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People who suffer from astigmatism ______.
A．have an eye difficulty that cannot be corrected by glasses
B．have eyes that are not exactly the right shape
C．have a difficulty that can be corrected by an operation
D．have a curable disease in their eyes
答案
更多“People who suffer from astigmatism ______.A．have an eye difficulty that cannot be correcte”相关的问题
第1题
A．experience
B．react
C．feel pain
D．imagine
第2题
Psychologists now believe that noise has a considerable effect on people's attitudes and behavior. Experiments have proved that in noisy situations(even temporary ones), people would have more anger and less cooperation; In more permanent noisy situations, many people cannot work hard, and they suffer from severe anxiety as well as other psychological problems. Some researchers, who study various aspects of effect of noise in people's mental life, maintain that noise, either temporary noise or permanent noise, often destroy creativity and activity by disturbing people's emotion and make them more easily annoyed and hard to cooperate.
However, psychologists distinguish between "sound" and "noise". "Sound" is measured physically in decibels(分贝). "Noise" cannot be measured in the same way because it refers to the psychological effect of sound and its level of "intensity" depends on the situation. Thus, for passengers at an airport who expect to hear airplanes taking off and landing, there may be a lot of sound, but not much noise(that is, they are not bothered by the noise). By contrast, if you are at a concert and two people behind you are whispering, you feel they are talking noisily even if there is not much sound. You notice the noise because it affects you psychologically.
Both sound and noise can have negative effects, but what is most important is if the person has control over the sound. People walking down the street with earphones, listening to music that they enjoy, are receiving a lot of decibels of sound, but they are probably happy hearing sounds which they control. On the other hand, people in the street without earphones must tolerate a lot of noise which they have no control over. It is noise pollution that we need to control in order to help people live more happily.
According to the passage, people （） .
A.can not complete his work in a noisy situation
B.will suffer from complete deafness because of noise pollution
C.can be psychologically affected by working in very noisy factories
D.may cooperate well in a noisy surrounding
第3题
The findings are based on a German study of almost 700 people who suffered heart attacks. The patients described their activities during the four days before their heart attack. Researchers found that those who had been in traffic were three times more likely to have a heart attack within one hour, compared to those who had not been in traffiC. Most of those in the study had been traveling by car. But some had been on bicycles and others were on buses.
Research shows that people in cars and buses are exposed to ten times the amount of pollutants as people walking on the street. That is largely because they breathe in the particles and gasses released from the vehicles in front of them.
Over time, these small particles speed the buildup of a sticky substance in the blooD. This can cause blockages(阻塞) to form. in the arteries(动脉) around the heart and lead to a heart attack.
Other studies have also linked heart trouble to stress, similar to the kind that people face while driving in heavy traffiC. But the researchers of the latest study say they do not know whether the increased heart attack risk was the result of stress or pollution. They suggest it may be a combination of stress, noise and pollution. Experts say the research shows the need fro cleaner vehicles and better city planning.
9.According to the study, which of the following ways is the safest in traffic？
A. Driving a car
B. Walking on the street
C. Taking a bus
D. Riding a bicycle
9.From among the 700 people who suffered heart attacks we learn that ______.
A. those who have been in traffic are three times as many as those who have not
B. those who have been in traffic for more than one hour are most likely to suffer heart attacks
C. the risk of a heart attack is three higher among those who have been in traffic than those who have not
D. Most of the subjects (实验对象) felt uncomfortable during the four days before the attack
9.The particles released from vehicles ______.
A. build up in the blood
B. become blockages in the arteries
C. make the blood more sticky
D. do harm to the heart
9.According to the studies, which of the following is NOT a likely cause of heart attack？
A. Stress
B. Noise
C. Air pollution
D. Traffic accident
9.What suggestion do experts make to lower the risk？
A. Reducing traffic as much as possible.
B. Living away from nose.
C. Planting more trees in the city.
D. Making vehicles clean.
第4题
A.Still
B.Further
C.More
D.Again
第5题
根据以下内容，回答下列各题。
Insure means to protect _51_ a loss of money．Most people can budget their money so that their income will cover expected expenses _52_ food, clothing, housing, and public services．But, there is no way to know _53_ who will suffer a crisis (危机) such as a serious illness, fire, flood, or a car accident．Such crises usually _54_ great expense．Even if people could predict crises, it would be hard to save enough money to _55_ the expenses．Insurance is a system _56_ a company collects money from many individuals and then pays certain expenses whenever one of those insured individuals is faced with a certain crisis．An insurance policy _57_ how much the insurance costs and how much the company will pay when a policy holder is faced with a certain crisis．There are many different kinds of insurance, _58_ hospital, motor-car and fire．Insurance can be rather expensive but most people buy insurance of some kin
D．Insurance is something _59_ people buy and hope they will _60_ need．
51._________
A.for
B.from
C.against
D.with
第6题
For each blank in the following passage, there are four choices given below and marked A, B, C and D. Choose
the one that is most suitable and mark your answer by blackening the corresponding letter on the Answer Sheet.
Smoking, which may be a pleasure for some people, is a serious source of discomfort for their fellows. _51_,
medical authorities express their concern about the effect of smoking _52_ the health not only of those who
smoke but also of those who do not. In fact, non-smokers who must involuntarily inhale (吸入) the air _53_
by tobacco smoke may suffer more than the smokers _54_.
Smoking is prohibited in the theatres and in halls used for showing films _55_ in laboratories _56_ there
may be a fire hazard (危险). Elsewhere, it is up to your good _57_.
I am _58_ asking you to maintain “No-Smoking” in classrooms and seminar rooms.
This will prove that you have the _59_ health in mind, which is very important to a large _60_ of
our students.
__________
A. Still
B. Further
C. More
D. Again
第7题
People who are near-sighted can only see things that are very close to their eyes.' Everything else is not so clear. Many people who do a lot of close work, such as writing, reading and sewing, become near sighted. Then they have to wear glasses in order to see distant (远处的) things clearly.
People who are far-sighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them."
Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle (角度). To prove this to yourself, look at an object out of one eye; then look at the same object out of the other eye. You will find the object's relation to the background (背景) and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.
We should take good care of our eyes ______.
A．only when we cannot see perfectly
B．only when we can see well
C．even if we can see well
D．only when we realize how important our eyes are
第8题
When we see well, we do not think about our eyes very often. (79) It is only when we cannot see perfectly that we realize how important our eyes are.
People who are nearsighted can only see things that are very close to their eyes. Everything else seems blurry (模糊的). Many people who do a lot of close work, such as writing, reading and sewing, become nearsighted. Then they have to wear glasses in order to see distant objects clearly.
People who are farsighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts (白内障). Long ago these people olden became blind. Now, however, it is possible to operate on the cataracts and remove them.
Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle. To prove this to yourself, look at object out of one eye; then look at the same object out of your other eye. You will find the object's relation to the background and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.
We should take good care of our eyes ______.
A．only when we can see well
B．only when we cannot see perfectly
C．even if we can see dell
D．only when we realize how important our eyes are
第9题
请根据以下内容回答下列各题 Insurance (保险)is the sharing of risks. Nearly everyone isexposed to risk of some sort. The house owner, for example, knows that hisproperty can be damaged by fire; the ship-owner knows that his vessel may belost at sea; the breadwinner knows that he may die at any early age and leavehis family poorer. On the other hand, not every house is damaged by fire norevery vessel lost at sea. If these persons, each put a small sum into a pool,there will be enough to meet the needs of the few who do suffer loss. In otherwords, the losses of the few are met from the contributions of the many. Thisis the basis of insurance. Those who pay the contribution are known as insuredand those who administer(管理)the pool of contributionsas insurers. The legal basis of all insurance is thepolicy. This is a printed form. of contract on stout paper of the best quality.It states that in return for the regular payment by the insured of a named sumof money, called the pre- mium(保险费), which is usually paid every year, the insurer will pay a sum ofmoney or compensation for loss, if the risk or event insured against actuallyhappens. The premium for an insurance naturally depends upon how likely therisk is to happen, as suggested by past experience, ff companies fix theirpremiums too high, there will be more to make the premium too low, they willlose money and may even have to drop out of busi- ness. So the ordinary forcesof supply and demand keep premiums at a level satisfactory to both the insurerand the insured. According to the writer, insurance is possible because__________
A.only a small proportion of the insured sufferloss
B.only insured people suffer loss
C.nearly everyone suffers loss
D.everyone at some time suffers loss
第10题
Nowadays, people are very busy. Often, both parents work outside the home. Children are expected to take on more responsibility at home to help their parents. They also have sporting and leisure activities as well as school expectations.
The busyness also adds another factor: the need to use cars to get from one place to another quickly.
Today, society places a lot of emphasis on technology. Computers, DVDs, CDs, television, PlayStations and Xboxes have become major leisure activities, rather than traditional more active pursuits. This has led to a more sedentary lifestyle.
The media provide entertainment and information. (79)Unfortunately, they also promote fast food which fits easily into busy lifestyles. It is much more convenient at times to buy a quick takeaway rather than prepare a meal. The media constantly bombard(轰炸) their audience with "perfect" body images, the need to buy the most fashionable clothes, the most up-to-date computer games, the best places to visit and the best things to do.
Environments vary. We may be exposed to pollution, such as cigarette smoke. This can be harmful to people who suffer from breathing difficulties. (80)Environments where passive smoking is unavoidable make it difficult to lead a healthy life.
Perhaps the important factor influencing healthy lifestyles is motivation, or the desire to be healthy. Any person who wants to be healthy will find a way to be healthy—if he/she is motivated enough!
The passage is mainly about______.
A．benefits of a healthy life style
B．demands of daily life
C．factors affecting a healthy lifestyle
D．a positive approach to healthy living
