(C)

Our factories and homes burn coal and oil. Every year we have forest fires somewhere. Many scientists believe that the weather is changing.

The earth will perhaps be warmed by about 7℃ at the South Pole(极) and the North Pole. The ice will be melt(融化). The sea level(平面) will rise by about 7 meters. As a result, water will cover cities like London, Tokyo and New York. Some ports(港口) and towns along the coasts will disappear under water.

Some other scientists think that the dust, smoke and pollution from coal, wood and oil fires will block out(封闭) the ultraviolet rays(紫外线). Then the earth will become colder and great sheets of ice will cover Europe and North America.

When chemicals in the air mix with rain, we have acid(酸) rain. Acid rain can bring us great harm. It destroys(破坏) forests and kills life in lakes and rivers.

People are beginning to see how serious the problem is. They find it important to work with nature instead of against it. They are trying to save the earth in many different ways. But one of the most important things to do is to make people understand that saving the earth is saving ourselves.

(　 ) 36. Some scientists believe that 　　　.

　　　　 A. the earth is growing warmer　　　　　　　 B. we need coal in our forests

　　　　 C. we can find oil in our forests　　　　　　 D. we have to burn down the forests every year

(　 ) 37. Ice at the poles will 　　　　if the earth gets warmer.

　　　　 A. become thicker by seven meters　　　　 B. cover cities like London and Tokyo

　　　　 C. raise the sea level by 7 degrees　　　　　 D. become water and make the sea rise

(　 ) 38. Acid rain can 　　　.

　　　　 A. bring great changes in our weather　　 B. kill pests(害虫) in lakes and forests

　　　　 C. kill the fish in rivers and lakes　　　　　 D. cover Europe and North America

(　 ) 39. What can we learn from the third paragraph?

A. The dust together with pollution from coal, wood and oil fires will bring us more heat from the sun.

B. The ultraviolet rays will come more because of the dust and pollution from fires.

C. According to the scientists, the change in weather hardly has anything to do with the pollution.

D. As a result of the dust and pollution from coal, wood and oil fires, the earth will become colder.

(　 ) 40. Which sentence is TRUE?

A. The weather is changing just because of the acid rain.

B. People have come to know the importance of working with nature.

C. All the scientists agree that our earth is sure to become warmer and warmer.

D. The sea level will rise if the earth gets colder.

Ⅴ. 词汇。(10分)

(A)根据句意及首字母提示，补全单词。

(B)

The students were having their chemistry class. Miss Li was telling the children what water was like. After that, she asked her students, “What is water?” No one answered for a few minutes. Miss Li asked again, “Why don’t you answer my question? Didn’t I tell you what water is like?”

Just then, a boy put up his hand and said, “Miss Li, you told us that water has no color and no smell. But where to find such kind of water? The water in the river behind my house is always black and it has a bad smell.” Most of the children agreed with him.

“I’m sorry, children,” said the teacher, “Our water is getting dirtier and dirtier. That’s a serious problem.”

根据短文内容，回答问题。

31. Why didn’t the children answer the teacher’s question at first?

32. Please use a sentence to describe what water is.　

33. Why does the water in the river have color and smell?　

34. Do you think the boy who answered the teacher’s question is stupid?　

35. Is water important for us? Why?

(A)

Stop. Listen! What do you hear? You may hear many different sounds. Some of those sounds may be noise. Noise is a loud or unwanted sound.

Noise can be caused by many kinds of machines, such as motorcycles, jet planes, farm tractors(拖拉机), rock music is also noise.

What happens to people who live near noisy machines or use them over a period of time? Doctors have found that these people have trouble in sleeping. But, most important, constant(不断的) loud noise can cause a loss of hearing.

Scientists use a unit of measure called decibel(分贝) to measure the loudness of a sound. The sound of a quiet room, for example, measures 35 decibels. Talking measures between 40 and 65 decibels. Sounds from traffic and from some rock bands can measure over 120 decibels. Noise at this high level(层次) causes the great hearing loss.

(　 ) 26. According to the passage, noise is 　　　.

　　　 　A. any kind of sound　　　　　　　　　　　　　　　　 B. a loud or unwanted sound

　 　C. all sounds that you can hear　　　　　　　　　　 D. terrible sound

(　 ) 27. A decibel is a 　　　.

　 　　　A. unit that measures sound　　　　　　　　　　　　 B. kind of noise

　 　　　C. machine that makes loud noise　　　　　　　　 D. person who hates sound

(　 ) 28. According to the passage, loud noise can 　　　.

　 A. help people to sleep better　　　　　　　　　　　 B. stop machines

　 C. cause a loss of hearing　　　　　　　　　　　　　 D. kill people

(　 ) 29. We can conclude from the passage that 　　　.

　 　　　A. noise is a serious problem　　　　　　　　　　　 B. rock music isn’t noisy

　　　 　C. noise is only from traffic　　　　　　　　　　　 D. some people hate any sound

(　 ) 30. Study that diagram below. 　　　　would be the quietest.

　　 　　A. Room A　　　　　　　 B. Room B　　　　　　　　　 C. Room C 　　　　　　　　 D. Room D　

Ⅱ. 情景交际。(5分)

从方框中选出适当的句子补全对话，其中有两项是多余的。

A: 　　11　　 　I called you, but you weren’t in your office last night.

B: I’ve been to a paper factory.

A: 　　12　　

B: I found out that the factory was pouring waste water into the river near it. The river has become very dirty. Lots of fish have been dead.

A: 　　13　　

B: Do you think we can do something?

A: 　　14　　 　We can write a story about it to the newspaper.

B: 　　15　　 　Businessmen are afraid of newspapers.

10. I can’t stand 　　　　for you so long.

A. to wait　　　　　　　 B. waiting　　　　　　　 C. waits　　　　　　　　 D. waited

9.　　　　　　　　　　　　　　　 There is a paper factory 　　　　waste water into the river nearby.

A. poured　　　　　　　　 B. pouring　　　　　　　 C. pours　　　　　　　 D. pour

8.　　　　　　　　　　　　　　　 Li Ming’s mother 　　　　for 5 years.

A. has died　　　　　　　 B. died　　　　　　　　　　 C. has been dead　 D. has dead

7.　　　　　　　　　　　　　　　 What’s more, planes or machines produce 　　　　noise.

A. much too　　　　　　 B. many too　　　　　　 C. too much　　　　　 D. too many

6.　　　　　　　　　　　　　　　 The meat has been kept in the bag for several days without being frozen. It smells 　　　

now.

A. nice　　　　　　　　　　 B. terrible　　　　　　　　 C. well　　　　　　　　 D. badly