A recent experiment held in Japan shows that it is almost impossible for people to walk exactly straight for 60 metres. Tokyo University of Agriculture and Technology found 20 healthy men and asked them to walk as straight as possible to a target 60 metres away at normal speed. Each man had to walk on white paper fixed flat to the floor wearing wet colored socks. The footprints revealed that all walked in a winding rather than a straight line. Researchers found that people readjust the direction of walking every few seconds. The amount of the winding differed from subject to subject. This suggests that none of us can walk in a strictly straight line. We walk in a winding way mainly because of a slight structural or functional imbalance of our limbs (四肢). Although we may start walking in a straight line, several steps afterwards we have changed direction.
Eyesight helps us to correct the direction of walking and leads us to the target. Your ears also help you walk. After turning around a lot with your eyes closed, you can hardly stand still, let alone walk straight.
It’s all because your ears help you balance. Inside your inner ear there is a structure which contains liquids. On the sides of the organ are many tiny hair-like structures that move around as the liquid flows. When you spin (旋轉) the liquid inside also spins. The difference is that when you stop, the liquid continues to spin for a while. Dizziness is the result of these nerves in your ear. When you open your eyes, although your eyesight tells you to walk in a straight line, your brain will trust your ears more, thus you walk in a curved line.
【小題1】The experiment held in Japan proved that _______.
A.the participants kept readjusting their direction of walking |
B.a(chǎn)ll the participants had a good sense of direction |
C.the experiment was done in different ways |
D.none of the participants finished the 60 metres |
A.a(chǎn) person with a functional imbalance |
B.a(chǎn) person chosen to be studied in an experiment |
C.the subject one studies at school |
D.the direction of walking |
A.prove that ears and eyes help us to walk straight |
B.explain why we can hardly walk in a strictly straight line |
C.point out the importance of noticing everyday science |
D.give background information about a latest study |
【小題1】A
【小題2】B
【小題3】B
解析試題分析:文章介紹人們幾乎不可能一直走直線,并解釋了為什么我們不能走直線,不管你是否相信,我們行走時,依靠的是眼睛和耳朵的幫助!
【小題1】細節(jié)題:從第一段的句子:Researchers found that people readjust the direction of walking every few seconds. 可知參與者一直在調整行走的方向,選A
【小題2】猜詞題:從第一段的句子:Tokyo University of Agriculture and Technology found 20 healthy men and asked them to walk as straight as possible to a target 60 metres away at normal speed.可知東京大學找了20個健康的人,讓他們以正常的速度盡可能的走60米直線,下文說The amount of the winding differed from subject to subject.彎曲的數(shù)量是人和人是不一樣的,所以subject是參加實驗的人,選B
【小題3】主旨題:文章的第一段介紹人們幾乎不可能一直走直線,二三段解釋了為什么我們不能走直線,選B
考點:考查科普類短文
科目:高中英語 來源: 題型:閱讀理解
What makes humans smarter than other animals? We’ve got a bigger brain, of course. But when it comes to brains, is bigger always better?
Traditionally, scientists have thought that humans’ superior intelligence derived(源于)mostly from the fact that our brains are three times bigger than those of our nearest living relatives, chimpanzees. People even used to believe that because men have slightly larger brains than women that men are smarter.
This, however, is not the truth. Scientists at University College London in the UK have found that brain organization, and not brain size, is the key to the superiority of human intelligence, reported Live Science.
Through millions of years of evolution, our ancestors were constantly pushed to get smarter so that they could meet the demands of new environments. However, holding this growing intelligence in increasingly large brains was not the best choice because bigger brains require more energy to power. “This is when reorganization may come into play, ”said Christophe Soligo, a member of the London research team.
In the study, scientists looked at the brains of 17 species of primates(靈長目動物), including monkeys, apes and humans. They found that in the process of evolution, brains didn’t keep growing as a whole. Certain regions of the brain grew prior to others in response to species’ needs, and in this way they could make the best use of their limited brain space.
For example, when early humans were struggling to survive, the brain region in charge of using tools and finding food grew in size more than other regions. But in modern times, the prefrontal cortex(前額皮質)—the region in charge of social cognition(認知), moral judgments and goal-directed planning—grew more than the rest of the brain.
Think of the brain as a room. If a big room is poorly organized, it doesn’t necessarily store more stuff than a smaller one.
Paul Manger, professor at the University of the Witwatersrand, South Africa, explains this principle using the example of whales. He told Scientific American: “Whales have big brains, absolutely. But if you look at the actual structure of the brain, it’s not very complex. Brain size only matters if the rest of the brain is organized properly. ”
【小題1】It has recently been found that humans are smarter than the other animals mainly because .
A.they are a species of primates |
B.they have much larger brains |
C.their brain structure is more complex |
D.they were constantly pushed to get smarter |
A.the brain kept growing in size to adapt to new environments |
B.most regions of the brain didn’t change |
C.the prefrontal cortex grew more than the rest of the brain |
D.humans’ brains became increasingly simple so that humans could survive |
A.Gender makes a difference in intelligence. |
B.The size of the brain has nothing to do with intelligence. |
C.Species whose brain is organized properly tend to be smarter. |
D.Larger brains are usually organized better than smaller ones. |
A.by presenting research data |
B.by giving examples |
C.by making a comparison |
D.by analyzing cause and effect |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
(2013·高考浙江卷,C)The baby monkey is much more developed at birth than the human baby.Almost from the moment it is born,the baby monkey can move around and hold tightly to its mother.During the first few days of its life the baby will approach and hold onto almost any large,warm,and soft object in its environment,particularly if that object also gives it milk.After a week or so,however,the baby monkey begins to avoid newcomers and focuses its attentions on“mother”—the real mother or the mothersubstitute(母親替代物).
During the first two weeks of its life warmth is perhaps the most important psychological(心理的)thing that a monkey mother has to give to its baby.The Harlows,a couple who are both psychologists,discovered this fact by offering baby monkeys a choice of two types of mothersubstitutes—one covered with cloth and one made of bare wire.If the two artificial mothers were both the same temperature,the little monkeys always preferred the cloth mother.However,if the wire model was heated,while the cloth model was cool,for the first two weeks after birth the baby monkeys picked the warm wire mothersubstitutes as their favorites.Thereafter they switched and spent most of their time on the more comfortable cloth mother.
Why is cloth preferable to bare wire?Something that the Harlows called contact(接觸)comfort seems to be the answer,and a most powerful influence it is.Baby monkeys spend much of their time rubbing against their mothers’ skins,putting themselves in as close contact with the parent as they can.Whenever the young animal is frightened,disturbed,or annoyed,it typically rushes to its mother and rubs itself against her body.Wire doesn’t “rub” as well as does soft cloth.Prolonged(長時間的)“contact comfort” with a cloth mother appears to give the babies confidence and is much more rewarding to them than is either warmth or milk.
According to the Harlows,the basic quality of a baby’s love for its mother is trust.If the baby is put into an unfamiliar playroom without its mother,the baby ignores the toys no matter how interesting they might be.It screams in terror and curls up into a furry little ball.If its cloth mother is now introduced into the playroom,the baby rushes to it and holds onto it for dear life.After a few minutes of contact comfort,it obviously begins to feel more secure.It then climbs down from the mothersubstitute and begins to explore the toys,but often rushes back for a deep embrace(擁抱)as if to make sure that its mother is still there and that all is well.Bit by bit its fears of the new environment are gone and it spends more and more time playing with the toys and less and less time holding onto its “mother”.
【小題1】Psychologically,what does the baby monkey desire most during the first two weeks of its life?
A.Warmth. | B.Milk. |
C.Contact. | D.Trust. |
A.larger in size |
B.closer to them |
C.less frightening and less disturbing |
D.more comfortable to rub against |
A.Attention. | B.Softness. |
C.Confidence. | D.Interest. |
A.it frequently rushes back for a deep embrace when exploring the toys |
B.it spends more time screaming to get rewards |
C.it is less attracted to the toys though they are interesting |
D.it cares less about whether its mother is still around |
A.give the reasons for the experiment |
B.present the findings of the experiment |
C.introduce the method of the experiment |
D.describe the process of the experiment |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
Fear is an emotion like others such as happiness, anger, hurt, sadness. We need emotions to process information we receive and decide how to respond. Being afraid of fast cars, for example, is something that might protect us from harm. Being afraid of the consequence of a choice may prevent us getting into trouble.
Fears in young children commonly center on certain animals like snakes or big dogs. Fears are caused often because of experiences or ideas expressed by others, and at times, the media. Many normal fears during the early years, like men with beards, or large dogs, disappear with age. Those relating to personal failure and ridicule (嘲笑) remain through adulthood and may need special help to overcome.
Children’s fears are often trivial, but that doesn’t mean they should be ignored. They need to be recognized and accepted as real for that child. Only when we help children understand their fears can they grow normally in their ability to deal with them.
Research shows that as a child grows up, the center of his fears changes a lot. Things like divorce, a teacher who “shouted at me”, people with guns, bullies, big boys, or “making fun of me” top the list of childhood fears.
We can not always prevent these experiences from happening, but it’s essential that children be allowed to freely express their emotions without judgment. Sympathy and a caring listener will help ease the pain of these fears. Read books and stories to your child about children who have experienced similar fears. This helps children talk about their fears and find ways to cope. With all emotions, fears become less of a problem for children as they gain self-confidence and they find that fear is normal and can be dealt with.
【小題1】According to Paragraph 2, we can know that fears in young children_______. .
A.only center on frightening animals | B.a(chǎn)re not born but learned |
C.can make sure of their safety | D.need special help to deal with |
A.small | B.serious | C.harmful | D.common |
A.stop unpleasant experiences happening to children |
B.let children know about the nature of fear |
C.create an environment where there is nothing to fear |
D.develop children’s ability to treat their fear on their own |
A.some childhood fears may have a lasting influence |
B.children should avoid the media to reduce their fear |
C.fears can be judged according to the environment |
D.children with similar fears can communicate easily |
A.How to Overcome Children’s Fears | B.Children’s Fears |
C.The kind of Children’s Fears | D.The Bad Effects of Fears |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
China is going green. In order to reduce air pollution and oil shortages, automobile manufacturers have announced their plans to develop hybrid vehicles (混合燃料汽車) for the Chinese market. Toyota's hybrid car Prius will be ready to drive in China this week. Let's have a look at the new car.
Any vehicle is a hybrid when it combines two or more sources of power. Hybrid cars run off a rechargeable battery and gasoline. Hybrid cars have special engines, which are smaller than traditional gasoline engines. They run at 99 percent of their power when the car is cruising (勻速行駛). A specially designed battery motor provides extra power for running up hills or when extra acceleration is needed.
Step into a Prius, and turn on the engine. The first thing you notice is how much quieter it is than a traditional car. At this point, the car's gasoline engine is dormant (休眠). The electric motor will provide power until the car reaches about 24 km/h. If you stay at a low speed, you are effectively driving an electric car, with no gasoline being used, and no waste gas gives off.
The onboard (車載的) computer makes the decision about when to use a gas engine, when to go electric, and when to use a combination of the two. If you go over 24 km/h, when you step on the gas pedal (油門), you are actually telling the computer how fast you want to go.
The electronic motor recharges automatically using a set of batteries. When driving at high speed, the gasoline engine not only powers the car, but also charges the batteries. Any time you use the brake, the electric motor in the wheels will work like a generator and produce electricity to recharge the batteries. As a consequence, the car's batteries will last for around 200,000 miles.
【小題1】The author writes this passage mainly to________.
A.teach people how to drive a hybrid car |
B.introduce a new kind of “green” car |
C.show how to save their gasoline when driving a car |
D.a(chǎn)nnounce plans to develop hybrid vehicles for China |
A.The hybrid cars reduce air pollution and oil shortages. |
B.The car's gasoline engine doesn't work until it reaches about 24 km/h. |
C.This kind of car is completely controlled by an onboard computer. |
D.A specially designed battery motor provides extra power when needed. |
A.They are powered by both a rechargeable battery and gasoline. |
B.They are much quieter than traditional cars. |
C.They only use 99 percent of their power to run up hills. |
D.They have smaller engines than traditional gasoline ones. |
A.The batteries can be recharged at any time you want. |
B.Using the brake suggests that the gasoline engine should work. |
C.The batteries will last for 200, 000 miles without being recharged. |
D.The gasoline engine charges the batteries as well as powers the car. |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
Animals are considered to be endangered if the species is close to extinction throughout all or most of its environment. Animals become endangered for a variety of reasons.
Some animals become endangered when their habitats contain resources for humans. For example, commercial forest cutting in the Amazon Rainforest has seriously reduced the population of many animal species and lead to the extinction of other groups. Land itself is an important resource to humans since it provides us with living space, and when people replace animal habitats with human habitats, it can lead to larger loss of natural species.
Commercial and industrial operations may reduce land or water for animals and pollute their environment. Due to water pollution, the baiji, a fresh water dolphin native to China, was declared extinct, meaning it’s unlikely the population can recover. Even noise pollution from human activities can lead to the disorder of animal behavior.
Another cause that makes animals become endangered is over-fishing or over-hunting. Over-hunting whales led to near extinction of many species of whales.
The introduction of a non-native species to a habitat may make animals become endangered. The native species may not defend against a new one, and the effects can be dangerous. In Australia, the introduction of the common house cat led to the extinction of the red-fronted parakeet and has seriously damaged the populations of several small animals.
Introduced species can also bring new diseases with them. As a result, animals become endangered. Native animals may not have the power to fight against non-native diseases, and population levels can suffer. Another cause of disease is human-introduced chemicals. The use of DDT is believed to be one of the leading causes in driving the California Condor to near extinction.
When animals become endangered, the entire food chain can be affected. For example, in 2008 disease seriously harmed the honeybee, which is largely responsible for pollinating(授花粉) plants, including many fruits and vegetables. Without their pollination, a very large part of the human diet could be reduced. In fact, if the honeybee should become extinct, our life would be affected and billions of dollars would be lost. Therefore, many people argue that when animals become endangered it is in man’s own self-interest to protect them.
【小題1】The passage is mainly about ______.
A.ways of protecting animals’ habitats |
B.effects caused by species endangerment |
C.dangers of bringing in non-native species |
D.reasons why animals become endangered |
A.The extinction of the whales. |
B.The extinction of the red-fronted parakeet. |
C.The decreasing population of the dolphin. |
D.The effect of the honeybee on the human diet. |
A.Native species are likely to die from the new diseases. |
B.It’s hard for non-native species to survive. |
C.Non-native species will take up more space. |
D.Native species are so powerful for non-native species. |
A.loss of habitat | B.harmful chemicals |
C.forest cutting | D.unfamiliar diseases |
A.humans are to blame for species extinction |
B.small animals mean little to the whole food chain |
C.protection of the honeybee has cost billions of dollars |
D.humans protect animals for the benefit of themselves |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
Everyone has got two personalities-the one that is shown to the world and the other that is secret and real. You don’t show your secret personality when you’re awake because you can control your behavior, but when you’re asleep, your sleeping position shows the real you. In a normal night, of course, people frequently change their positions. The important position is the one that you go to sleep in.
If you go to sleep on your back, you’re a very open person. You normally trust people and you are easily influenced by fashion or new ideas. You don’t like to displease people. So you never express your real feelings. You’re quite shy and you aren’t quite sure of yourself.
If you sleep on your stomach, you are a rather secretive person. You worry a lot and you’re always easily upset. You always stick to your own opinions or judgment, but you don’t raise your hopes too much. You usually live for today not tomorrow. This means that you enjoy having a good time.
If you sleep curled up, you are probably a very nervous person. You have a low opinion of yourself and so you’re often defensive. You’re shy and you don’t normally like meeting people. You prefer to be on your own. You’re easily hurt.
If you sleep on your side, you have usually got a well—balanced personality. You know your strengths and weakness. You’re usually careful. You believe in yourself. You sometimes feel anxious, but you don’t often get sad. You always insist on what you think even if it makes people rather angry.
【小題1】According to the passage, a person, who is not willing to change his mind and hard to deal with, probably sleeps .
A.on his side | B.on his back | C.curled up | D.on his stomach |
A.do things personally. | B.stay alone |
C.keep things secret | D.trust others easily |
A.The people sleeping on their stomachs and those sleeping on his backs. |
B.The people sleeping on their sides and those sleeping curled up. |
C.The people sleeping on their backs and those sleeping on their sides. |
D.The people sleeping curled up and those sleeping on their stomach. |
A.one’s sleeping position has something to do with one’s character. |
B.everyone has got both real and secret personalities. |
C.the position in which one goes to sleep is the most important one. |
D.when awake, one does not show one’s secret personality. |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
Ask someone what they have done to help the environment recently and they will almost certainly mention recycling. Recycling in the home is very important of course. However, being forced to recycle often means we already have more material than we need. We are dealing with the results of that over-consumption in the greenest way possible, but it would be far better if we did not need to bring so much material home in the first place.
The total amount of packaging increased by 12% between 1999 and 2005. It now makes up a third of a typical household’s waste in the UK. In many supermarkets nowadays food items are packaged twice with plastic and cardboard.
Too much packaging is doing serious damage to the environment. The UK, for example, is running out of it for carrying this unnecessary waste. If such packaging is burnt, it gives off greenhouse gases which go on to cause the greenhouse effect. Recycling helps, but the process itself uses energy. The solution is not to produce such items in the first place. Food waste is a serious problem, too. Too many supermarkets encourage customers to buy more than they need. However, a few of them are coming round to the idea that this cannot continue, encouraging customers to reuse their plastic bags, for example.
But this is not just about supermarkets. It is about all of us. We have learned to associate packaging with quality. We have learned to think that something unpackaged is of poor quality. This is especially true of food. But it also applies to a wide range of consumer products, which often have far more packaging than necessary.
There are signs of hope. As more of us recycle, we are beginning to realise just how much unnecessary material are collecting. We need to face the wastefulness of our consumer culture, but we have a mountain to climb.
【小題1】What does the underlined phrase “over-consumption” refer to?
A.Using too much packaging. | B.Recycling too many wastes. |
C.Making more products than necessary. | D.Having more material than is needed. |
A.the tendency of cutting household waste | B.the fact of packaging overuse |
C.the rapid growth of super markets | D.the increase of packaging recycling |
A.helps control the greenhouse effect | B.means burning packaging for energy |
C.is the solution to gas shortage | D.leads to a waste of land |
A.Unpackaged products are of bad quality. | B.Supermarkets care more about packaging. |
C.It is improper to judge quality by packaging. | D.Other products are better packaged than food. |
A.Fighting wastefulness is difficult. | B.Needless material is mostly recycled. |
C.People like collecting recyclable waste. | D.The author is proud of their consumer culture. |
查看答案和解析>>
科目:高中英語 來源: 題型:閱讀理解
Imagine going to sleep then waking up speaking another language. It may sound impossible, but it's actually happened.
The phenomenon(現(xiàn)象)of being able to suddenly speak another language is known as“Xenoglossia”, from the Greek words“xenos”(foreigner)and “glossa”(language).
It once happened to a 13yearold girl from Croatia. After being unconscious(不省人事的)because of a disease for 24 hours in 2010,she woke up speaking fluent German. The girl, who came from the town of Knin in the south of Croatia,was studying German at school but she'd only started recently. Her parents said that she'd been reading German books and watching German TV at home, but that she wasn't fluent in the language.However ,since waking up, she's been able to communicate “perfectly”in German.What's really strange is that she's now unable to speak Croat,her mother language.Doctors at Split's KB Hospital have asked some experts to examine the girl as they try to find out what caused the change.Dr Mijo Milas said,“In earlier times this would have been considered as a miracle(奇跡);we prefer to think that there must be an explanation—it's just that we haven't found it yet.”
In 2007,Matej Kus from Czech became unconscious after a motorbike accident. On waking up 45 minutes later,he could speak fluent English.Matej was only 18 years old at the time, and had just started studying the language and so was at a low level.Peter Waite,Kus's teammate said,“I couldn't believe what I was hearing.It was really clear English.It was unbelievable to hear him talk in unbroken English.”Unluckily,Matej's new language skills didn't last.Two days later, when he recovered fully from the accident, he'd completely forgotten his English.
We still don't know exactly what happened to the two people. Perhaps scientists will discover something new and exciting. But until then, keep studying!
【小題1】According to the passage,what is“Xenoglossia”?
A.That someone becomes unconscious. |
B.That someone speaks a new language in a sudden. |
C.That someone doesn't like his mother language. |
D.That someone is able to speak Greek suddenly. |
A.Having accidents. |
B.Speaking fluent German. |
C.The phenomenon of Xenoglossia. |
D.Being unable to speak. |
A.wanted to know what caused her change |
B.believed she had a talent for language |
C.didn't study German for a long time |
D.didn't like learning German |
A.Matej Kus is now afraid of motorbike racing. |
B.The girl from Croatia lost consciousness for several days. |
C.The girl from Croatia was knocked unconscious in an accident. |
D.Matej Kus could only speak a little English before the accident . |
查看答案和解析>>
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com