28. Though bought several years ago, the computer is still in good ____.

A. situation　 B. condition　 C. standard　　 D. position

27. I ____ in London for many years, but I’ve never regretted my final decision to move back to China.

A. lived　　 B. was living 　　C. have lived　　 D. had lived

26. The man in black was about to set fire to the house ____ the police came.

A. while　 B. after　　 C. before　　 D. when　

25. I walked out of the cinema, _____ I’d never come back to this hell.

A. determining　 B. determined　　 C. to determine　 D. determine

24. Three hundred firemen raced to the hotel after a smoke detector(检测器)_____ the alarm soon after midnight.

A. set out　 B. set off　　 C. give away　　 D. give off

23. Can you _____ the point? If you can, please explain it to me.

A. make sense of　　　　 B. make a difference to　

C. make a remark on　　　 D. have an effect on

22. With the boy _____ the way, we had no trouble _____ the way to lead to Zhongshan Park.

A. leading; finding　 B. to lead; found　 C. led; finding　 D. leading; to find

第一节：单项填空(共15小题；每小题1分；满分15分)

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

21. Most Irish people go to ____ church every Sunday and the church plays ____ important part in people’s lives.

A. the; the　　 B. a; an　　 C. the; an　　 D. /; an　　　　　 　　　　

24.(本题满分8分)

在正三角形ABC中，E、F、P分别是AB、AC、BC边上的点，满足AE:EB＝CF:FA＝CP:PB＝1:2(如图1)。将△AEF沿EF折起到的位置，使二面角A₁－EF－B成直二面角，连结A₁B、A₁P(如图2)

(Ⅰ)求证：A₁E⊥平面BEP；

(Ⅱ)求二面角A₁－BP－E的大小。