资源简介

(共12张PPT)
Unit 2 Saving the Earth
Topic 1 Pollution has caused too many problems.
Section D
【学习目标】
总结污染的种类及危害。
Grammar
I _____ (go) there two years ago.
There ______ (be) lots of flowers and grass.
What _________________ (happen) here
I have ______ (be) like this since last week.
The flowers and grass ____________ (go)!
been
were
has happened
have gone
went
Simple Past ＆Present Perfect
Oh, what a _______!
There are several chemical factories _______ waste water into the stream.
What’s ______, the factory makes too much noise…
Noise is _________ to human’s health.
People who work and live in noisy conditions often ______ deaf.
…many teenagers in America can hear no ______ than 65-year-old people do, …
…does great _______ to people’s hearing.
Functions
shame
pouring
worse
go
harmful
better
harm
【自主探究】
一、读1a，完成表格。
二、 在文中找到并划出下面的短语 1.到处_______ 2.许多种污染______________
3.在许多方面___________
4.create air pollution_________
5.强光____________________
6.随着污染的减少___________
7.工业的发展___________________
8.导致高血压____________________
1a. Read the passage and complete the table on
Page 34. There are many kinds of pollution around us,
including air olluion, soil pllulonnoise pollution and
light pollution.They are bad for our health in manyways.
Burning gas, oil and coal creates air pollution.It
can cause sore eyes andbreathing problems. With the increase in population and the
development of industry, litter iseverywhere. It
makes our environment dirty. People put lots of
litter into the land.
In the fields, farmers use too many chemicals
which destroy the soil. Soil pollution causes
unhealthy food.
Noise pollution can make people deaf. For
example,people may lose theirhearing if they work
in a noisy place for a long time. Too much noise
can cause high blood pressure as well. Working in strong light for a long time may cause
some kinds of illnss. It makes people feel trrible
and is especially bad for eyes.
Pollution Cause Effect
air pollution burning_____, _____ and _____ _____ eyes and _________ problems
soil pollution _________ everywhere, use too many __________ ______ environment and ___________ food
noise pollution __________________
place for a long time make people _____ and cause ____________ pressure
light pollution
_______ light kinds of ___________, bad for ________
gas
oil
coal
sore
breathing
Litter is
chemicals
dirty
unhealthy
work in a noisy
deaf
high blood
strong
illnesses
eyes
【小组合作】 1. Burning gas, oil, coal creates air pollution.燃烧气体、
石油和煤都会造成空气污染。
create v. 造成，创造
creative adj. 创造性的
creation n. 创造；创造物 2. In the fields, farmers use too many chemicals which
destroy the soil.
在地里，农民使用了太多对土壤起破坏作用的化肥和农药。
3. Too much noise can cause high blood pressure as well.
噪声太大也可能导致高血压。
high blood pressure 高血压as well 也, 还
e.g. We’re going to the party tonight. Why don’t you come along as well
【课后练习】
( )1.Listen,there is a bird ____in the tree A.sing B.sings C.singing D.to sing
( )2.Julie's father____ to London last month .
He_____ there three times.
A.went;have gone B. went,has been C.has gone;went
( )3.Tom can speak Chinese,he can speak Japanese___.
A.too B.also C.as well ( )4.Pollution is harmful to health,it makes
people_______.
A.feel terrible B.to feel terrible C.feel terribly ( )5._______gas,oiland coal may cause air pollution.
A.Burn B.Burning C. Burns
( )6._______my teacher's help, I couldn't win the math competition. A. Thanks to B. Without C. Because of ( )7.She encourages her son _______to college.
A. to go B. going C. go ( )8.In the past five years,he__more than 10 novels. A. writes B. have written C. has written ( )9.Everyone should make a contribution____ our
environment. A. to protect B. in protecting C. to protecting ( )10.I have ___this camera for two weeks. A. bought B. buy C. had
Thank you.

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