新视野大学英语视听说教程(第二版)3册quiz3(4)

Part 2 Compound dictation

(每小题：分)

Directions: Listen to the passage 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.

Questions 1 to 10 are based on the following passage or dialog.

Every day, the average person breathes in about 20,000 liters of

air. Every time we breathe, we risk inhaling dangerous (1)

Air pollution includes all pollutants found in the (2)

Air pollution can be found both outdoors and indoors. Pollutants

can be （S4）(4)

The sources of air pollution are both natural and (6)

producing increasing amounts of pollution as time has (7)