Module12 Save our world
Unit 2 Repeat these three words daily: reduce, reuse and recycle
教学内容分析
本单元主要讨论了中学生怎样才能节约能源、保护环境，内容贴近学生的生活实际。课文的结构非常清晰，文章开头的问题会吸引学生对这一话题的关注。接下来包括三部分，分别为减少、再利用、再循环。内容简明，语言简洁，同时很自然地呈现了本模块的重点语言知识——构词法，有利于学生理解和学习。激发学生保护环境的决心，积极参加环保活动，并掌握不同的环保方法。
教学目标
知识目标：
能够读懂关于环保的文章
能够写出关于以环保为主题的文章
情感态度目标：
学会如何做一名绿色环保者，关心环保并且尽量能够简单的介绍环保举措，增强环保意识
学习重难点：
学会简单的介绍环保举措，提出合理性的意见
教学过程
Step 1 Lead-in
Use a picture to let the students think about what the moon and the earth are talking about and what is wrong with the earth------Make a dialogue.
Purpose: 让学生根据老师提供的图片信息猜测地球环境的现状，引发对环境问题的思考，从而引出本课主题。
Step 2 Do a survey（做调查） to see whose life is green
Purpose: 让学生首先从自己身边的生活习惯思考自己的生活是否是绿色的，从而引导学生从身边事情开始去做一个环保行为的践行者。
Step 3 Skimming : read the passage then choose the right answers
( ) 1. The passage may come from ______. ?A. a menu????? B. a dictionary????? C. a storybook??? ?D. a magazine
( )2. what is the passage talking about ?
A. We produce waste everyday.???
B. We should reduce、reuse and recycle to make our world green
C. We can hope for the rapid change to save the world
D. Divide rubbish into different groups .
Purpose:让学生快速阅读文章，找出本课话题范围，以及文章讲述的主要内容。
Step 4 Scanning :read the passage again to find out the three key words and their meanings
three key words the meanings
Purpose:让学生找出文章的三个关键词，也就是本节课的所涉及到的环保的三个方面，同时让学生理解每个词的含义。
Step 5.Careful reading: Match the things with the reduce, reuse and recycle
1.repair things
2.turn off the light reduce
3.use china cups and spoons
4.use cloth bag instead of plastic bags reuse
5.order food that you can finish
6.use the coke tins to make flower vases recycle
Purpose: 让学生通过对不同环保行为的分类，加深对文章的理解和对环保行为的认识。
Step 6. Read the passage again to find other suggestions about reduce, reuse and recycle?
reduce
reuse
recycle
Purpose: 让学生再次对文章中的环保行为进行分类，加深对环保的认识，熟悉日常的环保活动，促进自己成为一个绿色环保者。
Step 7 Find things you should do and things you should not do in the passage. Give reasons and make two sentences.
For example:
We should recycle rubbish because it can help us protect the environment.
1.__________________________________________________________
2.________________________________________________________
Purpose: 让学生对文章中提到的行为日常行为进行判断，引导学生做出正确的环保行为。
Step8 沙场点兵学以致用---show time
Saving the Earth
How to protect the environment has become... ...
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
______________________________________________________________
Summary:
What have you learned?
______________________________________________________________
Homework
基础作业（必做）
Remember the new words and expressions
Complete your short passage
能力提升（选做）
Try to do one thing that is good for our environment
阅读理解:
A
Do you still get free plastic bags from the supermarkets? Things have changed.
China has banned（禁止）free plastic bags at shops and supermarkets，and people have to pay for using plastic bags. The rule started on June 1, 2008. It came because our country tried to make litter less. Making super-thin（超薄）plastic bags has also been banned.
The Chinese once used about 3,000,000,000 plastic shopping bags a day，and they have caused pollution of the environment (环境污染). The bags have become a main cause of plastic pollution because they are easy to break and people throw them away here and there. So the Chinese people are encouraged to bring their own bags for shopping.
What kind of shopping bag is the best to bring? Some students in Chongqing have a good idea. They make their own shopping bags. They use old clothes to make cloth bags（布袋），and send them to their parents as presents. They also ask their parents and friends to use cloth bags instead of plastic ones. They think it is their duty to protect（保护）the environment.
1. People in China have to_______ now.
A. throw plastic bags here and there
B. collect plastic bags in the street
C. pay for using plastic bags at shops and supermarkets
D. use free plastic bags at shops and supermarkets
2. China made this rule because plastic bags were bad for the_______.
A. environment B. litter
C. shops D. supermarkets
3. The Chinese people are encouraged to bring _______for shopping.
A.no bags B. free plastic bags
C. their own bags D. super-thin plastic bags
4. Some students in Chongqing _______.
A. ask their parents to make cloth bags
B. make cloth bags themselves
C. pick up plastic bags everywhere
D. buy cloth bags for their parents
5.What’s the main idea of this article (文章)?
A. Making super-thin plastic bags has been banned in China.
B. The bags have become a main cause of plastic pollution.
C. Some students in Chongqing begin to make their own shopping bags.
D. To protect the environment,free plastic bags have been banned in China.
B
Each year there is an increasing number of cars on the roads and streets as millions of new cars and trucks are produced.One out of every six Americans works at putting together the parts of the cars,driving trucks，building roads，or filling car with gas.Americans won’t live without cars！
Most Americans would find it hard to think what life could look like without a car.However，some have realized the serious problem of the air pollution caused by the car.The polluted air becomes poisonous and dangerous to health.
One way to get rid of the polluted car is to design a car that does not pollute.That’s what several of the large car factories have been trying to do.But to build a clean car is easier said than done.Progress in this field has been slow.
Another way is to take the place of car engine （发动机）by something else.Inventors are now working on steam cars as well as electric cars.Many makers believe that it will take years to develop a practical model that pleases man.
To prevent the world from being polluted by car,we’ll have to make some changes.Americans，for example,have to cut down on the number of their total cars.They are encouraged to travel and to go to work by bicycle.Bicycling is thought to help keep the air clean.
But this change doesn’t come easily—a large number of workers may find themselves without jobs if a car factory closes down.Thus the problem of air pollution would become less important than that of unemployment.
Although cars have led us to a better life,they have also brought us new problems.
6.Some large car factories in the US are trying to build a new kind of car which _______.
A.is clean in itself B.is used to clean streets
C.is easier to make D.does not pollute the air
7.If the number of cars cuts down,the most serious problem to American workers is to _______.
A.have no work to do
B.improve their environment
C.go to work by bike
D.make their factories richer
8.The writer wants to tell us that_______ .
A.riding a bike is the only way out
B.the number of cars must be cut down
C.people wouldn’t live without cars
D.cars bring us not only a better life but also serious problems
9.Which fact does the passage provide？
A.About one sixth of American workers are working in car factories.
B.The best way to get rid of air pollution is to change the car engine by something else.
C.It isn’t easy to change the way of life in the US.
D.In the US bikes will surely take the place of cars in the future.
10.Which is the best title（标题）for the passage？
A.A New Way to Get Rid of Polluted Air
B.Cars and Polluted Air
C.Many Serious Problems in the US
D.Changes in Car Production
课件19张PPT。外研社九年级英语上册Unit 2 Repeat these three words daily:
reduce, reuse and recycle. Module 12 Save our world预习教材，自主学习探新知 1. 瓷，瓷器
2. repeat
3.快速的，迅速的
4.布，布料
5. grandson
6. 分开7. 步骤，措施
8. throw away
9. 塑料，塑料的
10. 政策，方针
11. 橡胶
12. 许多，很多
I am sick. Because I have forests, but not any trees there. I have rivers, but not any water there.What’s wrong with you?How to be green? Unit 2
Repeat these three words daily:
reduce, reuse and recycle. Module 12 Save our world* Do you walk or ride a bike to a supermarket?
* Do you buy new clothes just because they are modern?
* Do you turn off the lights when you leave the room?
* Do you take your own bag when shopping and not ask for a plastic bag?
* Do you collect bottles when they are empty?
* Do you divide the waste into things to recycle and things to throw away?
* Do you often use the disposable chopsticks to have meals ?Do a surveyWhose life is greenIf your YES is 5 and NO
is 2, your life is green。If your answer is not like this, change from now on.
( ) 1. The passage may come from ______. ?A. a menu????? B. a dictionary?????
C. a storybook????D. a magazine
( )2. what is the passage talking about ?
A. We produce waste everyday.???
B. We should reduce、reuse and recycle to make our
world green
C. We can hope for the rapid change to save the world
D. Divide rubbish into different groups .
Skimming : read the passage then choose the right answersScanning :read the passage again to find out the three key words and their meanings
Three key words
The meanings
Reduce
Reuse
Recycle
use lessuse againchange things into something
else to be reused1. repair things
2.turn off the light
3. use energy
saving light bulbs
4. use cloth bag instead of plastic bags
5.order food that you can finish
6.use the coke tins to make flower vases
reducereuserecycleCareful reading Before you buy something new, think whether it is really necessary. Look after them so that they will last; Don’t throw them away and buy new ones ;Don’t use paper cups or paper bags , it is better to use china cups.Divide your rubbish into plastic, glass, paper and rubber; Develop a recycling policy for the whole community; Buy products such as recycled paper to help save trees.Task Find one thing you should do and one thing you should not do in the passage. Give reasons. For example:
We should recycle rubbish because it can help us protect the environment.
We shouldn’t……because……smog haze send out
waste gas water pollution sand stormShow time 根据所给的中文提示语，以“Saving the Earth”为题写一篇80词左右的短文。注意语句流畅，意思连贯。短文的开头已给出。
中文提示语：
1.如何保护环境已成为当今世界最大的问题之一。
2.垃圾污染环境、损害健康，不要到处扔垃圾。
3.废水流到江里、湖里和田地里，会毒死大量的鱼，污染农作物等。
4.保持环境干净和整洁。我们只有一个地球，应该保护她，使我们的家园更加美丽。
所给词语:pollute, harm, throw, rubbish, pour, try one’s best
Saving the Earth
How to protect the environment has become... ...
summaryWe can’t hope for rapid change ,but let’s take these simple steps today so that we will save the world for our grandsons and granddaughters tomorrow.Homework基础作业（必做）
1.Remember the new words and expressions
2.Complete your short passage
能力提升（选做）
Try to do one thing that is good for our environment
