27. The gravity on the earth is much ______ that on the moon, do you know why?

A. as strong as　　 B. strong than　　　 C. so strong than　 　　 D. stronger than

26. _____ by a black hole, Li Yanping was so frightened at first, but he calmed down later and

　 tried his best to escape.

　 A. Caught　　　 　　　　　　 B. Catching　　　　　 C. To catch　　　 　　　　　　　 D. Catch

25. Mary has______ speaking dialects, so it is not surprising to see her communicate with the

　 people from different parts of this country easily.

　 A. a gift for　　　　　　 B. trouble in　　　　　　　　　 C. effects on　　　 　　　 D. nothing to do with

24. We don’t have to ________ every word that we don’t know when reading.

A. look up　　　　　　　　　　 B. refer to　　　　　　　　　　 C. look for　　　　　　　　　　 D. look into

23. Many a man _________ come to offer us help.

A. have　　　　　　　　 B. is 　　　　　　　　　　　　　 C. are　　　　　　　　　　　　　 D. has

22. We’ll discuss the problem ________ lunch time.

A. at 　　　　　　　　　　　　　 B. over　　　　　　　　　 　 　 C. of 　　　　　　　　　　　　　 D. when

21. It was _______ he does _______ makes his students enthusiastic about school. (原创)

　 　　 A. that; that　 　　　 B. what; what　　　　 C. that; what　　　 D. what; that

20. The number of people who speak English ______ large, and a large number of people _______ native speakers.

　 A. are ; are　　 　　　　　　　 B. is ; are　 　　　　 　　　 C. is ;is　 　　　　　　 D. are ;is

19. Only when he failed the exam ________ that he didn’t work hard. (原创)

A. he regretted　　 B. did he regret　　 　 C. had he regretted 　　　　　　 D. does he regret

18. I knew he failed in the final exam the moment I _______ him crying alone in the classroom.(原创)

A. at the sight of　 B. caught sight of　 C. in sight of　 D. lost sight of