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2010年高考英语试题分类汇编——科普类阅读理解

Have you winterized your horse yet? Even though global warming may have made our climate more mild, many animals are still hibernating(冬眠) .It's too bad that humans can't hibernate. In fact, as a species, we almost did.
Apparently, at times in the past , peasants in France liked a semi-state of human hibernation . So writes Graham Robb, a British scholar who has studied the sleeping habits of the French peasants. As soon as the weather turned cold people all over France shut themselves away and practiced the forgotten art of doing nothing at all for months on end.
In line with this, Jeff Warren, a producer at CBC Radio's The Current, tells us that the way we sleep has changed fundamentally since the invention of artificial(人造的) lighting and the electric bulb.
When historians began studying texts of the Middle Ages, they noticed something referred to as "first sleep", which was not clarified, though.  Now scientists are telling us our ancestors most likely slept in separate periods. The business of eight hours' uninterrupted sleep is a modern invention.
In the past , without the artificial light of the city to bathe in, humans went to sleep when it became dark and then woke themselves around midnight. The late night period was known as "The Watch" It was when people actually kept watch against wild animals ,although many of them simply moved around or visited family and neighbours .
According to some sleep researchers, a short period of insomnia(失眠) at midnight is not a disorder .It is normal . Humans can experience another state of consciousness  around their sleeping, which occurs in the brief period before we fall asleep or wake ourselves in the morning .This period can be an extraordinarily creative time for some people .The impressive inventor, Thomas Edison , used this state to hit upon many of his new ideas.
Playing with your sleep rhythms can be adventurous  ,as anxiety may set in. Medical science doesn't help much in this case. It offers us medicines for a full night's continuous sleep, which sounds natural ; however, according to Warren's theory,it is really the opposite of what we need.

1.

The example of the French peasants shows the fact that.

A.

people might become lazy as a result of too much sleep

B.

there were signs of hibernation in human sleeping habits

C.

people tended to sleep more peacefully in cold weather

D.

winter was a season for people to sleep for months on end

2.

The late night was called "The Watch"because it was a time for people.

A.

to set traps to catch animals

B.

to wake up their family and neighbours

C.

to remind others of the time

D.

to guard against possible dangers

3.

What does the author advise people to do ?

A.

Sleep in the way animals do.

B.

Consult a doctor if they can't sleep.

C.

Follow their natural sleep rhythm.

D.

Keep to the eight-hour sleep pattern.

4.

What is the author's purpose in writing the passage?

A.

To give a prescription for insomnia.

B.

To urge people to sleep less.

C.

To analyze the sleep pattern of modern people.

D.

To throw new light on human sleep.

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Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly. The symptoms of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.

Certain microorganisms(微生物)cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release(释放)poisons that make people sick.

Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepared. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have a bad reaction to those chemicals when they eat the crops.

Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms.

When people handle food properly, the risk of food poisoning is very small. Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with dirty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat wild mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous.

Most people recover from food poisoning after a few days of resting and drinking extra water. If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.

1.

Which of the following statements is NOT true?

A.

Food when poisoned can make people sick.

B.

Food poisoning means death.

C.

Food poisoning comes in varieties.

D.

Food poisoning can be serious.

2.

We know from the passage that the symptoms of food poisoning.

A.

are always accompanied by a fever

B.

are too common to be noted

C.

can be noticed within hours

D.

can he ignored

3.

Food poisoning can be caused by all the following EXCEPT

A.

some chemicals

B.

low temperatures

C.

some tiny living things

D.

certain natural materials

4.

From Paragraph 5,we can learn that

A.

mushrooms should not be eaten

B.

vegetables are safer than meat and seafood

C.

natural poisons are more dangerous than chemicals

D.

different types of food should be handled differently

5.

It can be inferred from the passage that

A.

natural materials are safe in food processing

B.

chemicals are needed in food processing

C.

food poisoning can be kept under control

D.

food poisoning is out of control

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Along the river banks of the Amazon and the Orinoco there lives a bird that swims before it can fly, flies like a fat chicken, eats green leaves, has the stomach of a cow and has claws (爪) on its wings when young. They build their homes about 4.6m above the river, an important feature (特征) for the safety of the young. It is called the hoatzin.
In appearance, the birds of both sexes look very much alike with brown on the back and cream and red on the underside. The head is small, with a large set of feathers on the top, bright red eyes, and blue skin. Its nearest relatives are the common birds, cuckoos. Its most striking feature, though, is only found in the young.
Baby hoatzins have a claw on the leading edge of each wing and another at the end of each wing tip. Using these four claws, together with the beak (喙), they can climb about in the bushes, looking very much like primitive birds must have done. When the young hoatzins have learned to fly, they lose their claws.
During the drier months between December and March hoatzins fly about the forest in groups of 20 to 30 birds, but in April, when the rainy season begins, they collect together in smaller living units of two to seven birds for producing purposes.

1.

What is the text mainly about?

A.

Hoatzins in dry and rainy seasons.

B.

The relatives and enemies of hoatzins.

C.

Primitive birds and hoatzins of the Amazon.

D.

The appearance and living habits of hoatzins.

2.

Young hoatzins are different from their parents in that

A.

they look like young cuckoos

B.

they have claws on the wings

C.

they eat a lot like a cow

D.

they live on river banks

3.

What can we infer about primitive birds from the text?

A.

They had claws to help them climb.

B.

They could fly long distances.

C.

They had four wings like hoatzins.

D.

They had a head with long feathers on the top.

4.

Why do hoatzins collect together in smaller groups when the rainy season comes?

A.

To find more food.

B.

To protect themselves better.

C.

To keep themselves warm.

D.

To produce their young.

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Science can't explain the power of pets, but many studies have shown that the company of pets can help lower blood pressure (血压) and raise chances of recovering from a heart attack, reduce loneliness and spread all-round good cheer.

Any owner will tall you how much joy a pet brings. For some, an animal provides more comfort than a husband/wife. A 2002 study by Karen Allen of the State University of New York measured stress (紧张) levels and blood pressure in people - half of them pet owners -while they performed 5 minutes of mental arithmetic (算术) or held a hand in ice water. Subjects completed the tasks alone, with a husband/wife, a close friend or with a pet. People with pets did it best. Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates. With pets in the room, people also made fewer math mistakes than when doing in front of other companions. It seems people feel more relaxed (放松)around pets, says Allen, who thinks it may be because pets don't judge.

A study reported last fall suggests that having a pet dog not only raises your spirits but may also have an effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on diet-and-exercise programs; a separate group of 56 people without pets were put on a diet program. On average, people lost about I1 pounds, or 5% of their body weight. Their dogs did even better, losing an average of 12 pounds, more than 15% of their body weight. Dog owners didn't lose any more weight than those without dogs but, say researchers, got more exercise overall-mostly with their dogs - and found it worth doing.

1.

What does the text mainly discuss?

A.

What pets bring to their owners.

B.

How pets help people calm down.

C.

People's opinions of keeping pets.

D.

Pet's value in medical research.

2.

We learn from the text that a person with heart disease has a better chance of getting well if

A.

he has a pet companion

B.

he has less stress of work

C.

he often does mental arithmetic

D.

he is taken care of by his family

3.

According to Allen, why did the people do better with pets around when facing stressful tasks?

A.

They have lower blood pressure.

B.

They become more patient.

C.

They are less nervous.

D.

They are in higher spirits.

4.

The research mentioned in the last paragraph reports that

A.

people with dogs did more exercise

B.

dogs lost the same weight as people did

C.

dogs liked exercise much more than people did

D.

people without dogs found the program unhelpful

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When I first got an email account ten years ago, I received communications only from family,friends,and colleagues.Now it seems that every time I check my e-mail ,I have an endless seriers of advertisement and otner correspondence that do not interest the at all.If we want e-mail to continue to be useful,we need special laws that make spamming(发送垃圾邮件) a crime.
If lawmakers do not do something soon to prohibit spam,the problem will certainly get much worse。Computer programs allow spammers to send hundreds of millions of e-mails almost instantly 。as more and more advertisers turn to spam to sell their products ,individual(个人的)e-mail boxes are often flooded with spam e-mails。Would people continue to use e-mail if they ahd to deal with an annoying amount of spam each time?
This problem is troubling for inviduals and companies as well. Many spam emails contain computer viruses that can shut down the entire network of a company.Companies rely on e-mail on on e-mail for their Comployees to communicate with each other. Spam frequently causes failures in their local commnications networks, and their employees are thus unable to communicate effectively.such a situationg results in a loss of productivity and requires companies to repeatedly repair their networks.These computer problems raise productton costs of companies ,which are,in the end,passed on to the consumer.
For these reasons,I believe that lawmakers need to legislate (立法) against spam.Spammers should be fined,and perhaps sent to prison if they continue to disturb people.E-mail is a tool which helps people all over the world to communicate conveniently,but spam is destroying this conwenience.
1.What does the underlined word “correspondence” in the Paragraph 1 probably mean?                                                         
A.messages     B.ideas          C.connections         D.programs
2.According to the text, what is the major cause of the flooding spam?     
A.Companies rely on e-mail for communications.
B.More people in the world communicate by e-mail.
C.Many computer viruses contain spam e-mail.
D.More advertisers begin to promote sales through spam.
3.According to Paragraph 3,who is the final victim of spam?            
A. The business                B. The advertiser        
C.The employee               D.The consumer
4.What is the purpose of the text?
A.To inform                 B.To educate                 C.To persuade               D.To instruet

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Boiler rooms are often dirty and steamy, but this one is el.ean and cool. Fox Point is a very new47-unit living building in South Bronx, one of the city’s poorest areas. Two-thirds of the people living there are formerly (以前) homeless people, whose rent is paid by the government. The rest are low-income families.  The boiler room has special equipment, which produces energy for electricity and heat. It reuses heat that would otherwise be lost to the air, reducing carbon emissions(碳排放)while also cutting costs.
Fox Point is operated by Palladia, a group that specializes in providing housing and services to needy, people. Palladia received support from Enterprise Community Partners (ECP), which helps build affordable housing by providing support to housing developers.
ECP has created national standards for healthy, environmentally (环境方面) clever and affordable homes which are called, the Green Communities Standards. These standards include water keeping, energy saving and the use of environmentally friendly building materials.  Meeting the standards increases housing construction costs by 2%, which is rapidly paid back by lower running costs. Even the positioning of a window to get most daylight can help save energy.
Michael. Bloomberg, New York's mayor, plans to create 165,000 affordable housing units for500,000 New Yorkers. Almost 80% of New York City’s greenhouse-gas emissions come from buildings, and 40% of those are caused, by housing.  So he recently announced that the city’s Department of Housing and Preservation and Development (DHPD) , whose duty is to develop and keep the city’s supply of affordable housing, will require all its new projects to follow ECP’s green standards.
Similar measures have been taken by other cities such as Cleveland and Denver, but New York’s DHPD is the largest city developer of affordable housing in the country.
1. What is the purpose of describing the boiler room in the first paragraph?
A.  To explain the measures the city takes to care for poor people. 
B.  To suggest that affordable housing is possible in all areas.
C.  To show how the environment-friendly building works.
D.  To compare old and new boiler rooms.
2. What is an advantage of the buildings meeting the Green Communities Standards?
A.  Lower running costs.
B.  Costing less in construction.   
C.  Less air to be lost in hot days.
D.  Better prices for homeless people.
3. It can be learned from the text that,           
A.  New York City is seriously polluted
B.  people’s daily life causes many carbon emissions in New York City
C.  a great number of people in New York City don't have houses to live in
D.  some other cities have developed more affordable housing than New York City
4. What is the main purpose of this text?
A.  To call on people to pay more attention to housing problems.
B.  To prove that some standards are needed for affordable housing.
C.  To ask society to help homeless people and low-income families.
D.  To introduce healthy, environmentally clever-and affordable housing.

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Every day we experiencc one of the wonders of the world around us without even realizing it It is not the amszing complexity of television. Nor the impressive tcchnology of transport The universal wonder we share and
Experience is our ability to make noises with our mouths, and so transmit ideas and thoughts to each other’s minds. This ability comes so naturally that tend to forget what a miracle(奇迹)it is.
Obviously, the ability to talk is something that marks humans off from animals. Of course, some animals have powers just as amazing. Birds can fly thousands of miles by observing positions of the stars in the sky in relation to the time of day and year. In Nature’s went show, humans are a species of animal that have deve pod their own special act. If we reduce it to basie ferms, it’s a ability for communicating information to ther by varying sounds we make as we breathe out.
Not the to don’t have other powers of communication. Our facia. expressions convey our emotions, such as anger, or jout or disappointment. The way we hold our beads can indicate to others whether we are happy or sad. This is so-called “body language”. Bristling(直立的)fur is an unmistakable warning of attack among many animals. Similarly, the bowed bead or drooping tail shows a readiness to take second place in any animal gathering.
Such a means of communication is a basic mechanism that animals, including human beings, instinctively acquire and display. Is the ability to speak just another sort of instinct? If so, how did human beings acquire this amazing skill? Biologists can readily indicate that particular area of our brain where speech mechanisms function, but this doesn’t tell us how that part of our bodies originated in our biological history.
1.According to the passage, the wonder we take for granted is_________.
A.our ability to use language
B.the miracle of technology
C.the amazing power of nature
D.our ability to make noises with mouth
2.What feature of “body language”mentioned in the passage is common to both humans and animals?
A.Lifting beads when sad.
B.Keeping long faces when angry.
C.Bristling hair when ready to attack.
D.Bowing heads when willing to obey.
3.What can be inferred from Paragraph 3?
A.Body language is unique to humans.
B.Animals express emotions just as humans do.
C.Humans have other powers of communication.
D.Humans are no different from animals to some degree.
4.This pastge is mainly about________________.
A.the development of body language
B.the special role humans play in nature
C.the power to convey information to others
D.the difference between humans and animals in language use

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Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.
“To provide enough power, we need certain methods with high energy density(密度)”,said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”
Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.
“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”
His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.
“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”
Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.
1. Which of the following is true of Jae Kwon?
A. He teaches chemistry at MU. 
B. He developed a chemical battery.
C. He is working on a nuclear energy source.
D. He made a breakthrough in computer engineering.
2. Jae Kwon gave examples in Paragraph 4_________.
A. to show chemical batteries are widely applied.
B. to introduce nuclear batteries can be safely used.
C. to describe a nuclear-powered system.
D. to introduce various energy sources.
3. Liquid semiconductor is used to _________.
A. get rid of the radioactive waste  
B. test the power of nuclear batteries.
C. decrease the size of nuclear batteries
D. reduce the damage to lattice structure.
4. According to Jae Kwon, his nuclear battery _______.
A. uses a solid semiconductor       
B. will soon replace the present ones.
C. could be extremely thin          
D. has passed the final test.
5. The text is most probably a ________.
A. science news report        B. book review   
C. newspaper ad              D. science fiction story

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Have you ever wondered?
1.Why do airplanes take longer to fly west than east?
It can take five hours to go west-east from New York(NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon know as the jet(喷射) stream. The jet stream is a very high altitude wind which always blows from the west to the east across the Atlantic. The planes movement a constams air speed thus go faster in the west-east direction when the air moving with the wind than in the opposite direction.
2 What would happen if the gravity on Earth was suddenly turned off?
Supposing we could magically turn off gravity. Would buildings and other structures float away? What happened would depend on how strongly the things were attached to the Earth. The Earth is moving at quite a speed moving at over a thousand miles per hour. If you turn something round your head on a string, it goes around in a circle until you let go of the strong go of the string. Things not attacked to the Earth would fly off in a straight line . People in buildings would suddenly shoot  upwards at a great speed until they hit the ceiling. Most things would fly off into space.

1.

What information coa we get from the first passage?

A.

tis the iet stoomn that affeets how fast airplanes fly.

B.

Planes go slower when they are moving with the wind.

C.

It takes more time to fly from NY to London than from London to NY.

D.

The jet stream always blows from the east to the west across the Atantic.

2.

The word"shoot"underlined in the 2nd passage probably means"".

A.

send for

B.

move quickly

C.

come out

D.

grow quickly

3.

It can be interred that without gravity.

A.

buildings and other structures would float away

B.

trees and buildings would not so easily fly off

C.

something around your head would not float away

D.

everything outside buildings would fly off into space

4.

Where can wemost probably read this text?

A.

In s research paper

B.

In a tort story.

C.

In a travel magazine.

D.

In a student's book.

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On May 23,1989, Stefania Follini came out from a cave at Carlsbad, New Mexico. She hadn’t seen the sun for eighteen and a half weeks. Stefania was in a research program, and the scientists in the program were studying body rhythms(节奏). In this experiment Stefania had spent 130 days in a cave, 30 feet in depth.
During her time in the cave, Stefania had been completely alone except for two white mice. Her living place had been very comfortable, but there had been nothing to tell her the time. She’d had no clocks or watches, no television or radio. There had been no natural light and the temperature had always been kept at 21℃.
The results were very interesting. Stefania had been in the cave for over four months, but she thought she had been there for only two. Her body clock had changed. She hadn’t kept to a 24-hour day, she had stayed awake for 20-25 hours and then had slept for 10 hours. She had eaten fewer meals and had lost 171bs in weight as a results! She had also become rather depressed(抑郁).
How had she spent her time in the cave? As part of the experiment she’d done some physical and mental tests. She’d recorded her daily activities and the results of the tests on a computer. This computer had been specially programmed for the project. Whenever she was free, she’d played cards, read books and listened to music. She’d also learned French from tapes.
The experiment showed that our body clocks are affected by light and temperature. For example, the pattern of day and night makes us wake up and go to sleep. However, people are affected in different ways. Some people wake up naturally at 5:00 am, but others don’t start to wake up till 9:00 or 10:00 am. This affects the whole daily rhythm. As a result, the early risers, on the other hand, are tired during the day and only come to life in the afternoon or evening!
1. Stefania stayed in the cave for a long time because ______.
A. she was asked to do research on mice
B. she wanted to experience loneliness
C. she was the subject of a study
D. she needed to record her life
2. What is a cause for the change of Stefania’s body clock?
A. Eating fewer meals.
B. Having more hours of sleep.
C. Lacking physical exercise.
D. Getting no natural light.
3. Where does the text probably come from?
A. A novel.   B. A news story.  C. A pet magazine.   D. A travel guide.

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Imagine,one day,getting out of bed in Beijing and being at your office in Shanghai in only a couple of hours,and then,after a full day of work,going back home to Beijing and having dinner there.
Sounds unusual,doesn't it? But it's not that unrealistic,with the development of China’s high—speed railway system.And that’s not a11.China has an even greater high—speed railway plan—to connect the country with Southeast Asia,and eventually Eastern Europe.
China is negotiating to extend its own high·-speed railway network to up to 17 countries in 1 0 to 15 years,eventually reaching London and Singapore.
China has proposed three such projects.The first would possibly connect Kunming withSingapore via Vietnam and Malaysia.Another could start in Urumqi and go through Kazakhstan and Uzbekistan,and possibly
to Germany.The third would start in the northeast and go north through Russia and then into Western Europe.
If China’s plan for the high-speed railway goes forward,people could zip over from London to Beiling in under two days.
The new system would still follow China’s high—speed railway standard.And the trains would be able to go 346 kilometers an hour,almost as fast as some airplanes.
China’s bullet train(高速客车),the one connecting Wuhan to Guangzhou,already has the
World’s fastest average speed.It covers 1,069 kilometers in about three hours.
Of course,there are some technical challenges to overcome.There are so many issues that need to be settled,such as safety,rail gauge(轨距),maintenance of railway tracks.So,it’s important to pay attention to every detail.
But the key issue is really money.China is already spending hundreds of billions of yuan on
domestic railway expansion.
China prefers that the other countries pay in natural resources rather than with capital
investment.Resources from those countries could stream into China to sustain development.
It’11 be a win-win project. For other countries,the railway network will definitely create more opportunities for business,tourism and so on,not to mention the better communication among those countnes.
For China,such a project would not only connect it with the rest of Asia and bring some much-needed resources,but would also help develop China’s far west.We foresee that in the coming decades,millions of people will migrate to the western regions,where the land is empty and resources unused.With high-speed trains,people will set up factories and business centers in the west once and for a11.And they’11 trade with Central Asian and Eastern European countries.
1.China’s new high-speed railway plan will be a win-win project because ____________.
A.China will get much-needed resources and develop its western regions
B.China and the countries involved will benefit from the project in various ways
C.China will develop its railway system and communication with other countries
D. the foreign countries involved will develop their railway transportation,business and tourism
2.According to the passage,the greatest challenge to the new high-speed railway plan is____________.
A.technical issues    B.safety of the system
C.financial problems  D.maintenance of railway tracks
3.Which of the following words best describes the author’s attitude towards China’s high-speed
railway plan?
A.Critical.    B.Reserved.    C.Doubtful     D. Positive.
4.Which of the following might be the best title for the passage?
A.New Railway Standards    B.Big Railway Dreams
C.High—speed Bullet Trains D.International Railway Network

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The term “multitasking” originally referred to a computer's ability to carry out several tasks at one time. For many people, multitasking has become a way of life and even a key to success. In fact, some excellent mental aerobic exercises (大脑训练) involve engaging the brain in two or more challenging activities at a time. Although checking e-mail while talking on a phone and reading the newspaper may be second nature for some people, many times multitasking can make us less productive, rather than more. And studies show that too much multitasking can lead to increased stress, anxiety and memory loss.
In order to multitask, the brain uses an area known as the prefrontal cortex (前额叶脑皮层). Brain scans of volunteers performing multiple tasks together show that as they shift from task to task, this front part of the brain actually takes a moment of rest between tasks. You may have experienced a prefrontal cortex “moment of rest” yourself if you've ever dialed (拨电话) a phone number and suddenly forgotten who you called when the line is answered. What probably occurred is that between the dialing and the answering, your mind shifted to another thought or task, and then took that “moment” to come back. Research has also shown that for many volunteers, job efficiency (效率) declines while multitasking, as compared to when they perform only one task at a time.
Multitasking is easiest when at least one of the tasks is habitual, or requires little thought. Most people don' t find it difficult to eat and read the newspaper at the same time. However, when two or more attention-requiring tasks are attempted at one time, people sometimes make mistakes.
We often don't remember things as well when we're trying to manage several details at the same time. Without mental focus, we may not pay enough attention to new information coming in, so it never makes it into our memory stores. That is one of the main reasons we forget people's names—even sometimes right after they have introduced themselves. Multitasking can also affect our relationships. If someone checks their e-mail while on the phone with a friend, they may come off as absent-minded or disinterested. It can also cause that person to miss or overlook key information being passed on to them.
1. Why are some mental aerobic exercises designed to engage people in multitasking?
A. To make them more productive.                
B. To reduce their stress and anxiety.
C. To develop their communication Skills.         
D. To help them perform daily tasks more easily.
2. According to Paragraph 2, why may a person suddenly forget who he has called?
A. He may have his prefrontal cortex temporarily damaged.    
B. He is probably interrupted by another task.
C. He is probably not very familiar with the person he has called.    
D. He may need a rest between dialing and speaking.
3. People tend to make mistakes when       .
A. they perform several challenging tasks at a time 
B. new messages are processed one after another    
C. their relationships with others are affected       
D. the tasks require little thought
4. What is the main idea of the passage?
A. Multitasking has become a way of life.
B. Multitasking often leads to efficiency decline.
C. Multitasking exercises need to be improved.
D. Multitasking enables people to remember things better.

来源:2010年普通高等学校招生统一考试——英语(浙江卷)
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