Unit 2 Topic 1 Section C课件+内嵌音视频（仁爱科普版九年级上册）

Unit 2 Saving the Earth
Topic 1 Pollution has caused too many problems.
Section C
Learn some new words and phrases.
Learn some useful expressions.
Know about noise pollution.
Learn to write a passage about pollution.
What do you know about noise?
Noise is a sort/kind of pollution.
It's harmful to people's health.
It makes us uncomfortable and unpleasant.
What do you think of noise?
What kinds of noise pollution have you met?
Let’s write down the things that can make noises.
noises made by
piano
bus
cat
wind
1a Read and understand.
1a Read and understand.
1b Read 1a and match the words with their meanings.
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 machine
1. Underline the topic sentence of the passage
in 1a.
Give a proper title to this passage.
Try to find out the topic sentence to understand the content of a paragraph.
Noise is also a kind of pollution and is harmful to human’s health.
Noise Pollution
1c Read 1a again and complete the following tasks.
2.How does noise harm people’s health?
a. People often ____ ______.
b. People often feel ____________ and
__________.
c. People may become _____ or _____.
d. Your point:
_____________________________.
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?
“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.
People who work and live in noisy conditions
often go deaf.
在嘈杂的环境中工作和生活的人容易变聋。
定语从句
e.g. Beethoven was deaf.
go deaf 变聋
e.g. He _____ _____ because of the traffic accident.
went deaf
deaf adj. 聋的
…many of the workers who print newspapers
and books lose their hearing.
很多印刷报纸和书籍的工人丧失听力。
定语从句
e.g. Look! The man is printing
something.
lose one’s hearing 丧失听力
a printer
hearing n. 听力，听觉
print v. 印刷
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.
Not everyone
/Some people
as
well
as weak as
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
2 Complete the following passage with the correct
form of each word.
noise pollution
WHAT
WHY
HOW
What is noise pollution?
Why is it a kind of pollution?
How to deal with it?
Who is it harmful to?
What does it cause?
Has noise pollution caused you any problems?
If yes, share your feelings with your classmates.
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…
1. Find out the topic sentence to understand the
content of a paragraph.
2. Write a passage according to the topic sentences.
We can:
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.
We learn:
单项选择
( ) 1. —The little girl was born ____, and she can’t hear anything.
—Oh, I’m sorry to hear that.
A. lazy B. blind C. deaf D. lovely
( ) 2. — What happened?
— There is a girl_____ on the street. She couldn’t find her mother.
A. cry B. crying C. to cry D. cries
( ) 3. The ______ boy tried to climb up the tree, but he failed.
A. 5-year-old B. 5-years-old C. 5 year old D. 5 years old
C
B
A
用所给单词的正确形式填空。
1. They are doing their homework carefully. You’d better not
________(disturb) them.
2. It is known that smoking does great _______(harm) to us.
3. They had all ______ (sort) of juice to drink at the party last night.
4. Our government has solved some _____________ (environment) problems.
disturb
harm
sorts
environmental
改为同义句。
1. The boy had hearing loss when he was born.
The boy _____ _____ _________ when he was born.
2. Some students go to school on Saturdays.
____ _____ students go to school on Saturdays.
lost his hearing
Not all
1. Write a report according to Part 4.
2. Preview Unit 2 Topic 1 Section D.