unit7--quiz

Unit 7 Quiz

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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(1)that have found their way into the air. Air pollution includes all pollutants found in the

S2(2) . These dangerous substances can be either in the form of gases or S3(3).

Air pollution can be found both outdoors and indoors. Pollutants can

be S4(4)inside buildings, causing indoor pollution that S5(5)for a long time.

The sources of air pollution are both natural and

S6(6). As one might expect, humans have been producing increasing amounts of pollution as time has

S7(7), and they now account for the majority of pollutants released into the air.

Air pollution has been a problem throughout history.

S8(8).

The effects of air pollution are diverse and numerous.

S9(9), 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(10).

Your answer Correct answer

(1) chemicals chemicals