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(共33张PPT)
Unit 2 Saving the Earth
Topic 1 Pollution has caused too many problems.
Section C
学习目标
一、掌握以下单词： deaf, environment, print, hearing, recently, disturb等。
二、掌握以下短语，句子: not all…, be harmful to…, quite a few, recently, It’s reported that…, no better than…, do harm to…, including…
三、引导学生关注噪声污染问题，通过谈论噪声问题，让学生了解其危害。
soil pollution
water pollution
noise pollution
air pollution
litter
light pollution
pollution
water pollution
Water pollution pollutes our water.
air pollution
Air pollution is harmful to our hearts and lungs.
light pollution
Light pollution does harm to our eyes.
noise pollution
Noise pollution is harmful to our ears.
People can even go deaf.
We may lose our hearing.
We may have hearing loss.
变聋
Let’s write down the things that can make noises.
noises made by
piano
bus
cat
wind
noises made by
airplane
It makes us uncomfortable .
comfortable
uncomfortable
noises made by
It makes us unpleasant.
noisy condition
pleasant
unpleasant
noises made by
printer
when printing newspapers or books
Underline the topic sentence of the passage.
Noise is a kind of pollution.
People who work and live in noisy conditions may go deaf easily.
How does noise harm people
Read 1a and guess the meanings of the words.
1b
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
Read 1a and answer the question.
1. Where does the noise pollution come from
① noise made by printing newspaper and books
② noise from airports
③ noise caused by loud pop music
④ a loud noise in public
⑤ noise produced by cars and machines
Read 1a and answer the question.
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
unpleasant
sick
deaf
People can’t sleep well at night.
Read 1a and answer the questions.
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.
Watch and understand.
Phrases
1. 不是所有____________________
2. 变聋_____________________
3. 丧失听力_______________________
4. 据报道________________________
5. 和...一样差 _________________
6. 在公共场合_________________
7. 不但. .. 而且___________________
8. 各种各样的_______________________
9. 打扰别人___________________________
not all
go deaf
lose one’s hearing
it is reported that
no better than
in public
not only... but also
all sorts of
disturb sb
= have hearing loss
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.
If not, what about other kinds of pollution
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
3
Let’s do sth for the earth.
Be a greener person.
Key points
In today’s world, almost everyone knows air pollution is harmful to people’s health. However, not all people know noise is also a kind of pollution and is harmful to humans’ health.
People who work and live in noisy conditions often go deaf. For example, many of the workers who print newspapers and books lose their hearing. Quite a few people living near airports also have hearing loss. Recently, it is reported that many teenagers in America can hear no better than 65-year-old people do, because these young people always listen to loud pop music.
Making a loud noise in public is also a kind of pollution. It not only disturbs others but also does great harm to people’s hearing. Cars and machines also produce too much noise. Such pollution makes people feel uncomfortable and unpleasant, and it can even cause them to become sick or deaf. Nowadays, many countries are trying to solve all sorts of environmental problems, including noise pollution.
not all… 不是所有的，表示部分否定
not 与 every, both, all等连用时表示部分否定。
表示全部否定的词有：neither, none, nothing, nobody, no one 等。
并非所有的都是不好的。
________________________________
他们说的没什么是正确。
_________________________________________
Not all of it is bad.
None of what they said was right.
Key points
In today’s world, almost everyone knows air pollution is harmful to people’s health. However, not all people know noise is also a kind of pollution and is harmful to humans’ health.
People who work and live in noisy conditions often go deaf. For example, many of the workers who print newspapers and books lose their hearing. Quite a few people living near airports also have hearing loss. Recently, it is reported that many teenagers in America can hear no better than 65-year-old people do, because these young people always listen to loud pop music.
Making a loud noise in public is also a kind of pollution. It not only disturbs others but also does great harm to people’s hearing. Cars and machines also produce too much noise. Such pollution makes people feel uncomfortable and unpleasant, and it can even cause them to become sick or deaf. Nowadays, many countries are trying to solve all sorts of environmental problems, including noise pollution.
harmful adj. 对......有害的
be harmful to 对......有害
harm n. 损害；伤害，危害
do harm to 对.....造成伤害
Key points
In today’s world, almost everyone knows air pollution is harmful to people’s health. However, not all people know noise is also a kind of pollution and is harmful to humans’ health.
People who work and live in noisy conditions often go deaf. For example, many of the workers who print newspapers and books lose their hearing. Quite a few people living near airports also have hearing loss. Recently, it is reported that many teenagers in America can hear no better than 65-year-old people do, because these young people always listen to loud pop music.
Making a loud noise in public is also a kind of pollution. It not only disturbs others but also does great harm to people’s hearing. Cars and machines also produce too much noise. Such pollution makes people feel uncomfortable and unpleasant, and it can even cause them to become sick or deaf. Nowadays, many countries are trying to solve all sorts of environmental problems, including noise pollution.
It was reported that... 据报道…
It is said that ... 据说…
It is believed that ... 人们相信…
It is well known that ... 众所周知…
Key points
In today’s world, almost everyone knows air pollution is harmful to people’s health. However, not all people know noise is also a kind of pollution and is harmful to humans’ health.
People who work and live in noisy conditions often go deaf. For example, many of the workers who print newspapers and books lose their hearing. Quite a few people living near airports also have hearing loss. Recently, it is reported that many teenagers in America can hear no better than 65-year-old people do, because these young people always listen to loud pop music.
Making a loud noise in public is also a kind of pollution. It not only disturbs others but also does great harm to people’s hearing. Cars and machines also produce too much noise. Such pollution makes people feel uncomfortable and unpleasant, and it can even cause them to become sick or deaf. Nowadays, many countries are trying to solve all sorts of environmental problems, including noise pollution.
no better than = almost as bad / badly as
不比…好，和…一样糟
她的英语几乎与我一样的差。
____________________________________
Her English is no better than mine.
Key points
In today’s world, almost everyone knows air pollution is harmful to people’s health. However, not all people know noise is also a kind of pollution and is harmful to humans’ health.
People who work and live in noisy conditions often go deaf. For example, many of the workers who print newspapers and books lose their hearing. Quite a few people living near airports also have hearing loss. Recently, it is reported that many teenagers in America can hear no better than 65-year-old people do, because these young people always listen to loud pop music.
Making a loud noise in public is also a kind of pollution. It not only disturbs others but also does great harm to people’s hearing. Cars and machines also produce too much noise. Such pollution makes people feel uncomfortable and unpleasant, and it can even cause them to become sick or deaf. Nowadays, many countries are trying to solve all sorts of environmental problems, including noise pollution.
not only A but also B 不但…而且…，谓语动词由B决定
Not only you but also I ______ (be)from China.
Not only I but also you ______ (be)from China.
am
are
长句分析:
People who work and live in noisy conditions often go deaf.
缩句:
People go deaf. 人会变聋。
什么样的人:
who work and live in noisy conditions 生活在吵闹环境中的
当adj，修饰people，做定语
People who work and live in noisy conditions often go deaf.
定语从句
生活在吵闹环境中的人经常会变聋。
长句分析:
…many of the workers who print newspapers and books lose their hearing.
缩句:
Workers lose their hearing. 工人丧失听力。
什么样的工人:
who print newspapers and books 印刷报纸和书籍的
当adj，修饰workers，做定语
…many of the workers who print newspapers and books lose their hearing.
定语从句
很多印刷报纸和书籍的工人丧失听力。
Exercises
( ) 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
Exercises
用所给单词的正确形式填空。
1. They are doing their homework . 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
Summary
We learn
1. New words : deaf, print, hearing, loss, recently, disturb,sort, uncomfortable, unpleasant, sentence, meaning
2. New phrases: go deaf, lose one’s hearing, hearing loss, no better than, do harm to
3. New sentences:
However, not all people know noise is also a kind of pollution is
harmful to human’s health.
We can
Find out the topic sentence to understand the content of a paragraph.

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