Unit 2 The environment课件

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名称 Unit 2 The environment课件
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资源类型 教案
版本资源 牛津译林版
科目 英语
更新时间 2014-07-24 17:02:28

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课件40张PPT。Unit 2 The environmentWhen we talk about “the environment”, what words will come to your mind?Disaster
Pollution
Protectionforest fireearthquakedroughtfloodtyphoontsunamiSome kinds of pollution In China millions of tons of household wastes are produced everyday.Air pollutionThe automobiles are piping out all kinds of waste gas into the atmosphere.We always can see heavy smoke is piped from the tall and ugly chimneys.SandstormEverything was covered with sands.It looks like something like a bomb exploding not far away.Water pollution caused by chemicalsHuai River in China Michigan Lake in USAThe impact on human beings Many children suffer hunger.Because of pollution many children were born abnormal. The economy Readingor the environment —must we choose?a debate between an environmentalist and an economist Have you ever watched a debate or even taken part in a debate?

Do you know something about debates?Reading strategy: reading a debateWhat is the order of a debate?1. One side: present their points first
2. The other side: follow and present their
points
3. Have a discussionSpeakers in a debate will represent opposite views.The order of the debate:Lin Shuiqing presents her points.Qian Liwei presents his points.
Open discussion.1. For what reason many places have been destroyed and many plants and animals are died?
2. By how many times has the world’s population increased since 1800?
Lin Shuiqing’s viewLin Shuiqing’s view 1. For what reason many places have been destroyed and many plants and animals are died?
Because factories produce large numbers of harmful chemicals. chemical wasteharm/damageMany places have been destroyed and many animals are died.
The waste goes into the atmosphere and makes us sick.
Some flows into water, killing river and sea life.chemical wasteLin Shuiqing’s view2. By how many times has the world’s population increased since 1800?
The world’s population has grown by six times what it was in 1800.Lin Shuiqing’s viewDiscussionDiscussion What effects does the increasing population have on the environment?
1. need more land and more food (limited natural resources )
2. produce more rubbish
3. …
Lin Shuiqing’s viewproductionrecycleharmfulview?1. In Qian Liwei’s opinion, what belief do people often have?
2. Why does Qian Liwei think production should not be reduced?
3. What’s Qian Liwei’s advice about protecting the environment?
Qian Liwei’s viewQian Liwei’s view 1. In Qian Liwei’s opinion, what belief do people often have?
People often have the belief that development is bad for the environment.
2. Why does Qian Liwei think production should not be reduced?
Because jobs will be lost. People are more important than fish and trees.3. What’s Qian Liwei’s advice about protecting the environment? Qian Liwei’s view
Your opinion
?What can we do in our daily life in order to protect the environment? Using handkerchief instead of the paper napkin. Using paper bag instead of plastic bag. Do not use one-off chopsticks. Throw cans, bottles, paper and plastic into the
dustbin.
… Check the answers.Lin Shuiqing
recycling waste ___
chemical waste ___
population ___
fishing ___
water pollution ___
production ___Qian Liwei
taxes ___
recycling waste ___
factories ___
production ___
laws ___
Put the points each speaker talks about
in the correct order.64321234515With me are Ms Lin Shuiqing, from the Green Society, and Mr Qian Liwei, a business development consultant.From the speaker on the wall came the principal’s voice.
Lying on the ground was an old lady.
Attached to the leg of the pigeon was a letter.
Present at the meeting were some distinguished guests.完全倒装
Prep. phrase/Adv.+v.+n.
Doing/Done/Adj. + prep. phrase/adv. + is/are + n.
First I am talking to you today about the way vast areas of the world are damaged by chemical waste.It would be good to increase the amount of waste we recycle, and teach people ways of living that do not harm the environment.way生活方式
一个学习英语的好方法
我喜欢她笑得样子。
今天我将讲述我们的地球是如何受到破坏的。This will result in a smaller number of fish left for us to eat in the future.离下课只剩下5分钟了。
我上班去了,留他在路边哭。
他父母去世了,留他成了一个孤儿。While we damage our environment, we keep producing more and more people who need more land to live on and more food to eat! The world’s population has grown by six times what it was in 1800.注意下列表倍数关系的句型:
1) …times + as + adj./adv. + as +…
2) …times + adj./adv.的比较级 + than…
3) …times +
the size/length/width/depth/value/weight…of +…
4) …times + what-clause…
The cotton output this year is five times what it was in 1996.It is clear that you are very concerned about the present situation of our environment.It is clear/obvious/apparent/as plain as day that… 显然…We need to stop thinking of companies and businessmen as the enemy, and give them more credit.People often have this belief that development is bad for the environment, but this does not have to be true. However, I do agree that we should produce more things from materials that have been recycled and less from raw materials, the supply of which is growing smaller and smaller.This might make wood and seafood more expensive, but paying a higher price for some things is not always bad. Asking around, I find many people willing to pay a litter higher price for things that are friendly to the environment.What if they run out?“What if” 如果…将会怎么样What if it rains while we are a long way from shelter?
What if the rumour is true?