quiz7答案

Unit 7 Quiz
单元小测验





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Part I
Directions: Listen to the short dialogs, then choose the correct answers to the questions. You will hear the recording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing to check your answers.
1. (Listen to the audio recording for the question.)
A. It is the biggest problem.
B. It is the second most important problem.
C. It is important but not the most urgent problem.
D. It is not important.
Your answer Correct answer
C C
2. (Listen to the audio recording for the question.)
A. The wildfire in Spain is a good thing.
B. The wildfires are changing the climate.
C. Her son studies environmental protection in college.
D. Her son is protecting the environment.
Your answer Correct answer
D D
3. (Listen to the audio recording for the question.)
A. To protect the environment.
B. To write a paper on the environment.
C. To do a good job for his classmate.
D. To make a mess of his classmate's work.
Your answer Correct answer
B B
4. (Listen to the audio recording for the question.)
A. Both the man and woman think it should be adopted.
B. Neither the man nor the woman thinks it should be adopted.
C. Only the man thinks it should be adopted.
D. Only the woman thinks it should be adopted.
Your answer Correct answer
A A
5. (Listen to the audio recording for the question.)
A. The same as the man's.
B. The environment is hopeless.
C. The environment is improving.
D. The environment is free from problems.
Your answer Correct answer
C C

Part II
Directions: Listen to the passage(s) three times. When the passage is read for the first time, listen for the general idea. When the passage is read for the second time, fill in the blanks numbered from S1 to S7 with the exact words you hear. For blanks numbered from S8 to S10, write down either the exact words you hear or the main points in your own words. When the passage is read for the third time, check your answers.
Every day, the average person breathes in about 20,000 liters of air. Every time we breathe, we risk inhaling dangerous S1 that have found their way into the air.

Air pollution includes all pollutants found in the S2 . These dangerous substances can be either in the form of gases or S3.

Air pollution can be found both outdoors and indoors. Pollutants can be S4 inside buildings, causing indoor pollution that S5 for a long time.

The sources of air pollution are both natural and S6. As one might expect, humans have been producing increasing amounts of pollution as time has S7, and they now account for the majority of pollutants released into the air.

Air pollution has been a problem throughout history. S8.

The effects of air pollution are diverse and numerous. S9,

and severely affects the natural ecosystem.

Because it is located in the atmosphere, air pollution is able to travel easily. As a result, air pollution is a global problem and has been the subject of global cooperation and conflict.

Some areas now suffer more than others from air pollution. S10.

Your answer Correct answer
(1) chemicals chemicals
(2) atmosphere atmosphere
(3) particles particles
(4) trapped trapped
(5) lasts lasts
(6) human-based human-based
(7) progressed progressed
(8) Even in Ancient Rome people complained about smoke put into the atmosphere
(9) Air pollution can have serious consequences for the health of human beings
(10) Cities with large numbers of automobiles or those that use great quantities of coal often suffer most severely from air pollution problems

Part III
Directions: Listen to the following recording, then choose the correct answers to the questions. You will hear the recording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing to check your answers.
1. Why did the number of pandas drop sharply this century?
A. Widespread forest fires.
B. The change of bamboo forests into farmland.
C. The global warming.
D. Increased hunting.
Your answer Correct answer
B B
2. What is the strange nature of giant pandas mentioned in the passage?
A. Peaceful.
B. Cheerful.
C. solitary.
D. Lonely.
Your answer Correct answer
C C
3. Why is the breeding program not a success?
A. The temperature has changed a lot.
B. The rainfall has changed a lot.
C. The panda does not like to live in zoos.
D. The panda likes to live alone.
Your answer Correct answer
D D
4. Why do people debate the use of cloning in conservation?
A. Because this technology is up-to-date.
B. Because this technology does not involve a moral issue in animals.
C. Because the breeding method is unsuccessful.
D. Because the breeding method must be combined with cloning.
Your answer Correct answer
C C
5. What would be the best title for the passage?
A. How to save the giant panda.
B. The danger of extinction of the panda.
C. The importance of the protection of the panda.
D. Success in protecting the panda.
Your answer Correct answer
A A

Part IV
Directions: Choose the right answer.
1. The Chinese government has been encouraging people to plant trees along the edges of the Gobi Desert. Now those trees act as wind _______________.
A. bars
B. barriers
C. prevention
D. destruction
Your answer Correct answer
B B
2. Government organizations are helping people to dispose safely _______________ old refrigerators or, in the case of cars, to upgrade their air conditioning.
A. away
B. off
C. of
D. out of
Your answer Correct answer
C C
3. In 2003 the hole in the ozone layer shrank by 20 percent, so there's no reaso

n _______________.
A. to panic
B. to get panic
C. to be panic
D. panicking
Your answer Correct answer
A A
4. The students are more aware of all the environmental problems that are _______________.
A. happening on
B. getting along
C. getting on
D. going on
Your answer Correct answer
D D
5. If people throw cigarette butts on the floor, they should _______________.
A. fine
B. be fine
C. be fined
D. get fine
Your answer Correct answer
C C