题目内容
Some doctors were sent to the front where medical workers were __________.
A. in great need B in desperate need of C needed great D needed in
A
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Healthy Diet“An apple a day keeps the doctor away.” Similarly, if we drink a little more water ever day, we may find that we need to go to the doctor a lot less often. A healthy diet is made up of water and a great many different kinds of foods. We know that healthy foods like fruits, vegetables and fish, are important as they provide us with energy and fibre, without giving us too much fat and sugar. But why is water important?
The human body needs water to survive. Water is important as it carries poisons and waste out of our bodies. However, doctors advise us to drink plenty of water, much more than the small amount we need to stay alive.
Some doctors believe that water is important for our health in all kinds of ways. They believe that a great many illnesses and health problems stars as a result of dehydration—a lack(缺少) of water in the body. Most people are dehydrated at least some of time, although they probably don’t know it. It is surprising to learn that if we feel thirsty, we are already in the first stages of dehydration. In fact, we are advised to drink water before we feel thirsty.
These doctors think that health problems such as headaches, high blood pressure and asthma could be helped if people drink more water. They also believe that drinking more water can help people who are overweight. Water contains no calories so it will not make us put on weight. If we drink water, we will probably drink less sugary soft drinks such as Coca-cola. Doctors also believe that drinking more water may stop people from overeating. They say that many people think that they are hungry when they are, in fact, thirsty. Doctors suggest, therefore, that we eat less food and drink more water.
There are still many health problems that cannot be solved by drinking water, so we should not stop going to seeing the doctor completely. However, if we make a decision to drink water every day, we may find that we need to go to the doctor a lot less often.
【小题1】We need _____for a healthy diet.
| A．fibre | B．food | C．water | D．Water and different foods |
| A．energy and fibre in our bodies |
| B．fruit, vegetables and fish in our bodies |
| C．sugar and fat out of our bodies |
| D．poisons and waste out of our bodies |
| A．people eat too much sugar |
| B．water is not important for our health |
| C．we should go to the doctor less often |
| D．some health problems are caused by a lack of water |
| A．they think they are hungry and eat too much |
| B．they think they are thirsty and eat less |
| C．water has no calories |
| D．it makes them hungry |
When did you last see a polar bear?On a trip to a zoo,perhaps?If you had attended a winter activity in New York a few years ago,you would have seen a whole polar bear club.These "Polar Bears" are people who meet frequently in the winter to swim in freezing cold water.That day,the air temperature was 3℃,and the water temperature was a little higher.The members of the Polar Bear Club at Coney Island,New York are usually about the age of 60.Members must satisfy two requirements.First,they must get along well with everyone else in the group;this is very important because there are so many different kinds of people in the club.Polar Bears must also agree to swim outdoors at least twice a month from November through February.
Dcotors don't agree about the medical effects of cold-winter swimming.Some are worried about the dangers of a condition in which the body's temperature drops so low that finally the heart stops.Other doctors,however,point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter.
The Polar Bears themselves are satisfied with the benefits of cold-water swimming.They say that their favorite form of exercise is very good for the circulatory system(循环系统）because it forces the blood to move fast to keep the body warm.Cold-water swimmers usually turn bright red after a few minutes in the water.A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming.
The main benefits of cold-water swimming are probably mental.The Polar Bears love to swim all year round;they find it fun and relaxing.As one 70-year-old woman says,"When I go into water,I pour my troubles into the ocean and let them float away."
【小题1】The members of the Polar Bear Club must meet the following requirements except that_____.
| A．they must swim outdoors at least 8 times in the four cold months |
| B．they must reach the age of 60 |
| C．they should be easy to make friends with |
| D．they must agree to swim outdoors from November through February |
| A．Polar Bears are bears swimming in freezing water |
| B．cold-water swimming can make the body temperature dangerously high |
| C．you are healthy if cold-water swimming turns your skin color blue |
| D．cold-water swimming causes more heart attacks in summer than in winter |
| A．it is an easy way ot keep the body warm in winter | B．they can remain young |
| C．they find it enjoyable and interesting | D．they might meet fewer troubles in life |
| A．the requirements of the Polar Bear Club | B．a group of cold-water-swimming livers |
| C．the Polar Bears' life in New York | D．doctors' ideas about cold-water swimming |