资源简介

(共24张PPT)
Unit 1
Module 12
Save our world
To learn more about how to protect the environment
To talk about environmental protection
学习目标
To learn some key words and useful expressions
Look at the following pictures. What pollution is it
air pollution
Warming up
新课导入
Before
Now
Wood cutting
新课导入
Most serious
problems
新课导入
What else can we do
1. Turn off computers when we are not
using them.
2. Use both sides of a piece of paper.
3. Send e-cards instead of paper cards.
4. Buy products that can be used again.
5. Reduce waste.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1. Work in pairs. Look at the pictures and talk about them. Use the words in the box to help you.
factory, pollute, recycle, waste
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Air has been polluted because factories produce electricity and energy for human beings every day.
A large number of metal cans are thrown away everywhere. We waste a great deal of metal
Listen again and complete the notes.
Pollution problems
1. If the rivers are polluted, ____________________________________.
2. In some places, pollution from factories ___________________________.
3. The cars on the roads ___________________________________.
What the students can do
4. Support a green school: every class ______________ which can be _______________________. Then the school _____________ to help students ______________.
5. Students learn ____________________________________. That means ___________.
farmers can’t use them to water their crops
spreads over cities and villages
use so much oil and cause pollution
collects waste
recycled or used again
sells the waste
in poor areas
ways to save energy and recycle at home
less waste
Retell the conversation.
Post-listening
It’s no use …
Such as …
Nice idea!
Read and find them in the conversation.
Now make dialogues with them.
Everyday English
1. A: I want to be a scientist when I grow up.
B: Then you need to work hard now. It’s no use talking without doing.
Examples
思 考
新课讲解
Now complete the notes.
Pollution problems
If the rivers are polluted, ________________________________________.
2. In some places, pollution from factories __________________________________.
3. The cars on the roads _________________________________________________.
farmers can’t use them to water their crops
spreads over cities and villages
use so much oil and cause pollution
思 考
新课讲解
What the students can do
4. Support a green school: every class ___________ which can be ___________________. Then the school _____________to help students ______________.
5. Students learn __________________________________. That means _________.
collect waste
recycled or used again
sells the waste
in poor areas
ways to save energy and recycle at home
less waste
Find the phrases in the dialogue and remember them.
1.担心
2.在一些地方
3.扩展，延伸
4.做某事是没用的
5.例如
6.收集垃圾
7.贫困地区
8.开始做某事
1.be worried about
2.in some places
3.spread over
4.it’s no use doing something
5.such as
6.collect waste
7.poor areas
8.start to do something
Lingling: Afterour lesson on the environment, I’m worried about the future. Pollution is our great enemy, and we have to fight it. If the rivers are polluted, farmers can’t use the water for their crops.
Tony: And in some places, pollution from factories spreads over cities and villages. It makes people ill, and may even kill them. Pollution is a danger to our health.
关于环境的课
be worried about 为...而担心
pollute v. 污染
polluted adj.受污染的
pollution un. 污染
spread - spread - spread
spread out 伸展，展开spread to 传到，蔓延到
an enemy
Language points
3. 相邻两个单词，第一个单词以元音音素结尾，后一个单词以元音音素开头，拼读成“元音+ /j/或/w/ +元音”
Work in pairs. List the pollution problems in your place. Choose one problem and say what should be done about it.
— The air pollution in our city is getting worse. What can we do to stop it
— I think we can ride our bicycles to school more.
Example
7
Discussion
What the students can do
4. Support a green school: every class______________________
which can be____________________. Then the school _____________________________to help students_____________.
5. Students learn__________________________________. That means__________.
collects waste
recycled or used again
sells the waste and uses the money
in poor areas
ways to save energy and recycle at home
less waste
Role-play
1. Role play the conversation in groups;
2. Role play the conversation in front of the class
Let’s see which group does the best.
3. It’s no use talking about things we can’t do.
谈论我们不能做到的事是没有意义的。
It’s no use doing sth. 做某事没有用 在这个句型中，动词-ing形式是主语，it 是形式主语。类似句型还有It is no good doing sth. (做某事不好 / 没用 / 不行)和It’s a waste of time / money doing sth.做某事是白费时间 / 金钱等。
e.g. It is no good talking to him because he never listens.
他讲没用，因为他从来不听。
It’s a waste of time talking to her when she’s in this mood.
在她目前的心情下，找她谈是白费时间。
less和fewer分别是little和few的比较级。less用于修饰不可数名词；fewer用于修饰可数名词。
4. That means less waste.
这意味着减少浪费。
less adj. 较小的; 较少的
n. 较少数; 较少量
拓展
e.g. The doctor advises me to eat less meat. 医生劝我少吃肉。
Complete the passage with the correct form of the words in the box.
cause enemy factory kill oil pollute spread
Pollution is our great (1) ________. Pollution from (2) _________ is a danger to our health, and may even (3) ______ people. Factories sometimes (4) _________ the rivers, and farmers cannot use the water for their crops. Pollution (5) __________ over cities and villages, and that (6) ________ even more danger. Cars use a lot of (7) _____ and cause pollution too.
enemy
factories
kill
pollute
spreads
causes
oil
04
Listening and vocabulary
英语连读的规则：
1. “辅音+元音”型
2. “辅音+半元音”型
3. “元音+元音”型
注意：若前一个词的结尾和后一个词的开头相同，这两个要连读。
Pronunciation and speaking

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