英语是联合国的工作语言之一，也是事实上的国际交流语言。威廉希尔app 为大家推荐了高三英语人教版单元课时练习，请大家仔细阅读，希望你喜欢。

I Useful expressions

1. 各种各样的

2. 大学毕业生

3. 以…速度

4. 得出结论

5. 跟踪，保持对…记录

6. 记下                7. 占…面积

8. 突出                 9. 被诊断出

10. 继续做

11. 连续六年

12. 首先

13. 无论是否              14. 创造记录

15. 有助于                 16. 想出注意

17. 向…申请得到

18. 突然…              19. 朝…去

20. 对…熟悉

21. 集中于

22. 活到                  23. 有…长

24. 努力做                    25. 中标

26. 尽管

II Multiple choice

1. Your natural hair color begins to      as you grow older, and eventually it goes gray.

A. disappear     B. dim     C. fall     D. fade

2. Mary often does some translation work to earn some extra money, which        half of her income

A. accounts for            B. counts on

C. makes for              D. consist in

3. We’re expecting Jerry because he’s our     visitor who comes for holiday every summer.

A. familiar    B. similar   C. popular   D. regular

4. The weather turned out to be very good,        , to our delight, was more than we could expect.

A. as    B. that      C. which     D. it

5. In celebration of Hong Kong’s return to China, the biggest Jiaozi was made,        an incredible 480 kilograms!

A. weighed                B. weighing

C. which weigh             D. to be weighed

6. The number of people who traveled abroad in 2006 is three times      that in 2001.

A. as many as     B. as much as

C. as large as      D. as small as

7. Christopher Columbus reached      is now America, but he thought he reached India.

A. where    B. what     C. which     D. that

8. I won’t call you, ________ something unexpected happens.

A. unless  B. if   C. because    D. while

9. Most birds find it safe to sleep in the trees, but ________ they have eggs or young chicks, they don’t use a nest.

A. why  B. how    C. unless       D. where

10—I’m sorry to have kept you waiting.

—____, Bill.

A. You’re welcome B. Go ahead

C. Don’t mention it    D. No problem

11. He hasn’t slept at all for three days.        he looks tired out.

A. There is no need      B. There is no point

C. No wonder          D. It is no way

12.  A small car is big enough for a family of three _ ___ you need more space for baggage.

A. once  B. because   C. if   D. unless

13. Don’t promise anything ______ you are one hundred percent sure.

A. whether     B. after     C. how     D. unless

14. _______, his idea was accepted by all the people at the meeting.

A. Strange as might it sound

B. As it might sound strange

C. As strange it might sound

D. Strange as it might sound

15. All people, __ they are old or young, rich or poor, rich or poor, have been trying their best to help those in need since the disaster.

A. even if  B. whether  C. no matter   D. however

16.       , he talks a lot about his favorite singers after class.

A. A quiet student as he may be

B. Quiet student as he may be

C. Be a quiet student as he may

D. Quiet a he may be a student

17.       , Carolina couldn’t get the door open.

A. Might she as try     B. As she might try

C. She might as try     D. Try as she might

18. We’ll have a picnic in the park this Sunday _____ it rains or it’s very cold.

A. since     B. if       C. unless      D. until

19. The boring meeting       nearly three hours, which bored the captive audience to death.

A. continued   B. kept   C. went on   D. lasted

20. Cultural exchange     the understanding of each other.

A. makes for             B. makes out

C. focuses on            D. contributes

21. The first edition of the Guinness Book of the World was published in 1955,         it has been a best-seller.

A. when               B. during which

C. since then            D. since when