A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely falling below 16℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover, these areas would reflect more heat into the atmosphere，warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters all over the world.
In the past hundred years, humans have begun destroying rainforests in search of three major resources : land for crops, wood for paper and other products, land for raising farm animals. This action affects the environment as a whole. For example，a lot of carbon dioxide in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit. There are two main reasons for this. Firstly, when people cut down trees, generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run it actually reduces the world’ s wood supply.Rainforests are often called the world’s drug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than 1% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests.
1. Rainforests can help to adjust the climate because they________.
A. reflect more heat into the atmosphere
B. bring about high rainfall throughout the world
C. rarely cause the temperature to drop lower than 16℃
D. absorb the heat from the sun, reducing the effect of heat from the sun on the earth
2. What does the word “this” underlined in the third paragraph refer to?
A. We will lose much more than we can gain.
B. Humans have begun destroying rainforests.
C. People have a strong desire for resources.
D. Much carbon dioxide comes from burning rainforests.
3. It can be inferred from the text that________.
A. we can get enough resources without rainforests
B. there is great medicine potential in rainforests
C. we will grow fewer kinds of crops in the gained land
D. the level of annual rainfall affects wind patterns
4.. What might be the best title for the text?
A. How to Save Rainforests?
B. How to Protect Nature?
C. Rainforests and the Environment.
D. Rainforests and Medical Development.
Animals are natural resources that people have wasted all through our history.
Animals have been killed for their fur and feathers, for food, for sport, and simply because they were in the way. Thousands of kinds of animals have disappeared from the earth forever. Hundreds more are on the danger list today. About 170 kinds in the United States alone are considered in danger.
Why should people care? Because we need animals. And because once they are gone, there will never be any more.
Animals are more than beautiful or interesting or a source of food. Every animal has its place in the balance of nature. Destroying one kind of animal can create many problems.
For example, when farmers killed large numbers of hawks(鹰), the farmers’ stores of corn and grain were destroyed by rats and mice. Why? Because hawks eat rats and mice. With no hawks to keep down their numbers, the rats and mice multiplied(繁殖) quickly.
Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals in danger.
Quite a few countries have passed laws. These laws forbid the killing of any animal or plant on the danger list. Slowly, the number of some animals in danger is growing.
1.Why do people kill animals?
A. They kill animals for something they need.
B. They kill animals to raise some money.
C. Animals destroy their natural resources.
D. Animals create many problems.
2.Animals are important to us mainly because ______.
A. they give us a source of food
B. they are beautiful and lovely
C. they keep the balance of nature
D. they give us a lot of pleasure
3.Which of the following is NOT true?
A. People care much about animals because they need them.
B. Once a certain kind of animal is gone forever, there will never be any more.
C. Killing all rats and mice may cause some new problems.
D. People must not kill any animal or plant.
Once upon a time there lived an old man in a nice cottage with a large garden. The old man was seen his flowers all the time. They were so well-tended that every passer-by could not but for a glance.
One day a young man went by the garden. He gazed at the splendid garden, in admiration at the beauty of these sceneries. Then, suddenly he the old gardener was blind. , the young man asked, “Why are you busy tending these flowers every day which you can’t in fact?” The old man smiled and answered that “ I can tell you reasons. First I was a when I was young, and I really like this job. Second, although I can’t see these flowers, yet I can them. Third，I can smell sweetness of them. As to the last one, that’s .
“Me? But you don’t know me,” responded the young man .
“Yeah, it’s that I don’t know you. But I know everyone knows flowers and would never them down. I know the beauty of my garden will get many people into a good . In the meantime, it also a chance to me to have a word with you here and to enjoy the happiness these flowers have brought us.”
The old man’s astonished me. The blind man grows flowers and them as a link of minds so as to make enjoy the sunshine in spring. Isn’t it one kind of happiness？
I believe every flower has with which they can see the kindness of the man’s heart. The blind man grows flowers in his heart. Though to see the beauty of blossoming, he surely can hear the voice of it, I suppose.
1.A. loving B. watering C. tending D. planting
2.A. stop B. stay C. live D. run
3.A. kept B. dropped C. fallen D. lost
4.A. realized B. noticed C. felt D. thought
5.A. Excited B. Frightened C. Shocked D. Satisfied
6.A. feel B. see C.hear D.eat
7.A. one B. two C. three D. four
8.A. gardener B. teacher C. farmer D. painter
9.A. taste B. plant C. touch D. appreciate
10.A. it B. me C. them D. you
11.A. with pleasure B. in surprise C. with hope D. in anger
12.A. true B. possible C. a pity D. a shame
13.A. put B. turn C. get D. knock
14.A. mind B. life C. future D. mood
15.A. introduces B. offers C. stands D. leaves
16.A. words B. behavior C. story D. attitudes
17.A. treats B. acts C. works D. serves
18.A. anybody B. somebody C. everybody D. nobody
19.A. ears B. soul C. eyes D. heart
20.A. refusing B. trying C. pretending D. Failing
We will be shown around the city: schools, museums, and some other places, _____ other visitors seldom go.
A. what B. which
C. when D. where
--- Is Bob still performing?
--- I’m afraid not. He is said _______ the stage already, as he has become an official.
A. to have left B. to leave
C. to have been left D. be leaving
．_______ we can afford it, we wouldn’t go abroad for our vacation.
A. As long as B. Whenever
C. Even though D. In case
