C A recent study, while showing a generally positive attitude toward science, also suggests a widespread worry that it may be “running out of control . This idea is dangerous. Science can be a force 题目和参考答案——青夏教育精英家教网—

题目内容

A recent study, while showing a generally positive attitude toward science, also suggests a widespread worry that it may be “running out of control”. This idea is dangerous.

Science can be a force for evil as well as for good. Its applications can be channeled either way, depending on our decisions. The decisions we make, personally or collectively, will determine the outcomes of science. But here is a real danger. Science is advancing so fast and is so strongly influenced by businesses that we are likely to believe whatever decisions we come to will make little difference. And, rather than fighting for the best possible policies, we may step back and do nothing.

Some people go even further. They say that despite the moral and legal objections（反对）, whatever is scientifically possible will be done-somewhere, sometime. They believe that science will get out of control in the end. This belief is dangerous too, because it fuels a sense of hopelessness and discourages then from making efforts to build a safer world.

In our interconnected world, the lack of agreement in and out of the world of science can lead to the failure to control the use of science. Without a common understanding, the challenges of “controlling” science in this century will be really tough. Take human cloning for example. Despite the general agreement among scientists on its possible huge impact（影响） on traditional moral values, some countries still go ahead with the research and development of its related techniques. The outcomes are hard to predict.

Therefore, discussions on how science is applied should be extended far beyond scientific societies. Only through the untied efforts of people with hope, can we be fully safe against the misuse of science and can science best serve mankind in the future.

63. What can we conclude from the recent study?

A. People think highly of science.

B. People hold mixed opinions about science.

C. Science is getting dangerously out of control.

D. Science is used for both good and bad purposes.

64. According to the passage, what will happen if we hold that science is getting beyond control?

A. The development of science will hopelessly slow down.

B. Businesses will have even greater influence on science.

C. The public will lose faith in bringing about a bright future.

D. People will work more actively to put science under control.

65. The discussion should reach beyond scientific societies because ________.

A. scientists have failed to predict the outcomes

B. the ties between different areas need strengthening

C. united efforts are necessary for the development of science

D. people need to work together to prevent the bad use of science

66. What is the main idea of the passage?

A. Science and its applications bring us many dangers.

B. The development of science mostly lies in people’s attitudes.

C. Mankind can largely take control of science with their efforts.

D. The future of science will be influenced by the dangerous ideas.

【小题1】B

【小题2】C

【小题3】D

【小题4】B

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BORDER

CROSSINGS

While there are no restrictions on zhe amount of money that you can bring

across the border.you must report to both the US and Canadian border

services amounts equal to or greater than $10.000.

PERSONAL EXEMPTIONS（免税）ON PURCHASES

AMERICANS RETURNING TO THE US

Less than 48 hours: $ 200 US

48 hours or more: $ 800 US duty-free personal exemption.

next $ 1.000 US at 3%

Including up to 100 cigars and 100 cigarettes.

CANADIANS RETURNING TO CANADA

Less than 24 hours: $ 50 CAN

48 hours or more: $ 400 CAN

Including up to 100 cigars and 200 cigarettes.

7 days or more: $ 750 CAN

Including up to 100 cigars and 200 cigarettes.

DOCUMENTATION NEEDED FOR

BORDER CROSSING

LAND OR SEA TO THE US(INCLUDING FERRIES)

A valid passport or passport card, or a NEXUS card.

(A NEXUS card is a Trusted Traveler Program that provides quick travel for

pre-approved,low risk travelers through special lanes.)

A recent Washington State, New York or BC driver’s license.

Note: Children 15 years of age and younger require only a birth certificate or

copy.(Certified copies are not required but are advised.)

AIR TRAVEL TO THE US

A valid passport, an Air NEXUS card, or a U.S. Coast Guard Merchant

Marine Document.

1.If a Canadian who is on a 7-day trip to New York buys $ 800 CAN worth of goods,how much should he pay tax on when returning home?

A. $ 800 CAN B. $750 CAN C.$ 400 CAN D. $ 50 CAN

2.For an American citizen on a 2-day tour of Canada,how much tax does he have to pay on $ 1.600 US worth of purchases when returning to the US?

A. $ 24 US B. $ 48 US C. $52 US D. $ 200 US

3.What documentation should a couple with a 7-year-old child carry when they drive a car from Canada to America?

A. A BC driver’s license, an Air NEXUS card, and a birth certificate.

B. An Air NEXUS card, a U.S. Coast Guard Merchant Marine Document, and a birth certificate.

C.Two vaild passport crads and a certified copy of a birth certificate.

D. A NEXUS card, a U.S. Coast Guard Merchant Marine Document.,and a certified copy of a birth certificate.

Last year, I was speaking at a gathering of wealthy male investors. The organizers posted the 1 of a survey showing that only a small percentage of wealthy men believed their wives spent too much.

'What?' 2 one participant. 'Those guys have to be lying.'

There is no reliable 3 of who spends more among the rich: men or women. Both will say the other is the 4 spender.

A recent survey by Wilmington Trust, Campden Research and Relative Solutions proves the 5 . The companies polled 40 women (I know, that is more like a show of hands than 'survey'), each with a net worth of $25 million or more.

About half the respondents（受调查者） inherited（.继承） their 6 , a quarter 7 it from their husbands and the other quarter earned it 8 . That is roughly in line with other surveys of 9 women and the source of their money. One interesting note: among the self-made women, 90% got their money from owning a business, rather than 10 a salary.

As for 11 , almost all the women (90%) described their spending habits as 'below their means.' The report on the survey said that is 'possibly 12 they do not view their extreme wealth as defining their success.

'Women tend not to spend as much as 13 and splash（泼洒得使到处是） their names all over the place,' said one woman in the survey, describing her spending as conservative and he lifestyle as 'below the radar.'

Many women also worried about wealth having 14 effects on their children and didn't want to spend lavishly（挥霍） to 15 a bad example.

At the same time, 70% of the women said they 'buy nice things when 16 .' And 93.5% of the women said they were responsible for making 17 on major purchases, which 18 that they do a lot of the big spending.

Of course, for truly major purchases a house in Aspen, Colo., a Gulfstream, a Feadship the couple probably makes the decision 19 .

But what about other 20 ? Do you think men or women do most of the high-end spending?

( ) 1. A. results B. reasons C. times D. directions

( ) 2. A. cried B. sighed C. shouted D. laughed

( ) 3. A. data B. measure C. division D. news

( ) 4. A. biggest B. bigger C. smaller D. worse

( ) 5. A. matter B. message C. point D. report

( ) 6. A. spirit B. money C. habit D. cost

( ) 7. A. bought B. robbed C. got D. earned

( ) 8. A. itself B. herself C. ourselves D. themselves

( ) 9. A. wealthy B. poor C. ordinary D. honest

( ) 10. A. making B. earning C. taking D. spending

( ) 11. A. buying B. wasting C. spending D. saving

( ) 12. A. when B. if C. whether D. because

( ) 13. A. women B. youth C. adults D. men

( ) 14. A. serious B. good C. bad D. various

( ) 15. A. send B. set C. do D. give

( ) 16. A. necessary B. possible C. pleased D. anxious

( ) 17. A. plans B. decisions C. appointments D. suggestions

( ) 18. A. notices B. stresses C. implies D. intends

( ) 19. A. away B. together C. as well D. out

( ) 20. A. purchases B. effects C. differences D. Examples

The findings of a new survey have American professors talking about the good old days—when A's were a lot tougher to earn．

Sites like Rate My Professors．com make it easy for students to find a class taught by a professor who is known as an "easy grader"．A recent survey by Kaplan Test Prep found that 46 percent of the more than 1,200 students polled admitted to using the site for just such a purpose．

"Our research shows that many of today's college students are looking at multiple factors when picking out courses: overall teacher quality that will result in a good learning experience, but also instructors who don't like to award a lot of C's and D's," said Jeff Olson, vice president of research at Kaplan Test Prep．

"While it makes sense that students would choose kinder graders, it also helps explain the recent popularity of grade inflation（膨胀）．"

Grade inflation is seen by many professors as poisoning the learning environment．Some, like former Duke University professor Stuart Rojstaczer, are righting it head-on．

On his website, Gradelnflation．com, he releases an annual list of schools where grade inflation is the worst．

This year, he decided to name the schools where grades were inflated the least．He praised, for example, Princeton University, as well as Purdue University, where the average GPA has remained around 2．8 for over 30 years．

"Purdue doesn't even seem to know that grade inflation exists in the US," Rojstaczer says．"Ignorance is bliss（极大的幸福）．"

Grade inflation is spreading because _____．

A．it's poisoning the learning environment

B．instructors intend to improve their overall teaching quality

C．many instructors adapt to the students' expectations

D．students get easy access to sites like RateMyProfessors．com

The passage suggests that _____．

A．universities will employ hard graders

B．if we want to be happy, we should be ignorant

C．A's are becoming easy to earn at most US universities

D．professors and instructors should give students higher grades

The writer tends to _____．

A．favor easy graders B．see grade inflation as unavoidable

C．oppose Kaplan Test Prep D．miss the days when A's were hard to earn

（2011·湖南卷）C

A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct (不同的) species

The discovery was made by researchers at York and Harvard universities when they were examining the genetic relationship between the ancient woolly mammoth and mastodon to modern elephants—the Asian elephant, African forest elephant and African savanna elephant

Once they obtained DNA sequences (序列) from two fossils (化石)，mammoths and mastodons the team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths.

The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence of the two species took place around the time of the divergence of Asian elephants and woolly mammoths. This result amazed all the scientists.

There has long been debate in the scientific community that the two might be separate species but this is the most convincing scientific evidence so far that they are indeed different species.

Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3.5metres while the forest elephant has an average shoulder height of 2.5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA.

Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, “We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose .”

66. One of the fossils studied by the researchers is that of ________.

A. the Asian elephant B. the forest elephant

C. the savanna elephant D. the mastodon elephant

67. The underlined word “divergence” in paragraph 4means “________”

A. evolution B. exhibition C. separation D. examination

68. The researcher’s conclusion was based on a study of the African elephant’s ____________

A. DNA B. height C. weight D. population

69. What were Alfred Roca’s words mainly about?

A. The conversation of African elephants.

B. The purpose of studying African elephants

C. The way to divide African elephants into two units

D. The reason for the distinction of African elephants

70. Which of the following can be the best title for the passage?

A. Naturalist’s Belief about Elephants. B. Amazing Experiment about Elephants

C. An Unexpected Finding about Elephants D. A Long scientific Debate about Elephants

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