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阅读材料,回答题。 How does Science Proceed?How exactly does science work? How do scientis

阅读材料,回答题。

How does Science Proceed?

How exactly does science work? How do scientists go about "doing" science? Ordinarily we think science proceeds in a straightforward way. Ideally, scientists make observations, formulate hypotheses, and test those hypotheses by making further observations. When there is difference between what is observed and what is predicted by the hypothesis, the hypothesis is reviewed. Science proceeds in this way, which is a gradual method of finding the best fit between observation and prediction.

But this idealized version of how one "does" science is naive.Although science demands proof that observations made by one observer be observable by other observers using the same methods.It is by no means clear that even when confronted with identical phenomena different observers will report identical observations.

And it is most certain that, even if the same observations are made, the conclusions as to the meaning of the observations frequently differ.

The fact is that all of us scientists included, see differently. Variations in human perception are well known and have been studied extensively. Distortions in perceptions are frequently seen among observers, even though they may be in identical settings viewing identical phenomena. A documented misperception from history can be found in the experience of Darwin.His ship, Beagle, after anchoring off the Patagonian coast, sent off a landing party in small rowboats. Amazingly, the Patagonian natives watching from shore were blind to the Beagle, but could easily see the tiny rowboats. They have no prior experience of huge sailing ships, but small rowing vessels were an everyday part of their life. Rowboats fit their model of the world but huge ships did not.Their model determined their perceptions.

Our ideas that science proceeds on an utterly objective and straightforward basis ignores the distortions of reality imposed by our own perceptual apparatus. In many cases we see what we have been trained to see, what we are used to seeing. If a subject is fitted with special glasses that are designed to invert the visual field, at first the subject sees everything upside down. After a period of time, as the glasses continue to be worn, a correction is made by our perceptual mechanism and the image is flipped, so that the world once again appears erect.

What is the main idea of the passage? 查看材料

A.The research methods used by scientists

B.Observation and human perception variation

C.The relation between hypothesis and observation

D.The human perceptual mechanism

答案
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更多“阅读材料,回答题。 How does Science Proceed?How exactly does science work? How do scientis”相关的问题

第1题

阅读材料,回答题。 Why Would They Falsely Confess? Why on earth would an innocent person f

阅读材料,回答题。

Why Would They Falsely Confess?

Why on earth would an innocent person falsely confess to committing a crime? To most people, it justdoesn&39;t seem logical. But it is logical, say experts, if you understand what could happen in a police interrogation(审讯) room. Under the right conditions, people&39;s minds are susceptible (易受影响的 ) to influence, and the pressure put on suspects during police grilling (盘问 ) is enormous.

46"The pressure is important to understand because otherwise it&39;s impossible to understand why someone would say he did something he didn&39;t do. The answer is to put an end to an uncomfortable situation that will continue until he does confess." Developmental psychologist Allison Redlich recently conducted a laboratory determine how likely people are to confess to things they didn&39;t do.47The researchers then intentionally crashed the computers and accused the participants of hitting the "alt" key to see if they would sign a statement falsely taking responsibility.

Redlich&39;s findings clearly demonstrate how easy it can be to get people to falsely confess: 59 percent of the young adults in the experiment immediately confessed.48Of the 15 to 16-year-olds, 72 percent signed confessions, as did 78 percent of the 12 to 13-year-olds.

"There&39;s no question that young people are more at risk, " says Saul Kassin, Professor at Williams College, who has done similar studies with similar results.49A psychology Both Kassin and Redlich note that the entire "interrogation" in their experiments consisted of a simple accusation-not hours of aggressive questioning-and still, most participants falsely confessed.

Because of the stress of a police interrogation, they conclude, suspects can become convinced that falsely confessing is the easiest way out of a bad situation.50

请在第__(46)__处填上正确答案。 查看材料

A.In her experiment participants were seated at computers and told not to hit the "Alt" key, because doing so would crash the systems.

B.In some ways," says Kassin, " false confession becomes a rational decision."

C."It"s a little like somebody"s working on them with a dental (牙齿的 ) drill, " says Franklin Zimring, a law professor at the University of California at Berkeley.

D."But adults are highly vulnerable too."

E.How could an innocent person admit to doing something he didn"t do?

F.Redlich also found that the younger the participant, the more likely a false confession.

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第2题

阅读材料,回答题。 Home Schooling All children in the United States have to receive an ed

阅读材料,回答题。

Home Schooling

All children in the United States have to receive an education, but the law does not say they have to be educated at school. A number of parents prefer not to send their children to school,46There are about 300,000 home-schoolers in the United States today. Some parents prefer teaching their children at home because they do not believe that public schools teach the correct religious values; others believe they can provide a better educational experience for their children by teaching them at home.47David Guterson and his wife teach their three children at home. Guterson says that his children learn very differently from children in school.48For example, when there is heavy snowfall on a winter day, it maystart a discussion or reading about climate, snow removal (去除) equipment, Alaska, polai bears (北极熊) ,and winter tourism.A spring evening when the family is out watching the stars is a good time to ask questions about satellites and the space program49

Home schooling is often more interesting than regular schools, but critics say that home-schooled are outsiders who might be uncomfortable mixing with other people in adult life.50However, most parents don&39;t have the time or the desire to teach their children at home, so schools will continue to be where most children get their formal education.

请在第__(46)__处填上正确答案。 查看材料

A.Interestingly, results show that home-schooled children quite often do better than average on national tests in reading and math.

B.Critics also say that most parents are not well qualified to teach their children.

C.Learning starts with the children"s interests and questions.

D.Children who are educated at home are known as "home-schoolers."

E..In some countries, however, children are educated by their parents.

F.If the Brazilian rain forests are on the TV news.it could be a perfect time to talk about how rain forestsinfluence the climate, and how deserts are formed.

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第3题

阅读材料,回答题。 What Is Globalization ? It was the anti-globalization movement that rea

阅读材料,回答题。

What Is Globalization ?

It was the anti-globalization movement that really put globalization on the map. As a word it has existed since the 1960s, but the protests against this allegedly new process, which its opponents condemn as a way of ordering people&39;s lives, brought globalization out of the financial and academic worlds and into everyday current affairs.

In the late 1980s and early 1990s, the business model called the "globalize" financial market came to be seen as an entity that could have more than just an economic impact on the parts of the world it touched.Globalization came to be seen as more than simply a way of doing business, or running financial markets-it became a process. From then on the word took on a life of its own.

So how does the globalize market work? It is modern communications that make it possible; for the British service sector to deal with its customers through a call centre in India, or for a sportswear (运动服 )manufacturer to design its products in Europe, make them in southeast Asia and sell them in North America.

But this is where the anti-globalization side gets stuck in (关注) .If these practices replace domestic economic life with an economy that is heavily influenced or controlled by overseas, then the creation of a globalize economic model and the process of globalization can also be seen as a surrender of power to the corporations, or a means of keeping poorer nations in their place.

Not everyone agrees that globalization is necessarily evil, or that globalize corporations are running the lives of individuals or are more powerful than nations. Some say that the spread of globalization, free markets and free trade into the developing world is the best way to beat poverty the only problem is that free markets and free trade do not yet truly exist.

Globalization can be seen as a positive, negative or even marginal process. And regardless of whether it works for good or ill, globalization&39;s exact meaning will continue to be the subject of debate among those who oppose, support or simply observe it.

Globalization is a term used only in the financial and academic worlds. 查看材料

A.Right

B.Wrong

C.Not mentioned

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第4题

阅读材料,回答题。 How does Organisms Ward off InvadersThe livelihood of each species in t

阅读材料,回答题。

How does Organisms Ward off Invaders

The livelihood of each species in the vast and intricate assemblage of living things depends on the existence of other organisms.This interdependence is sometimes subtle,some times obvious.Perhaps the most straightforward dependence of one species on another occurs with parasites,organisms that live on or in other living things and derive nutrients directly from them.The parasitic way of life is widespread.A multitude of microorganisms(including viruses and bacteria,and an army of invertebrates or creatures lacking a spinal column(including crustaceans,insects,and many different types of worms)make their livings directly at the expense of other creatures.In the face of this onslaught,living things have evolved a variety of defense mechanisms for protecting their bodies from invasion by other organisms.

Certain fungi and even some kinds of bacteria create substances known as antibiotics into their external environment.These substances are capable of killing or inhibiting the growth of various kinds of bacteria that also occupy the area,thereby eliminating or reducing the competition for nutrients.The same principle is used in defense against invaders in other groups of organisms.For example,when attacked by disease--causing fungi or bacteria,many kinds of plants produce chemicals that help to ward off the invaders.

Members of the animal kingdom have developed a variety of defense mechanisms for dealing with parasites.Although these mechanisms vary considerably,all major groups of animals are capable of detecting and reacting to the presence of“foreign”cells.In fact,throughout the animal kingdom from sponges to certain types of wornls shellfish,and all vertebrates(creatures possessing spinal column)

there is evidence that transplants of cells or fragments of tissues into an animal are accepted only if they come from genetically compatible or closely related individuals.

The ability to distinguish between“self”and“non-self”,while present in all animals,is most efficient among vertebrates,which have developed an immune system as their defense mechanism.The immune system recognizes and takes action against foreign invaders and transplanted tissues that are treated as foreign cells.

What does the passage mainly discuss? 查看材料

A.How parasites reproduce

B.How organisms react to invaders

C.How antibiotics work to cure disease

D.How the immune system of vertebrates developed

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第5题

根据以下材料,回答题Influence from InternetThere can be no doubt at all that the Intemet ha

根据以下材料,回答题

Influence from Internet

There can be no doubt at all that the Intemet has made a huge difference to our lives. Parents are worried that children spend too much time playing on the Intemet, hardly ___________ (51) doing anything else in their spare time. Naturally, parents are ___________ (52) to find out why the Interact is so attractive, and they want to know if it can be ___________ (53) for their children. Should parents worry if their children are spending that much time ___________ (54) their computers?

Obviously; if children are bent over their computers for hours, ___________ (55) in some game,instead of doing their homework, then something is wrong. Parents and children could decide how much use the child should ___________ (56) of the Intemet and the child should give ___________ (57) to parents that it won"t interfere with homework. If the child is not ___________ (58 ) to this arrangement,the parent can take more drastic ___________ (59) dealing with a child"s use of the Intemet, which is not much ___________ (60) from any other sort of bargain about behaviour.

Any parent who is ___________ (61) alarmed about a child"s behaviour should make an appointment to ___________ (62) the matter with a teacher. Spending time in front of the screen does not ___________ (63) affect a child"s performance at school. Even ifa child is ___________ (64) crazy about using the Intemet, he or she is probably just ___________ (65) through a phase, and in a few months there will be something else to worry about!

回答(51)题 查看材料

A.always

B.rarely

C.never

D.ever

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第6题

阅读材料,回答题: Flu Shots Or Not?It sounded like a good idea when New York City&39;s ~n

阅读材料,回答题:

Flu Shots Or Not?

It sounded like a good idea when New York City&39;s ~nayor, Rudollph Giuliani, advised New Yorkers recently to get a flu shot. After all,20,000 Americans each year die of influenza. And this year in particular, the mayor suggested, getting a flu shot might be an especially good idea, since it could help doctors distinguish between flu and the deadly inhalational(吸入的) form. of anthrax (炭疽). How? Both anthrax and flu exhibit strikingly similar symptoms--fever, chills and muscle aches--in the early days of the infection. Physicians would be quick to suspect anthrax in anyone who was vaccinated (接种疫苗) against flu and still developed fever and chills. That would give them a better chance to identify any new victims of terror while their infection was still in its earliest, most treatable stages.

Or so the mayor&39;s reasoning went. Unfortunately, there are a couple of problems with his log- ic. For one thing, getting vaccinated against influenza doesn&39;t guarantee you won&39;t get sick. Al- though highly effective, the flu vaccine(疫苗) protects against only the dominant types of the dis- ease and even then does not provide 100% protection. It takes a couple of weeks for your body to respond to the vaccine with a sufficient number of antibodies (抗体). Each year thousands of Americans who get the vaccine nevertheless still get the flu.

There are also plenty of reasons you might develop fever, chills and muscle aches that have nothing to do with either anthrax or flu. Indeed, doctors estimate that more than 80% of all flu- like illnesses each winter are caused by other groups of viruses. Getting vaccinated against flu can&39;t protect you against suffering from these other illnesses.

In the worst case, asking all healthy adults to get vaccinated could actually have the opposite effect to the one intended, leading to even more deaths if it means we run out of shots for those who are most vulnerable to the infection. Already there have been delays in getting this year&39;s shipment of vaccine to clinics and doctor&39;s offices. Those who should be at the front of the line in- clude folks who are 65 or older, nursing-home residents and adults and children with chronic health problems as well as anyone who cares for or lives with such people,flu shots are also im- portant men and women whose immune system is weakened by HIV(艾滋病病毒) or other conditions.

The best reason to get the flu vaccine is that it protects against most flus--not that you&39;re worried about getting anthrax. While inhalational anthrax has killed only five people so far, many more could be at risk from flu-related complications. There&39;s no need to worsen the tragedy by making this year&39;s influenza epidemic any worse.

Quite a few New Yorkers took their mayor‘s recent advice and got a flu shot. 查看材料

A.Right

B.Wrong

C.Not mentioned

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第7题

阅读材料,回答题。 The Jobless Rate in U. S.There are only a couple of ways to explain how

阅读材料,回答题。

The Jobless Rate in U. S.

There are only a couple of ways to explain how the capacity of U.S. workers to claim their accustomed share of the nation&39;s income has so stunningly collapsed. Outsourcing is certainly a big part of the picture.

As Stephen Roach, a famous economist, has noted, private-sector hiring in the current recovery is roughly ?million jobs shy of what would have been the norm in previous recoveries and U.S.corporations, high-tech as well as low-tech, are busily hiring employees from lower-wage nation instead of from our own.

The jobless rate among U.S. software engineers, for instance, has doubled over the past three years.In Bangalore, India, where American companies are on a huge hiring spree for the kind of talent they used to scoop up in Silicon Valley, the starting annual salary for top electrical engineering graduates, says Business Week, is $ 10,000 compared with $ 80,000 here in the States.Tell that to a software writer in Palo Alto and she&39;s not likely to up her boss for a raise.That software writer certainly doesn&39;t belong to a union, either.

Indeed, the current recovery is not only the first to take place in all economy in which global wage rates are a factor, but the first since before the New Deal to take place in an economy in which the rate of private-sector unionization is in single digits just 3.5 percent of the workforce.

The current administration is not responsible for the broad contours of this miserably misshapen recovery, but its every action merely increases the imbalance of power between America&39;s employers and employees.But the Democrats&39;prescriptions for more broadly shared prosperity need some tweaking, too.With the globalization of high-end professions, no Democrat can assert quite so confidently the line that Bill Clinton used so often : What you earn is a result of what you learn.This year&39;s crop of presidential candidates is taking more seriously the importance of labor standards in trade accords, and the right of workers to organize.But they&39;ve got a way to go to make the issue of stagnating incomes into the kind of battle crying it should be in the campaign against Bush.If they&39;re not up to it, I say we outsource them all and bring in some pools from Bangalore.

Which of the following might have contributed to the current miserably misshapen recovery in the U.S.? 查看材料

A.The New Deal.

B.The globalization of eco.nomy.

C.The economic policies adopted by the Bush administration.

D.U.S.workers are no longer capable of sharing the increase of nation"s income.

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第8题

阅读材料,回答题。Step Back in Time Do you know that we live a lot longer now than the peopl

阅读材料,回答题。

Step Back in Time

Do you know that we live a lot longer now than the people who were born before us? One hundred years ago the average woman lived to be 45. But now, she can live until at least 80.

One of the main reasons for people living longer is that we know how to look after ourselves better. We know which foods are good for us and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better again. And we know how important it is to do lots of exercise to keep our hearts beating healthily.

But in order that we don"t slip back into bad habits, let"s have a look at what life was like 100 years ago.

Families had between 15 and 20 children, although many babies didn"t live long.Children suffered from lots of diseases, especially tickets (佝偻病 ) and scurvy (坏血病) , which are both caused by bad diets. This is because many families were very poor and not able to feed their children well.

Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string, because there was no room for them to lie down.

People didn"t have fridges until the 1920s. They kept fresh food cold by storing it on windowsills (窗台板 ) , blocks of ice, or even burying it in the garden.

Some children had to start work at the age of seven or eight to earn money for their parents. If you had lived 100 years ago, you might well be selling matchsticks (火柴杆) (a job done by many children ) or working with your dad by now.

16. On average women lived longer than men 100 years ago. 查看材料

A.Right

B.Wrong

C.Not mentioned

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第9题

回答题·Read the text below about opinions on China’S car market. ·In most of the lines(3

回答题

·Read the text below about opinions on China’S car market.

·In most of the lines(34-45),there is one extra word.It is either grammatically,incorrect or does not讯in with the meaning of the text.Some lines,however,are correct.

·If a Iine is correct.write CORRECT on your Answer Sheet.

·lf there is an extra Word in the line.write the extra word in CAPITAL LETTERS on your Answer Sheet.

·The exercise begins with two examples,(0 and 00).

回答题·Read the text below about opinions on China’S 34__________ 查看材料

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第10题

阅读材料,回答题: Computers in CarsYou&39;re far from home on alonely road. Shadowy fores

阅读材料,回答题:

Computers in Cars

You&39;re far from home on alonely road. Shadowy forests stretch away on both sides. athickmist (雾) makes it difficult to see far beyond your car&39;s windshield (挡风玻璃).

"Can this B.e route 90A?" you wonder. If it is, you should be near atown. Yet there&39;s nohint of one. Night is closing in. And you&39;re low on gasoline.

This is asituation where an in-car computer that can navigate would be abig help.

A car computer that navigates? Yes! Such computers exist. Several experimental models arebeing tested by General Motors, Ford, Chrysler, and several foreign car makers. These computersvary in detail. but they all contain series of maps on videodiscs or videotapes. For example, onecomputer system contains 13,300 maps covering the continental US.

before starting out on atrip, A.driver can type in the code for the region he or she plans todrive through. The computer then shows amap of that region. At the same time, atiny radio re-ceiver linked to the computer goes to work. It picks up signals from navigation satellites such asthe NAVSTAR network. Using these signals, the computer shows the car&39;s position at all timesand displays this position on the map. The computer can also calculate and display the best routeto follow.

Anavigation computer may also receive and use dataabout road construction, weather condi-tions, and trafficjams. This information would be displayed to the driver and the computer wouldalso use the information to work out alternate (交替的 ) routes.

Most cars nowadays also contain computers that help cars run more efficiently. Microproces-sors (微处理的) control certain engine functions B.y regulating the mixing of fuel. Dataon carspeed, oil pressure, revolutions per minute, engine temperature, and fuel level can be displayedas digital data(numbers) or warning lights.

Some auto designers suggest that acentral computer display be used to clearly present suchtimely information as car speed and fuel level. Warning lights would indicate adrop in oil pres-sure or asudden rise in engine temperature. To get more information on these conditions, thedriver could call it up on the computer display screen. When needed, the computer could be"asked" to provide navigation aid or information about the car&39;s condition.

by describing atypical situation of alost driver on the road, the author intends to__________. 查看材料

A.make us believe how complex the highway computer network is

B.let us know how in-car computers are linked to road signs

C.show us how helpful anavigation computer can be

D.tell us that NAVSTAR has come into use

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