新视野大学英语视听说教程(第二版)3册quiz3(5)

progressed

, and they now account for the majority of

pollutants released into the air.

Air pollution has been a problem throughout history. (8)

Even in Ancient

.

The effects of air pollution are diverse and numerous. (9)

Air pollution c

, 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. (10)

.

Part 2 Compound dictation (每小题: 2 分; 满分：20 分)

小题得分对错我的答案客观

1.2chemicals chemicals

2.2atmosphere atmosphere

3.2particles particles

4.2trapped trapped

5.2lasts lasts

6.2human-based human-based

7.2progressed progressed

8.2Even in Ancient Rome people complained Even in Ancient Rome people complained