Unit4同步评估.doc

Book 3 Unit 4 Astronomy: the science of the stars 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 I have another cup of coffee, Daddy? —_____ It will be hard for you to go to sleep tonight if you do. A. Better not. B. Why not? C. What for? D. As you wish. 22. Zhang Heng, one of _____ best-known Chinese astronomers, showed a strong interest in _____ astronomy as a child. A. the; the B. the; 不填 C. 不填; the D. 不填; 不填 23. Without gravity, we _____ walk on the ground as freely as we do now. A. couldn’t B. mustn’t C. shan’t D. needn’t 24. Simon was _____ why many of his friends didn’t turn up at his birthday party. A. limited B. crashed C. spotted D. puzzled 25. Though I was tired out that evening, I _____ from falling asleep by the great pain in my knee. A. was prevented B. had prevented C. has prevented D. am prevented 26. See the model ship _____ in the pool? That’s what my father made for me last weekend. A. float B. floating C. floated D. to float 27. Jack was in low spirits those days and his friends did all they could _____ him up. A. cheer B. cheering C. cheered D. to cheer 28. There is a peaceful and calm _____ in the country, quite different from that of a big city. A. climate B. atmosphere C. system D. situation 29. It was almost midnight when a fire _____ in the neighborhood. A. blocked out B. turned out C. broke out D. died out 30. _____ life exists on any other planet in the solar system still remains a question. A. Why B. Whether C. How D. Where 31. Most of the evidence was destroyed in the fire. _____, it would be almost impossible to prove Jim guilty. A. Anyhow B. However C. Besides D. Thus 32. _____ you have worked out the first problem, you may go on to work on the second. A. Even if B. Unless C. Now that D. Though 33. —May I have a lo