B 13.D 14.D 15.D 16.C 17.B 18.C 19.D 20.D 查看更多

 

題目列表(包括答案和解析)

下表是元素周期表中的部分信息,A、B、C、D分別是4種粒子的結(jié)構(gòu)示意圖.請根據(jù)圖中信息及相關(guān)要求真空.
3  Li
4  Be
5  B
6  C
7  N
8  O
9  F
10  Ne
11  Na
12  鎂
Mg
13  Al
14  Si
15  P
16  S
17  Cl
18  Ar

精英家教網(wǎng)

(1)硫元素的原子的核外電子數(shù)為______.
(2)A、B、C、D 4種粒子中,易得到電子,形成穩(wěn)定結(jié)構(gòu)的是______(填字母序號).
(3)某離子帶2個(gè)單位正電荷,其結(jié)構(gòu)示意圖如圖
精英家教網(wǎng)
,該離子的符號是______.

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下表列出了1-18號元素的原子序數(shù)和元素符號:
原子序數(shù) 1 2 3 4 5 6 7 8 9
元素符號 H He Li Be B C N O F
原子序數(shù) 10 11 12 13 14 15 16 17 18
元素符號 Ne Na Mg Al Si P S Cl Ar
請回答下列問題:
(1)1一18號元素中屬于稀有氣體元素的有He、Ne、
Ar
Ar
(填元素符號).
(2)10一18號元素中屬于金屬元素的有
5
5
種.
(3)如圖為某粒子的結(jié)構(gòu)示意圖,當(dāng)x與y滿足
x=10+y
x=10+y
的條件時(shí),該粒子為原子.
(4)具有相同原子數(shù)和電子數(shù)的分子或離子叫等電子體,等電子體具有相似的結(jié)構(gòu)和性質(zhì).下列各組粒子中屬于等電子體的是
B
B
(填字母序號).
A.NO和O2      B.CO和N2      C.SO2和CO2      D.Na+和OH-

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下表是元素周期表的一部分,下列說法中,不正確的是( 。
6  C
7  N
8  O
9  F
13  Al
14  Si
15  P
16  S
17  Cl

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完型填空(共20小題;每小題1分,滿分20分)
閱讀下面短文,掌握其大意,然后從四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng)。
"Hey, Tahlia! How's the model?"
I had just taken a bite of my hot dog __21__ I heard a familiar voice yelling at me from across the crowded school yard. I saw a group of popular girls who were all __22__.
"What kind of __23_ are you going to do? An ad for a Frankenstein movie?" More laughter. My stomach twisted into a tight knot. How could they humiliate (羞辱) me like this, __24__ the entire school? As I walked into the cafeteria, I __25__ the dark scars on my right hand.
At 9 months old, I knocked over a tea pot and dumped boiling water allover my hands and stomach. My parents __26__ me to the hospital, but I had to have skin graft (移植) operation. I was in so much pain! But what __27__ me most were the cruel things people said about how I looked, __28__ that day at lunch.
The girls were being supermean to me because they'd heard I was considering doing some modeling. A close friend had suggested that I shouldn't let my scars limit me and that I might __29__ a good model.
But after that __30__ at school, I was sure I'd made a huge mistake. Upon arriving home, I covered the mirror with a blanket, fell on my bed and sobbed.
The next day, I __31__ myself to go to school. At lunch my best friend Jesse tried to encourage me: "You can't __32_ forever, Tahlia. So what if you have a few scars? Just go outside and show them that you're just as good as they are." Although I knew he was right, I couldn’t __33__ standing up for myself like that.
However, that night as I sat on the bed, my friend's words replayed in my mind. I'm __34__ hiding from myself, I thought. How stupid! Slowly, I stood up, walked over to the __35__, and tossed the blanket aside. There, in the mirror I saw a slim, dark-haired, blue-eyed girl, looking just fine, __36__ with a few scars.
The next day I wore a comfortable T-shirt to school. What's more, I had lunch outside the cafeteria, __37__ beside those mean girls. They were shocked that I should dare to walk into their territory. I felt __38_ too—free and happy.
Sometimes people still look at me strangely. They __39_ and stare, but I don't let it get to me. I have applied to several modeling companies, and at least one company is considering me for jobs. Maybe I'll never __40_ posing on the runway, but I do know one thing: I'm done.
【小題1】
A.a(chǎn)s B.when C.while D.before
【小題2】
A.a(chǎn)pplauding B.cheering C.laughing D.quarreling
【小題3】
A.modeling B.writing C.drilling D.a(chǎn)cting
【小題4】
A.in spite of B.in view of C.in terms of D.in front of
【小題5】
A.looked into B.searched for C.wondered aboutD.glanced at
【小題6】
A.presented B.sent C.rushedD.handed
【小題7】
A.hurtB.beat C.disappointed D.puzzled
【小題8】
A.for B.like C.on D.a(chǎn)fter
【小題9】
A.impressB.make C.consult D.defeat
【小題10】
A.effect B.phenomenon C.challenge D.scene
【小題11】
A.forced B.expected C.reminded D.preferred
【小題12】
A.a(chǎn)pologize B.beg C.hide D.complain
【小題13】
A.consider B.imagine C.a(chǎn)ppreciate D.resist
【小題14】
A.hardly B.ever C.even D.gradually
【小題15】
A.blanket B.bed C.chair D.mirror
【小題16】
A.while B.though C.but D.because
【小題17】
A.right B.still C.therefore D.a(chǎn)nyhow
【小題18】
A.sensitive B.uncomfortable C.different D.tense
【小題19】
A.compare B.a(chǎn)ssociate C.wave D.whisper
【小題20】
A.give up B.end up C.put up D.set up

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下表列出了1~18號元素的原子序數(shù)和元素符號.請回答下列問題:
原子序數(shù) 1 2 3 4 5 6 7 8 9
元素符號 H He Li Be B C N O F
原子序數(shù) 10 11 12 13 14 15 16 17 18
元素符號 Ne Na Mg Al Si P S Cl Ar
(1)某元素的原子結(jié)構(gòu)示意圖為,它在化學(xué)反應(yīng)中一般易
得到
得到
電子(選填“得到”或“失去”).
(2)某粒子的結(jié)構(gòu)示意圖為,當(dāng)x-y=8時(shí),該粒子為
陰離子
陰離子
(選填“原子”、“陽離子”或“陰離子”),該粒子的符號為
S2-
S2-

(3)具有相同原子數(shù)和電子數(shù)的分子或離子叫等電子體,等電子體具有相似的結(jié)構(gòu)和性質(zhì).下列各組粒子中屬于等電子體的是
BD
BD
(填字母序號).
A.NO和O2 B.CO和N2 C.SO2和CO2 D.P
O
3-
4
S
O
2-
4

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