Trees are useful to man in three important ways: they give him wood and other useful things, they give him cool places, and they help to stop drought and flood.
Unluckily, in many parts of the world, man has not found that the third of these points is the most important. Man wants to make money from trees, so he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And also, he is usually too careless to plant and look after new trees. So the forests slowly disappear.
This does not only mean that man will have fewer trees. The results are even worse: for where there are trees, their roots break up soil-make the rain in-and also bind the soil, thus stopping it from being washed away easily; but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When all the top-soil is gone, nothing is left but useless desert.
1.The most important points of trees to man is ________.
A. they help him to make money
B. they give him cool
C. they give him wood and other things
D. they help him to stop drought and floods
2.In many places forests slowly disappear because ________ .
A. many trees have been cut down by man
B. new trees are not well looked after
C. man has not paid enough attention to planting trees
D. all the above
3.Land becomes desert after all trees are cut down because ________ .
A. roots of trees break up the soil
B. there are too many rainfalls
C. strong winds bring a lot of sand
D. there are no longer trees to keep the rain and protect the top-soil.
4. Which title best fits the passage?
A. Trees and Man.
B. The Function of Tree Wood.
C. How do People do with Trees?
D. The Usage of Tree Roots.
When we can see well, we do not think about our eyes often. It is only when we can not see perfectly that we come to see how important our eyes are.
People who are nearsighted can only see things that are very close to their eyes. Many people who do a lot of close work, such as writing and reading, become nearsighted. Then they have to wear glasses in order to see distant things clearly.
People who are farsighted face just the opposite problem. They can see things that are far away, but they have difficulty reading a book unless they hold it at arm’s length. If they want to do much reading, they must get glasses too.
Other people do not see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts. Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.
When night falls, colors become fainter to the eyes and finally disappear. After your eyes have grown used to the dark, you can see better if you use the side of your eyes rather than the centers. Sometimes, after dark, you see a small thing to one side of you, which seems to disappear if you turn your head in its direction. This is because when you turn your head, you are looking at the thing too directly. Men on guard duty sometimes think they see something moving to one side of them. When they turn to look straight at it, they can not see it any more, and they believe they were mistaken. However, this mistake happens because the center of the eye, which is very sensitive in daylight, is not as sensitive as the sides of the eye after dark.
1.We don’t know that our eyes are of great importance until ________.
A. we think about our eyes
B. we cannot see clearly
C. we wear glasses
D. we have to do much reading
2.According to the passage, a ________ is more likely to be nearsighted.
A. tailor B. doctor C. guard D. painter
3.People who are farsighted ________ .
A. cannot do a lot of close work without glasses
B. can only see things that are very close to their eyes
C. have difficulty reading a book if they hold it at arm’s length
D. have the same problem as the nearsighted people
4.To see a small thing at night, it is better to look ________ .
A. with wide open eyes
B. with half shut or narrowed eyes
C. straight at it
D. in a slightly different direction
“How can I learn English well?” This is a question many students ask. In my opinion, the most effective way is to learn lessons by heart. If you can recite the text and write it out, you’ve learned it fairly well. And if you can tell, in your own words, what the lesson says you’re a very successful learner indeed. Your English will be quite perfect.
This is a difficult task. However, if you try to learn by heart only part of each lesson, you’ll find it not half so hard as you might have thought.
Learning this way, you will make rapid progress. Of course, writing is also necessary. It helps you a lot on our way to success in English.
Equally important is to feel the language. You should be able to laugh at jokes and be shocked at bad news. When using English, try to forget your mother tongue. Instead of helping you, your own language gets in your way. So, never try to see English through translation.
1.In the writer’s opinion, the most effective way in learning English is ________.
A. to practise speaking, writing and feeling it
B. to forget your own native language
C. to translate everything into his own language
D. to memorize the English words and grammatical rules
2.“Instead of helping you, your own language gets in your way.”This sentence means that memorizing your own language can ________.
A. help you to study English well
B. stop you mastering English
C. make English easy to learn
D. help you notice mistakes
3.Equally important is to feel the language. “to feel the language” here means________.
A. to get a knowledge of English by touching
B. to be able to read and write English
C. to translate English into your own by imagining
D. to be able to experience the rich sensation of the language
The word “sharp” can be __ to describe many different things in your home, classroom, and places of work. In this chapter, the writer __sharp pencils, meaning pencils with a very fine __.The writer does not like dull pencils. 。
We can also use “sharp” to describe the blades of knives. Knives also have points. We can use “sharp” to describe a __ kind of point, such as the sharp points of kitchen and steak knives. Scissors have blades, too, and we can describe these blades as sharp or dull. Furthermore, the points of scissors are __ sharp or rounded spending on the kind of scissors. Some tools, such as saws, scrapers, and garden tools, also have blades. We can use the words “sharp” and “dull” to describe the blades of these tools, too. Sharp knives, scissors, and tools are__to use. They cut things easily and quickly, without effort.
“Sharp” can be used to describe the edges of furniture and __some containers. For example, the edge of a table or desk can be __.In addition; we can describe the edge of __ open can as sharp. The top of a can is sometimes sharp__ to cut your hand. A piece of __ from a broken jar or bottle is ordinarily very sharp.
__we sometimes use “sharp” to describe people. A person who appears sharp is very well __.A person who is sharp, on the other hand, is intelligent, smart, and__ learn and understand.
To summarize, “sharp” can be used to describe many kinds of __ that have blades, points, and edges. When we used it to describe people, it can mean nice looking, well dressed, or intelligent. It is an expensive word because it can be used in many different ways.
1.A. written B. used C. seen D. taken
2.A. talks about B. takes care of C. doesn't like to mention D. makes up his mind to
3.A. sharp B. color C. point D. edge
4.A. some B. any C. only D. certain
5.A. either B. neither C. too D. very
6.A. difficult B. easy C. interesting D. clean
7.A. for B. with C. of D. at
8.A. seen B. sharp C. smooth D. hard
9.A. an B. a C. the D. /
10.A. so as B. in order C. so that D. enough
11.A. news B. glass C. information D. advice
12.A. However B. Finally C. Therefore D. In this way
13.A. prepared B. dressed C. mannered D. served
14.A. easy to B .is to C. to D. quick to
15.A. funny things B. knives C. objects D. containers
_____ leaves the room last ought to turn off the lights.
A. Anyone B. The person C. Whoever D. Who
We must find a dictionary. ____ will do.
A. Some B. Any C. Every D. Each
