阅读理解。 Animals seem to have the sense to eat when they are hungry and they do
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| 阅读理解。 |
Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies
need. It has been shown that rats will, when given a choice over a period of time, prefer water with
vitamins to water without vitamins even there is no difference in taste or smell between the two water
bottles. When a fragrant flavor (香味) was added to the vitamin-enriched water, the rats did seem to
develop a taste for it and kept drinking it, even after the vitamins were switched to the clear water. In time,
however, they broke the habit and went back to where the necessary vitamins were.
In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria feeding arrangement,
with a wide selection of baby food before them. They were given whatever they pointed to or appeared
interested in. We are told that at first they showed some unusual eating patterns (方式), but over a period
of time they managed to select well-balanced diet.
So, in selecting food, rats and babies do seem to know and act on what"s best for them. Apparently,
there is a kind of "body wisdom", which humans soon lose. Most of us do not eat as wisely as we could. Many of our food preferences are culturally determined and influenced by long established habits. Some
people eat foxes, dogs and blackbirds, while we eat cows and pigs. So what people eat and how much
they eat seems to be greatly influenced by what is going on around them. |
| 1. As far as their eating habits are concerned, babies and rats are similar in that both _____. |
A. have the natural abilities to choose a balanced diet
B. develop a taste for the same kinds of flavors
C. have the same eating patterns
D. prefer flavored food and drink |
| 2. In the experiment on rats, a fragrant flavor was added to the water to _____. |
A. prove that vitamins are tasteless
B. find out rats preference in flavor
C. encourage rats to drink vitamin-enriched water
D. test whether rats know which drink is good for them |
| 3. According to the passage, adults eating habits differ from those of babies because _____. |
A. adults have more choices of food than babies in eating patterns
B. adults usually cannot resist the temptation of various delicious food
C. adults" eating habits are closely related to the social and culture customs
D. adults know better than babies what kinds of food are good for their health |
答案
| 1-3: ADC |
举一反三
| 根据对话内容,用方框中所给词的适当形式填空.(其中有一词多余) |
| teach, student, invent, himself, at, job, importance, know | | 阅读理解。 | Computers have many uses today. Computers can solve difficult problems
and control other machines. Many people use small computers called
calculators(计算器) to solve simple math problems quickly. Scientists use
large computers to solve many problems at the same time. You can play games
with computers, and some computers can help you learn languages. The
Kurzweil Reading Machine is a special kind of computer. It can read books for
blind people.
To use the Kurzweil machine, a blind person can simply open the book and
put it down on the scanner(扫描器). The machine "reads" the words on the
page. When one page is finished, the blind person turns the page and puts the
book on the scanner again. The Kurzweil machine can read in a normal voice
or in a special fast voice. It can read words with small letters and large letters.
Blind people like the Kurzweil machine because they can "read" anything
with it: newspapers, magazines, books, even typed letters. Many libraries now
have Kurzweil machine for blind people to use. The Kurzweil machine can
also help shortsighted children learn to read. | | 1. What can Kurzweil Reading Machine do? | A. Solve many problems at the same time.
B. Play computer games with people.
C. Help people learn language.
D. Read the words on the paper. | | 2. The underlined word "it" (in paragraph 2) refers to _____. | A. the book
B. the scanner
C. the Kurzweil machine
D. the blind | | 3. What is the main idea of the second paragraph? | A. How computers work.
B. How to use a Kurzweil machine.
C. How to use the scanner.
D. The Kurzweil machine can read in two voices. | | 4. Which of the following is TRUE? | A. Computers can solve all the problems people can"t do.
B. Calculators are used for solving many problems at the same time.
C. When using the Kurzweil machine, a blind man needn"t do anything.
D. The Kurzweil machine can help not only the blind people but also the
shortsighted children. | People believe that climbing can do good to health. Where can you learn the skill of climbing then?
If you think that you have to go to the mountains to learn how to climb, you"re wrong. Many Americans
are learning to climb in city gyms (体育馆). Here, people are learning on special climbing walls. The
climbing wall goes straight up and has small holding places for hands and feet.
How do people climb the wall? To climb, you need special shoes and a harness(保护带) around
your chest to hold you. There are ropes (绳索)tied to your harness. The ropes hold you in place so
that you don"t fall. A beginner"s wall is usually about 15 feet high, and you climb straight up. There are
small pieces of metal that stick out for you to stand on and hold on to. Sometimes it"s easy to see the
new piece of metal. Sometimes, it"s not. The most difficult part is to control your fear. It"s normal for
humans to be afraid of falling, so it"s difficult not to feel fear. But when you move away from the wall,
the harness and the ropes hold you, and you begin to feel safe. You move slowly until you reach the
top.
Climbing attracts people because it"s good exercise for almost everyone. You use your whole body,
especially your arms and legs. This sport gives your body a complete workout. When you climb, both
your mind and your body can become stronger. | | 1. What can we infer from the passage? | A. People are fairly interested in climbing nowadays.
B. It is impossible to build up one"s body by climbing.
C. People can only learn the skill of climbing outdoors.
D. It is always easy to see holding places in climbing. | | 2. The most difficult thing to do in wall climbing is _______. | A. to tie ropes to your harness
B. to control your fear
C. to move away from the wall
D. to climb straight up | | 3. The word "workout" underlined in the last paragraph most probably means _______. | A. settlement
B. exercise
C. excitement
D. tiredness | | 4. Why does the author write this passage? | A. To tell people where to find gyms.
B. To prove the basic need for climbing.
C. To encourage people to climb mountains.
D. Introduce the sport of wall climbing | | 根据短文内容，用方框中所给词的适当形式填空。（其中有一词多余) | | be only small at still from look use | | 阅读理解。 | In the future,life will be much better. Maybe there will be vision phones(可视电话)in every family.
People can have a medical examination"without a doctor or a nurse in the room.lf people want to do
some shopping,they do not need to leave their homes. And what about education(教育) ?
There will be more educational programs on the radio or on TV, even on the Internet. So many
children who live in faraway villages don"t need go to school every day. They can study at home.
Each family will have a robot. Robots will help people with their housework.
Maybe some people will go to the moon for a holiday and some people can live under the sea in
hot summer. | 1. If you are ill, you can see the doctor"_____in the future.
2. In the future,_____can help people do the housework.
3. In the future,students can study on______.
4. Some people can live under the sea______.
5. People can go to the moon______. | 最新试题
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