3、已知平面,为垂足，为斜线在平面内的射影，，，，则和平面所成的角为C A．　 B．　　　 C．　 D．

2、从甲、乙等名同学中挑选名参加某项公益活动，要求甲、乙中至少有人参加，则不同的挑选方法共有C 　　A.140种　　　 B.112种　　 C.168种　　 D.70种

1、已知直线、和平面，则的一个必要不充分的条件是 D

A.　　 B.　　 C.　　 D.、与成等角

25.(09江苏) Nine in ten parents said there were significant differences in their approach to educating their children compared with __ of their parents.

A. those　　　　　　　 B. one　　　　　　 C. both　　　　　　 D. that

[答案]D

22.(09重庆) Over the past 20 years, the Internet helped change our world in　　　　 way or another for the better.

A. any　　B. one　 C. every　 　　D. either

[答案]B

23.(09全国2卷) Charles was alone at home, with 　　　　looking after him.

A. someone　 B. anyone　　 C. not one　 D. no one

[答案]D

(09全国2 )24。The CDs are on sale! Buy one and you get 　　　　　completely free.

A. other　　　 B. others　　　 C. one　　 D. ones

[答案]C

7．(09浙江)－I’ve read another book this week.

－Well, maybe _____ is not how much you read but what you read that counts.

A.　　　 this　　　　　　　　 B. that　　　　　　　　　　　　　 C. there　　　　　　　　　　　　 D. it

[答案]D

6.(09四川) I like this house with a beautiful garden in front, but I don’t have enough money to buy__________.

A. one　　 B. it　　 C. this　　 D. that

[答案]B。 意思是：我喜欢这个前面有一个美丽花园的房子，但是我没有足够多的钱去把它买下来。第一句话中的this house表明在该语境中是特指的用法，所以答案为it，表示特指。该题容易误选one，要注意的是one表示泛指。

5.(09上海) －Wow! You’ve got so many clothes.

－But _____ of them are in fashion now .

A. all　　　　　　 B. both　　　　　　 C. neither　　　　 　D. none

[答案]D

4.(09陕西) Jane was asked a lot of questions, but she didn’t answer 　　　of them.

A. other　　　 B. any　　 C. none　　　 D. some

[答案]B 考查不定代词。所填词与not构成全部否定，四个选项中只有any与not可以构成not any，等于none，表全部否定，故选B。