The United States government wants to know what the public thinks about its findings on the safety of cloned animals. The Food and Drug Administration says meat and milk from clones of adult cattle, p 题目和参考答案——青夏教育精英家教网—

题目内容

The United States government wants to know what the public thinks about its findings on the safety of cloned animals.

The Food and Drug Administration says meat and milk from clones of adult cattle, pigs and goats are safe to eat. An F.D.A. official called them "as safe to eat as the food we eat every day." And when those clones reproduce sexually（有性繁殖）, the agency says, their offspring（后代） are safe to eat as well. But research on cloned sheep is limited. So the F.D.A. proposes that sheep clones not be used for human food.

The United States this year could become the first country to approve the sale of foods from cloned animals. First, however, the public will have ninety days to comment on three proposed documents. On December 28th the F.D.A. released a long report, called a draft risk assessment, along with two policy documents.

The agency says it must receive comments by April second. The F.D.A. seemed ready to act several years ago, but an advisory committee called for more research.

For now, the government will continue to ask producers to honor a request that they not sell foods from cloned animals.

Clones are still rare. They cost a lot and are difficult to produce.

The F.D.A. says most food from cloning is expected to come not from clones themselves, but from their sexually reproduced offspring. It says clones are expected to be used mostly as breeding animals to spread good qualities.

Public opinion studies show most Americans do not like the idea of food from cloned animals. But this research also shows the public knows little about cloning.

Cloning differs from genetic engineering. A cell taken from a so-called donor animals is grown into an embryo（胚胎）in the laboratory. Next, the embryo is placed into the uterus（子宫）of a female animal. If the process is successful, the pregnancy reaches full term and a genetic copy of the donor animal is born.

From the passage we know that .

A. foods from cloned animals are popular in America

B. cloned adult animals are safe to eat except sheep.

C. cloned animals will be easy to produce

D. most foods from cloning is expected to take place of other foods

The main purpose of the text is to .

A. tell a interesting story B. give some advice on foods

C. give a report D. compare different opinions

Who believe that foods from cloning are safe to eat?

A. Most Americans B. An advisory committee

C. Critics D. The F.D.A.

It can be inferred from the last paragraph that .

A. cloning has much in common with genetic

B. not every cell taken from a donor animal can grow into a genetic copy

C. the donor animal should be a female one

D. cloned animals grow faster than normal ones

【小题1】B

【小题2】C

【小题3】D

【小题4】B

解析:

【小题1】推理判断题。从文中第二段可推出。

【小题2】主旨大意题。本篇文章是关于克隆食物的安全问题的报道。

【小题3】事实细节题。从“The Food and Drug Administration says meat and milk from clones of adult cattle, pigs and goats are safe to eat.…”可知。

【小题4】推理判断题。从最后一段“If the process is successful, the pregnancy reaches full term and a genetic copy of the donor animal is born.”可知答案。

练习册系列答案

相关题目

I have a rule for travel: Never carry a map. I prefer to ask for directions

Foreign visitors are often puzzled in Japan because most streets there don’t have names. In Japan, people use landmarks in their directions instead of street names. For example, the Japanese will say to travelers, “Go straight down to the corner. Turn left at the big hotel and go past a fruit market. The post office is across from the bus stop.” In the countryside of the American Midwest, usually there are not many landmarks. There are no mountains, so the land is very flat. In many places there are no towns or buildings within miles. Instead of landmarks, people will tell you directions and distances. In Kansas or Iowa, for example, people will say, “Go north two miles. Turn east, and then go another mile.”

People in Los Angeles, California, have no idea of distance on the map: they measure distance by means of time, not miles. “ How far away is the post office?”

You ask. “Oh,” they answer, “ It’s about five minutes from here.” You say, “Yes, but how many miles away is it?” They don’t know.

People in Greece sometimes do not even try to give directions because visitors seldom understand the Greek language. Instead of gibing you the direction, a Greek will often say, “ follow me.” Then he’ll lead you through the streets of the city to the post office.

Sometimes a person doesn’t know the answer to your question. What happens in this situation? A New Yorker might say, “Sorry, I have no idea.” But in Yucatan, Mexico, no one answers, “I don’t know.” People in Yucatan think that “ I don’t know” is impolite. They usually give an answer, often a wrong one. A visitor can get very, very lost in Yucatan!

One thing will help you everywhere ---- in Japan, in the United States, in Greece, in Mexico, or in any other place. You might not understand a person’s words, but maybe you can understand his body language. He or she will usually turn and then point in the correct direction. Go in that direction, and you may find the post office!

The passage mainly tells us that ______________.

A there are not many landmarks in the American Midwest

B never carry a map for travel

C there are different ways to give directions in different parts of the world

D New Yorkers often say, “I have no idea,” but people in Yucatan, Mexico, Never say this

The passage says, “ In Japan, people use landmarks in their directions.” The word “landmark” means _______.

A street names

B building names

C hotels, markets and bus stops

D buildings or places are easily recognized

In which place do people tell distance by means of time?

A Japan B American Midwest

C Los Angeles, California. D Greece

Which of the following is wrong?

A Travelers can learn about people’s customs by asking questions about directions.

B People in some places give directions in miles, but people in other places give directions by means of time.

C A person’s body language can help you understand directions.

D People in different places always give directions in the same way: They use street names.

Among rich countries, people in the United States work the longest hours. They work much longer than in Europe. This difference is quite surprising because productivity per hour worked is the same in the United States as it is in France, Spain and Germany, and it is growing at a similar speed.

In most countries and at most times in history, as people have become richer they have chosen to work less. In other words they have decided to “spend” a part of their extra income on a fuller personal life. Over the last fifty years Europeans have continued this pattern, and hours of work have fallen sharply. But not in the United States. We do not fully know why this is. One reason may be greatly lower taxes in America, which increase the rewards (回报) to work. Another may be more satisfying work, or less satisfying personal lives.

Longer hours do of course increase the GDP (国内生产总值). So the United States has produced more per worker than, say, France. The United Sates also has more of its people at work, while in France many more mothers and older workers have decided to stay at home. The overall result is that American GDP per head is 40% higher than in France, even though productivity per hour worked is the same.

It is not clear which of the two situations is better. As we have seen, work has to be compared with other values like family life, which often get lost in its interest. It is too early to explain the

different trends (趋势) in happiness over time in different countries. But it is a disappointing idea that in the United States happiness has made no progress since 1975, while it has risen in Europe. Could this have anything to do with trends in the work-life balance (平衡)?

56．From the text we know that the author ___________.

A．believes that longer working hours is better

B．prefers shorter working hours to longer ones

C．says nothing certain about which pattern is better

D．thinks neither of the patterns is good

57．Which of the following countries has more of its people at work?

A．Spain. B．France.

C．Germany. D．America.

58．In the last paragraph, the underlined word “which” refers to __________.

A．family life B．situations

C．other values D．trends

59．What message can we get from the text?

A．The GDP of Europe is higher than that of America.

B．Two possible reasons are given for working longer hours in the US.

C．People all over the world choose to work less when they are richer.

D．Americans are happier than Europeans.

60．Which of the following would be the best title for the text?

A．Americans and Europeans. B．Staying at Home.

C．Work and Productivity. D．Work and Happiness.

In the city of Fujisawa, Japan, lives a woman named Atsuko Saeki When she was a teenager, she 36 of going to the United States. Most of what she knew about American 37 was from the textbooks she had read. "I had a 38 in mind: Daddy watching TV in the living room,

Mummy 39 cakes and their teenage daughter off to the cinema with her boyfriend."

Atsuko 40 to attend college in California. When she arrived, however, she found it was not her 41 world.' "People were struggling with problems and often seemed 42 ," she said. "I felt very alone."

One of her hardest 43 was physical education. "We played volleyball." she said.

"The other students were 44 it, but I wasn't."

One afternoon, the instructor asked Atsuko to 45 the ball to her teammates so they could knock it 46 the net- NO problem for most people, but it terrified Atsuko. She was afraid of losing face 47 she failed.

A young man on her team 48 What she was going through." He walked up to me and 49 , 'Come on. You can do that'"

"You will never understand how those words of 50 made me feel.. Four words: You can do that I felt like crying with happiness"

She made it through the class. Perhaps she thanked the young man; she is not 51 .

Six years have passed. Atsuko is back in Japan, working as a salesclerk. "I have 52 forgotten the words." she said. "When things are not going so well, I think of them."

She is sure the young man had no idea how much his kindness 53 to her. "He probably doesn't even remember it," she said. That may be the lesson. Whenever you say something to a person cruel or kind---you have no idea how long the words will 54. She's all the way over in Japan, but still she hears those four 55 words: You can do that.

36. A. learned B. spoke C. dreamed D. heard

37. A. way B. life C. education D. spirit

38. A. photo B. painting C. picture D. drawing

39. A. baking B. frying C. steaming D. boiling

40. A. hoped B. arranged C. liked D. attempted

41. A. described B. imagined C. created D. discovered

42. A. tense B. cheerful C. relaxed D. deserted

43. A. times B. question C. classes D. projects.

44. A. curious about B. good at C. slow at D. nervous about

45. A. kick B. pass C. carry D. hit

46. A. through B. into C. over D. past

47. A. after B. if C. because D. until

48. A. believed B. considered C. wondered D. sensed

49. A. warned B. sighed C. ordered D. whispered

50. A. excitement B. encouragement C. persuasion D. suggestion

51. A. interested B. doubtful C. puzzled D. sure

52. A. never B. already C. seldom D. almost

53. A. happened B. applied C. seemed D. meant

54. A. continue B. stay C. exist D. live

55. A. merciful B. bitter C. simple D. easy

Joe Templer should have known better. After all, he works for a large auto insurance company. It won't hurt to leave the key in the truck this once, he thought, as he filled his gas tank at a self service gas station. But moments later, as he was paying the money, he saw the truck being driven away.

In 1987, 1.6 million motor vehicles were stolen in the United States one every 20 seconds. If _________________, experts predict annual vehicle thefts could exceed two million by the end of the decade.

Vehicle theft is a common phenomenon, which has a direct impact on over four million victims a year. The cost is astonishing.

Many police officials blame professional thieves for the high volume of the thefts. It is a major money maker for organized crime. Typically, stolen cars are taken to pieces and the parts sold to individuals. But as many as 200,000 cars are smuggled out of the country every year. Most go to Latin America, the Middle East and Europe.

Only about 15 percent car thefts result in an arrest, because few police departments routinely conduct in depth auto investigations. When thieves are arrested, judges will often sentence them to probation（缓刑）, not immediately put them in prison because the prisons are overcrowded with violent criminals.

One exception is a Michigan program that assigns 92 police officers to work full time on the state's 65,000 car theft cases a year. Since 1986, when the effort began, the state's auto theft rate has fallen from second in the nation to ninth.

76. What is the best title of the passage? (Please answer within 10 words.)

___________________________________________________________________________

77 Why do you think Joe Templer should be blamed according to the writer? (Please answer within 10 words.)

___________________________________________________________________________

78 Please fill in the blank with proper words or phrases. (Please answer within 10 words.)

___________________________________________________________________________

79. Put the underlined sentence in the passage into Chinese.

___________________________________________________________________________

80. What suggestions would you give the car owners to prevent the car theft? (Please answer within 20 words.)

____________________________________________________________________________

阅读下面短文，掌握其大意，从下列各各题所给的四个选项（A 、B、C和D）中，选出最佳选项，并在答题卷上将该项涂黑。
These days, it is common to see 5-gallon bottles of water being sent to homes. Supermarket 21
are filled with all kinds of bottled water from simple 22 bottles containing “pure spring water” to expensive foreign types of mineral water in glass bottles. In Europe, bottled water is as 23 as soft drinks which are widely accepted in the United States. People are not only interested in the different choices of drinks, but also in the taste of bottled water and its 24 value.
All bottled water on sale must 25 the content of the water on the bottle. Some companies 26
minerals to give the water a better taste. But the term “mineral water” is 27 , because all water, except specially purified water, contains minerals. 28 must be made to tell people clearly what kind of water people are exactly buying: spring water, mineral water, or purified water. For example, “spring water” will have to come from a(n) 29 spring.
Many people choose bottled water 30 tap water, because they 31 the safety of public drinking water. Some people worry about city water 32 . We need to pay close attention to the cleanliness of our drinking water. The government should be responsible for tap water 33 . It should be tested and checked 34 .
Keep in mind that bottled water is 35 . In many cases, you are paying for water that is not much different from tap water. If you are not sure of the safety of your tap water, have it 36 . A local health department can be of 37 . Compared with the cost of bottled water, the testing cost will be less expensive. Letting cold water 38 for a minute or so before taking a drink or using it in preparing a meal is a good way to 39 possible water pollution, especially if the water has been 40 for an hour or more.