Unit2 Topic1 Pollution has caused too many problems.SectionC 课件（18张）

Unit2 Saving the Earth
Topic1 Pollution has caused too many problems

Speak out the names of the pollution.
air pollution
light pollution
litter
water pollution
soil pollution
noise pollution
noise pollution
Noise is a sort/kind of pollution.
There are all sorts/kinds of noises.
They make us uncomfortable and unpleasant.
n. 种类；
v. 把……分类
adj. 使人不舒服的
adj. 令人不快的
noises made by
Let’s write down the things that can make noises.
piano
bus
cat
wind
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.
Read 1a and complete the following tasks.
Noise is also a kind of pollution and is harmful to human’s health.
Noise Pollution
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?
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.
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
1b Read 1a and match the words with their meanings.
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
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
Has noise pollution caused you any problems? If yes, share your feelings with your classmates.
What about other kinds of 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…
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.
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.
disturb
harm
sorts
environmental
lost his hearing
Not all
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.
Homework
1. Read 1a.
2. Write a report according to Part 4.
3. Finish Section C in your workbook.
4. List Grammar and Functions in
this topic.
5. Preview Section D.
Thank you!