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(zhuǎn)) 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.
1.The experiment held in Japan proved that _______.
A. the participants kept readjusting their direction of walking
B. all 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
2.The underlined word “subject” in Para. 1 refers to ________.
A. a person with a functional imbalance
B. a person chosen to be studied in an experiment
C. the subject one studies at school
D. the direction of walking
3.The purpose of writing the article is to ________.
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
1.A
2.B
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！
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(diào)整行走的方向，選A
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
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
應(yīng)用題天天練四川大學出版社系列答案科目：高中英語 來源： 題型：閱讀理解
Professor Barry Wellman of the University of Toronto in Canada has invented a term to describe the way many North Americans interact(互動)these days.The term is “networked individualism”.This concept is not easy to understand because the words seem to have opposite meanings.How can we be individuals(個體)and be networked at the same time?You need other people for networks.
Here is what Professor Wellman means.Before the invention of the Internet and e-mail,our social networks included live interactions with relatives,neighbors,and friends.Some of the interaction was by phone,but it was still voice to voice,person to person,in real time.
A recent research study by the Pew Internet and American Life Project showed that for a lot of people,electronic interaction through the computer has replaced this person-to-person interaction.However,a lot of people interviewed for the Pew study say that’s a good thing.Why?
In the past,many people were worried that the Internet isolated(孤立)us and caused us to spend too much time in the imaginary world of the computer.But the Pew study discovered that the opposite is true.The Internet connects us with more real people than expected—helpful people who can give advice on careers,medical problems,raising children,and choosing a school or college.About 60 million Americans told Pew that the Internet plays an important role in helping them make major life decisions.
Thanks to the computer,we are able to be alone and together with other people—at the same time!
The underlined phrase “networked individualism”probably means that by using computers people_______.
A.stick to their own ways no matter what other people say
B.have the rights and freedom to do things of their own interest
C.do things in their own ways and express opinions different from other people
D.are able to keep to themselves but at the same time reach out to other people
According to the Pew study,what do many people rely on to make major life decisions?
A.Networks. B.Friends.
C.Phones. D.Parents.
It can be inferred from the Pew study that_______.
A.people have been separated from each other by using computers
B.the Internet makes people waste a lot of time and feel very lonely
C.the Internet has become a tool for a new kind of social communication
D.a lot of people regard the person-toperson communication as good thing
Which would be the best title for this passage?
A.We’re Alone on the Internet.
B.We’re Communicating on the Internet.
C.We’re Alone Together on the Internet.
D.We’re in the Imaginary World of the Internet.
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科目：高中英語 來源： 題型：閱讀理解
Jamaican sprinter (短跑選手) Usain Bolt plans to send a message to rival Tyson Gay by breaking the world 100m record in the London Grand Prix on Friday.
Bolt, who won gold in the 100m, 200m and 4*100m relay in record times at the Beijing Olympics last year, is determined to use the Crystal Palace event to crush the morale (士氣) of his main rival for gold at next month’s World Athletics Championships in Berlin.
The 22-year-old is slowly returning to peak form after posting 19.59 sec for the 200m in Lausanne earlier this month and clocking a time of 9.79 sec over 100m in cold, rainy conditions in Paris.
Despite Bolt’s impressive times, Gay still believes he has the beating of the Jamaican. But Bolt insists there is no one in the sport who scares him and he will prove the point in south London this weekend.
Although Bolt believes he is only running at 85 percent at the moment while he recovers from injuries suffered in a recent car crash in Jamaica, he sees no reason why he can’t break his world record 100m time of 9.69 seconds.
However he won’t get the chance to take on Gay in the 100m in London as the American is only running in the 200m, which Bolt is not competing in, so he will have to settle for underlining his own ability.
“You never know what is possible. I will give my best either way. My friends are saying I’m bringing the rain wherever I go but we will see on Friday.”
While Bolt would love to make a big impact in London, he knows the main event is the World Championships.
“The London Grand Prix will show me where I’m at and what I need to do. After, we can analyse what I need to do ahead of the World Championships.”
According to the passage, Bolt competed and will compete in the following event. Which of them is arranged in time order?
a. Lausanne athletics gold league matches b. Beijing Olympic Games
c. Paris athletics gold league matches d. World Athletic championships
e. London grand Prix
A. b-c-a-e-d
B. b-c-a-d-e C. b-a-c-e-d D. b-a-c-d-e
What does the underlined phrase “take on” mean in paragraph 6?
A. employ B. compete against C. accept D. develop
Which of the following is true?
A. Jamaican sprinter Usain Bolt broke the world 100m record in the London Grand Prix on Friday.
B. Bolt will not compete in the 200m in London because of Gay’s impressive times.
C. Bolt won 3 gold medals at the Beijing Olympic Games at the age of 22.
D. Bolt suffered a car crash in Jamaica recently.
What can we learn from the last two paragraphs?
A. Bolt is expecting the London Grand Prix.
B. Bolt thinks the world Championships is more important.
C. Bolt made a big difference in the London Grand Prix.
D. Bolt is not confident in his success in the London Grand Prix.
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科目：高中英語 來源：甘肅省嘉峪關(guān)市第一中學2010屆高三一�？荚囉⒄Z試題 題型：閱讀理解
The Internet is a way of life for US college students, with research showing them to be one of the most connected groups.
A recent study by Harris Interactive and 360 Youth found that 93 percent of American college students visit the Internet, and this market is expected to grow from 15.2 million in 2003 to 16.4 million in2007.
That is slow but could be the result of the already high number of college Internet users.
About 88 percent of American college students own a computer, and more than half have broadband connections. Furthermore, 76 percent own cell phones and 36 percent use their mobile devices to visit the Internet.
Study findings are that 42 percent go online mainly to communicate socially, and 72 percent of college students check emails at least once a day, with 66 percent using at least two email addresses.
The most popular online social activity is forwarding messages to friends or family, with 37 per cent of college students saying they do so.
The study also looked beyond the Internet surfing habits and into the buying habits of this group, and found them responsible for more than US＄210 billion in sales last year alone.
College students have learned how to spend their money, with 93 per cent saying low prices were important when shopping.
The study also showed that 65 percent make loan payments, 41 percent of freshmen have a credit card; and 79 percent of seniors have a credit card.
A significant number of charges on those credit cards are likely to be for entertainment and leisure expenses.
45. College students in the US, as this passage shows, _______
A. don’t have to learn their lessons in their classroom
B. spend too much time visiting the Internet
C. lead an exciting life by visiting the Internet
D. waste much time visiting the Internet
46. From the fourth paragraph we can find that in the US_______.
A. most college students are from rich families
B. college students can have a computer from their college
C. cell phones will take the place of computers in college
D. mobile phones make Internet life easy for college students
47. To communicate with friends, nearly half of the college students use_______
A. letters B. e-mails C. telephones D. telegraph
48. By using the Internet, college students in the US can do the following except _______.
A. reading newspapers B. chatting with friends
C. buying goods D. going swimming
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About 45 percent of Americans don’t get enough sleep, according to a recent survey. However, the benefits of getting enough sleep far outweigh the thrill of watching TV for one more hour or surfing the web. Getting a better night’s sleep will help you lose or keep your weight more effectively. Try these simple steps to improve your quality of sleep.
Take time to relax
So many of us go-go-go until it’s time for bed, but it’s important to take time to slow down and relax before sleeping. Do relaxing things, such as listening to soothing (撫慰的) music or deep breathing. Avoid stimulating (刺激的) activities such as writing e-mails, talking on the phone and watching TV. Some guidelines (指導方針): no e-mail after 8 p.m. and no TV or phone calls after 9 p.m..
Darker is better
Your body regulates your sleep cycle in response to the presence and absence of light, so dim the lights as evening approaches. Try getting ready for bed by candlelight. When you’re ready to sleep, make sure your room is as dark as possible.
Put your thoughts to bed
We all need time to process our day, but bed is not the place to do it if you want to sleep well. Take 10 to 15 minutes to record your thoughts in a journal. This effective technique will capture what’s in your mind so you don’t lie awake. Tell yourself you’re putting your thoughts to bed so that you can go to bed.
No sugar or alcohol before bed
These may wake you up. If you need a snack before bed, make it protein.
Try to get more sleep
Get an extra hour or two of sleep every night for a week and see how you feel. You’ll notice the difference!
【小題1】The purpose of writing this text is to ________________________.
| A．share some ways to slow down and relax before sleeping |
| B．guide readers to improve their quality of sleep |
| C．tell readers the importance of getting a good night’s sleep |
| D．publish the results of a recent survey on quality of sleep |
| A．we should keep our bedrooms in strong light before going to bed |
| B．writing a diary may excite us and influence our sleep |
| C．we should never get up later on weekends than we do on weekdays |
| D．candlelight is a good choice for our bedrooms when we’re getting ready to sleep |
| A．inform us of the importance of sleeping |
| B．signal to our body it’s time to sleep |
| C．tell us to stop watching TV for making phone calls |
| D．tell us not to do stimulating activities |
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科目：高中英語 來源：2013屆江西高樟豐宜四校高二下學期期末聯(lián)考英語試卷（解析版） 題型：閱讀理解
They may be just passing your office, computer bag slung (懸掛) over one shoulder. Or they may be sitting in a car outside it, causally tapping away at a laptop. They look like innocent passers-by. In fact, they are stealing your corporate secrets.
Drive-by hacking is the trendy term given to the practice of breaking into wireless computer networks from outside the buildings that house them. A recent study in the UK, sponsored by RSA Data Security, found that two-thirds of organizations with wireless networks were risking their data in this way. Security experts patrolled (巡邏) several streets in the City of London seeking evidence of wireless networks in operation.
Of 124 that they identified, 83 were sending data without encrypting（加密）them. Such data could readily be picked up by a passer-by armed only with a portable computer, a wireless modem and a few pieces of software that can be freely downloaded from the Internet.
The data could include sensitive company documents containing valuable information. Or they could be e-mail identities and passwords that could be used by hackers to log into corporate networks as if they were legal users.
Most companies using wireless networking technology do not take even the simplest of measures to protect their data. Nearly all wireless network technology comes with some basic security features that need only to be activated (激活) in order to give a minimum level of security, for example, by encrypting the data being passed over the network.
Raymon Kruck, business development manager at Check Point Software, a security technology specialist, believes this could be partly a psychological problem. People see the solid walls of their building as safeguards and forget that wireless networks can extend up to 200 meters beyond physical walls.
Companies without any security at all on their wireless networks make it ridiculously easy for hackers to break in. Switching on the security that comes with the network technology should be automatic. Then there are other basic steps a company can take, says Mr. Kruck, such as changing the passwords on the network from the default (默認) setting.
Companies can also install firewalls, which form a barrier between the internal network and the public Internet. They should also check their computer records regularly to spot any abnormal activity, which might betray the presence of a hacker.
1.According to the study sponsored by RSA Data Security, two thirds of the subjects _______.
A. had most of their company data stolen
B. depended on wireless computer networks
C. were exposed to drive-by hacking
D. were unaware of the risk of wireless hacking
2.Which of the following is NOT considered in the study?
A. The number of computer hacking incidents.
B. The number of wireless computer networks identified.
C. The way in which data are sent and received.
D. The way in which data are hacked and stolen.
3.Most wireless network technology has_________.
A. data encryption program
B. password security programs
C. illegal-user detection
D. firewall
4.Raymond Kruck most probably agrees that wireless network security involves ________.
A. wireless signal administration
B. changes in user’s awareness
C. users’ psychological health
D. stronger physical walls
5.The passage is most likely to be seen in a __________
A. book review B. science fiction C. textbook D. computer magazine
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