Drinking a lot of water does not do any good to the body, according to two exper

Drinking a lot of water does not do any good to the body, according to two exper

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Drinking a lot of water does not do any good to the body, according to two experts in the United States. In fact, they warn, drinking too much water could be, in certain cases, harmful.
In a study, Dr Stanly Goldfarb and Dr Dan Negoianu, both of the Renal, Electrolyte and Hypertension Division at the University of Pensylvania, the United States, have denied the popular belief that drinking a lot of water clears body toxins(毒素)better, improves skin, and helps reduce weight.
Dr Goldfarb and Dr Negoianu say that they found little proof to back the public opinion that drinking 8 glasses of water every day benefits health. At the same time, they fond little proof of harm in drinking 8 glasses of water every day.
It is widely believed that in some cases-such as athletes, people who live in hot, dry environments, and those with certain medical conditions-drinking a lot of water indeed helps, but no studies have been done to prove the benefits of this practice in average, healthy people, the website medheadlines.com reports.
The study at the University of Pennsylvania also examined reports that some people experienced increased headaches when their consumption(消耗)of water was low. In one small study, which the doctors reviewed, the group drinking the most water reported fewer headaches than the control group, “but the difference in the number of headaches was o small between the two groups as to be considered unimportant.”
The researchers concluded that there is no scientific proof to support that average, healthy people need to drink at least 8 glasses of water each each day.
The website medheadines.com says that, according to an Indian doctor, drinking too much water is harmful. If water enters the body more quickly than it can be removed, problems can occur.
小题1:What’s the key message delivered in the passage?
A.Drinking too much water might bring harm.
B.Whether to drink enough water makes no difference.
C.Drinking too much water may cause headaches.
D.Average, healthy people should drink more water.
小题2:We can learn from the passage that 8 glasses of water every day_______ .
A.proves good for the bodyB.has scientific proof of harm
C.is sure to reduce headachesD.is generally considered necessary
小题3:Who may agree that drinking lots of water helps to lose weight?
A.The two experts.B.The Indian doctor.
C.The general public.D.The website.
小题4:According to the passage, we know that_______.
A.the website medheadlnes.com is developed by an Indian doctor
B.the study was carried out by two experts with an Indian doctor
C.the two experts performed the study at the University of Pennsylvania
D.drinking 8 glasses of water every day can cure certain diseases

答案

小题1:A
小题2:D
小题3:C
小题4:C
解析

小题1:细节题:从第一段的句子:drinking too much water could be, in certain cases, harmful.
可知喝太多水,对人是有害的,选A
小题2:推理题:从第三段的句子:At the same time, they fond little proof of harm in drinking 8 glasses of water every day.可知一天8杯水是很必要的。选D
小题3:细节题:从第一段的句子:have denied the popular belief that drinking a lot of water clears body toxins(毒素)better, improves skin, and helps reduce weight.可知公众认为喝很多水可以减肥。选C。
小题4:细节题:从第一段的句子:In a study, Dr Stanly Goldfarb and Dr Dan Negoianu, both of the Renal, Electrolyte and Hypertension Division at the University of Pensylvania, the United States,可知是美国的两个科学家做的这项调查。选C
举一反三
When you want to go shopping, decide how much money you can spend on new clothes. Think about the kind of clothes you really need. Then look for those clothes you really need. Then look for those clothes on sale.
There are labels(标签) inside all new clothes. The labels tell you how to take care of your clothes. The label for a shirt may tell you to wash it in warm water. A sweater label may tell you to wash in cold water. The label on a coat may say “dry clean only”, for washing may ruin this coat. If you do as the directions (说明)on the label, you can keep your clothes looking their best for a long time.
Many clothes today must be dry cleaned. Dry cleaning is expensive. When buying new clothes, check to see if they will need to be dry cleaned. You will save money if you buy clothes that can be washed.
You can save money if you buy clothes that are well made. Well-made clothes last longer. They look good even after they have been washed many times. Clothes that cost more money are not necessarily(不一定) better made. They do not always fit better. Sometimes less expensive clothes look and fit better than more expensive clothes.
小题1:If you want to save money, you had better buy clothes that __ .
A.don’t fit you B.don’t last long
C.need to be dry cleaned D.can be washed
小题2:The labels inside the clothes tell you______.
A.how to keep them looking their best B.how to save money
C.whether they fit you or notD.where to get them dry cleaned
小题3:The first thing for you to do before you buy clothes is __ .
A.to look for well-made clothes
B.to see how much money you can spend on it
C.to know how to wash them
D.to read the labels inside them
小题4:We learn from the passage that cheaper clothes __ .
A.are always worse madeB.must be dry cleaned
C.can not be washedD.can sometimes fit you better
小题5:The best title for the passage should be __ .
A.Buy Less Expensive Clothes
B.Taking Enough Money When Shopping
C.Being a Clever Clothes Shopper
D.Choosing the Labels inside New Clothes

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How often one hears children wishing they were grown-ups and old people wishing they were young again. Each age has its pleasures and its pains, and the happiest person is the one who enjoys what each age gives him without wasting his time in useless regrets.
Childhood is a time when there are few responsibilities to make life difficult. If a child has good parents, he is fed, looked after and loved, whatever he may do. It is impossible that he will ever again in his life be given so much without having to do anything in return. In addition, life is always presenting new things to the child — things that have lost their interest for older people because they are too well-known. But a child has his parents. He is not so free to do what he wishes to do; he is continually being told not to do things or being punished for what he has done wrong.
When the young man starts to earn his own living, he can no longer expect others to pay for his food, his clothes, and his room, but has to work if he wants to live comfortably. If he spends most of his time playing about in the way that he used to as a child, he will go hungry. And if he breaks the laws of society as he used to break the laws of his parents, he may go to prison. If, however, he works hard, keeps out of trouble and has good health, he can have the great happiness of building up for himself his own position in society.
小题1: According to the second paragraph, the writer thinks that __.
A.life for a child is comparatively easy
B.a child is always loved whatever he does
C.if much is given to a child, he must do something in return
D.only children are interested in life
小题2:Which of the following statements is NOT true according to the passage?
A.People are often satisfied with their life.
B.Life is less interesting for old people.
C.Adults are free to do what they want to do.
D.Adults should no longer rely on others.
小题3:The underlined word "responsibilities" in the second paragraph means__________.
A.dutiesB.jobsC.suggestionsD.desires
小题4:The main idea of the passage is _________ .
A.life is not enjoyable since each age has some pains
B.young men can have the greatest happiness if they work hard
C.childhood is the most enjoyable time in one"s life
D.one is the happiest if he can make good use of each age in his life

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Happiness is for everyone. You don’t need to care about those people who have beautiful houses with large gardens and swimming pools or those who have nice cars and a lot of money and so on. Why? Because those who have big houses may often feel lonely and those who have cars may want to walk on the country roads in their free time.
In fact, happiness is always around you if you put your heart into it. When you are in trouble at school, your friends will help you; when you study hard at your lessons, your parents are always taking good care of your life and your health; when you get a success, your friends will say congratulations to you; when you do something wrong, people around you will help you to correct it. And when you do something good to others, you will feel happy, too. All these are your happiness. If you notice a bit of them, you can see that happiness is always around you.
Happiness doesn’t mean money. It is a feeling of your heart. When you are poor, you can also say you are very happy, because you have something that can’t be bought with money. When you meet with difficulties, you can say loudly you are very happy, because you have more chances to challenge yourself. As the saying goes, life is like a revolving(旋转的)door. When it closes, it also opens. If you take every chance you get, you can be a happy and lucky person.
小题1:When you do something wrong , people around you will    .
A.quarrel with youB.help you correct it
C.do something wrong like youD.laugh at you
小题2:What will your friends say when you make great progress?
A.Oh, so do IB.Congratulations!
C.Good luck!D.Just so-so
小题3: Which of the following is NOT true according to the passage?
A.People who have cars would never like to walk in the open air.
B.You can get help from others when you are in trouble.
C.You can still be a happy person even if you have little money.
D.Happiness is always around you though difficulties come towards you.
小题4:The passage mainly tells us      .
A.parents always care for our life and health
B.we’re not happy if we meet with difficulties
C.happiness is always around us
D.life is colorful

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Everyone needs friends. We all like to feel close to someone. It is nice to have a friend to talk, laugh and do things with. Sure, there are times when we need to be alone. We don’t always want people around. But we would feel lonely if we never had a friend.
No two people are the same. Sometimes friends don’t get along well. That doesn’t mean they no longer like each other. Most of the time they will go on being friends. Sometimes friends move away. Then we feel very sad. We miss them very much. But we can call them and write to them. Maybe we would never see them again. And we can make new friends. It is surprising to find out how much we like new people when we get to know them. Families sometimes name their children after a close friend. Many places are named after men and women, if they are friendly to people in a town. Some libraries are named in this way. So are some schools. We think of these people when we go to these places.
There is more good news for people, if they have friends. These people live longer than those people who don’t have friends. Why? It could be that they are happier. Being happy helps you stay well. Or it could be just knowing that someone cares. If someone cares about you, you take better care of yourself.
小题1: The first paragraph tells us     .
A.what is the feeling of having no friends
B.we always need friends around us
C.making friends is a need in people’s life
D.we need to be alone in our life
小题2:Which of the following places people name after their friendly people is NOT mentioned in the passage?
A.A town.B.A room.C.A school.D.A library.
小题3:Why do people who have friends live longer?
A.They feel happier and healthier.B.They know more about friendship.
C.They take less care of themselves.D.They care more about their friends.

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AAAGH! The Generation 90s is coming!
Wearing earphones, using complex Net language and constantly text messaging friends, the Gen-90s following the Gen-80s begin to make their world debut(初次登台).
Each generation or age group has its own symbols and lifestyle.Read on and judge for yourselves if you fit the Gen-90s profile.                
Earphones
These little devices seem to grow on the heads of the Gen-90s.They might lead to MP3, MP4 or MP101 players, giving these young people a plugged-in,cool and perhaps self-addicted look, of course, life is not always music to the ears.      
Martian language
They have created their own code-like online language.It’s a mixture of English, Japanese and Chinese that perhaps only Martians can understand.This is an imaginative generation, though they need to be careful to keep it out of their term papers.                 
Self-Portrait
Saying “cheese” to their own digital cameras is routine for this generation.A little bit of narcissism (自恋) never hurts anyone.It helps them reflect a little on their own lives.But be aware of the risks of posting private photos online.
Text-messaging
They can type their mobile phones as fast as they can speak.This is a generation that respects efficiency.However, oral communication is important and will never go out of style.
小题1:Who are the intended readers of the passage?
A.TeensB.EducatorsC.SocialistsD.Parents
小题2:According to the passage , if you belong to the Gen-90s , you will ____________ .
A.just appreciate yourself and ignore others’ strengths.
B.make your presentation and have your own symbols and lifestyle.
C.have the same symbols and lifestyle of the Gen-80s.
D.like music and dance very much.
小题3:According to the text, the writer will choose ______ as a good example to the Gen-90.
A.Li Hua likes music and always wearing ipod
B.Zhang Chao is not only an imaginative boy but do everything efficiently.
C.Lily is a shy girl and she doesn’t like making friends.
D.Fangfang likes being taken photos and often posting them on line.
小题4:According to this passage, which is FALSE?
A.Not all teens are cautious about posting photos.
B.They type their mobile phones so fast that it can catch the speed of speaking.
C.The Gen-90s have a preference for some music players, and even regard them as a necessary part of life.
D.They don’t use the cool and complex online language in formal writing.
小题5:The main idea of the passage is about________.
A.the Gen-90s’ happy life
B.the difference between the Gen-80s and the Gen-90s
C.the Gen-90s’unique lifestyle and some practical warnings
D.the similarities between the Gen-80s and the Gen-90s

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