重力為G1,在月球表面的重力為G2,已知地球的半徑為R1,月球的半徑為R2,地球表面處的重力加速度為g,則:

     A.月球表面處的重力加速度

      B.月球質(zhì)量與地球質(zhì)量之比為

     C.衛(wèi)星在月球表面做勻速圓周運(yùn)動(dòng)的周期

     D.月球的第一宇宙速度與地球的第一宇宙速度之比為

理綜理綜19.如圖所示,兩平行金屬板A、B接于電池的兩極,一帶正電的擺球用絕緣輕質(zhì)細(xì)繩懸掛于A板上,在沒有電場(chǎng)時(shí)單擺做簡(jiǎn)諧運(yùn)動(dòng)的周期為T0。現(xiàn)閉合開關(guān)S,讓單擺做簡(jiǎn)諧運(yùn)動(dòng),設(shè)此時(shí)單擺的振動(dòng)周期為T,下列判斷中正確的是:

    A.T0小于T

    B.保持S閉合,將B板向下平移小段距離,則周期小于T

    C.S由閉合到斷開后,將B板向左平移小段距離,則周期等于T

    D.S由閉合到斷開后,將B板向下平移小段距離,則周期等于T

理綜20.如圖所示電路中,電源的電動(dòng)勢(shì)為E,內(nèi)電阻為r,電路中電阻R1、R2和R3的阻值均相同。在開關(guān)S處于閉合狀態(tài)下,將S1由位置1切換到位置2,則:

A.電壓表的示數(shù)將會(huì)增大

   B.電源內(nèi)部消耗的功率將會(huì)增大

   C.電阻R2兩端的電壓增大

    D.電源的效率將會(huì)提高

理綜21.壓敏電阻的阻值隨所受壓力的增大而減小,有位同學(xué)利用壓敏電阻設(shè)計(jì)了判斷小車運(yùn)動(dòng)狀態(tài)的裝置,其原理如圖甲所示,將壓敏電阻(圖中陰影部分)和一塊擋板固定在絕緣小車上。中間放置一個(gè)絕緣重球。小車在向右做直線運(yùn)動(dòng)的過程中,電流表的示數(shù)隨時(shí)間變化規(guī)律如圖乙所示,則下列判斷中正確的是:

     A.在t1~t2的時(shí)間內(nèi),小車做變加速直線運(yùn)動(dòng)

     B.在t1~t2的時(shí)間內(nèi),小車做勻加速直線運(yùn)動(dòng)

     C.在t2~t3的時(shí)間內(nèi),小車做勻速直線運(yùn)動(dòng)

     D.在t2~t3的時(shí)間內(nèi),小車靜止

 

第Ⅱ卷   非選擇題(共174分)

理綜22.(1)(6分)在“用油膜法估測(cè)分子大小”的實(shí)驗(yàn)中,所用油酸酒精溶液的濃度為每1000mL溶液中有純油酸0.6mL,用注射器測(cè)得1mL上述溶液有80滴,把1滴該溶液滴入盛水的淺盤內(nèi),讓油膜在水面上盡可能散開,得到油酸薄膜的輪廓形狀和尺寸如圖所示,圖中正方形格的邊長(zhǎng)為1cm,則:

  (a)油酸薄膜的面積是________ cm2

  (b)油酸分子的直徑是______ m。(結(jié)果保留兩位有效數(shù)字)

  (c)利用單分子油膜法可以粗略測(cè)定分子的大小和阿伏加德羅常數(shù)。如果已知體積為V的一滴油在水面上散開后形成的單分子油膜的面積為S,這種油的密度為ρ,摩爾質(zhì)量為M,則阿伏加德羅常數(shù)的表達(dá)式為_______________ 。

  (2)(12分)某同學(xué)在做自來水電阻率的測(cè)定實(shí)驗(yàn)時(shí),在一均勻長(zhǎng)玻璃管兩端各裝了一個(gè)電極,其間充滿待測(cè)的自來水,然后用如圖甲所示的電路進(jìn)行測(cè)量。

理綜
 

 

 

 

 

    他選用的電學(xué)器材有:電壓表(量程為15V,內(nèi)阻約為90KΩ);電流表(量程為300μA,內(nèi)阻約為50Ω);滑動(dòng)變阻器(100Ω,1A);電池組(電動(dòng)勢(shì)E=12V,內(nèi)阻r=6Ω);開關(guān)一個(gè);導(dǎo)線若干。

    實(shí)驗(yàn)中的測(cè)量情況如下:安裝前他用圖乙所示的游標(biāo)卡尺測(cè)量玻璃管的內(nèi)徑,結(jié)果如圖丙所示。測(cè)得兩電極相距L=0.314m。實(shí)驗(yàn)中測(cè)得包括0在內(nèi)的9組電流I、電壓U的值,在坐標(biāo)紙上描出的點(diǎn)如圖丁所示。

  根據(jù)以上材料,請(qǐng)回答下面的問題:

  (a)在測(cè)量玻璃管的內(nèi)徑時(shí),應(yīng)將圖乙所示的游標(biāo)卡尺中的A、B、C三部分中的_____ 與玻璃管的內(nèi)壁接觸;玻璃管的內(nèi)徑d= __________ mm.

  (b)為保證安全,閉合開關(guān)前滑動(dòng)變阻器的滑片應(yīng)移至_______ 端(填“M”或“N”)

  (c)根據(jù)實(shí)驗(yàn)數(shù)據(jù)可知,他測(cè)得的水柱電阻R= ________ Ω(保留兩位有效數(shù)字)。用水柱電阻R、玻璃管內(nèi)徑d、水柱長(zhǎng)度L表示自來水的電阻率ρ=________ 。

  (d)該同學(xué)在完成實(shí)驗(yàn)報(bào)告時(shí),通過比較水柱電阻、電表內(nèi)阻時(shí)發(fā)現(xiàn)電路的設(shè)計(jì)有不妥之處,會(huì)引起較大的系統(tǒng)誤差,于是他在實(shí)驗(yàn)中提出了改進(jìn)意見,并畫出了改進(jìn)后的電路圖。請(qǐng)你在虛線框中畫出改進(jìn)后的實(shí)驗(yàn)電路圖。(要求作圖規(guī)范)

理綜
 

 

 

 

 

 

 

理綜

23.(16分)質(zhì)量為M的木塊靜止于光滑水平面上,一質(zhì)量為m、速度為的子彈水平射入木塊且未穿出。設(shè)木塊對(duì)子彈的阻力恒為,問:

  (1)木塊的長(zhǎng)度L至少要多長(zhǎng),子彈才不會(huì)穿出?

  (2)子彈在木塊中運(yùn)動(dòng)了多長(zhǎng)時(shí)間?

 

 

 

 

 

 

 

 

 

 

24.(18分)A、B是兩個(gè)帶正電的點(diǎn)電荷,電荷量均為q,B放在一塊絕緣板上,A固定在B下方的絕緣體上,控制B所在的絕緣板從靜止起以加速度a(a<g)豎直向下做勻加速運(yùn)動(dòng),若B的質(zhì)量為m,靜電力恒量為(A、B間的空間為真空)。問:

(1)B所在的板向下運(yùn)動(dòng)到離A多遠(yuǎn)的C處時(shí)B球?qū)?huì)脫離絕緣板。

理綜(2)若BC=2CA,則在以上運(yùn)動(dòng)過程中,電場(chǎng)力和板的支持力對(duì)B做功的代數(shù)和等于多少?

 

 

 

 

25.(20分)如圖甲所示,豎直放置輕彈簧下端與放在水平地面上的物塊A相連,上端與物塊B相連。物塊C在B的正上方某處自由下落,與B碰后黏合在一起后繼續(xù)下降。在物塊C正上方放置一個(gè)速度傳感器,以測(cè)定C下落的速度;在物塊A的正下方放置一個(gè)壓力傳感器,以測(cè)量物塊A對(duì)地面的壓力FN,得到如圖乙所示的―t和FN―t圖,圖中縱坐標(biāo)上的FN1、、均為已知量。已知彈簧的勁度系數(shù)為,A、B、C三個(gè)物塊的質(zhì)量均相等且都可視為質(zhì)點(diǎn),重力加速度為g。

(1)每個(gè)物塊的質(zhì)量m;

(2)求從t1到t2時(shí)間內(nèi),B、C黏合體對(duì)彈簧做功的大?

理綜(3)為使B、C黏合體向上反彈到最大高度時(shí),物塊A對(duì)地面的壓力恰好為零,則C物塊開始下落時(shí)與B物塊間的距離H應(yīng)為多大?

 

 

 

 

26.(12分) A、B、C、D、E都是短周期元素,原子序數(shù)依次增大,A、B處于同周期,C、D、E同處另一周期,C、A可按原子個(gè)數(shù)比2∶l和1∶1分別形成兩種離子化合物甲和乙,B是最活潑的非金屬元素,D是地殼中含量最高的金屬元素,E的最高價(jià)氧化物對(duì)應(yīng)的水化物是最強(qiáng)的含氧酸之一。

(1)B在周期表中的位置:第     周期第    族;E的元素符號(hào)為_______  

化合物甲的電子式為_____________。

(2)物質(zhì)乙可用于潛艇或航天飛機(jī)作供氧劑,寫出乙與CO2反應(yīng)的化學(xué)方程式:

____________________________                                             。

(3)單質(zhì)D與C的最高價(jià)氧化物對(duì)應(yīng)水化物溶液反應(yīng)的離子方程式:

______________________________________________________________________   。

(4)1 mol 單質(zhì)B的氣體與1 mol C的氫氧化物在一定條件下恰好完全反應(yīng),生成一種鹽、水及另一種氣體,則所得氣體的化學(xué)式為:__________________________   。

27.(15分)有①、②、③、④、⑤、⑥、⑦、⑧、⑨、⑩十種元素,原子序數(shù)依次增大,⑨、⑩處于第四周期,其余均為短周期元素。

     (1)若②、⑦、⑧三種元素在周期表中相對(duì)位置如下:

 

 

 

 

 

  ②與⑦、②與⑧形成的液體化合物是常見的重要有機(jī)溶劑,則②、⑦、⑧三種元素最高價(jià)氧化物對(duì)應(yīng)的水化物酸性由強(qiáng)到弱的順序是:________________(用化學(xué)式表示)。

理綜(2)若甲、乙、丙、丁、戊均為上述八種短周期元素中的某些元索組成的單質(zhì)或由其中兩種元素組成的化合物,且甲、戊為無色氣體,反應(yīng)a為置換反應(yīng),反應(yīng)b為化合反應(yīng)。見下圖所示轉(zhuǎn)化關(guān)系:

 

 

①試推測(cè)戊可能為:__________________、___________________(列舉合適的兩例)。

②若甲是O2、乙是NH3,1gNH3發(fā)生反應(yīng)a生成單質(zhì)和液態(tài)化合物時(shí)放出QKJ的熱量,則反應(yīng)的熱化學(xué)方程式為:_______________________________________。

理綜(3)若右下圖中A、B、C、D、E分別是上述10種元素中的某些元素組成的單質(zhì)或其中兩種元素組成的化合物.已知:A是常見的金屬

單質(zhì),反應(yīng)C為置換反應(yīng)類型。

①若反應(yīng)c是用A作電極,在B的水溶

液中進(jìn)行電解反應(yīng),它們有如右圖示轉(zhuǎn)化關(guān)

系。則反應(yīng)d中陰極的電極反應(yīng)式為:_______________________________________。

②若反應(yīng)c是在高溫下進(jìn)行的,且為工業(yè)上有重要應(yīng)用價(jià)值的放熱反應(yīng),當(dāng)物質(zhì)C是一種兩性化合物,則反應(yīng)c的化學(xué)方程式為:______________________________。

理綜

28.(18分)下圖是某實(shí)驗(yàn)室測(cè)定黃鐵礦中硫元素的質(zhì)量分?jǐn)?shù)的裝置:

實(shí)驗(yàn)時(shí)有如下操作:A.將玻璃管中樣品加熱到800℃~850℃。  B.稱取研細(xì)的黃鐵礦樣品。 C.連接好全部?jī)x器,并檢查其氣密性。 D.將樣品小心放入硬質(zhì)玻璃管中部。E.以均恒的速度不斷鼓入空氣。F.用標(biāo)準(zhǔn)碘溶液滴定含淀粉的SO2水溶液。

   (1) 正確的實(shí)驗(yàn)步驟的次序是(以A、B┅的序號(hào)表示)                     。

   (2) 裝置①的作用是                    ;裝置②的作用是            

   (3) 碘跟SO2水溶液反應(yīng)的離子方程式為                               。

   (4) 根據(jù)                                    現(xiàn)象判斷滴定已達(dá)到終點(diǎn)。

   (5)有同學(xué)認(rèn)為用上述裝置測(cè)出的黃鐵礦中硫元素的質(zhì)量分?jǐn)?shù)通常將偏低,你是否同意該觀點(diǎn)

     (填是或否),請(qǐng)說出你的主要理由                  。

   (6)假定礦樣中的硫全部轉(zhuǎn)化為SO2,并全部被水吸收。若稱得礦樣的質(zhì)量為0.0900g,滴定管中碘溶液的初讀數(shù)為1.10mL,末讀數(shù)為25.60mL,標(biāo)準(zhǔn)碘溶液的濃度為0.0500 mol?L-1,則該黃鐵礦樣品中硫元素的質(zhì)量分?jǐn)?shù)為      。

理綜29、(15分)仔細(xì)閱讀下圖,已知B、D、E、F、G是氧化物,F(xiàn)、K是氫化物;C、H是日常生活中最為常見的金屬單質(zhì),J是黃綠色氣態(tài)非金屬單質(zhì),O是白色沉淀在空氣中放置立刻變?yōu)榛揖G色最終變?yōu)镹,且B、H、L、M、N、O中含有同種元素;I是基礎(chǔ)化學(xué)工業(yè)的重要產(chǎn)品,其消費(fèi)量常被視為一個(gè)國(guó)家工業(yè)發(fā)達(dá)水平的一種標(biāo)志(圖中部分反應(yīng)物或產(chǎn)物已略去)。

 

 

 

 

 

 

 

請(qǐng)按要求回答:

(1)反應(yīng)①既是分解反應(yīng),又是氧化還原反應(yīng),產(chǎn)物B、D、E、F的物質(zhì)的量之比1:1:1:14。A的化學(xué)式為______________________。

(2)在反應(yīng)②中,當(dāng)有⒌6gH生成時(shí),電子轉(zhuǎn)移數(shù)目為_____________。

(3) 在實(shí)驗(yàn)室配制L時(shí),一般先將L溶解于____________,再加水稀釋,其原理是____________。

(4)常以C或H制成容器盛裝和運(yùn)輸I的濃溶液,其原理是_______              ___。

(5) 反應(yīng)③的離子方程式為_______________________________________;反應(yīng)④的化學(xué)方程式為________________________________________________。

30.(共22分)

I(每空2分,共10分)森林中,陽(yáng)光可能會(huì)穿過森林中的空隙,在地上投下“光斑”,它們隨著太陽(yáng)的運(yùn)動(dòng)和枝葉的擺動(dòng)而移動(dòng)。下圖顯示了在“光斑”照耀前后一株生長(zhǎng)旺盛的植物光合作用過程中吸收CO2和釋放O2的情況。請(qǐng)據(jù)圖分析回答:

 

(1) “光斑”照耀開始時(shí),CO2吸收速率和O2的釋放速率分別發(fā)生了什么變化?

“光斑”照耀開始時(shí)氧氣釋放速度           ,二氧化碳吸收速率            。     

此時(shí)限制光合作用產(chǎn)物(糖類)合成的主要因素是                              。

(2) 當(dāng)“光斑”移開時(shí),O2的釋放速率立刻恢復(fù)原水平的原因是            ;而CO2吸收速率延續(xù)了一段時(shí)間后才下降,原因是                                    。

II(每空2分,共12分)下圖示測(cè)量過氧化氫酶催化過氧化氫反應(yīng)放出O2的實(shí)驗(yàn)裝置。水槽內(nèi)注有清水,倒置的量筒內(nèi)也充滿了清水。提前制作大小相同的圓形小濾紙片若干。實(shí)驗(yàn)過程如下:

第一次實(shí)驗(yàn):

①制備新鮮動(dòng)物肝臟的研磨液;②將4片圓形小濾紙片在肝臟研磨液浸泡后取出,并貼在反應(yīng)室上側(cè)的內(nèi)壁上(如上圖A所示);③向反應(yīng)小室內(nèi)加入10mL3%H2O2溶液(如上圖A所示);④將反應(yīng)小室旋轉(zhuǎn)180度,成圖B所示狀態(tài);⑤每隔30秒讀取并記錄量筒中水面的刻度一次,共進(jìn)行5分鐘。

 

 

理綜

 

 

 

 

 

 

第二次實(shí)驗(yàn):

除了將圓形小濾紙片的數(shù)量改成2片,其它均與實(shí)驗(yàn)一相同。請(qǐng)回答下列問題:

   (1)上述實(shí)驗(yàn)探究的問題是:____________________________與酶促反應(yīng)速率的關(guān)系。

(2)如果上述兩實(shí)驗(yàn)的結(jié)果無明顯差異,則需如何改進(jìn)實(shí)驗(yàn)?

 

(3)請(qǐng)你設(shè)計(jì)一個(gè)用于記錄觀察結(jié)果的表格。

(4)如果根據(jù)上述實(shí)驗(yàn)一得到的數(shù)據(jù)繪制出了下列曲線圖。那么實(shí)驗(yàn)二的大致曲線應(yīng)該是怎樣的?請(qǐng)?jiān)谇圖中添畫該曲線。

理綜

 

 

 

 

(5)如果要利用上圖的試劑、材料、裝置等研究溫度對(duì)酶促反應(yīng)速率的影響,與本題上述的研究相比,在實(shí)驗(yàn)條件上需作如下變動(dòng):

①在各次實(shí)驗(yàn)中,清水的溫度不同(如0℃、30℃100℃等)

②在各次實(shí)驗(yàn)中,_____________________________________;

③在各次實(shí)驗(yàn)前,                                     。

31、(每空2分,共20分)

西瓜消暑解渴,深受百姓喜愛,其中果皮深綠(G)對(duì)淺綠(g)為顯性,大籽(B)對(duì)小籽(b)為顯性,紅瓤(R)對(duì)黃瓤(r)為顯性,三對(duì)基因位于三對(duì)同源染色體上,遵循基因的自由組合定律,已知西瓜的染色體數(shù)目2n=22,請(qǐng)根據(jù)下圖所示的幾種育種方法的流程圖回答有關(guān)問題:(注:甲為綠皮黃瓤小籽,乙為白皮紅瓤大籽,且甲乙都能穩(wěn)定遺傳)

  

 

 

 

 

 

 

 

 

   (1)通過①過程獲得無子西瓜A時(shí)用到的試劑1是              ,該試劑發(fā)揮生理作用的特點(diǎn)是                                   。

   (2)②過程常用的試劑2是               ,而后通過③過程得到的無子西瓜果實(shí)的基因型和表現(xiàn)型分別為                    ,                    .

   (3)若甲乙為親本,通過雜交獲得F1,F(xiàn)1相互授粉得到F2,在F2中三對(duì)性狀均為顯性的個(gè)體所占的比例為              。經(jīng)過⑥過程進(jìn)行原生質(zhì)體融合得到雜種體細(xì)胞,該過程需要用到的酶是               ,⑦過程的原理是                 ,

   (4)經(jīng)由④過程得到的種子中胚乳細(xì)胞基因型可能為           ,若⑤過程為花藥離體培養(yǎng),則產(chǎn)生的F2基因型共有           種。

 

試題詳情

蒼南中學(xué)2008~2009學(xué)年第一學(xué)期高二期中考試

化學(xué)試卷

命題者:鄭益哈    審閱者:項(xiàng)延輝               2008.11

 

相對(duì)原子質(zhì)量: H 1   C 12    O 16     N 14

試題詳情

華中師范大學(xué)附中2009屆第二次理科綜合模擬考試

(4月23日)

本試卷共12頁(yè),滿分300分,考試時(shí)間150分鐘

第Ⅰ卷   選擇題(共126分)

試題詳情

豐都中學(xué)高2009級(jí)第五次月考

文科綜合

 

 

 

 

 

注意事項(xiàng):

1. 答題前,考生務(wù)必將自己的姓名、考號(hào)、考試科目用鉛筆涂寫在答題卡上。

2. 每小題選出答案后,用鉛筆把答題卡上對(duì)應(yīng)題目的答案標(biāo)號(hào)涂黑,如需改動(dòng),用橡皮擦干凈后,再選涂其它答案標(biāo)號(hào)。不能答在試題卷上。

3. 第II卷各題的答案,必須答在答題卡規(guī)定的地方。

4. 考試結(jié)束,將答題卡交回。

 

 

 

試題詳情

湖南省 “四市九!2009屆高三聯(lián)考學(xué)科網(wǎng)(Zxxk.Com).

學(xué)科網(wǎng)(Zxxk.Com).

命題學(xué)校:桃江一中    箴言中學(xué)    岳化一中學(xué)科網(wǎng)(Zxxk.Com).

時(shí)量:90分鐘    滿分:120分學(xué)科網(wǎng)(Zxxk.Com).

卷  選擇題(共48分)學(xué)科網(wǎng)(Zxxk.Com).

試題詳情

重慶市豐都中學(xué)2009屆高三第五次月考

英語試題

注意事項(xiàng):

1.           答題前,考生務(wù)必將自己的姓名、考號(hào)、考試科目用2B鉛筆涂寫在答題卡上。

2.           每小題選出答案后,用2B鉛筆把答題卡上對(duì)應(yīng)題目的答案標(biāo)號(hào)涂黑,如需改動(dòng),用橡皮擦干凈后,再選涂其它答案標(biāo)號(hào)。不能答在試題卷上。

3.           第II卷各題的答案,必須答在答題卡規(guī)定的地方。

4.           考試結(jié)束,將答題卡交回。

第一部分:

第一節(jié)(共5小題;每小題l.5分,滿分7.5分)

     聽下面5段對(duì)話。每段對(duì)話后有一個(gè)小題,從題中所給的A、B、C三個(gè)選項(xiàng)中選出最佳選項(xiàng),并標(biāo)在試卷的相應(yīng)位置。聽完每段對(duì)話后,你都有l(wèi)0秒鐘的時(shí)間來回答有關(guān)小題和閱讀下一小題。每段對(duì)話僅讀一遍。

1. Where will the man go for holiday?      

A. France.                     B. Egypt.                 C. Austria.    

2. Why did the man make the phone call?                  

A. His luggage was lost.           

B. His plane was late.        

C. His office was locked.

3. How much is a two-term course?

A. $50.                        B. $90.                   C. $120.

4. What does the man mean?

A. He will not cook dinner.                 

B He isn’t good at cooking fish.

C. He prefers not to cook the fish.

5. When will the man probably get to London?

A. At 8 o’clock.                 B. At 9 o’clock.            C. At 10 o’clock.

第二節(jié)(共12小題;每小題1.5分,滿分18分)

聽下面4段對(duì)話或獨(dú)白。每段對(duì)話或獨(dú)白后有幾個(gè)小題,從題中所給的A、B、C三個(gè)選項(xiàng)中選出最佳選項(xiàng),并標(biāo)在試題卷的相應(yīng)位置。聽每段對(duì)話或獨(dú)白前,你將有時(shí)間閱讀各個(gè)小題,每小題5秒鐘;聽完后,各小題將給出5秒鐘的作答時(shí)間。每段對(duì)話或獨(dú)白讀兩遍。

聽下面一段對(duì)話,回答第6和第7兩個(gè)小題。

6. What can we learn from the dialogue?

A .The woman was badly hurt.

B. The car was terribly damaged.

C. The kids were seriously injured.

7. What was the woman thinking about?

A. Getting the car repaired.

B. Selling the damaged car.

C. Buying a second-hand car.

聽下面一段對(duì)話,回答第8至第10三個(gè)小題。

8. What do we know about the man?

A. He wrote three essays last week.

B. He went to the beach with friends.

C. He drank late at a restaurant every night.

9. What did the woman do on Saturday?

A. She drove with a friend.        B. She watched movies.     C. She played tennis.

10. Which word can best describe the woman last week?

A. Quiet.                  B. Enjoyable.            C. Unforgettable.

聽下面一段對(duì)話,回答第11至第13三個(gè)小題。

11. On which day are the tickets available to the man?

A. October 3.               B. October 4.            C. October 5.

12. How much will the man pay if he books the ticket?

A.£35.                   B.£36.                 C.£37.        

13. What can be inferred about the man?

A. He was angry with the woman.

B. He thought the price was reasonable.

C. He gave up the idea of booking the ticket.

聽下面一段對(duì)話,回答第14至第17四個(gè)小題。

14. What is the relationship between the two speakers?

A. Writer and reader.          

B. Teacher and student.

C. Interviewer and interviewee.

15. How long did it take Tina to write the story?

A. A whole day.           B. About two hours.      C. Ninety minutes.

16. What do we know about the story?

A. It’s about Fred.         B. It’s about a party.      C. It’s about success.

17. What can we learn about Tina?

A. She has just been back from abroad.

B. She had a party for everyone in her street.

C. She won a writing competition unexpectedly.

第三節(jié)(共3小題;每小題1.5分,滿分4.5分)

聽下面一段材料,將第18至第20三個(gè)小題的信息補(bǔ)充完整。每空限填一個(gè)詞或一個(gè)數(shù). ,填入的內(nèi)容要寫在答題卡相應(yīng)的位置上。聽材料前,你將有時(shí)間閱讀各個(gè)小題,每小題5秒鐘,聽完后,各小題將給出15秒鐘的作答時(shí)間。本段材料讀兩遍。

 

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第二部分:  

 第一節(jié)  單項(xiàng)填空(共15小題;每小題1分,滿分15分)

21.When a giraffe has        drink, it has to stand with its front legs wide apart in order to reach      water.

A./; /                             B.a(chǎn); the                  C.the;/                   D./; the

22.Between the two periods of classes is a break,       we can have a short rest.

      A.then                        B.where               C.when               D.which

23.Some Australian Aborigines still live in a similar way to their ancestors, ______ others live in cities, towns and the country in the same way as their fellow Australians.

      A.while                        B.when                C.who                         D.which

24.― I am sorry to hear that your mother is ill in hospital.

  ― ____.

  A.That’s all right                          B.You don’t have to be so sorry  

  C.It is nothing                                 D.It’s very kind of you

25.He found _____ difficult to get his Chinese humour across to an English audience.

      A.that                   B.it                        C.one                         D.which

26. Since I broke my leg, my telephone hasn’t stopped ringing. My friends    to find out if the injury was serious.        

A. were trying         B. had tried                  C. have tried          D. are trying

27.You can ____ your time about handing in your homework; there is no rush.

A.have                   B.spend                  C.take                        D.save

28.Don’t _____ your eyes by using the computer too long.

      A.destroy          B. ruin                  C.  try                D. protect

29.The little boy is lucky enough to have escaped ____ to death in the big fire.

      A.burning                B.to be burned         C.being burned           D.to have been burned

30. After his retirement, John       finishing as one of his new hobbies .

   A. took up             B. took in                 C. took for                       D. took over

31.Some women      a good salary in a job instead of staying home, but they decided not to work for the sake of the family.

      A.must make            B.could have made      C.should have made         D.would make

32.--How did you find your visit to the Bird’s Nest and Water Cube, Jane?

---         

A. Oh, wonderful, indeed.                        B. By taking a number 3 bus.

C. I went there alone                            D.A classmates of mine showed me the way

33.― Mr Green, we’ve made two plans for your travel.Which would you like?

    ― ____.I don’t care.

      A.None                   B.Both                     C.Either                   D.Neither

34.― Your room looks a real mess, Tony.

    ― ____?

      A.What for                     B.So what                      C.What if                      D.So how

35.I don’t say I am against their plan.But the trouble is      they do doesn’t agree with what they say.

A.what that                B.that what        C.if what                   D.what

第二節(jié) 完形填空(共20小題;每小題1.5分,滿分30分)

    Lulu is a brave pet in our shelter.

    As you know, there are a lot of forest fires during the summer season.Many forests are badly 36 by fire each year.Not far from our shelter, a forest caught fire during this hot summer.We were in a heatwave which had been  37  for three days.

   Lulu rushed towards the forest where flames sent out a terrible 38 .I no longer had any   hope that Lulu would come  39  to the shelter.In fact, I was waiting for the firemen to announce his 40  in the forest, when suddenly, a fireman burst into my shelter and   41 me that my dog Lulu had  42  to save four kittens who were trapped by the flames.According to the fireman, Lulu seized the kittens, one by one moving them to a  43  place.I immediately accompanied the fireman to the forest to  44  the rescued kittens.When we arrived at the  45  of the incident, we found Lulu was not  46  .Then we heard the  47  of a dog came from the forest barking furiously.I  48  it was my dog Lulu.The fireman followed the tracks of the dog until we found him barking  49  by the side of an injured fireman who was lying on the ground and desperately   50  rescue.Thanks to Lulu, four kittens and a fireman were saved.

That day, I was very 51 of Lulu for his two heroic  52  toward the kittens and the fireman.Lulu showed much compassion (同情) for both animals  53  him and for a human being who was trying to  54  the fire with his colleagues.

This true story of genuine love and compassion shows us that pets are loving,  55  and compassionate.We should love and protect them.One day they could do us a good turn.

36.A.damaged                 B.injured                 C.wounded                  D.hurt

37.A.taking on                B.coming on          C.going on           D.keeping on

38.A.heat                  B.energy                       C.fever                  D.burn

39.A.by                     B.round                        C.up                     D.back

40.A.return                 B.honour                      C.death                 D.a(chǎn)ction

41.A.warned                    B.informed                     C.communicated       D.gave

42.A.tried                   B.wanted                      C.managed          D.failed

43.A.safe                    B.cool                     C.lonely                  D.beautiful

44.A.pick out                     B.pick up                C.bring on                     D.bring up

45.A.scene                 B.scenery                C.situation                    D.view

46.A.here                           B.out                       C.in                         D.there

47.A.voice                  B.noise                    C.a(chǎn)ccent                      D.sound

48.A.a(chǎn)cknowledged               B.recognized                C.heard                  D.listened

49.A.heavily                      B.strongly                C.loudly                 D.happily

50.A.waiting for          B.waiting on           C.a(chǎn)sking for           D.looking for

51.A.surprised                    B.satisfied                      C.shamed                     D.proud

52.A.things                  B.a(chǎn)ctions                C.dos                             D.reactions

53.A.a(chǎn)s                              B.like                       C.for                        D.to

54.A.put off                B.put away                  C.put up                D.put out

55.A.careful                B.careless                      C.caring                       D.carefree

第三部分 閱讀理解(共20小題;每小題2分,滿分40分)

A

I was off to go back to work one evening when I saw my two children were busy sewing things on the sewing machine.My 11-year-old daughter was, in the midst of her project, going to assist her elder brother in making a little cushion.I left, and after a few hours returned to find a mess in the kitchen and in the front room, and both children sitting in front of the television.

Having had a long day, I was too tired to greet them and then I noticed the material my daughter had used.It had been purchased to make a color-coordinated (顏色協(xié)調(diào)的) baby blanket, and now had chunks (塊) cut out of almost every piece of fabric (織物).Not stopping to listen, I exploded at the children and explained how angry I was at what had been done.

My daughter listened to me sheepishly, not trying to defend herself at all, but the pain could be seen written across her face.She retreated to her room, and spent some time there alone before she came out to say good night and once again apologized for the mistake she had made.

A few hours later, as I was preparing to go to bed, I found that there on my bed lay a beautiful, little cushion made out of the forbidden fabric, with the words “I LOVE MOM”.Alongside it was a note apologizing again, and the innocence in which she had taken the fabric.

To this day, I still get tears in my eyes when I think of how I reacted and still feel the pain of my actions.It was I who then went to her and apologized for my actions.I display with great pride the cushion on my bed, and constantly use it to remind me that nothing in this world is greater than a child’s love.

56.The underlined word can be replaced by “       ”.

A.hopefully came up                             

B.hopefully went back        

C.quietly came up                                 

D.quietly went back

57.What did the children do?

      A.They cut out the material and made it into a baby blanket.

      B.They cut the material into pieces and used them to clean the TV set.

      C.They cut the material into pieces on which they wrote apologizing words.

      D.They made a cushion with the material to show their love for Mom.

58.What can be inferred from the text?

A.The two children are good at sewing.

B.The two children are introverted (內(nèi)向的).

C.The mother is often rude to her children.

D.The mother is regretful for what she did.

59.The passage is mainly to tell about   .

A.a(chǎn) mom’s tears                 B.a(chǎn) mom’s love                  C.a(chǎn) child’s love           D.a(chǎn) child’s complaint

B

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60. The purpose of the advertisements is________.

A. to start a business              B. to employ English teachers    

C. to provide the latest jobs         D. to help people find a suitable job

61. According to the first advertisement,  we can learn that_______.

A. English Teacher agency charges teacher for this service

B. you must go online to offer your basic information first

C. you may call to get more information about the job

D. once you enter for English Teacher agency, you will get a job

62 In the third advertisement, the private English tutor should________

A. be an English language expert from UK

B. speak American English

C. have rich teaching experience

D. have the ability to deal with changing situations

63. If you didn’t pass the interview for Teacher/Librarian, the probable reason should be that ________.

A. you like working with children        B. you have a strong team spirit

C. you lack teaching experience         D. you can only speak English

C

'We convince ourselves that life will be better once we are married, have a baby, then another. Then we get frustrated (使… 受挫) because our children are not old enough, and that all will be well when they are older. Then we are frustrated because they reach adolescence and we must deal with them. Surely we'll be happier when they grow out of the teen years.

We tell ourselves our life will be better when our husband/wife gets his/her act together, when we have a nicer car, when we can take a vacation, when we finally retire. The truth is that there is no better time to be happy than right now. If not, then when? Your life will always be full of challenges. It is better to admit as much and to decide to be happy in spite of it all.

For the longest time, it seemed that life was about to start-----real life.

But there was always some obstacle(挫折)along the way, a hard time to get through, some work to be finished, some time to be given, a bill to be paid. Then life would start. It finally dawned on me that that those obstacles were part of life. Little by little, that point of view also helped me see that there isn't any road to happiness.

Happiness is the road. So, enjoy every moment. And bear in mind that Time waits for no one. So stop waiting for school to end, for a return to school, to lose ten pounds, to gain ten pounds, for work to begin, to get married, for Friday evening, for Sunday morning, waiting for a new car, for your mortgage(借款)to be paid off, for spring, for summer, for fall, for winter, for the first or the fifteenth of the month, for your song to be played on the radio, to die, to be reborn… before deciding to be happy.

Happiness is a voyage, not a destination. There is no better time to be happy than… NOW! Live and enjoy the moment.'

64. The most appropriate title for the passage should be______.

A. Happiness Is a Frustration               B. Happiness Is a Destination 

C. Happiness Is a Dream                  D. Happiness is a Process

65. The first two paragraphs mainly tell us_______.

A. life is a worthwhile but challenging voyage

B. so long as you believe you can, you can

C. people tend to think the future will be brighter than now

D. people feel at a loss about their life

66. The phrase underlined “dawned on me” in the third paragraph probably means______.

A. became gradually known by me             B. disappointed me

C. cheered me up                           D. lighted me up

67 The writer thinks _______is a real happiness

A. setting our imagination free                 B. enjoying our present life

C. finding our own shortcut to success           D. facing obstacles and challenges bravely

D

Jenny Bowen, an American living in Beijing, has been selected as the only American to carry the 2008 Beijing Olympic torch on Chinese soil.She and seven other non-Chinese winners were chosen from a pool of 262 applicants (申請(qǐng)者) from 47 countries in a contest organized by Chinese computer maker Lenovo Group and the official English-language newspaper, China Daily.When Bowen runs with the Olympic torch, she will not only be representing the United States, but also be representing thousands of Chinese orphans (孤兒).

Bowen, a mother of two adopted Chinese daughters, is the executive director of Half the Sky Foundation, an organization which was founded in 1998 and aims to enrich the lives and improve the prospects for orphaned children in China.In nearly 10 years, Bowen and Half the Sky have touched the lives of over 13,000 children.Half the Sky is now present in 36 welfare (福利) institutions in 28 Chinese cities.About 4,000 children are active in the program, which provides trained staff, educational tools, medical support and nurturing love for orphans.

Bowen hopes that running with the Olympic torch would help draw attention to the children in China.She will be among 19,400 runners who will carry the flame along an 85,000-mile, 130-day route across five continents.Beijing organizers say it will be the longest torch relay in Olympic history.

Like Bowen, the seven other non-Chinese winners, including a German engineer and a Venezuelan graphic designer, live in China.Other countries represented will be the Philippines, Colombia, India, Japan and Russia.

According to Olympic organizers, candidates (候選人) were selected based on an online vote, committee selection, their “l(fā)ove of Chinese culture and history” and devotion to “communicating information of a real China to their native countries”.Each runner will carry the torch for 200 meters on Chinese soil.

68.According to the text, Jenny Bowen ____.

      A.is interested in Chinese sports

      B.founded Half the Sky, an organization which aims to help Chinese orphans

      C.has adopted 13,000 children during 10 years

      D.loves Chinese culture and history

69.Bowen hopes that being a torch runner would help ____.

      A.collect educational tools, medical support, etc, for orphans

      B.make Half the Sky Foundation well known

      C.communicate information of America

      D.draw attention to orphans in China

70.Which of the following about the 2008 torch relay is WRONG?

      A.The contest for its runners is organized by Lenovo Group and China Daily.

      B.It has eight foreign runners, including an American, a German and a Venezuelan.

      C.It will be the longest relay with the most runners in Olympic history.

      D.It will be an opportunity to communicate information of a real China to the world.

71.What’s the best title for the passage?

A.A US WOMAN TO CARRY 2008 OLYMPIC TORCH IN CHINA.

B.HAPPY LIFE OF A US WOMAN IN CHINA.

C.DEVELOPMENT OF CHINESE WELFARE INSTITUTIONS.

D.THE LONGEST TORCH RELAY IN OLYMPIC HISTORY.

72.The text is a(n) ____.

      A.biography                B.a(chǎn)rgument           C.news report               D.a(chǎn)dvertisement

 

E

One day not too long ago the employees of  a  large company in St .Louis ,Missouri returned from their lunch break and were greeted with a sign on the front door. The sign said: “Yesterday the person who has been hindering(阻止) your growth in this company passed away .

We invite you to join the funeral(葬禮) in the room that has been prepared in the gym .”

 At first everyone was sad to hear that one of their colleagues had died, but after a while they started getting curious about who this person might be .The excitement grew as the employees arrives arrived at the gym to pay their last respects .Everyone wondered: “Who is this person who was hindering my progress? Well, at least he’s no longer here!”

 One by one the employees got closer to the coffin and when then they looked inside it they suddenly became speechless. They stood over the coffin, shocked and in silence, as if someone had touched the deepest part of their soul. There was a mirror inside the coffin: everyone who looked inside it could see himself. There was also a sign next to the mirror that said : “There is only one who is capable to set limits to your growth: it is YOU.”

You are the only person who can revolutionize your life. You are the only person who can influence your happiness, you realization and your success. You are the only person who can help yourself. Your life does not change when your boss changes, when your friends change, when your parents change, when your partner changes, when your company changes. Your life changes when YOU change, when you go beyond your limiting beliefs, when you realize that you are the only one responsible for your life.

73.Who has ever resisted the employees of the large company in St .Louis ,Missouri?

 A. The boss                                   B. The leader of their group

C. The sign                                      D. The employees themselves

74.Who passed away in the large company?

A. No one                                 B. The boss 

C. One of the employees                    D. One of the colleagues

75.What’s the best title of this paragraph?

 A. Independent      B. Hard Working       C. Team Work        D. Last Respects

第四部分 寫作(共兩節(jié),滿分35分)

第一節(jié)        短文改錯(cuò)(共10小題;每小題1分,滿分10分)

My aunt lives in a village far from my town.                    

Last year she came to visit us, brought me a                        76.____

Little dog for a birthday present. It was a little black                   77.____

dog with white spots.It was such lovely that I liked                   78.____

it at once. Every day after school I played with dog.                     79.____

and it gave me much more pleasure. I was glad to                        80.____

have it with myself. One day the dog went out and                   81.____

never came back again. All my families were out searching               82.____

for it but it was nowhere to be found. What I worried                 83.____

about it all days! A week later a letter came to                      84.____

my aunt , saying that the little dog has returned.                     85   

 

第二節(jié) 書面表達(dá)(滿分25分)

高三學(xué)生面臨著沉重的學(xué)習(xí)壓力,很多學(xué)生利用課間十分鐘的休息時(shí)間學(xué)習(xí)。假設(shè)你是新華中學(xué)高三年級(jí)的學(xué)生李越, 就此現(xiàn)象給中學(xué)生英語報(bào)寫封信,發(fā)表自己的看法。 信的內(nèi)容須包括以下要點(diǎn):

       1. 課間十分鐘的休息很有必要。

       2.你是怎樣利用這課間十分鐘的。

       注意: 1.詞數(shù)100-120;2.信的開頭已給出。

Dear editor,

     I’m a Senior 3 student from Xinhua Middle School.                                  

                                                                               

                                                                                

                                                                               

                                                                               

                                                                                

                                                                               

                                                                               

                                                                               

                                                                                

                                                                               

                                                               Yours,

                                                               Li Yue

創(chuàng)新試題:

23 , 25, 28 ,45, 73--75

1―5 AABCB         6―10 BCAAB      11―15 ABCCB         16―17 CC      

18. hands       19. typing      20. fun   
21-25 BCADB 26-30 ACCCA 31-35 BACBB
36-40 ACADC 41-45 BCABA 46-50 DDBCA 51-55 DBBDC
56-60 DDDCB 61-65 BDDDC 66-70 ABDDC 71-75 ACDAD
短文改錯(cuò)

76.brought → bringing77.for →as 78.such → so 79.With后加 the80.去掉more81.myself → me 82.families→family  83.What→ How  84.to→ from85.has→ had
書面表達(dá) (One possible version)

Dear editor,

     I’m a senior 3 student from Xinhua Middle School. As is known to all, senior3 students are suffering heavy pressure of study. As a result, many students are trying to spare every minute to study, even during the ten-minute break between classes.

     In my opinion, taking the break is definity necessary, which makes us relaxed both physically and mentally. The ten-minute break is meant for us to relax and prepare for the next class . Only by doing so can we have more energy to study effectively in class.

     My ten-minute break is always pleasing as well as relaxing. Sometimes I do some simple exercises. Sometimes I have a free chat with my classmates or just take a walk outside. Therefore, I always feel energetic and listen attentivly in class.

                                                         Yours,

                                                          Li Yue

重點(diǎn)解析
22.C。when 在此引導(dǎo)非限制性定語從句,等于during which, 在從句中作時(shí)間狀語。
24.D。根據(jù)語境,第一人對(duì)其母親表示關(guān)心,第二人應(yīng)表示感謝。
27.C。根據(jù)后面的there is no rush可知應(yīng)選take your time,其意為to do something slowly or carefully without hurrying。
28.C。“考驗(yàn)、折磨、傷害”destroy與ruin破壞程度較大。

29.C。escape后跟動(dòng)名詞作賓語;由于主語the little boy是burn動(dòng)作的承受者,所以要用動(dòng)名詞的被動(dòng)式。
33.C。根據(jù)后面的“I don’t care”,可知格林先生認(rèn)為任何一個(gè)計(jì)劃都是可以的。
34.B。So what? 意為“那又怎么樣呢?”,用來表示說話人對(duì)某事不在意,認(rèn)為其不重要;符合語境。
35.B。is后為that引導(dǎo)的表語從句;在表語從句中,包含有由what引導(dǎo)的主語從句what they do,what在主語從句中作do的賓語。
36.A。夏季經(jīng)常發(fā)生森林大火,故每年的大火使許多森林嚴(yán)重受損。damage損壞,毀壞;動(dòng)作的承受者多為物,injure使人受傷;wound 尤指用刀、槍等傷害某人;hurt傷人的身體或感情。
37.C。這里需要一個(gè)表示“繼續(xù),持續(xù)”且相當(dāng)于不及物動(dòng)詞的詞組,只有g(shù)o on 符合。
38.A。大火應(yīng)該產(chǎn)生熱。B表示“能量”;C表示“發(fā)燒”;D表示“燒傷”,均不符合句意。
39.D。根據(jù)語境,這里應(yīng)是等Lulu回屋。
40.C。根據(jù)上文可知我沒有抱任何指望 Lulu能夠重新回來。故此句意思為:其實(shí),我在等待著消防人員來告知我Lulu的死訊。
41.B。能夠用于“v.+ sb + that從句”結(jié)構(gòu)的只有A、B項(xiàng);A項(xiàng)不符合語境。
42.C。根據(jù)后文,Lulu成功救出了4只小貓。
43.A。safe安全的;cool涼爽的;lonely寂寞的;beautiful漂亮的。根據(jù)語境這里應(yīng)選safe。
44.B。pick out挑出;pick up接;bring on 引起;bring up撫養(yǎng)。根據(jù)上下文“我”同消防人員一起去接那四只被Lulu救了的小貓。
45.A。表示“現(xiàn)場(chǎng)”的只有A項(xiàng)。
46.D。根據(jù)下文“Then the sound of a dog came from the forest”,可知我們到達(dá)事故現(xiàn)場(chǎng)時(shí)Lulu并不在那里。
47.D。根據(jù)后面的barking,這里應(yīng)填表示“聲音”的詞。A表示“說話聲,嗓音”,多用于人的聲音;B表示“噪音”,與語境不符;C表示“口音”。
48.B。這里的意思是:我聽出了是我的狗在叫。acknowledge 承認(rèn);recognize分辨出,認(rèn)出,(此處為聽出);hear聽見;listen聽,不及物。
49.C。大聲地叫,應(yīng)用loudly。
50.A。根據(jù)句意,該消防員身受重傷,只能是被動(dòng)地等待別人來救援。
51.D。根據(jù)語境和搭配應(yīng)選proud, be proud of表示“對(duì)……感到自豪”。
52.B。表示具體的行為用action。
53.B。這里是表示“像他這樣的動(dòng)物”。
54.D。根據(jù)上下文及邏輯可知消防人員應(yīng)在滅火。put off推遲;put away把……收起來;put up舉起,張貼;put out撲滅。
55.C。該空前的loving表示“有愛心的”,后面的compassionate表示“有同情心的”,這里應(yīng)填與其并列的caring“關(guān)心他人的”。
56.D。從上文My daughter listened to me sheepishly, not trying to defend herself at all, but the pain could be seen written across her face.可以看出女兒局促不安地聽著,沒有打算為自己辯護(hù),因此她只會(huì)默默地回到自己房間去。
57.D。兩個(gè)小孩將作者原本用來做嬰兒毯的材料做成了*墊,并在上面寫了“I LOVE MOM”。小孩道歉的話是寫在另一張紙條上的。
58.D。根據(jù)最后一段,作者在現(xiàn)在想起時(shí)仍然會(huì)噙著淚水,可知她對(duì)自己當(dāng)時(shí)的行為感到后悔;A、B、C都不能從文章的內(nèi)容推出。
59.C。主旨大意題。本文主要通過一個(gè)感人的故事向我們講述了孩子對(duì)母親的愛。A項(xiàng)雖與文章內(nèi)容有關(guān),但并非全文主旨。
61.B第一則廣告第二段 “What you need to do is to log on our website…except contact details”

62.D  “Tutors should be fairy flexible…be of professional appearance”

63.D  -Be a Chinese\ English speaking librarian

69.D。根據(jù)第三段“Bowen hopes that running with the Olympic torch will help draw attention to the children in China.”可得出答案。
70.C。第三段提到“it will be the longest torch relay in Olympic history.”,但文章并未提到是runners最多的;根據(jù)“in a contest organized by … Lenovo Group and … China Daily.”A的表述是正確的;根據(jù)倒數(shù)第二段,B表述正確;根據(jù)最后一段,D表述正確。
71.A。主旨大意題。文章主要講的是生活在北京的Bowen將成為2008年為北京奧運(yùn)會(huì)傳遞火炬的唯一一位美國(guó)人。
72.C。文章首先概述事件本身,接著分析背景,然后順帶提到其它相關(guān)信息,根據(jù)其結(jié)構(gòu),應(yīng)為新聞報(bào)道。

試題詳情

上海市控江中學(xué)高二化學(xué)第一學(xué)期期中考試卷(2008.11)

姓名         班級(jí)      學(xué)號(hào)      得分    

相對(duì)原子質(zhì)量:H―1      O―16         Fe―56   

試題詳情

高三物理二輪復(fù)習(xí)查漏補(bǔ)缺(一)

班次      姓名           學(xué)號(hào)    

1.太陽(yáng)圍繞銀河系中心的運(yùn)動(dòng)可視為勻速圓周運(yùn)動(dòng),其運(yùn)動(dòng)速度約為地球公轉(zhuǎn)速度的7倍,軌道半徑約為地球公轉(zhuǎn)軌道半徑的2×109倍。為了粗略估算銀河系中恒星的數(shù)目,可認(rèn)為銀河系中所有恒星的質(zhì)量都集中在銀河系中心,且銀河系中恒星的平均質(zhì)量約等于太陽(yáng)質(zhì)量,則銀河系中恒星數(shù)目約為(    )

A.1015                         B.1013                      C.1011                       D.109

 

2.如圖所示,在水平面上有兩條平行金屬導(dǎo)軌MN、PQ,導(dǎo)軌

間距為d,勻強(qiáng)磁場(chǎng)垂直于導(dǎo)軌所在的平面向下,磁感應(yīng)強(qiáng)

度大小為B,兩根金屬 桿間隔一定的距離擺放在導(dǎo)軌上,

且與導(dǎo)軌垂直,兩金屬桿質(zhì)量均為m,電阻均為R,兩桿與

導(dǎo)軌接觸良好,導(dǎo)軌電阻不計(jì),金屬桿與導(dǎo)軌間摩擦不計(jì),

現(xiàn)將桿2固定,桿1以初速度v0滑向桿2,為使兩桿不相碰,則兩桿初始間距至少為( )

A.                      B.                            C.                    D.

 

3.一束包含a、b兩種不同頻率的光,照射到金屬板MN上O點(diǎn),其中a光能使金屬板發(fā)

生光電效應(yīng),現(xiàn)在MN板前放一兩面平行的玻璃磚,結(jié)果光束被分成與入射光平行的兩束出射光,分別射到P、Q兩點(diǎn),如圖所示,則( 。

A.a(chǎn)光射到P處

B.a(chǎn)光在真空中波長(zhǎng)大于b光在真空中波長(zhǎng)

C.a(chǎn)光在玻璃中傳播速度大于b光在玻璃中傳播速度

D.用同一雙縫干涉儀做光的雙縫干涉實(shí)驗(yàn),a光條紋間 

距大于b光條紋間距

4.質(zhì)量m的汽車在平直公路上以恒定功率P由靜止開始運(yùn)動(dòng),汽車所受阻力

是車重的0.5倍,由以上信息和你在高中階段所學(xué)過的物理知識(shí),能求出 

的物理量有(    )

A.汽車加速運(yùn)動(dòng)的時(shí)間  B.汽車加速過程中的位移

C.汽車的最大速度    D.汽車的速度為最大速度一半時(shí)的加速度

 

5.如圖所示,兩加上電壓的水平平行金屬板之間放了一薄帶 

電金屬網(wǎng),形成了上下兩個(gè)勻強(qiáng)電場(chǎng)空間,場(chǎng)強(qiáng)分別為E1、

E2。兩不計(jì)重力的帶電微粒從離開金屬網(wǎng)d1、d2處先后水平

射入電場(chǎng)(不考慮兩微粒間的庫(kù)侖力),運(yùn)動(dòng)軌跡與金屬網(wǎng)

相交于同一點(diǎn),則(    )

A.兩微粒帶同種電荷

B.若兩微粒初速度相同,則到達(dá)金屬網(wǎng)所用的時(shí)間相同

C.不改變其他物理量,僅將E1 d1同時(shí)減半,兩粒子仍然能相交于同一點(diǎn)

D.若E1=E2,d1d2,則上方微粒的荷質(zhì)比(帶電量與質(zhì)量的比值)較大

6.如圖所示,在某空間同時(shí)存在著相互正交的勻強(qiáng)電場(chǎng)E和勻強(qiáng)磁場(chǎng)B,電場(chǎng)方向豎直向下,有質(zhì)量分別為m1、m2ab兩帶負(fù)電的微粒,a的電量為q1,恰能靜止于場(chǎng)中空間的c點(diǎn),b的電量為q2,在過c點(diǎn)的豎直平面內(nèi)做半徑為r的勻速圓周運(yùn)動(dòng),在c點(diǎn)a、b相碰并粘在一起后做勻速圓周運(yùn)動(dòng),則(   )

    A.a、b粘在一起后在豎直平面內(nèi)以速率做勻速圓周運(yùn)動(dòng)

    B.a、b粘在一起后仍在豎直平面內(nèi)做半徑為r的勻速圓周運(yùn)動(dòng)

    C.ab粘在一起后在豎直平面內(nèi)做半徑大于r的勻速圓周運(yùn)動(dòng)

D.a、b粘在一起后在豎直平面內(nèi)做半徑為的勻速圓周運(yùn)動(dòng)

7.質(zhì)子和中子是由更基本的粒子即所謂“夸克”組成的.兩個(gè)強(qiáng)作用電荷相反(類似于正負(fù)電荷)的夸克在距離很近時(shí)幾乎沒有相互作用(稱為“漸近自由”);在距離較遠(yuǎn)時(shí),它們之間就會(huì)出現(xiàn)很強(qiáng)的引力(導(dǎo)致所謂“夸克禁閉”).作為一個(gè)簡(jiǎn)單的模型,設(shè)這樣的兩夸克之間的相互作用力F與它們之間的距離r的關(guān)系為:

式中F0為大于零的常量,負(fù)號(hào)表示引力.用U表示夸克間的勢(shì)能,令U0=F0(r2―r1),取無窮遠(yuǎn)為勢(shì)能零點(diǎn).下列U-r圖示中正確的是

 

 

 

 

 

8.如圖所示,在甲、乙兩個(gè)相同的水平圓盤上,分別沿半徑方向放置用長(zhǎng)度相同的細(xì)線相連質(zhì)量均為m的小物體A(位于轉(zhuǎn)軸處)、B和C、D,它們與圓盤之間的動(dòng)摩擦因數(shù)相等。當(dāng)甲、乙的角速度緩緩增大到A和B、C和D恰好將要相對(duì)圓盤滑動(dòng)時(shí),則下列說法中錯(cuò)誤的是(    )

A.若突然剪斷細(xì)線, A仍靜止,B向外滑動(dòng)

B.若突然剪斷細(xì)線, C仍靜止,D向外滑動(dòng)

C.若突然剪斷細(xì)線, C、D均向外滑動(dòng)

D.當(dāng)角速度繼續(xù)增加時(shí),C、D將向外滑動(dòng)

 

 

 

 

9.(Ⅰ)為研究滑塊的運(yùn)動(dòng),選用滑塊、鉤碼、紙帶、毫米刻度尺、帶滑輪的木板、以及由漏斗和細(xì)線構(gòu)成的單擺等組成如圖1所示的裝置,實(shí)驗(yàn)中,滑塊在鉤碼作用下拖動(dòng)紙帶做勻加速直線運(yùn)動(dòng),同時(shí)讓單擺垂直于紙帶運(yùn)動(dòng)方向做小擺幅擺動(dòng),漏斗可以漏出很細(xì)的有色液體,在紙帶上留下的痕跡記錄了漏斗在不同時(shí)刻的位置,如圖2所示。

①漏斗和細(xì)線構(gòu)成的單擺在該實(shí)驗(yàn)中所起的作用與下列哪個(gè)儀器相同?________(填寫儀器序號(hào))

A、打點(diǎn)計(jì)時(shí)器            B、秒表        C、毫米刻度尺            D、電流表

②如果用該實(shí)驗(yàn)裝置測(cè)量滑塊加速度,對(duì)實(shí)驗(yàn)結(jié)果影響最大的原因是:

                                !

(Ⅱ)現(xiàn)提供如下器材,測(cè)定定值電阻Rx(約為5KΩ)的阻值

a.兩相同電流計(jì)G1、G2(50μA,內(nèi)阻約4KΩ)

b.電阻箱R1(0~9999.9Ω)

c.電阻箱R2(0~99999.9Ω)

d.電源E(電動(dòng)勢(shì)約3V,內(nèi)阻不計(jì))

e.滑動(dòng)變阻器R(最大阻值20Ω)

f.開關(guān)兩個(gè),導(dǎo)線若干

①由于電流計(jì)量程很小,需要先將它們進(jìn)行改裝,某同學(xué)設(shè)計(jì)了用半偏法測(cè)電流計(jì)內(nèi)阻的電路,如圖,實(shí)驗(yàn)過程如下:先將R2調(diào)為最大,然后閉合K1、K2,調(diào)節(jié)R1、R2,保證­­­_________滿偏,使_________半偏(填寫元件符號(hào))由此測(cè)得電流計(jì)G2­­的阻值;

②若測(cè)得電流計(jì)內(nèi)阻為4.2KΩ,要將G2改裝成量程為3V的電壓表,需串聯(lián)的電阻值為___________

③采用改裝后的電壓表并伏安法測(cè)量待測(cè)電阻阻值,請(qǐng)?jiān)谔摼框內(nèi)畫出實(shí)驗(yàn)電路圖。

10.“3m跳板跳水”其運(yùn)動(dòng)過程可簡(jiǎn)化為:運(yùn)動(dòng)員走上跳板,跳板被壓縮到最低點(diǎn)C,跳板又將運(yùn)動(dòng)員豎直向上彈到最高點(diǎn)A,然后運(yùn)動(dòng)員做自由落體運(yùn)動(dòng),豎直落入水中。將運(yùn)動(dòng)員視為質(zhì)點(diǎn)。已知運(yùn)動(dòng)員質(zhì)量為m,重力加速度為g,取跳板的水平點(diǎn)為B,AB間、BC間和B與水面間的豎起距離分別為h1h2、h3,如圖所示,求:

(1)運(yùn)動(dòng)員入水前速度大。

   (2)跳板被壓縮到最低點(diǎn)C時(shí)具有的彈性勢(shì)能(假設(shè)從C到B的過程中,運(yùn)動(dòng)員獲得的機(jī)械能為跳板最大彈性勢(shì)能的k倍,k < 1)。

 

 

 

 

 

 

 

 

 

 

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      L2

       

       

       

       

       

       

       

       

       

       

       

       

       

       

      12. 如圖所示,傾角為θ=30°的斜面固定于水平地面上,在斜面底端O處固定一輕質(zhì)彈簧,斜面頂端足夠高。斜面上OM段光滑,M點(diǎn)以上均粗糙。質(zhì)量為 m 的物塊A在M點(diǎn)恰好能靜止,在離M點(diǎn)距離為 L 的N點(diǎn)處,有一質(zhì)量為2m的光滑物塊B以初速度 v0 滑向物塊A,若物塊間每次碰撞(碰撞時(shí)間極短)后即緊靠在一起但不粘連,物塊間、物塊和彈簧間的碰撞均為正碰。求:

      (1)物塊A在M點(diǎn)上方時(shí),離M點(diǎn)的最大距離;

      (2)系統(tǒng)產(chǎn)生的總內(nèi)能E。

       

       

       

       

       

       

       

       

       

       

       

      高三物理二輪復(fù)習(xí)查漏補(bǔ)缺(一)

      題號(hào)

       1

      2

      3

      4

       5

       6      

       7

       8

      答案

      C

      C

      A

      CD

      BC

      D

       B

      C

      9.(Ⅰ)(6分)

      ① A    (3分)

      ② 漏斗重心變化導(dǎo)致單擺有效擺長(zhǎng)變化,從而改變單擺周期,影響加速度的測(cè)量值 (3分)

      (Ⅱ)(12分)

      ①  G1    G2      (4分)

      ②  55.8 KΩ       (4分)

      ③  如圖  (安培表外接也可以)      (4分)

      10.(1)運(yùn)動(dòng)員從A到水面的過程中機(jī)械能守恒,有:

           解得:                                     

         (2)運(yùn)動(dòng)員從C到B的過程中,運(yùn)動(dòng)員和板組成系統(tǒng)的彈性勢(shì)能部分轉(zhuǎn)化為運(yùn)動(dòng)員的重力勢(shì)能,即:                                                              

          解得:                               

      11. (1)設(shè)速度大小為v1,此時(shí)線框的重力和線框ab邊受到的安培力平衡,令此時(shí)線框中的電流強(qiáng)度為I1,應(yīng)有BI1L1=mg(2分),(2分),故(2分)

      (2)設(shè)線框達(dá)到速度v1時(shí),cd邊進(jìn)入磁場(chǎng)的深度為h1,從下落到此時(shí)安培力對(duì)線框做功為W1。對(duì)于線框由動(dòng)能定理,得…①(1分)

      線框從有速度v1到完全進(jìn)入磁場(chǎng)時(shí),線框作勻速運(yùn)動(dòng),此過程中安培力對(duì)線框做功W2,由動(dòng)能定理有mg(L2-h1)+W2=0…②(1分),

      從線框完全進(jìn)入磁場(chǎng)到cd邊剛到磁場(chǎng)區(qū)域下邊界NN'的過程中,線框中無電流,故此過程中安培力對(duì)線框所做的功為零(1分),所以整個(gè)過程中磁場(chǎng)作用于線框的安培力所做的總功為W=W1+W2 ③,由①、②、③式

      可得,W= …④(1分)

      (3)設(shè)線框的cd邊剛剛穿出磁場(chǎng)區(qū)域下邊界NN'時(shí)線框的速度v2,則從線框剛下落到cd邊穿出磁場(chǎng)的整個(gè)過程中,由動(dòng)能定理,可得mg(h+H)+W=…⑤(1分),

      由④、⑤式解得 … ⑥(1分)

      線框的cd邊剛出磁場(chǎng)時(shí)只有ab邊切割磁感線,使線框中產(chǎn)生感應(yīng)電流,導(dǎo)致ab邊受到向上的安培力,設(shè)此時(shí)線框的加速度為a,且設(shè)向下的方向?yàn)檎较,則由電磁感應(yīng)定律及牛頓第二定律,有…⑦(1分)

      由 ⑥、⑦式可解得<0

      所以所求加速度大小 (1分),方向豎直向上。

      12.(1)設(shè)物塊B第一次和物塊A碰前的速度為υ1,碰后的共同速度為υ2,物塊B從N運(yùn)動(dòng)到M點(diǎn)由動(dòng)能定理有

            2mgLsinθ=               ①

          對(duì)物塊B和物塊A,在碰撞過程中由動(dòng)量守恒定律有

            2mυ1 = (2m + m ) υ2                                        ②

      物塊A、B從第一次在M點(diǎn)相碰后至再次回到M點(diǎn)的過程中機(jī)械能守恒,兩物塊速度大小不變,方向反向。其后物塊A、B將做勻減速運(yùn)動(dòng),設(shè)加速度分別設(shè)為a1、a2.

      由牛頓第二定律有,對(duì)物塊A:     μmgcosθ+mgsinθ = m a1

      對(duì)光滑物塊B: 2mgsinθ=2m a2

      又由題意中“物塊A恰好靜止”可得

         μmgcosθ= mgsinθ                          ③

      得 a1 > a2.

      所以當(dāng)A運(yùn)動(dòng)到最高處?kù)o止時(shí),物塊B還在向上減速運(yùn)動(dòng),未與A相碰.

      對(duì)A從M到最高處由動(dòng)能定理有

               ④

      由題知                             ⑤

      由①②③④⑤式得  s =

      (2)物塊A、B最終緊靠一起在OM間做往復(fù)運(yùn)動(dòng),從物塊B開始運(yùn)動(dòng)至A、B一起運(yùn)動(dòng)到M點(diǎn)且速度為零的過程中,由能量轉(zhuǎn)化和守恒定律有

          

      所以系統(tǒng)產(chǎn)生的總內(nèi)能  E = 3mgL.

       

       

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