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4.點(diǎn)到平面的距離、直線和平面的距離以及面面距離的求法:

找出垂線段,在一個(gè)平面內(nèi)求,或用等積法、向量法求,

試題詳情

3.直線和平面垂直的性質(zhì)定理: 垂直于同一個(gè)平面的兩條直線平行.

試題詳情

2.直線與平面垂直的判定方法:

(1)判定定理:一條直線和一個(gè)平面內(nèi)的兩條相交直線都垂直,則則線垂直;

(2)依定義,一般要用反證法;

(3)和直線的垂面平行的平面垂直于直線;

(4)面面垂直的性質(zhì).

試題詳情

1.直線和平面垂直定義:一條直線和一個(gè)平面內(nèi)的任意一條直線都垂直.記作:aα

試題詳情

4.會(huì)求斜線與平面所成的角.

試題詳情

3.通過線線垂直、線面垂直、面面垂直的轉(zhuǎn)化提高化歸轉(zhuǎn)化能力.

試題詳情

2.掌握三垂線定理及其逆定理

試題詳情

1.掌握直線與平面垂直的定義、判定定理、性質(zhì)定理,能用文字、符號(hào)、圖形規(guī)范表述.

試題詳情

第三節(jié)  書面表達(dá)(滿分20分)

假如你叫李華,請(qǐng)給筆友Mike寫一封100詞左右的電子郵件,介紹一下自己的好朋友王飛。內(nèi)容要點(diǎn)應(yīng)包括以下幾個(gè)方面:

1. 17歲男生, 中等身材

2.誠實(shí)自信、樂于助人

3.學(xué)習(xí)刻苦、成績優(yōu)秀

4.興趣廣泛、擅長足球

注意:開頭和結(jié)尾已經(jīng)給出,可以適當(dāng)增加細(xì)節(jié),以使行文連貫。

Dear Mike,

  I’m glad to receive your e-mail. Here I’d like to tell you about my best friend Wang Fei.

                                        

                                       

                                       

                                        

                                       

                                       

                                        

                                      

                                       

                                       

                                      

                                     

Such is my best friend Wang Fei, a lovely boy and an excellent student. I hope you two will become good friends. 

Yours,

Li Hua

試題詳情

第二節(jié): 短文改錯(cuò)(共10小題;每小題1分,滿分10分)

此題要求改正所給短文中的錯(cuò)誤。如無錯(cuò)誤,在該行右邊橫線上畫一個(gè)勾(√);如有錯(cuò)誤(每行只有一個(gè)錯(cuò)誤),則按下列情況改正:

此行多一詞:把多余的詞用斜線(\)劃掉,在該行右邊橫線上寫出該詞,并用斜線劃掉。

此行缺一個(gè)詞:在缺詞處加一個(gè)漏字符號(hào)(∧),在該行右邊橫線上寫出該加的詞。

此行錯(cuò)一個(gè)詞:在錯(cuò)的詞下劃一橫線,在該行右邊橫線上寫出改正后的詞。

注意:原行沒有錯(cuò)的不要改。

Although I'm 16 years old, and my father still treats          96. ____________

me as a careless children. He doesn’t value my opinions.           97. ____________

He is very strict with me and often punishes me about             98. ____________

leaving things around in the house while he did this              99. ____________

all time. I think he fails to set me an example to                100. ____________

follow. But he often says, “Doing as I say, not as I do.”          101. ____________

Even worse, he points out my past mistakes to guests,           102. ____________

making me feel hurting. I love my father, but I can’t            103. ____________

bear what he does. I have been tried many times                104. ____________

to talk with he but he never listens.                         105. ____________

試題詳情


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