九上U2T1SC.ppt

Topic 1 Pollution causes too many problems.
Section C
Unit 2 Saving the Earth
Do you like it? Why?
Do you think noise is a kind of pollution?
Can you tell me any kinds of
noise pollution?
printing
traffic
airport
Loud music
Discuss these phrases, check
which is pollution and talk about
what kind of pollution it is.
Producing electricity by wind
Talking loudly after class
Laughing loudly at the cinema Smoking in public
Playing loud rock music at midnight
Burning wood ,gas, oil and coal
Listen and answer the following questions.
Does the writer think noise is a kind of pollution?
Yes, he does.
录音p29-1a
Is it harmful to human beings’ health?
Yes, it is.
…..有害





….一样坏 不比….好





be harmful to=do harm to
not all
go deaf
quite a few
hearing loss
It is reported that……
no better than
make a loud noise in public
disturb others
cause sb. to do sth.
try to do sth.
all sorts of
1b Reading 1a again and then finish the following tasks.
Give a proper title to this passage. _________________
Change the following sentences into ones that have the same meanings.
Not all people know that noise is also a kind of pollution.
______ __________ know(s) noise is a kind of pollution ____ ____.
b. Many teenagers in America can hear no better than 65-year-old people do.
In America, many teenagers’ hearing is ______________ 65-year-old people’s.
Noise Pollution
Not everyone
as well
as weak as
3. Which of the following can do harm to people’s hearing? Check( )them.
( )a. printing newspapers and books
( )b. living near airports
( )c. throwing rubbish around
( )d. making a lot of noise in public
( )e. living very close to a busy street
( )f. listening to loud music
1C Pair work
Discuss which paragraphs of 1a the following statements belong to.
People working in a sawmill for a long time may go deaf.