The purpose of this passage is ______.
A: to give advice as to how to prevent hearing loss
B: to define the effects of noise on human behavior
C: to warn people of the danger of noise pollution
D: to tell the difference between noise and sound
A: to give advice as to how to prevent hearing loss
B: to define the effects of noise on human behavior
C: to warn people of the danger of noise pollution
D: to tell the difference between noise and sound
举一反三
- People waiting at an airport ______. A: enjoy hearing airplanes taking off and landing B: are usually not troubled by the noise C: can easily tell sound from noise D: are often physically affected by the noise
- People waiting at an airport______. A: enjoy hearing airplanes taking off and landing B: are usually not troubled hy the noise C: can easily tell sound from noise D: are often physically affected by the noise
- From the last sentence of the passage we can learn that ______. A: we can get public noise under control if we effectively draw attention to it B: sometimes we have to shout loudly so that others can hear us C: shouting is a chief cause of noise pollution nowadays D: it is important to warn people of the danger of noise pollution
- The first paragraph tries to tell us how to control noise pollution by ______. A: taking measures to reduce human exposure to noise B: using or replacing with quieter products C: appealing to Government to set up laws D: people's serf consciousness
- Noise differs from sound in that ______. A: noise interferes with the task being done B: noise is a special type of loud sound C: noise is usually unavoidable in big cities D: noise can be defined more precisely than sound