第一节单项填空(共10小题.每小题1.5分.满分15分)21. I don’t feel like going out. Why don’t we just stay at home and wat——青夏教育精英家教网—

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第一节单项填空(共10小题，每小题1.5分，满分15分)

21. I don’t feel like going out. Why don’t we just stay at home and watch TV instead?

You promised to take me out for dinner and to the theatre on my birthday.

A. Great!　　　　 B. Why me?　　　　　 C. Come on!　　　　　　 D. Not at all.

试题详情

第二节　听下面5段对话或独白。每段对话或独白后有几个小题，选出最佳选项。每段对话或独白读两遍。

听下面一段材料，回答第6至8题。

6. What are the two speakers talking about?

A. The machine.　　　　　　　　　 B. Newspapers.　　　　　　　　　　 C. A job in the newspaper.

7. What’s the woman really doing?

A. Encouraging the man.

B. Making fun of the man.

C. Lying to the man.

8. What would the man probably do?

A. Think it over.

B. Try to get the job.

C. Not take the job.

听下面一段材料，回答第9至11题。

9. Why will the man go to Birmingham?

A. He will pay a visit there.

B. He will call on his teacher there.

C. He will work there.

10. Where did the man work before?

A. In a bank.　　　　　　　　　　　 B. In a school.　　　　　　　　　　 C. In a factory.

11. Why does the man want to change his job?

A. The pay wasn’t good.

B. The work was too boring.

C. He doesn’t want to work in the same place too long.

听下面一段材料，回答第12至14题。

12. Where do the two speakers work?

A. In a plant in Chicago.

B. In a large company.

C. In an office in Atlanta.

13. Who has risen to a high position?

A. Jim.　　 B. Marta.　　　　 C. Both Jim and Marta.

14. Why does the woman want to go on with her work in the office?

A. She is fond of writing notices.

B. She is still new in her position.

C. She hopes to keep in close touch with her superiors.

听下面一段材料，回答第15至17题。

15. What’s the probable relationship between the speakers?

A. Schoolmates.　　　　　　　 B. Workmates.　　　　　　　 C. Strangers.

16. Why is Jeanie here earlier?

A. To meet her friend.

B. To have a lesson.

C.To go over her lesson.

17. How is Jack feeling before the test?

A. He is calm.

B. He worries about it.

C. He hopes to get an A.

听下面一段材料，回答第18至20题。

18. In what way are men different from animals?

A. Men can understand things quickly.

B. Men can learn.

C. Men can use language and think.

19. Which of the following is False according to the passage?

A. Apes can speak like man.

B. Apes can understand things.

C. Apes can learn words.

20. What do scientists know now?

A. How children learn to speak.

B. Why apes can learn a few words.

C. Man’s brain helps him learn to speak.

试题详情

第一节　听下面5段对话。每段对话后有一个小题，选出最佳选项。每段对话仅读一遍。

1. What’s the most probable relationship between the speakers?

A. Neighbors.　　　　　　　　　　　 B. Friends.　　　　　　　　　　　　　 C. Strangers.

2. What does the woman mean?

A. No one can open the door.　　　B. Mike can’t open the door.

C. Only Mike can open the door.

3. What is the meaning of the last sentence?

A. If one begins to play volleyball, one will like it at once.

B. If one begins to play basketball, one will like it at once.

C. If one begins to play basketball, one will find it boring.

4. What can we know about Judy?

A. She came to the party.

B. She planned to come but changed her mind later.

C. She hasn’t appeared yet.

5. What does the woman say about her job?

A. She likes her job.

B. She has just changed jobs.

C. She has just taken a new job.

试题详情

21．(13分)如图是建筑工地常用的一种“深穴打夯机”，电动机带动两个滚轮匀速转动将夯杆从深坑提上来，当夯杆底端刚到达坑口时，两个滚轮彼此分开，将夯杆释放，夯杆只在重力作用下运动，落回深坑，夯实坑底，且不反弹。然后两个滚轮再次压紧，夯杆被提到坑口，如此周而复始。已知两个滚轮边缘的线速度恒为v=4m/s，滚轮对夯杆的正压力F_N=2×10⁴N，滚轮与夯杆间的动摩擦因数μ　 =0.3，夯杆质量m=1×10³kg，坑深h=6.4m，假定在打夯的过程中坑的深度变化不大可以忽略，取g=10m/s²。求：