Unit 1 Great scientists reading课时作业

一. 单项选择

1. - Is there anything else to discuss?

-_____________. I guess.

A. Not at all B. No, that's all C. Yes, I'm sure D. Yes, of course

2. The development of industry has been_______ gradual process throughout _______ human existence, from stone tools to modern technology.

A. 不填, the B. the; a C. a; 不填 D. a; a

3. No matter how bright a talker you are, there are times when it's better ______ silent.

A. remain B. be remaining C. having remained D. to remain

4. I made a promise to myself______this year, my first year in high school, would be different.

A. whether B. what C. that D. how

5. Studying Wendy's menu, I found that many of the items are similar to______ of McDonald's.

A. those B. ones C. any D. all

6. all the animals I've ever had, these two dogs arc the most sensitive to the spoken word.

A. From B. Of C. For D. With

7. Your as a student will be excellent if you develop a habit of reflecting on how you learn.

A. operation B. growth C. performance D. character

8. I think Tom, as the head of a big department, should either study regularly or______ his job.

A. quits B. to quit C. quitting D. quit

9. We live in an age more information is available with greater ease than ever before.

A. why B. when C. to whom D. on which

10. The research lacks evidence, and therefore, its conclusions are doubtful.

A. solid B. fierce C. severe D. potential

11."It's such a nice place," Mother said as she sat at the table________ for customs.

A. to be reserved B. having reserved C. reserving D. reserved

12. According to scientists, our mental abilities begin to______ from the age of 27 after reaching the highest level at 22.

A. differ B. shrink C. fail D. decline

13. Peter had intended to take a job in business, but _____ that plan after the unpleasant experience in Canada in 2010.

A. had abandoned B. abandoned C. abandon D. will abandon

14. Brown said he was by no means annoyed; _____ he was glad to be able to make himself clearly understood.

A. all in all B. for one thing C. on the contrary D. by the way

15. Armed with the information you have gathered, you can_____ preparing your business plan.

A. set out B. set about C. set off D. set up

16. ------Tom sat up late recently.