Trees are useful to man(人类)in three very important ways. The first important way is that they provide man with food, wood and other products. Trees provide not only man with food, but also many animals with food. Without trees many animals could not live on the earth. It's not easy for man to live on the earth, either.
The second important way is that trees give us shade. On a hot summer day, people are eager(渴望)to have a rest under the shade of a tree after they have walked a long way. You can imagine how important the shade of a tree is to man and to animals.
The third important way is that trees help to prevent drought(干旱)and floods(洪水). However, in many parts of the world, man has not realized the third important way. He has cut trees down in large numbers. In the end he finds that he has lost the best friends he had.
【小题1】Trees are important to man in       ways.

A.2B.3C.4D.5
【小题2】Which sentence is true?
A.Trees give food to both man and animals.
B.Trees only provide animals with food.
C.Trees give food to neither man nor animals.
D.Trees only provide man with food
【小题3】On a hot summer day,        .
A.people are eager to have a rest
B.people usually walk a long way
C.animals don't need shade
D.the shade of a tree is very important to man and to animals
【小题4】In many parts of the world, man has not realized that trees help to          
A.give us food B.give us shade
C.prevent drought and floodsD.give us wood
【小题5】In this story the underlined word "He" means       .
A.farmerB.manC.workerD.boy

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.

 

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