Imagine when you are sailing an ocean for the first time, you see a big fish swimming near your ship. You might be scared, and worried about whether it will turn over your ship for a meal. In fact, it is not a fish at all, but a gentle giant whale.

Whales are not fishes but mammals (哺乳动物). Their body temperature stays the same, and does not change with the temperature of their environment. They breathe air, so they have to come out of the water to get oxygen. Thus, they cannot afford to fall into a sleeping state for too long, since they need to be awake in order to breathe. It is thought that only half of their brains sleep at a time, so that whales are never completely asleep. Females give birth to the young. They have hair. Although they are not covered in hair or fur like many mammals, whales have some bristles (胡子), usually on their heads.

Whales are highly social animals with complex languages and intelligence. They communicate with each other using romantic sounds, called “whale songs”. Being so large and powerful, these sounds are also loud.

Whales are endangered as a result of whaling (捕鲸) from the eleventh century to the twentieth. It has attracted the attention of environmentalists and some measures (措施) have been taken to protect whales.

49. How many aspects show that whales are mammals?

A. One.           B. Two.         C. Three.         D. Four.

50. We can infer from the second paragraph that ____.

A. whales can breathe in the water

B. if a whale sleeps too long, it will get drowned

C. in order to breathe, whales never sleep

D. whales give birth to the young on the land

51. How do whales communicate with each other?

A. By body language.             B. By speaking languages.

C. By making song-like sounds.     D. By giving off a smell.

52. Which of the following is TRUE according to the passage?

A. Whales are cold-blooded mammals like fishes.

B. Whales are hunted for food by people.

C. Whales are very harmful to human beings.

D. Whales are in danger because of being killed by people.

Years ago people could hardly accept the ideas of a woman's being a doctor.In order to get into medical school in 1847，Elizabeth Blackwell was asked to keep it a secret that she was a woman.This was contrary to her beliefs，and she refused to do it.After entering medical school，Elizabeth often had to summon(鼓起) all her courage to free the unkindness of teachers and classmates.By her great efforts，she was able to complete her studies.Many people came to her graduation just to have a look at a woman doctor.Doctor Blackwell soon found that most people were not as ready as to go to a woman doctor.She had to struggle to make a living.Then came the great day when she was offered a job as a doctor in a hospital.She did so well that she was asked to organize a new hospital and medical college.The United States can now be proud of thousands of women doctors.

45．How do you think Elizabeth was treated in the medical school?

A．Kindly.        B．Unfairly.　  C．Normally.　       D．Cruelly.

46．Many people came to see Elizabeth when she graduated ______.

A．because they wanted to congratulate her on being a doctor

B．because they didn't believe she would be famous in the future

C．because they wanted to find out the secret of her success

D．because they weren't sure that she could manage to finish her schooling

47．The underlined word “contrary” most probably means______.

A. against     B. familiar      C.wrong     D.similiar

48. When she was at the medical school，Blackwell ______.

A．had to pretend to be a boy student in class

B．was discouraged by the others' critical looks

C．felt sorry that she was a woman

D．made great efforts to do well in her lessons

       A large number of women in Western European countries wish that they were born men. The number is said as high as 60% in West Germany.

       “Women often wish that they had the same chance as men have, and believe it is still men’s world,” said Dr James Holden, one of the scientists who did the study.

Anne Harper has a very good job for an international oil company. She also believes in “Women’ s Liberation(解放)”.

41. What can we learn from the first paragraph?

A. 60% Western European women wish that they were born men.  

B. Most women in Western European countries wish that their babies were all boys.

C. 60% women in West Germany wish that they were born men.         

D. 60% Western European women who wish that they were born men are from West Germany.

42. “It is still men’s world.” means “______.”

A. There’re more men than women in the world

B. There’re more men scientists or engineers than women scientists or engineers in the world

C. Women cannot live without men

D. Women have not been given the same chance as men

43. Anne Harper considers that women should ______.

A. be really liberated                B. live a better life than men

C. be well paid                 D. get better jobs than men

44. Anne Harper doesn’t wish that she were a man because she ______.

A. has got a very good job      

B. believes in “Women’s Liberation”

C. does the work that a man can’t do  

D. isn’t looked down upon by anyone

Three years ago, I had a job in a retail store (零售店). I    21    to talk to everybody and know what was going on in their    22   . I remember a girl who started    23    there a few months after me. We seldom talked but we always    24    each other and smiled.

She always smiled in a really happy way    25    one day when we got to work in the    26    department. She smiled as if she was the    27    girl in the world. I went up to her and asked, “What’s wrong with you?” She answered, “Why?” I said, “I could feel you’re very    28   , but you’re always trying to    29    it.”

Her mouth just dropped as if I had    30    her deepest secret, so we started talking. She told me    31    she was feeling unhappy and why she was trying to    32    that nothing was wrong. Time went by and we became good friends. She’d always tell me I had   33    her life in so many ways.

Today that girl is one of my best   34   . I really don’t know what I would do    35    her. She has been there for me in every    36    way a friend could be.

What I’m trying to say is that you never know    37    you’re helping yourself. I helped this girl never knowing that at the same time I was helping myself by finding a    38    friend.

So the next time you see a    39    and he needs someone who will    40    to him, wait and let him say what he wants to say. You never know, you might just end up helping yourself.

21. A. managed       B. intended          C. remembered   D. liked

22. A. lives             B. jobs                C. studies           D. marriages

23. A. shopping       B. talking             C. going            D. working

24. A. assisted      B. looked at         C. realized          D. stared at

25. A. though          B. since               C. until               D. unless

26. A. similar          B. nearby          C. same             D. different

27. A. quietest         B. happiest          C. busiest          D. luckiest

28. A. sad               B. angry              C. happy           D. surprised

29. A. keep             B. stop               C. hide               D. show

30. A. caught          B. discovered       C. controlled   D. checked

31. A. when            B. how                C. why              D. what

32. A. pretend         B. become          C. make             D. admit

33. A. protected      B. recovered        C. supported       D. changed

34. A. customers     B. friends            C. neighbors       D. classmates

35. A. without         B. for                 C. upon             D. with

36. A. simple           B. possible           C. strange          D. perfect

37. A. before           B. since               C. because         D. when

38. A. truthful         B. useful             C. hopeful          D. careful

39. A. stranger        B. worker            C. passenger       D. visitor

40. A. belong          B. refer               C. listen             D. turn

 We have ______ the get-together until next weekend when we won’t be so busy.

    A. set off     B. put off               C. take off           D. set up

 I have always regretted ______ harder at school.

    A. not to study                           B. to not study

    C. having not studied                     D. not having studied

 Your attention should be focused ______ your homework rather than TV programs.

    A. on              B. into              C. to               D. for

 Loving your children doesn’t mean ______ them whatever they want.

    A. give                      B. giving                        C. to give           D. to giving

— Jenny, let’s go to the party tonight.

— ______ I have a lot of homework to do.

　 A. Good idea.　　　　　　 B. Why not?　　　　　　　　　 C. I think so.　　　 　　 D. I’m sorry.

 Dr. Smith, together with his wife and daughters, _____ visit Beijing this summer.

    A. is going to                           B. are going to    

    C. was going to                         D. were going to