We must act for a better tomorrow as soon as possible. SECTION B Directions: Answer the questions——青夏教育精英家教网—

We must act for a better tomorrow as soon as possible. SECTION B Directions: Answer the questions according to the information given in the passage and the required words limit. It has been the scientific mystery for centuries---until now, that is. Scientists have solved the problem of whether the chicken or the egg came first. The answer, they say, is the chicken. Researchers found that the fomation of egg shells relies on a protein found only inside a chicken . Therefore, an egg can exist only if it has been inside a chicken. The protein, called OC-17, acts to speed up the development of the shell. This hard shell is essential to house the yolk and its protective liquid while the unborn chicken develops inside. Scientists from Sheffield and Warwick universities used a supper computer to examine the formation of an egg. The computer revealed that OC-17 is crucial in starting the early stages of the creation of a shell. The protein changes calcium carbonate into calcite crystalsand it is calcite crystals that make up the shell. Calcite crystals are found in many bones and shells but chickens form them faster than any other species---creating six grams of shell every 24 hours. Dr Colin Freeman from Sheffield university said, “It had long been suspected that the egg came first but now we have the scientific evidence that shows that in fact the chicken came first. The protein had been identified before and it was linked to egg formation but by examining it closely we have been able to see how it controls the process. Professor John harding, from the same university, said the discovery could have other uses. “Understanding how chickens make egg shells is fascinating in itself but can also give directions towards designing new materials and processes, he said. “Nature has found creative solutions that work for all kinds of problems in materials science and technology----we can learn a lot from them. 81.What is OC-17 mentioned in the passage? (No more than 12 words) 【查看更多】

The telephone rang in the police station at Richmond， California， USA. “Police station？ A train for Santa FE collide(碰撞)with a(n)　31　at the McDonald Street Crossing. Please go there at once， with an ambulance too. A man is badly injured，” said a(n)　32　voice of a young woman.

“Just a minute， we’ll come　33　. Please stay there and wait，” answered the policeman.

Within a minute， a police car and an ambulance　34　. Soon they got to the　35　， but only to　36　everything was fine. No collision， no　37　man.

“What a dirty trick！” said the policeman　38　. “We must find out that mischievous(恶作剧的)　39　and. . . ”

They had not been able to say anything about a punishment　40　they heard the whistle of a train： the train was nearing them quickly. All　41　a sudden， a truck appeared. It came fast towards them， too. 　42　it was passing the crossing， it suddenly refused to move on. Right then and there， before the eyes of all the people present， the train collided with the truck heavily and struck it　43　meters away.

When Randolph Bruce， the driver was　44　out of the damaged truck， he was　45　hurt just　46　the young woman had foretold on the phone. As he was taken to the　47　in time， he was saved at last.

Later the policemen did　48　they could to find the woman who had telephoned them， but　49　.

It is　50　that a prophecy(预言)should coincide(巧合)with the fact so exactly.

31. A. ambulance　　　　B. truck　　　　C. car　　　　　D. bus

32. A. anxious B. sweet C. gentle D. low

33. A. fast B. ahead C. soon D. later

34. A. went by B. set off C. got there D. came on

35. A. telephone B. street C. station D. crossing

36. A. feel B. find C. have D. tell

37. A. injured B. trapped C. frightened D. killed

38. A. happily B. excitedly C. angrily D. disappointedly

39. A. man B. policeman C. woman D. boy

40. A. until B. since C. while D. when

41. A. at B. of C. by D. for

42. A. When B. Where C. That D. Which

43. A. dozen B. dozens C. dozen of D. dozens of

44. A. raised B. helped C. pushed D. forced

45. A. slightly B. clearly C. hardly D. badly

46. A. as B. so C. before D. for

47. A. police station B. market C. hospital D. sidewalk

48. A. that B. which C. however D. whatever

49. A. delayed B. worked C. stopped D. failed

50. A. surprised B. surprising C. satisfied D. satisfying

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阅读理解

　　Language is a way to communicate with each other. We started to learn language when we were born. However, people are used to speaking their native languages, so immigrants(移民)are having many problems between the first generation and the second generation because they don't have the same native language. Also, the second generation is losing their identity. Especially in America, there are many immigrants that came from different countries to succeed in the States. Because they suffer in lots of areas such as getting a job and trying to speak English, they want their children to speak English, not only at school, but also at home in order to be more successful. Because of this situation, their children are losing their ethnic(民族的)identity and, even more, they are ignoring their parents whose English is not very good.

　　For example, my aunt, who has been living in Chicago for fifteen years, has three children and they were all born in the States. The eighteen-year-old daughter speaks English as a native language and she speaks Korean very well too. She has no problems talking with her parents, but she still doesn't under stand Korean jokes, and there are sometimes misunderstandings. The second daughter is fourteen years old, and she doesn't want to speak Korean. My aunt often gets upset with her because she is very Americanized and they cannot understand each other. Even when my aunt punishes her, this daughter does not understand what my aunt is talking about. I felt sympathy(同情)for my aunt whenever my fourteen-year-old cousin said,“Mom, what is your problem?”The third child is a twelve-year-old son.

　　He speaks English to his parents and my aunt speaks Korean to him as she does to the second daughter.

　　He also has a problem communicating with his parents. My aunt is trying to teach him to speak both languages very well, but it is very hard for him because he speaks English all day and does not understand why he should learn to speak Korean.

　　I think most immigrants are trying to preserve(保持)their native language in their new country, but this doesn't help very much in getting a good job. My aunt didn't teach Korean to her children in order to help them succeed in the US; she did so, hopefully, to help them establish a Korean identity. Though the second generation is born in the new country, they often get confused about their identity because they look different from others, and also, if they visit their parents' country, they will probably feel different from other people there too. They could even feel it just strolling around the street because they wore different clothes and walked differently.

　　We must realize that languages is important and valuable for many reasons. Immigrants should make an effort not to be ignored by their children and to make their children understand their heritages(文化遗产) by teaching them the parents' native language. This is very important, not only for the harmony of the family, but also in helping the second generation establish their identity.

1．This passage is mainly about _____.

[　　]

A．how to learn a second language

B．how to become American citizens

C．language and its effect on the identity of immigrants

D．schools attended by immigrants to the US

2．Which of these statements is NOT true according to the first paragraph?

[　　]

A．Second generation immigrants are usually eager to learn their parents' native language.

B．It is often hard for first and second generation family members to communicate with each other.

C．Foreigners in America want their children to speak English so that they can achieve great success.

D．Sometimes second generation immigrant children ignore their parents because of language differences.

3．Which is NOT a reason that the 14-year-old daughter has problems with her mother?

[　　]

A．She doesn't want to speak Korean.

B．she doesn't love her mother.

C．She is very Americanized.

D．She does not understand her mother when she gets punished.

4．The author's aunt tries to teach her children to speak Korean to help them _____.

[　　]

A．succeed in the US

B．find a good job

C．establish a Korean identity

D．improve their Korean language skills

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The telephone rang in the police station at Richmond, California, USA. “Police station？ A train for Santa FE collide（碰撞）with a（n）　31　at the McDonald Street Crossing. Please go there at once, with an ambulance too. A man is badly injured，” said a（n）　32　voice of a young woman.

“Just a minute, we’ll come　33　. Please stay there and wait，” answered the policeman.

Within a minute, a police car and an ambulance　34　. Soon they got to the　35　, but only to　36　everything was fine. No collision, no　37　man.

“What a dirty trick！” said the policeman　38　. “We must find out that mischievous（恶作剧的）　39　and.”

They had not been able to say anything about a punishment　40　they heard the whistle of a train: the train was nearing them quickly. All　41　a sudden, a truck appeared. It came fast towards them, too. 　42　it was passing the crossing, it suddenly refused to move on. Right then and there, before the eyes of all the people present, the train collided with the truck heavily and struck it　43　meters away.

When Randolph Bruce, the driver was　44　out of the damaged truck, he was　45　hurt just　46　the young woman had foretold on the phone. As he was taken to the　47　in time, he was saved at last.

Later the policemen did　48　they could to find the woman who had telephoned them, but　49　.

It is　50　that a prophecy（预言）should coincide（巧合）with the fact so exactly.

31. A. ambulance	B. truck	C. car	D. bus
32. A. anxious	B. sweet	C. gentle	D. low
33. A. fast	B. ahead	C. soon	D. later
34. A. went by	B. set off	C. got there	D. came on
35. A. telephone	B. street	C. station	D. crossing
36. A. feel	B. find	C. have	D. tell
37. A. injured	B. trapped	C. frightened	D. killed
38. A. happily	B. excitedly	C. angrily	D. disappointedly
39. A. man	B. policeman	C. woman	D. boy
40. A. until	B. since	C. while	D. when
41. A. at	B. of	C. by	D. for
42. A. When	B. Where	C. That	D. Which
43. A. dozen	B. dozens	C. dozen of	D. dozens of
44. A. raised	B. helped	C. pushed	D. forced
45. A. slightly	B. clearly	C. hardly	D. badly
46. A. as	B. so	C. before	D. for
47. A. police station	B. market	C. hospital	D. sidewalk
48. A. that	B. which	C. however	D. whatever
49. A. delayed	B. worked	C. stopped	D. failed
50. A. surprised	B. surprising	C. satisfied	D. satisfying