仁爱科普版九年级上册 Unit 2 Topic 1 Pollution has caused too many problems. Section C 课件 (共16张PPT)

(共16张PPT)
Pollution has caused too many problems.
Section C
How did Peter feel last night Was he all right
Did he have a good sleep
What was it possible for him to do next
Why couldn’t he fall asleep
Noise
Not all people know noise is also a kind of pollution .
n. 种类 v. 把……分类
There are all sorts of noises.
a sort of… , all sorts of …
They make us uncomfortable
and unpleasant.
adj. 使人不舒服的
adj. 令人不快的
Noise is bad for humans’ health.
is harmful to
be bad for – be harmful to – do harm to
不是所有的，表示部分否定
Noise
pollution
Underline the topic sentence of the passage in 1a.
Try to find out the topic sentence to understand the content of a paragraph.
Read 1a and complete the following tasks.
Noise is also a kind of pollution and is harmful to human’s health.
1. produce A. to hurt someone
2. deaf B. a type or a kind
3. print C. not be able to hear
4. harm D. to grow or make
something
5. sort E. to put words or
pictures onto paper
using a machine2
1b Read 1a and match the words with their meanings.
go deaf 变聋
lose one’s hearing 丧失
听力
have hearing loss
Watch the flash and answer questions in 1c.
2. How does noise harm people’s health
3. Which phrase has the same meaning as “is harmful to”
4. Which sentence shows that many teenagers’ hearing in America is not good
5. Why is the hearing of many young Americans not good
2. How does noise harm people’s health
a. People often ____ ______.
b. People often feel ____________ and __________.
c. People may become _____ or _____.
go deaf
uncomfortable
sick
unpleasant
deaf
3. Which phrase has the same meaning as “is harmful to”
4. Which sentence shows that many teenagers’ hearing in America is not good
5. Why is the hearing of many young Americans not good
Answer the questions.
“do harm to”.
Many teenagers in America can hear no better than 65-year-old people do.
Because they always listen to loud pop music.
a. Not all people know 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.
Change the following sentences into the ones that have the same meanings.
Not everyone
/ Some people
as well
as weak as
2 Complete the following passage with the correct form of each word.
Noise is a kind of _________ (pollute). Cars and machines produce too much noise. It makes people feel ___________ (comfortable) and __________ (pleasant). It also does great ______ (harm) to people’s _________ (hear). Noise is very _____ (harm) to human’s ______ (healthy).
pollution
uncomfortable
unpleasant
harm
hearing
harmful
health
air pollution
light pollution
water pollution
soil pollution
noise pollution
3 Choose one kind of pollution and discuss it in groups. The following questions may help you.
1. What is … pollution
2. What makes the … pollution
3. What problems does it cause
4. In what way is it harmful to people’s life
5. What has been done to solve these problems
…
4 Write a short report about a kind of pollution based on 2 and 3. The topic sentence of each paragraph is given below.
… pollution is…
… pollution is harmful to people’s health…
The government has tried many ways to solve the problem…
Let us try our best to protect the environment and make our home clean, quiet and beautiful !
1. Find out the topic sentence to understand the
content of a paragraph.
2. Write a passage according to the topic sentences.
1. Some words:
deaf, print, hearing, loss, recently, disturb,sort,
uncomfortable, unpleasant, sentence, meaning
2. Some phrases:
go deaf, lose one’s hearing, hearing loss,
no better than, do harm to
3. Some sentences:
However, not all people know noise is also a kind
of pollution is harmful to human’s health.
Thank you.