Trees are useful to man in three important ways, and they provide 1 with 2 and other products, they give him shade, and they help to prevent drought 3 floods. Unfortunately, in many parts of the world 题目和参考答案——青夏教育精英家教网—

题目内容

　　Trees are useful to man in three important ways, and they provide 1 with 2 and other products, they give him shade, and they help to prevent drought 3 floods.

　　Unfortunately, in many parts of the world, man has not 4 that the third of these is the most important. In his eagerness to 5 money from trees, he has cut them down in large 6 , only to find that without them he has lost the best 7 he had. And besides, he is usually too 8 to plant and look after new trees. 9 the forests slowly disappear.

　　This does not only 10 that man will have fewer trees. The results are even 11 , for where there are trees, 12 break up soilallowing the rain to sink in and also bind (固定) the soil, thus preventing it from 13 easily; but where there are no trees, the 14 falls on hard ground and flows away, causing floods and carrying away the 15 top-soil. When all the top-soil is gone, nothing remains but worthless desert.

1．

[　　]

A．him

B．her

C．them

D．us

2．

[　　]

A．woods

B．board

C．wood

D．firewood

3．

[　　]

A．neither

B．and

C．but

D．nor

4．

[　　]

A．found

B．seen

C．known

D．realized

5．

[　　]

A．make

B．get

C．have

D．lose

6．

[　　]

A．number

B．amounts

C．numbers

D．amount

7．

[　　]

A．friendly

B．friends

C．human beings

D．persons

8．

[　　]

A．careless

B．care

C．careful

D．carefully

9．

[　　]

A．For

B．But

C．And

D．So

10．

[　　]

A．depend on

B．want

C．mean

D．do

11．

[　　]

A．serious

B．more serious

C．difficult

D．more difficult

12．

[　　]

A．their roots

B．their branches

C．their trunks

D．their trees

13．

[　　]

A．washed away

B．being away

C．being washing

D．being washed away

14．

[　　]

A．water

B．flood

C．rain

D．snow

15．

[　　]

A．rich

B．poor

C．its

D．poorer

答案：A;C;B;D;A;C;B;A;D;C;B;A;D;C;A
解析：

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阅读理解

　　There are places in North Africa where green cities once stood. There were gardens, trees and grass. But now these places are like deserts. Scientists began to study this land find out what happened. Many of them believe that the land died when the trees were cut down.

　　Trees help other plants grow. Tree roots hold the soil in place. They keep the soil from blowing away. In forests, leaves on the ground keep rainwater from running off. Trees near farms protect growing plants from strong winds.

　　Once there were hundreds of farms in the southwestern United States. Then the farms turned into fields of dry dust. Trees might have saved these farms. But few trees grow in the dry southwest.

　　Now we try to save trees. In many forests when a tree is cut down, a new tree is planted in its place. We don't want the land to die.

（1）Places where green cities once stood are now turned into _________.

[　　]

（2）After we have read this passage, we know that _________.

[　　]

A. tree roots blow soil away

B. men can destroy the land

C. trees grow only in sandy land

D. men can change trees into other plants

（3）“Trees are helpful for other plants to grow” means __________.

[　　]

A. trees keep other plants green

B. trees help other plants grow

C. trees hold other plants down

D. trees protect other plants from being cut down

（4）Which is right?

[　　]

A. Trees are important to the land.

B. Farms are better than Cities.

C. Trees can destroy the land

D. There are no deserts in Africa.

（5）How can we save trees?

[　　]

A. Trees mustn't be cut down.

B. We must try our best to make trees evergreen

C. When we cut a tree, we must plant a new tree in its place.

D. Trees must grow for so many years.

阅读理解

　　Once there were hundreds of farms in the southwestern United States. Then the farms turned into fields of dry dust. Trees might have saved these farms. But few trees grow in the dry southwest.

　　Now we try to save trees. In many forests when a tree is cut down, a new tree is planted in its place. We don't want the land to die.

（1）Places where green cities once stood are now turned into _________.

[　　]

（2）After we have read this passage, we know that _________.

[　　]

A. tree roots blow soil away

B. men can destroy the land

C. trees grow only in sandy land

D. men can change trees into other plants

（3）“Trees are helpful for other plants to grow” means __________.

[　　]

A. trees keep other plants green

B. trees help other plants grow

C. trees hold other plants down

D. trees protect other plants from being cut down

（4）Which is right?

[　　]

A. Trees are important to the land.

B. Farms are better than Cities.

C. Trees can destroy the land

D. There are no deserts in Africa.

（5）How can we save trees?

[　　]

A. Trees mustn't be cut down.

B. We must try our best to make trees evergreen

C. When we cut a tree, we must plant a new tree in its place.

D. Trees must grow for so many years.

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

　　Trees are one of the oldest living things on earth．They play a very important role for human’s existence．Trees are important for life as they provide food and oxygen．The importance of tree continues to increase and more benefits of trees are being discovered as their role expands to satisfy the needs created by our modern lifestyles．The forests and trees that are planted by humans work together with us to make the world look better and more beautiful．　　1　　 Some of them are as follows．

　　Trees can clean soil and control soil erosion．Poisonous chemicals and pollutants from various factories enter into the soil, thus causing soil pollution．　　2　　 Soil erosion is a serious problem that causes degradation(退化)of soil and leads to floods．Trees and plant roots bind the soil and thus reduce soil erosion．Also they conserve rainwater and reduce sediment(沉积)deposits．

　　Trees produce oxygen．Trees play an important role in reducing the greenhouse gases．They consume carbon dioxide and produce oxygen．　　3　　 A fully grown tree produces oxygen which is sufficient for10 people for a complete year．Also, they act as filters of the air that we breathe．

　　Trees are of commercial importance．Trees fulfill the need of fuel for cooking in many areas around the world．Trees also provide timber for furniture and hundreds of household items．Wood pulp is used for making paper in industries．　　4　　 Some trees are even used to make medicines．

　　　　5　　 They provide shelter and food for a number of animal species across the globe．Trees are especially important as they form green corridors connecting habitats with each other and with the countryside beyond．

A．This lowers global warming．

B．Trees have beautified our planet．

C．Trees act as the habitat for wild animals．

D．In face, trees play different roles in our environment．

E．Without trees our planet cannot be considered a place for living．

F．Also, trees produce a number of fruits and nuts which are sold at market．

G．Trees have the ability to store them or change them into less harmful forms．

When I was growing up, I had an old neighbor named Dr. Gibbs. He didn’t look like any doctor I’d ever known. He never yelled at us for playing in his yard. I remember him as someone who was a lot nicer than most of the adults in our community.

When Dr. Gibbs wasn’t saving lives, he was planting trees. His house sat on ten acres, and his life’s goal was to make it a forest.

The good doctor had some interesting theories concerning plant care and growth. He never watered his new trees, which flew in the face of conventional wisdom. Once I asked why. He said that watering plants spoiled them so that each successive tree generation would grow weaker and weaker. So you have to make things rough for them and weed out(淘汰) the weaker trees early on. He talked about how watering trees made for shallow roots, and how trees that weren’t watered had to grow deep roots in search of moisture. I took him to mean that deep roots were to be treasured.

So he never watered his trees. He planted an oak and, instead of watering it every morning, he beat it with a rolled-up newspaper. Smack! Slap! Pow! I asked him why he did that, and he said it was to get the tree’s attention.

Dr. Gibbs passed away a couple of years after I left home. Every now and again, I walked by his house and looked at the trees that I’d watched him plant some twenty-five years ago. They’re extremely tall, big and robust since they have deep roots now. However, the trees in my garden trembled in a cold wind although I had watered them for several years.

It seems that adversity(逆境) and suffering benefit these trees in ways comfort and ease never could. I stood there deep in thought.

Every night before I go to bed, I check on my two sons. I stand over them and watch their little bodies, the rising and falling of life within. I often pray for them. Mostly I pray that their lives will be easy. But I think that it’s time to change my prayer(祷词) because now I know my children are going to encounter hardship.

According to Dr. Gibbs’ theories, trees will become weaker if they _________.

A. are lack of care　　　　　B. are watered C. are weeded out　　　　　D. are beaten

According to Para.3 and Para.4, we can infer that Dr. Gibbs’ motto(座右铭) may be .

A. “Seeing is believing” B. “Put everything in proper use”

C. “Practice makes perfect” D. “No pain, no gain”

The underlined word robust in Para.5 most probably means _________.

A. strong　　 B. strange　　 C. deep　　 D. old

Which of the following may be the author’s best prayer for his two sons now?

A. I wish them strong wings, with which they can fly higher and touch the sky.

B. I wish them nice fortune so that they can meet people like Dr. Gibbs in the future.

C. I wish them deep roots into the earth since the rains fall and the winds blow often.

D. I wish them great shades under the tree since the sunlight is always sharp and bitter.

Which of the following can be the best title of this passage?

A Nice Doctor B. The Deep Roots C. Adversity and Suffering D. My Childhood Memory

　　Forests have always been useful and important to man who makes use of them in many ways. Every day trees are serving man everywhere. Trees supply man with fruits and building materials in the form of wood. Without trees it would be impossible to build houses, boats, bridges and so on. Furniture such as desks, chairs and beds is made of wood. Trees can stop man from terrible heat. They're also useful in preventing good and rich top soil from being washed away during heavy rains.

　　If there were no trees, heavy rains would wash away the rich top soil that is so important to plants. The result is that the land will become a desert. There are plenty of desert areas in the world. A long time ago these desert areas used to be very rich areas, but man in the past had no enough knowledge about science of nature, they cut down too many trees in the area where they lived and never planted new ones. By and by the rich top soil was blown and washed away by strong winds and heavy rains. In the end the rich land changed into useless deserts where nothing could grow.

According to the passage, ______.

　　　　A. a long time ago, man didn't know how to make use of wood

　　　　B. trees are not as useful as they were in the past

　　　　C. trees were more found in the past than they are today

　　　　D. people have always found trees useful

　　If there were no trees, ______.

　　　　A. the land would become better　　　　B. heavy rains would be very clean

　　　　C. the rich soil couldn't be kept　　　　 D. there wouldn't be any plants

　From the passage, we know that man must ______.

　　　　A. do nothing to keep the balance（平衡）of nature

　　　　B. take his best to keep the balance of nature

　　　　C. try his best to keep the balance of nature

　　　　D. do his best to stop the balance of nature

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