阅读理解。 When you feel sad, tears will come down from your eyes. When you are h
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you laugh hard, tears will also come down from your eyes. But tears have a more important job than
showing your feelings.
Tears keep your eyes clean and healthy. They wash away dirt and germs (细菌) just like bath.
Your eyes also need tears to keep them wet. And eyes must be wet so that they can move smoothly.
Your eyes are busy looking here and there all day long. They move quickly from one thing to another.
If you didn"t have tears, your eyes couldn"t move, and soon you would be blind. Maybe you don"t like
tears, but your eyes can"t do without them.
B. why people have tears
C. why people cry when they are sad
D. what tears are
B. making your face clean
C. washing things from your eyes
D. making your eyes bright
B. laugh and cry
C. keep clean
D. show your feelings
B. wash away dirt and germs
C. have tears in your eyes
D. move your eyes quickly
B. your eyes like tears very much
C. your eyes can"t work without tears
D. your eyes can"t open without them
答案
举一反三
only about one in two hundred is affected (感染) in this matter. Perhaps, after all, it is safer to be driven
by a woman.
There are different kinds of color blindness. For example, a man cannot see deep red. He may think
that red, orange and yellow are all shades (影子)of green. Sometimes a person can"t tell the difference
between blue and green. Only a few unlucky men may see everything in shades of green-a strange world
indeed.
Color blindness in human beings is a difficult thing to explain. In only one eye there are millions of very
small things called "cones (锥状细胞)". These help us to see in the bright light and to tell differences
between colors. There are also millions of "rods ( 杆状细胞)", but these are used for seeing when it is
nearly dark. They show us shapes but not colors.
Some insects have favorite colors. Mosquitoes (蚊子) like blue but do not like yellow. A red light
will not attract insects, but a blue light will. Human beings also have favorite colors. Yet we are lucky.
With the help of the cones in our eyes, we can see many beautiful colors by day, and with the help of
the rods we can see shapes at night.
B. 无色
C. 色盲
D. 讨厌颜色
B. women are better at driving than men
C. women can see things more clearly
D. there are fewer color-blind women
B. kill insects
C. see in the dark
D. tell orange from yellow
B. yellow
C. blue
D. green
B. Not all of men have the same problem in recognizing colors.
C. None of men can tell the difference between blue and green.
D. All of men see everything in shades of green.
most of us like eating sweets and ice cream better than meat and rice. Sweets and ice cream are not bad
for us if we eat them at the end of a meal. If we eat them before a meal, they may take away our appetite(食欲). So the doctors suggest us we should have our meal regularly.
In old England, the judges usually asked the pris
oners to eat bread without water. If they couldn"t swallow(吞)the bread, it meant that they weren"t telling the truth. Though this seems strange and foolish,
they thought it was an excellent way of finding out the truth. A man who is worrying about something has
difficulties in swallowing dry bread, because he loses his appetite.
B. happier
C. more beautiful
B. before a meal
C. when we are hungry
B. at the same time
C. at any time
B. eat a lot of dry bread
C. hardly (几乎不) eat dry bread
B. shy
C. unhappy
This is an old English saying. Have you heard of it before? It means that we must go to bed early
and get up early in the morning. Then we shall be healthy. We shall also be rich (wealthy) and clever
(wise).
This is true. The body must have enough sleep to be healthy. Children of young age should have
ten hours" sleep every night. Children who do not have enough sleep cannot do their work very well.
They will not be wise and they may not become wealthy!
The body also needs exercise. Walking, running, jumping, swimming and playing games are all
exercise.
Exercise keeps the body strong. Exercise also helps the blood (血液) to move around inside the
body. This is very important. Our blood takes food to all parts of our body. The head also needs blood.
Exercise helps us to think better!
B. be healthy
C. think better
D. have strong blood
B. won"t do well in his work
C. goes to school in time
D. has enough sleep
B. he has a lot of homework to do
C. he is strong enough
D. he does exercise
B. blood
C. children
D. head
B. A student should have 10 hours" sleep.
C. It"s good for you to get up early and go to bed early.
D. If you have enough blood, you"ll be wise.
| 完形填空。 | |||
| Suppose (假定) every person on the Earth ate only one kind of food. And maybe one year that food couldn"t __1__. If that happened, man would soon __2__. Luckily, man doesn"t __3__ that problem. But another animal may. The animal is the giant (巨大的) panda, one of the world"s most-loved animals. Dr. Thomas Soderstrom, a scientist, has __4__ for the first time that the bamboo (竹子) the giant pandas eat is dying. As a result, many of the pandas are also dying of being __5__. Scientists estimate (估计) that so far more than 140 giant pandas have died. This number may be __6__ one-quarter of the world"s giant panda population. Between 400 and 1000 giant pandas are __7__ to live in the mountains. Giant pandas were once more __8__all over many parts of Asia (亚洲). Now they are only in small parts of China. Can the wild pandas be __9__? The scientists want to find out more about the animals" food. They want to see whether the pandas are able to 10 their food while the bamboo is dying. | |||
| ( ) 1. A. found ( ) 2. A. break ( ) 3. A. want ( ) 4. A. found ( ) 5. A. cold ( ) 6. A. almost ( ) 7. A. thought ( ) 8. A. big ( ) 9. A. kept ( ) 10. A. have | B. be found B. live B. work B. invented B. tired B. already B. believed B. liked B. saved B. catch | C. founded C. die C. answer C. known C. hungry C. hardly C. seen C. interesting C. made C. change | D. be founded D. lose D. face D. studied D. ill D. really D. said D. common D. taken D. get |
| 阅读理解。 | |||
| The World"s Water Shortage The world is not only hungry, but it is also thirsty for water. This may seem strange to you, since nearly 70 percent (百分比) of the earth"s surface is covered with water. But about 97 percent of this huge amount is sea water, or salt water. Man can only drink and use the other 3 percent the fresh water from rivers, lakes, underground, and other sources (资源). And we cannot even use all of that, because some of it is in the form of ice-bergs and glaciers (冰川). Even worse, some of it has been polluted. However, as things stand today, this small amount of fresh water is still enough for us. But our need for water is increasing (增加) rapidly almost day by day. Only if we take steps to deal .with this problem now can we avoid (避免) a severe (严重的) worldwide water shortage later on. We all have to learn how to stop wasting our valuable water. One of the first steps is to develop ways of reusing it. Today in most large cities, water is used only once and then sent out into a sewer system (下水道). From there it returns to the sea or runs into underground storage tanks. But it is possible to pipe used water to a purifying (净化) plant. There it can be treated with chemicals so that it can be used again, just as if it were fresh from a spring. But even if every large city purified and reused its water, we still would not have enough. All we"d have to do to make use of the vast reserves (贮备) of sea water in the world is to remove the salt. If we take these steps we"ll be in no danger of drying up. | |||
| 1. The world is thirsty for water because we can only use _____ percent of the water covering the surface of the earth. | |||
| A. 3 B. more than 3 C. less than 3 D. 97 | |||
| 2.Which of the following statements is not true? _____. | |||
| A. As things remain unchanging, this small amount of fresh water is still enough for us B. Our need for water is becoming larger and larger C. There will be no water shortage in the future D. We should take steps to deal with the water shortage problem | |||
| 3. To reuse water, we should _____. | |||
| A. treat it with chemicals B. use it only once C. send it out into a sewer system D. make it flow into underground tanks | |||
| 4.In order to have enough water ,we should also make use of _____. | |||
| A. icebergs and glaciers B. sea water C. rivers and lake D. underground water | |||
| 5.In the passage, the writer tells us ___ __. | |||
| A. to make enough water B. to pay more attention to the water shortage problem C. to pipe used water to a purifying plant D. to reuse the water | |||