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African women who carry heavy loads on their .heads use much less energy per pound of load than soldiers who carry the same weight on their backs. In fact , according to a team of Kenyan, Italian and U. S. researchers, these women can carry up to 20 percent of their body weight without costing any extra energy. Carrying a 70-percent load, the women raised their energy consumption (消耗) only about 50 percent while nearly 100 percent for soldiers.
The scientists said they could not explain the finding for certain. One speculation (推测) is that head-supported loads are moved less up-and-down or side-to-side with each step than back-or-shoulder supported loads. But experience also seems to be a factor (因素) , since people who are not used to head carrying use as much energy that way as they do hack-carrying.
1.What's the main idea of the passage?
[ ]
A.African women carry the heaviest loads in the world.
B.Head-supported loads costs less energy.
C.The best way of carrying loads.
D.Use your heads.
2.According to the passage, if an American woman carries a load of her body weight , how much energy consumption will she raise?
[ ]
A.20 percent.
B.50 percent.
C.80 percent.
D.100 percent.
3.We can draw a conclusion from the passage that ________.
[ ]
A.African men also carry things on their heads
B.African women began to practise carrying things on their heads from young
C.Any one who carries loads on his head will save some energy
D.If a load is fixed on one's back, he can save 20 percent of his energy
4.Which of the following is true according to the passage?
[ ]
A.An African woman can carry more loads than a soldier.
B.There is no exact explanation about the matter up to now.
C.The team of research group is made up of some Italian and U. S. scientists and also some Kenyan women.
D.We should form the habit of carrying thing on our heads.
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African women who carry heavy loads on their .heads use much less energy per pound of load than soldiers who carry the same weight on their backs. In fact , according to a team of Kenyan, Italian and U. S. researchers, these women can carry up to 20 percent of their body weight without costing any extra energy. Carrying a 70-percent load, the women raised their energy consumption (消耗) only about 50 percent while nearly 100 percent for soldiers.
The scientists said they could not explain the finding for certain. One speculation (推测) is that head-supported loads are moved less up-and-down or side-to-side with each step than back-or-shoulder supported loads. But experience also seems to be a factor (因素) , since people who are not used to head carrying use as much energy that way as they do hack-carrying.
1.What's the main idea of the passage?
[ ]
A.African women carry the heaviest loads in the world.
B.Head-supported loads costs less energy.
C.The best way of carrying loads.
D.Use your heads.
2.According to the passage, if an American woman carries a load of her body weight , how much energy consumption will she raise?
[ ]
A.20 percent.
B.50 percent.
C.80 percent.
D.100 percent.
3.We can draw a conclusion from the passage that ________.
[ ]
A.African men also carry things on their heads
B.African women began to practise carrying things on their heads from young
C.Any one who carries loads on his head will save some energy
D.If a load is fixed on one's back, he can save 20 percent of his energy
4.Which of the following is true according to the passage?
[ ]
A.An African woman can carry more loads than a soldier.
B.There is no exact explanation about the matter up to now.
C.The team of research group is made up of some Italian and U. S. scientists and also some Kenyan women.
D.We should form the habit of carrying thing on our heads.
查看习题详情和答案>>We all know what it is like to be unable to turn your head because of a cold in the muscles of your neck, or because an unexpected twist has made your neck ache and stiff. Your whole body feels tight. The slightest move makes you jump with pain. Nothing could be worse than a pain in the neck. That is why we use phrase to describe some people who give you the same feeling. We have all met such people.
One is the man who always seems to be clapping his hands—often at the wrong time—during a performance in the theater. He keeps you from hearing the actors.
Even worse are those who can never arrive before the curtain goes up and play begins. They come hurrying down to your row of seats. You are comfortably settled down, with your hat and heavy coat in your lap. You must stand up to let them pass. You are proud of your self-control after they have settled into their seats…Well, what now…Good God, one of them is up again. He forgot to go to the men’s room, and once more you have to stand up, hanging on to your hat and coat to let him pass. Now, that is “a pain in the neck.”
Another, well-known to us all, is the person sitting behind you in the movies. His mouth is full of popcorn; he is chewing loudly, or talking between bites to friends next to him. None of them remain still. Up and down, back and forth, they go for another bag of popcorn, or something to drink.
Then, there is the main sitting next to you at a lunch counter smoking a smelly cigar. He wants you to enjoy it too, and blows smoke across your food into your mouth.
We must not forget the man who comes into a bus or subway car and sits down next to you, just as close as you will let him. You are reading the newspaper and he leans over and stretches his neck so that he can read the paper with you. He may even turn the paper to the next page before you are ready for it.
We also call such a person a “rubberneck”, always putting out his neck to where it does not belong, like neighbors who watch all your visitors. They enjoy invading your privacy. People have a strong dislike for rubbernecks. They hate being spied upon.
1.Where can you find this passage?
A. Medicine dictionaries. B. A travel guide.
C. Social science books. D. Students text books.
2.How do you feel when late comers walk back and forth in front of you in a cinema?
A. Disturbed. B. Ignored. C. Bored. D. Relaxed.
3.A “rubberneck” often .
A. says bad words behind people
B. quarrels face to face with neighbors
C. bargains the price with sales women
D. asks about other people’s business
4.Which of the follow is “a pain in the neck”?
A. Someone who helps you find your seat in a movie theatre.
B. Someone who smokes in a smoking section on a train.
C. Someone who throws trash out of his car window on the highway.
D. Someone who goes to the doctor for his severe pain on the neck.
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How do people pass on messages? When you write a letter or make a telephone call, your words _ 1___ a message. People communicate with words. Do you think you can communicate _2__ words? A smile __3_ your face shows you are happy and friendly. Tears in your eyes tell__4__ that you are sad. When you __5_ your hand in class, the teacher knows you want to say something __6___ ask questions. You shake your head, and people know you are saying no. You nod and people know you are saying ____ .7
Other things can also give some information. For example, a sign at the bus stop helps you to know which bus __8___. A sign on the wall of your school helps you to find the library. Signs on doors tell you __ 9___ to go in or out. __10___ you ever noticed that there are a lot of signs around you and that you receive messages __11__ them all the time? People can communicate __12___ many other ways. A (An) 13__ can use his drawings to tell about beautiful mountains, about the blue sea and many other things. Books __14___ to tell you about all wonderful things in the world and also about people and their ideas. Books, magazines, TV and radio and films all help us to communicate with other people. They all help us to know __15__ is going on in the world.
1. A.take B.carry C.bring D.gives
2. A.by B.with C.without D.use
3. A.in B.on C.at D.of
4. A.others B.the others C.other D.the other
5. A.put on B.put down C.put up D.put out
6. A.when B.or C.but D.if
7. A.no B.hello C.yes D.nothing
8. A.to get B.to take C.to have D.to bring
9. A.which B.where C.how D.what
10. A.Do B.Did C.Have D.Had
11. A.from B.of C.about D.by
12. A.with B.in C.without D.for
13. A.writer B.artist C.science D.in
14. A.write B.wrote C.are written D.is wrote
15. A.what B.which C.that D.how
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The Chinese are very generous(慷慨大方的) when it comes to educating their children. Some parents send their children to the best schools or even abroad to England, the US or Australia, regardless of how much this costs. Many also want their children to take extra-curriculum activities where they either learn a musical instrument or ballet, or other classes that will give them a head start in life. The Chinese believe that the more expensive an education is, the better it is, so parents often spend unreasonable amount of money on education. Even poor couples buy a computer for their son or daughter.
However, what most parents fail to see is that the best education they can give their children is usually very cheap. Parents can see that their children's skills vary; they will usually be skilled in some areas while poor in others. What most parents fail to realize though, is that today's children lack self-respect and self-confidence.
The problem is that parents are only educating their children on how to take multiple-choice tests and how to study effectively. They are not teaching them the most important skills they need to be confident, happy and clever.
Parents can help achieve this by teaching their children practical skills like cooking, sewing and other housework.
Teaching a child to cook will improve many of the skills that he will need later in life. Cooking demands patience and time. It is an enjoyable but difficult experience. A good cook always tries to improve his cooking, so he will learn to work hard and gradually finish his job successfully. The result, a well-cooked dinner, will give a child a lot of satisfaction and confidence.
An old machine such as a broken radio or TV set that you give your child as a toy may make him curious and arouse his interest. If he will spend hours looking at it, and try to mend it; your child might become an engineer when he grows up. Such activities do more than teach a child to read a book; but rather they teach them to think, and to use their minds. This is much more important than learning by reading a book.
Title |
How Chinese Parents Should 1.________ Their Children |
Common practice |
Being 2._________ with money when it comes to education. Sending them to the best schools or 3.__________. Taking extra-curriculum activities so as to 4.__________ a head start in life. Spending more money than they can afford on education. |
Bad results |
Children's lacking in self-respect and5.___________. |
Suggested 6.__________ |
Teaching their children practical skills, which are of the greatest 7.____________. Cooking. Sewing. Other housework. 8.__________ a broken radio or TV. |
9._______ results |
To make the children hardworking and confident. To enable them to 10.____________ and to use their minds. |
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