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 (滿腹經(jīng)綸, 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 (腸道), 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 (自閉癥) --- 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 (療法).
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.
【小題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.a(chǎn)nxious | 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 |
【小題1】C
【小題2】B
【小題3】B
【小題4】A
【小題5】D
解析試題分析:文章介紹Byron Robinson 的理論說,人的大腦和肚子各有一個大腦,接下來通過一些短語和實驗來證明這種說法是有道理的,因此可以通過改變飲食改變?nèi)说那榫w。
【小題1】推理題:根據(jù)文章第一段的句子:Interestingly, in Chinese culture, thoughts are also related to the belly in phrases and idioms like fugao (腹稿, a draft), manfu jinglun (滿腹經(jīng)綸, a bellyful of ideas), and yiduzi weiqu (一肚子委屈, a bellyful of complaints).可知作者用中國文化中肚子和大腦有關(guān)的詞來證明Byron Robinson的理論還是有一些道理的,選C。
【小題2】推理題:文章第二段提到Byron Robinson 的理論說:人的大腦和肚子各有一個大腦,第二段提到一些此類相關(guān)的詞匯,所以活似想證明這個說法,選B
【小題3】猜詞題:根據(jù)第四段的句子:scientists fed timid mice stomach bacteria from mice that were more active and daring.可知是兩種老鼠,一種是膽小的,一種是積極的,膽子比較大的,而這句話提到timid,所以是和膽大的老鼠對比,選B
【小題4】細(xì)節(jié)題:從倒數(shù)第三段的句子:The brain-and-gut connection also works in the opposite way. Scientists studied children with autism (自閉癥) --- a mental illness that makes people unable to socialize with others --- and found that they also have a lot of stomach problems. 可知自閉癥的孩子會有胃部不適的問題,所以選A
【小題5】推理題:根據(jù)文章最后一段的句子: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.
可知飲食的改變可以改變?nèi)说那榫w,選D
考點:考查科普類短文
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科目:高中英語 來源: 題型:閱讀理解
Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation?
UBC Professor Simard explains how trees are much more complex than most of us ever imagined. Although Charles Darwin thought that trees are competing for survival of the fittest, Simard shows just how wrong he was. In fact, the opposite is true: trees survive through their co-operation and support, passing around necessary nutrition "depending on who needs it".
Nitrogen (氮) and carbon are shared through miles of underground fungi (真菌)
networks, making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons (神經(jīng)元) in our brains, and when one tree is destroyed, it affects all.
Simard talks about "mother trees", usually the largest and oldest plants on which all other trees depend. She explains how dying trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow. When humans cut down "mother trees" with no awareness of these highly complex "tree societies" or the networks on which they feed, we are reducing the chances of survival for the entire forest.
"We didn't take any notice of it" Simard says sadly. "Dying trees move nutrition into the young trees before dying, but we never give them chance." If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.
【小題1】The underlined sentence "the opposite is true" in Paragraph 2 probably means that trees .
A.compete for survival |
B.protect their own wealth |
C.depend on each other |
D.provide support for dying trees |
A.look the largest in size in the forest |
B.pass on nutrition to young trees |
C.seem more likely to be cut down by humans |
D.know more about the complex "tree societies" |
A.how "tree societies" work |
B.how trees grow old |
C.how forestry industry develops |
D.how young trees survive |
A.Old Trees Communicate Like Humans |
B.Young Trees Are In Need Of Protection |
C.Trees Are More Awesome Than You Think |
D.Trees Contribute To Our Society |
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科目:高中英語 來源: 題型:閱讀理解
Bananas are one of the world’s most important food crops. They are also one of the most valuable exports. Bananas do not grow from seeds. Instead, they grow from existing plants. Bananas are threatened by disease because all the plants on a farm are copies of each other. They all share the same genetic weaknesses. For example, the Cavendish banana is most popular in North American and European markets. However, some kinds of fungus organisms easily infect the Cavendish. Black Sigatoka disease affects the leaves of Cavendish banana plants. The disease is controlled on large farms by putting chemicals on the plants’ leaves. Farmers put anti-fungal chemicals on their crops up to once a week.
Another fungal disease is more serious. Panama disease attacks the roots of the banana plants. There is no chemical treatment for this disease. Infected plants must be destroyed. Panama disease has affected crops in Southeast Asia, Australia and South Africa. There is concern that it may spread to bananas grown in the Americas. This could threaten an important export product for Central and South America.
The International Network for the Improvement of Banana and Plantain supports research on bananas. The group has headquarters in France and other offices in the major banana-growing areas of the world. The group says that more research must be done to develop improved kinds of bananas. The group says that fungal diseases mainly affect only one kind of banana. In fact, there are five hundred different kinds of bananas. Food and Agriculture Organization of the United Nations has said that the Cavendish banana represents only 10% of world production.
The U. N. agency says farmers should grow different kinds of bananas. This protects against diseases that affect only one kind. Experts warn that disease may cause the Cavendish banana to disappear. This happened earlier to another popular banana because of its genetic weakness against disease.
【小題1】What does this passage mainly tell us?
A.Bananas are the world’s most important food crops. |
B.The risk to a popular banana shows need to grow other kinds. |
C.There are five hundred different kinds of bananas. |
D.How to grow bananas in different countries. |
A.they grow from seeds |
B.they are one of the most valuable exports |
C.the only way to prevent it is to put chemicals on their leaves |
D.they have genetic weaknesses against disease |
A.doesn’t belong to fungal disease |
B.a(chǎn)ffects the leaves of banana plants |
C.destroys bananas more seriously than Black Sigatoka disease |
D.has spread to bananas all over the world |
A.the center of the group is in the US |
B.the Cavendish banana covers only a small part of the yield of bananas |
C.the key to solving the disease is to research all kinds of bananas |
D.each fungal disease affects five hundred different kinds of bananas |
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科目:高中英語 來源: 題型:閱讀理解
A blind baby is doubly handicapped. Not only is it unable to see, but because it cannot receive the visual stimulus(刺激)from its environment that a sighted child does, it is likely to be slow in intellectual development. Now the ten-month old son of Dr. and Mrs. Dennis Daughters is the subject of an unusual psychological experiment designed to prevent a lag(滯后)in the learning process. With the aid of a sonar-type electronic that he wears on his head, infant(嬰兒) Dennis is learning to identify the people and objects in the world around him by means of echoes(回聲).
The device is an improvement of the “Sonicguide”, an instrument produced by Telesensory Systems, Inc., of Palo Alto, Calif, and used by blind adults in addition to a smart or guide dog. As adapted for Dennis, it consists of a battery-powered system about the size of a half dollar that is on a headgear. A transmitter sends out an ultrasonic(超聲的) pulse that creates an 80 degree cone of sound at 6 feet. Echoes from objects within the cone are perceived (felt) as sounds that vary in pitch(音調(diào)) and volume(音量) with the size and distance of the object.
The closer an object is, the lower the pitch, and the larger the object, the louder the signal. Hard surfaces produce a sharp ping, while soft ones send back signals with a slightly fuzzy quality. An object slightly to the right of Denny’s sends back a louder sound to his right ear than to the left. Thus , by simply moving his head right and left and up and down, he can not only locate an object but also get some notion of its shape and size, thanks to the varying qualities of sounds reaching his ears as the cone of ultrasound(超聲波) passes its edges. Dennis likes to use the device to play a kind of peek-a-boo with his mother. Standing on her knee and facing her directly, he receives a strong signal in both ears. By turning his head away, he makes her seem to disappear. “From the first time he wore it,” says Mrs. Daughters, “it was like a light going on in his head.”
What remains to be determined is how well the device will help Dennis cope with his surroundings as he begins to walk and venture further into his environment.
Meanwhile, Telesensory, Inc, is working on the development of sonar(聲納) device with somewhat the same sensitivity as Dennis’s for use by school-age children.
【小題1】Dr. and Mrs. Daughters’ research is directed to ________.
A.helping the blind to see and learn as well as others |
B.benefiting the learning process of blind children |
C.solving blind children’s psychological problems |
D.finding out how children develop intellectually |
A.he already lags behind the sighted children |
B.he leads a life as normal as any other children |
C.he is at the early stage of the learning process |
D.he has the aid of a sonar-type electronic device |
A.Its first design was designed for blind adults. |
B.Its battery is as small as a half-dollar coin. |
C.It is functionally similar to a sane and guide dog. |
D.It has been improved by Telesensory Systems, Inc. |
A.the edge of an object |
B.the edge of the device |
C.the boundary of Dennis’ movement |
D.the boundary of the sound pitch. |
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科目:高中英語 來源: 題型:閱讀理解
Many people think of the brain as a mystery. They don't know much about intelligence and how it works. When they do think about what intelligence is, many people believe that a person is born smart, average, or dumb — and stays that way in the whole life. But new research shows that the brain is more like a muscle — it changes and gets stronger when you use it. And scientists have been able to show just how the brain grows and gets stronger when you learn.
Everyone knows that when you lift weights, your muscles get bigger and you get stronger. A person who can't lift 20 pounds when he/she starts exercising can get strong enough to lift 100 pounds after working out for a long time. That's because the muscles become larger and stronger with exercise. And when you stop exercising, the muscles shrink and you get weaker. That's why people say “Use it or lose it!”
But most people don't know that when they practice and learn new things, parts of their brain change and get larger a lot like muscles do when they exercise. Inside the cortex (皮層) of the brain are billions of tiny nerve cells, called neurons. The nerve cells have branches connecting them to other cells in a complicated network. Communication between these brain cells is what allows us to think and solve problems. When you learn new things, these tiny connections in the brain actually multiply and get stronger. The more you challenge your mind to learn, the more your brain cells grow. Then, things that you once found very hard or even impossible to do — like speaking a foreign language or doing algebra (代數(shù)) — seem to become easy after learning them for a period of time. The result is a stronger, smarter brain.
Scientists started thinking that the human brain could develop and change when they studied animals' brains. They found out that animals that lived in a challenging environment were more “perspicacious” — they were better at solving problems and learning new things.
【小題1】According to the first paragraph,________.
A.the function of our brain is like that of the muscle |
B.until now it's impossible to explain the brain's mystery |
C.many people believe one's intelligence is naturally determined |
D.one's brain grows stronger as the age increases |
A.using the brain |
B.connecting things in your brain |
C.lifting weights |
D.doing research about the brain |
A.Strong. | B.Smart. | C.Popular. | D.Active. |
A.the differences between animals’ brains and humans’ brains |
B.the relation between human brains and muscles |
C.scientists’ findings about animals’ brains |
D.how to make your brain smarter through self-development |
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科目:高中英語 來源: 題型:閱讀理解
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(靈活的),”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.
【小題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(chǎn) researcher on language learning |
B.a(chǎn)n English native speaker |
C.a(chǎn)n active language learner |
D.a(chǎn) 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 |
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科目:高中英語 來源: 題型:閱讀理解
Cold weather can be hard on pets, just like it can be hard on people. Sometimes owners forget that their cats are just as used to the warm shelter as they are. Some owners will leave their animals outside for a long period of time, thinking that all animals are used to living outdoors. This can put their pet in danger of serious illness. There are things you can do to keep your animal warm and safe.
Keep your pets inside as much as you can when the weather is bad. If you have to take them out, stay outside with them. When you’re cold enough to go inside, they probably are too. If you must leave them outside for a long time, make sure they have a warm, solid shelter against the wind, thick bedding, and plenty of non-frozen water.
If left alone outside, dogs and cats can be very smart in their search for warm shelter. They can dig into snow banks or hide somewhere. Watch them closely when they are left outdoors, and provide them with shelter of good quality. Keep an eye on your pet’s water. Sometimes owners don’t realize that a water bowl has frozen and their pet can’t get anything to drink. Animals that don’t have clean and unfrozen water may drink dirty water outside, which may contain something unhealthy for them.
【小題1】The word shelter in paragraph one means:
A.warm clothes | B.a(chǎn) hiding place | C.proper temperature | D.diet food |
A.They are often forgotten by their owners. |
B.They like to stay in warm places. |
C.They build their own shelters. |
D.They are used to living outdoors. |
A.To keep company. |
B.To keep them from eating bad food |
C.To help them find shelters. |
D.To know when to bring them inside |
A.run short of clean water | B.dig deep holes for fun |
C.dirty the snow nearby | D.get lost in the wild |
A.To solve a problem |
B.To give practical advice |
C.To tell an interesting story |
D.To present a research result. |
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科目:高中英語 來源: 題型:閱讀理解
Wikipedia: The Online Know-It-All
If you want to find out a piece of information about anything, the best place to search for it is Wikipedia. The name “Wikipedia” is from the Hawaiian word wiki, meaning “quick”. This online encyclopedia (百科全書) is written by thousands of people around the world. Anyone with Internet access can write, add or make changes to Wikipedia articles if he or she finds it incorrect or not well written. In this way, people who know a lot about a certain subject can write about it even if they are not university professors. But contributions cannot damage Wikipedia because many experienced editors are watching pages and techies (技術(shù)專家) can write editing programs to keep track of or correct bad edits. Where there are disagreements on how to present facts, editors work together to arrive at an article that fairly represents current expert opinion on the subject.
Wikipedia is quite different from paper-based reference sources in important ways. Unlike printed encyclopedias, it is continually created and updated, with articles on historic events appearing within minutes, rather than months or years.
What’s more, Wikipedia includes articles written in about 285 languages. This fact makes it one of the few websites on the Internet that are truly international. It was started in 2001 by Larry Sanger and Jimmy Wales, as a free online English-language encyclopedia project. Since its creation, it has grown rapidly into one of the largest reference websites, attracting nearly 500 million unique visitors monthly. There are more than 77,000 active contributors working on more than 22,000,000 articles in different languages. As of today, there are 4,396,866 articles in English.
So, if you are looking for some information, why not try Wikipedia? It’s free, multilingual,and informative.
【小題1】According to the passage, what is Wikipedia?
A.A free website encyclopedia. | B.A computer game. |
C.A free encyclopedia in book form. | D.An online university. |
A.Wikipedia only charges users a small fee |
B.Wikipedia catches a wide audience |
C.incorrect editions might do great harm to Wikipedia |
D.it will take long to update the information on Wikipedia |
A.In a story book. | B.In a research report. |
C.In a science magazine. | D.In a travel brochure. |
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科目:高中英語 來源: 題型:閱讀理解
Cyberspace,data superhighway,multimedia,for those who have seen the future,and the linking of computers,televisions and telephones will change our lives for ever.Yet for all the talks of a forthcoming technological utopia,little attention has been given to the implications of these developments for the poor.As for all the new high technology,the West concerns itself with the “how”,while the question of “for whom” is put aside once again.
Economists are only now realizing the full extent to which the communication revolution has affected the world economy.Information technology allows the extension of trade across geographical and industrial boundaries,and transnational corporations take full advantage of it. Terms of trade and exchange, interest rates and money movements are more important than the production of goods.The electronic economy made by information technology allows the haves to increase their control on global markets — with a destructive impact on the have-nots.
For them the result is unstable. Developing countries which rely on the production of a small range of goods for export are made to feel like small parts in the international economic machine. As “futures” are traded on computer screens, developing countries simply have less and less control of their destinies.
So what are the options of regaining control?One alternative for developing countries is to buy in the latest computers and telecommunications. Yet this leads to long-term dependency and perhaps permanent constraints on developing countries’ economies.
Communication technology is generally exported from the US, Europe or Japan;the patents, skills and ability remain in the hands of a few industrialized countries. It is also expensive, therefore imported products and services must be bought on credit usually provided by the very countries whose companies stand to gain.
【小題1】 From the passage we know that the development of high technology is in the interests of________.
A.the rich countries | B.scientific development |
C.the local elites | D.the world economy |
A.international trade should be expanded |
B.the interests of the poor countries have not been given enough consideration |
C.the exports of the poor countries should be increased |
D.communication technology in developing countries should be modernized |
A.Because it enables the developed countries to control the international market. |
B.Because it destroys the economic balance of the poor countries. |
C.Because it violates the national boundaries of the poor countries. |
D.Because it inhibits the industrial growth of developing countries. |
A.hinder their industrial production |
B.cause them to lose control of their trade |
C.force them to reduce their share of exports |
D.cost them their economic independence |
A.positive | B.critical |
C.indifferent | D.tolerant |
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