unit20 Lesson 3课时训练2 北师大版选修7.docVIP

Lessons3检测题 第二部分：英语知识运用（共两节，满分45分） 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. —Could you explain it to me a second time? I’m afraid I can’t follow you. —_____ A. Is that clear? B. That’s what I mean. C. Maybe I can show you with this chart. D. You are very slow indeed. 22. By the year 2020 scientists _____ a lot of research on AIDS. A. had done B. do C. are doing D. will have done 23. I’ll help you with your English as soon as I _____ my homework. A. finish B. will finish C. would finish D. finished 24. —Why are you standing here? —I’m waiting for Shirley. She will be back _____. A. gradually B. originally C. shortly D. abruptly 25. they _____ a large sum of money to the poor students in the rural area. A. gave off B. gave up C. gave back D. gave away 26. _____ how hard he tried, he couldn’t get her to change her mind. A. Providing B. No matter C. As long as D. However 27. the value of the house was _____ at $200,000, $30,000 less than its selling price. A. associated B. assessed C. assumed D. assisted 28. It was an unpopular policy and caused a number of _____ within the party. A. contacts B. contrasts C. conflicts D. connections 29. the damage of the world’s environment was a loss for mankind that no amount of money could _____. A. make out B. make for C. make up for D. make off 30. In the course of centuries, the wind has _____ the rocks away. A. worn B. washed C. run D. taken 31. All these worries made _____ impossible for her to concentrate on her study. A. that B. it C. this D. which 32. the speaker always talked about difficult things. His ideas hardly _____ to the audience. A. got over B. got through C. got across D. got down 33. —Could you tell me when the new edition of this book is _____? —Sorry, I don’t know. Maybe in 2010. A. coming out B. carrying out C. figuring out