If English means endless new words, difficult grammar and sometimes strange pronunciation, you are wrong. Haven’t you noticed that you have become smarter since you started to learn a language?
According to a new study by a British university, learning a second language can lead to an increase in your brain power. Researchers found that learning other languages changes grey matter. This is the area of the brain which processes information. It is similar to the way that exercise builds muscles.?
The study also found the younger people learn a second language, the greater the effect is.
A team led by Dr Andrea Mechelli, from University College London, took a group of Britons who only spoke English. They were compared with a group of “early bilinguals” who had learnt a second language before the age of five, as well as a number of later learners.
Scans showed that grey matter density(密度)in the brain was greater in bilinguals than in people without a second language. But the longer a person waited before mastering a new language, the smaller the difference.?
“Our findings suggest that the structure of the brain is changed by the experience of learning a second language,” said the scientists.?
It means that the change itself increases the ability to learn.?
Professor Dylan Vaughan Jones of the University of Wales, has researched the link between bilingualism and maths skills. “Having two languages gives you two windows on the world and makes the brain more flexible(灵活的),”he said. “You are actually going beyond language and have a better understanding of different ideas.”
The findings were matched in a study of native Italian speakers who had learned English as a second language between the ages of two and 34. Reading, writing, and comprehension were all tested. The results showed that the younger they started to learn, the better. “Studying a language means you get an entrance to another world,” explained the scientists.
【小题1】The main subject talked about in this passage is ______.
| A．science on learning a second language |
| B．language can help brain power |
| C．man's ability of learning a second language |
| D．language learning and maths study |
| A．make people believe language learning helps grey matter work well |
| B．prove that one needs more practice when he (she) is learning a language |
| C．to show the importance of using the language when you learn the language |
| D．say language is also a kind of physical labor |
| A．a researcher on language learning |
| B．an English native speaker |
| C．an active language learner |
| D．a person who can speak two languages |
| A．the ability of learning a second language is changing all the time |
| B．there is no difference between a later second language learner and one who doesn't know a second language |
| C．the experience of learning a second language has bad effect on people's brain |
| D．the earlier you start to learn a second language, the higher the grey matter density is |
| A．early learning of a second language helps you a great deal in studying other subjects |
| B．learning a second language is the same as studying maths |
| C．Italian is the best choice for you as a second language |
| D．you’d better choose the ages between 2 and 34 to learn a second language |
【小题1】B
【小题2】A
【小题3】D
【小题4】D
【小题5】A
解析试题分析： 学英语是一件很枯燥乏味的事情吗？英语不仅仅代表了单词，近日研究人员发现，学习外语可以帮助人们更聪明，就像锻炼会促进肌肉的生长一样。
【小题1】主旨大意题。由“According to a new study by a British university, learning a second language can lead to an increase in your brain power.”可知学习外语可以帮助你让大脑更聪明。故选B。
【小题2】细节理解题。学习外语让脑灰质工作更好，就如同锻炼让肌肉发育一样。这是用比较的方法让人们讲述。故选A。
【小题3】推理判断题。哟“who had learnt a second language before the age of five, as well as a number of later learners.”可知bilingua指的是学习两种语言的人，即“双语者”。故选D。
【小题4】细节理解题。由“The study also found the younger people learn a second language, the greater the effect is.”可知越早学习了外语就越会受益。故选D。
【小题5】推理判断题。文章后两段讲了学习外语让你的脑子更聪明，因此在其他许多事情上显得更加得心应手。故选A。
考点：科普类阅读。
永乾教育寒假作业快乐假期延边人民出版社系列答案科目：高中英语 来源： 题型：阅读理解
Against the supposition than forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.
This finding suggests that taking steps to prevent northern forest to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over next several centuries as result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling.
This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat.
Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone(臭氧)levels increased, and ash from the fire fell on faroff sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling.
“We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere.” Scientists tracked the change in amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicated, 0.5 watts per square meter of area burned are soaked_up by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.
【小题1】According to the new findings, taking steps to prevent northern forest fires may ________.
| A．result in a warming climate |
| B．cause the forest fires to occur more frequently |
| C．lead to a longer fire season |
| D．protect the forests and the environment there |
| A．large amounts of greenhouse gases enter the atmosphere |
| B．the levels of ozone which is a type of oxygen increase |
| C．snow on the ground mirrors more sunlight back into space |
| D．ashes from the fire fall on the ice surface and take in more radiation from the sun |
| A．analyze all aspects of how northern fires influence climate |
| B．indicate that forest fires will pollute the atmosphere |
| C．suggest that people should take measures to protect environment |
| D．suggest that the fires will speed up climate warming |
| A．released | B．absorbed | C．created | D．distributed |
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科目：高中英语 来源： 题型：阅读理解
When another old cave is discovered in the south of France，it is not usual news．Rather，it is art ordinary event．Such discoveries are so frequent these days that hardly anybody pays heed to them．However，when the Lascaux cave complex was discovered in 1940，the world was amazed．Painted directly on its walls were hundreds of scenes showing how people lived thousands of years ago．The scenes show people hunting animals，such as bison or wild cats．Other images show birds and，most noticeably，horses，which appear in more than 300 wall images，by far outnumbering all other animals．
Early artists drawing these animals accomplished a monumental and difficult task．They did not limit themselves to the easily accessible walls but carried their painting materials to spaces that required climbing steep walls or crawling into narrow passages in the Lascaux complex．
Unfortunately，the paintings have been exposed to the destructive action of water and temperature changes，which easily wear the images away．Because the Lascaux caves have many entrances，air movement has also damaged the images inside．
Although they are not out in the open air, where natural light would have destroyed them long ago，many of the images have been destroyed and are barely recognizable．To prevent further damage，the site was closed to tourists in 1963，23 years after it was discovered．
【小题1】What can be the best title for the text?
| A．Wild Animals in Art | B．Hidden Prehistoric Paintings |
| C．Exploring Caves Respectfully | D．Determining the Age of French Caves |
| A．discovers | B．watches | C．notices | D．buys |
| A．Birds | B．Bison | C．Horses | D．Wild cats |
| A．It was completely dark inside． |
| B．The caves were full of wild animals． |
| C．Painting materials were hard to find． |
| D．Many painting spaces were difficult to reach． |
| A．temperature changes | B．air movement |
| C．water | D．tourists |
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科目：高中英语 来源： 题型：阅读理解
Reseachers at the University of Kansas say that people can accurately judge 90 percent of a stranger's personality simply by looking at the person’s shoes．“Shoes convey useful information about their wearers，’’the authors wrote in the new study published in the Journal of Research in Personality．
Lead researcher Omri Gillath said the judgments were based on the style，cost，color and condition of someone’s shoes．In the study，63 University of Kansas researchers looked at pictures showing 208 different pairs of shoes worn by the study’s participants.Volunteers in the study were photographed in their most commonly worn shoes，and then filled out a personality questionnaire．
Some of the results were expected：People with higher incomes most commonly wore expensive shoes，and flashier shoes were typically worn by outgoing people．However，some of the more specific results are strange enough．For example，“practical and functional’’shoes were generally worn by more“pleasant"people，while ankle boots were more linked with ‘‘aggressive’’personalities．The strangest of all may be that those who wore‘‘uncomfortable looking” shoes tend to have “calm” personalities. And if you have several pairs of new shoes or take extreme care of them，you may suffer from“attachment anxiety"，spending lots of time worrying about what other people think of your appearance．There was even a political calculation in the mix with more liberal(主张变革的)types wearing“shabbier and less expensive” shoes．
The researchers noted that some people will choose shoe styles to mask their actual personalities，but researchers noted that volunteers were also likely to be unaware that their footwear choices were showing the deep side of their personalities．
【小题1】What does this text mainly tell us?
| A．People’s personalities call be judged by their shoes． |
| B．Shoes convey false information about the wearer． |
| C．People know little about their personalities． |
| D．Shoes Call hide people’s real personalities． |
| A．look at pictures of different shoes |
| B．provide pictures of their shoes |
| C．hand in their commonly worn shoes |
| D．design a personality questionnaire |
| A．Pleasant people like wearing uncomfortable shoes． |
| B．Wealthy people often wear expensive shoes． |
| C．Flahshier shoes are typically worn by outgoing people． |
| D．Aggressive people are likely to weal"ankle boots． |
| A．become a political leader |
| B．have a calm character |
| C．worry about their appearance |
| D．wear strange shoes |
| A．teach how to choose shoes |
| B．describe different personalities |
| C．inform us of a new study |
| D．introduce a research method |
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科目：高中英语 来源： 题型：阅读理解
Back in the early 1900s, American physician Byron Robinson wrote a book proposing an interesting theory: humans actually have two brains --- one in our heads and the other in our stomachs, and the two “communicate” all the time. Interestingly, in Chinese culture, thoughts are also related to the belly in phrases and idioms like fugao (腹稿, a draft), manfu jinglun (满腹经纶, a bellyful of ideas), and yiduzi weiqu (一肚子委屈, a bellyful of complaints).
This may sound a little ridiculous at first. But try to think of a time when you were extremely nervous. Chances are that you also felt uncomfortable in your stomach, didn’t you? This is probably why people use the idiom “butterflies in one’s stomach” to refer to being nervous.
Now scientists from Canada and the US have found that our guts (肠道), if not as bright as our actual brains, are much more than just where we digest the food we eat. They also affect our emotions and even behavior, all thanks to the bacteria in them, reported Scientific American.
In the study, scientists fed timid mice stomach bacteria from mice that were more active and daring. After eating the bacteria, the timid mice grew more energetic and fearless. Sure enough, when bold mice got the bacteria from timid ones, they became more anxious. The mice’s behavior also changed when scientists disturbed the bacteria in their guts by changing their diets and feeding them antibiotics (抗生素).
“If something goes wrong in the gut, that change is reflected in the brain,” Emeran Mayer, a professor at University of California, Los Angeles, told The Huffington Post.
The brain-and-gut connection also works in the opposite way. Scientists studied children with autism (自闭症) --- a mental illness that makes people unable to socialize with others --- and found that they also have a lot of stomach problems. They have fewer types of stomach bacteria and lower totals of a few key bacteria than healthy children.
This research raises the possibility that scientists could treat patients with brain problems simply by feeding them the right food, which would be much more efficient than providing psychological therapy (疗法).
According to CBC News, you can get “good” bacteria that lift your spirits from food like yogurt while “bad” bacteria are usually in high fat and high sugar foods.
【小题1】What is the author’s attitude toward Byron Robinson’s theory of two human brains?
| A．Unsatisfied. | B．Doubtful. | C．Positive. | D．Negative. |
| A．describe the symptoms of nervousness |
| B．suggest a connection between our stomach and our emotions |
| C．hint at the danger of nervous feelings |
| D．encourage people to calm down and relax |
| A．anxious | B．fearless | C．energetic | D．sharp |
| A．people with mental illnesses are more likely to have stomach problems |
| B．the use of antibiotics can turn timid mice into daring ones |
| C．timid mice have fewer types of stomach bacteria than daring mice |
| D．people must consider changing their diets when they feel anxious |
| A．psychological therapy has never worked before for autistic children |
| B．yogurt is the best solution for anxiety problems |
| C．high fat and high sugar foods are responsible for many mental diseases |
| D．diet changes can lead to mood changes |
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科目：高中英语 来源： 题型：阅读理解
The weather is getting hotter. You are thirsty（口渴的） playing basketball or riding home from school. A cold drink may be just the thing. But be careful what you are drinking. Something that looks cool may not be good for your health. There are plenty of “energy drinks” on the market. Most of them have beautiful colors and cool names. The lists on them tell you they are helpful to your health. Sounds great!
But after a careful check you may find that most energy drinks have lots of caffeine(咖啡碱)in them. These drinks are especially aimed at young people, students, busy people and sports players. Makers sometimes say their drinks make you better at sports and can keep you awake. But be careful not to drink too much. Caffeine makes your heart beat fast. Because of this, the International Olympic Committee(IOC)（国际奥委会） has limited its use. Caffeine in most energy drinks is at least as strong as that in a cup of coffee or tea. Possible health dangers have something to do with energy drinks. Just one box of energy drink can make you nervous, have difficulty sleeping and can even cause heart problems. Scientists say that teenagers should be discouraged from taking drinks with a lot of caffeine in them.
【小题1】Which of the following can be the best title of the passage? ______
| A．What’s the Use of Energy Drinks? |
| B．Who Can Drink Energy Drinks? |
| C．What’s that in Energy Drinks? |
| D．Why Can’t We Buy Energy Drinks? |
| A．disliked | B．helped | C．stopped | D．encouraged |
| A．energy drinks are especially aimed at teenagers |
| B．energy drinks are helpful to teenagers’ study |
| C．sports players need to drink a lot of energy drinks |
| D．advertisements are important in getting people to buy energy drinks |
| A．they have beautiful colors and cool names |
| B．they have lots of caffeine |
| C．they can keep them awake and better at sports |
| D．they are said to be helpful to health |
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科目：高中英语 来源： 题型：阅读理解
Hello! My name is Lisa, and I am a lioness. I live on the open grasslands of Africa with my family. Lions living in a group are called a pride.
My father is strong and powerful. He and his cousin are the leaders of our pride. The other members are my mother, her sisters, and their children.
The area where a pride lives is big! We roar (咆哮) to tell each other where we are and to warn strangers to stay away.
Come to meet my new baby brother. His name is Leon. See the spots on his fur? We lions are born spotted or striped (有条纹的). As we grow older, the spots gradually disappear.
Lionesses usually spend their entire lives with their birth pride, but Leon will leave when he is about three years old. He’ll run around with a male (雄性的) friend or relative for a few years until they take over a pride of their own.
But for now, we have lots of fun together. We often play and fight for hours, which can help us practice skills that we will need for hunting.
We lions keep ourselves very clean. Just like a house cat, I clean my fur with my tongue. We clean for each other, too, to show we’re friends.
Lions like to sleep for most of the day. We hunt in the cool evening. Female (雌性的) lions hunt more often than male lions. We work together as a team. At the right moment, we attack and kill our prey. Then we share it. Male lions usually eat first. Females eat next. Baby lions are the last to eat. The smallest one gets the least food.
Since we are full, it’s time to go to find a nice place for a sleep. Bye!
【小题1】From the text, we can learn that Lisa comes from______.
| A．Asia | B．Africa | C．Europe | D．America |
| A．the animal that is hunted |
| B．the animal that is dangerous |
| C．the animal that is powerful |
| D．the animal that is ill |
| A．Lions sometimes clean their fur for each other. |
| B．Lions also develop their skills of hunting by having fun. |
| C．Lions usually hunt for food in the evening. |
| D．Baby lions are often the first to get food in their group. |
| A．doctors | B．political leaders | C．children | D．hunters |
| A．hunts more often than his sisters |
| B．will have spots on his fur for the whole of his life |
| C．will leave his birth pride when he is about three |
| D．will take over his birth pride when his father dies |
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科目：高中英语 来源： 题型：阅读理解
Some people have travelled to Canada while others may have just heard of it . As is known to all, the Canadian red and white maple leaf flag is officially called The National Flag of Canada. The Canadian flag shows a stylized red maple leaf with 11 points on a white background, with red borders down each side. The Canadian flag is twice as long as its width. The white square containing the red maple leaf is the same width as the flag. Canada is a very large country, too. It is the second largest country in the world.By contrast, it has a very small population. There are only about 29 millinon people there. Most Canadians are of British or French origin, and French is an official language as well English. About 45 % of the people are of British origin, that is, they or their parents or grandparents, etc, come from Britain. Nearly 30 % are of French origin. Most of the French-Canadians live in the province of quebec. Over the years people have come to live in Canada from many countries in the world. They are mostly from European countries and also from China, as well as other Asian countries.
However , Canada was not an empty country when the Europeans began to arrive. Canadian-Indian lived along the coast, bythe rivers and lakes and in forests. Today there are only 350,000 Canadian-Indians in the whole country, with their own language. In the far north live the Inuits. There are only 27, 000 Canadian-Inuits. Their life is hard in such a harsh climate.
【小题1】What is the populatin of Quebec?
| A．More than 29, 000.000 |
| B．About 30% of the total population. |
| C．Over 45% of th etotal population |
| D．Less than 30% of the French-Canadians. |
| A．The Canadian flag I stwice as wide as its length. |
| B．Most Indians are now forced to live along the coast. |
| C．Nowadays Inuit still have difficult living conditions. |
| D．Nobody existed when the Europeans began to arrive in Canada. |
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科目：高中英语 来源： 题型：阅读理解
One of the most popular activities enjoyed by Americans is spending time in forests and walking along paths through the country.This activity，called hiking，has led to the creation of paths throughout the United States.
One of the longest is the Appalachian National Scenic Trail.The trail is the first completed part of the National Trails System.The trails system was established by Congress and the president in 1968.The Appalachian Trail is more than 3,400 kilometers long.It starts in the northeastern state of Maine and ends in the southeastern state of Georgia.The trail goes through 14 states.They are Maine，New Hampshire，Vermont，Massachusetts，Connecticut，New York，New Jersey，Pennsylvania，Maryland，West Virginia，Virginia，Tennessee，North Carolina，and Georgia.
The path takes walkers through the Appalachian Mountains.They extend from the Canadian province of Quebec to the southern American state of Alabama.
The Appalachian Mountains are among the oldest on Earth.They first began forming about one thousand million years ago.During the millions of years since then，the mountains were changed and reformed by the forces of water and wind.Ice also changed the mountains，making many of them smaller and digging valleys and lakes among them.Many different kinds of trees grow along the trail.And many different kinds of animals live in the forests along the trail.
Lands along the trail are protected by the federal government and by state governments.Some parts are not protected by the government directly.Instead，they are protected by legal agreements with private owners willing to permit people to walk across their property.
Walkers on the Appalachian Trail pass through some of the great valley systems of the mountains.They can look down into these beautiful valleys and see farms and forests stretching across the land for many kilometers.Farmland in the valleys is rich and productive.And some of the great events in American history took place in the valleys.For example，one of the great battles of the American Civil War was fought in the Shenandoah Valley in Virginia.
【小题1】The Appalachian Trail________.
| A．is more than four thousand three hundred kilometers long |
| B．starts in the northern state of Maine |
| C．goes through more than fourteen states |
| D．ends in the southeastern state of Georgia |
| A．are the first completed part of the National Trails System |
| B．began forming one million years ago |
| C．were changed by natural forces like water，wind and ice |
| D．were around by valleys and rivers and famous for its scenery |
| A．are protected entirely by either the federal government or state governments |
| B．are mainly protected by legal agreements with private owners |
| C．can be visited by travelers freely only under the permission of owners |
| D．are protected by both the federal government and state governments |
| A．The Appalachian Mountains have some great valley systems. |
| B．Farms and grasslands stretch across the valleys for many kilometers. |
| C．One of the American independence battles was fought in the Shenandoah Valley. |
| D．Lakes in the Appalachian Mountains are one of the most beautiful sights. |
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