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(共22张PPT)
Module 12 Save our world
Unit 3 Language in use
Language practice
Reuse means "use again".
Though pollution is heavy now, I don't think it's hopeless.
Have you ever seen these words before
read—reader teach—teacher
invent—inventor visit—visitor
health—healthy luck—lucky
hope—hopeful use—useful
careful—carefully wonderful—wonderfully
discuss—discussion pollute—pollution
kind—kindness serious—seriousness
interest—interested worry—worried
Can you learn something from these words
语法探究
前缀、后缀构词法
Word Formation (Prefix and Suffix)
词根 re- in(m)- un- dis-
意义 再/又 不/无 不/无 不/无
例子 rewrite incorrect uneasy dislike
reuse impossible
impolite untrue disagree
词根 anti- -able ful- -less
意义 反对/防止 能够 充满 少的/
没有
例子 anti-pollution movable helpful careless
anti-war eatable hopeful
useful useless
词根 -ness -(t)ion -er/or -ly -al
意义 构成
名词 构成
名词 构成
名词 构成
副词 构成
形容词
例子 kindness invention teacher carefully national
happiness pollution visitor quickly natural
拓展：
Make new words. Join the parts of words in Box A with the words in Box B. You need to use some of the parts more than once.
care collect hope possible
use usual wanted waste
-able -ful im- -less re- un-
A
B
full of care ___________
can be collected __________
full of hope __________
without any hope __________
not possible __________
not usual __________
7. without any use ________
8. use again _________
9.not wanted __________
10.making a lot of waste _________
careful
hopeful
hopeless
impossible
unusual
reuse
wasteful
collectable
unwanted
useless
Complete the sentences with the words in the box.
Polluted water is __________.
It is ________ to throw so much food away.
If you look after things well, you may__________ some of them later.
It is __________ to clean up the whole river in such a short time.
If we pay attention to pollution now, the future will be __________.
hopeful
impossible
reuse
unhealthy
wasteful
Noun Verb Adjective Adverb
useful / useless
hope hopefully/ hopelessly
pollution —
water — —
waste
— — usually\unusually
use
use
usefully / uselessly
hope
hopeful/ hopeless
pollute
polluted
water
waste
wasteful
wastefully
usual
Complete the table.
Complete the sentences with the correct form of the words in Activity 3.
She was hopeful that her new job would make her more successful.
The factory _________ the river, and the fish died.
We often walk in the countryside. It is a(n) _______ activity for
us.
3.Do not use so much water. It is very _________.
4.To keep the flowers growing, you need to _______ them once a
day.
polluted
usual
wasteful
water
Complete the sentences
A lunchbox is a box that you keep your lunch in.
A ________ is a card that you write on one side of and
send to someone by post.
2.A __________ is a room where you have classes at school.
3.A __________is a book that has one or more stories for children.
4.A ___________ is a black board that is used at school for
writing on with chalk.
postcard
classroom
storybook
blackboard
Work in pairs
Work in pairs. Look at the pictures and answer the questions.
1. What kinds of things can be recycled
2. How can these things be reused
3. How does this help the environment
4. Have you ever recycled or used things that can be recycled How
Complete the conversation with the correct form of the expressions in the box.
be good for throw away turn off worry about
Mike: I hear you are off to Caribbean for a holiday! Lucky you!
But aren’t you (1) _____________ the pollution that such
long plane journeys may cause for the environment
Ken: I know, but what can I do about it I’ve already tried my
best to protect the environment. I recycle. I don’t
(2) ____________ things if I don’t want them any more. I
(3) _________ the lights when I leave a room. Don’t tell me
I shouldn’t travel by plane any more!
Mike: No, of course not. But we can do more to protect the
environment. For example, we can help keep the air
worried about
throw away
turn off
clean by planting trees. Trees (4) _____________
the environment. In this way, we can reduce the
harm of pollution.
Ken: Good! So I can enjoy my holiday, and when I come
back, I’ll plant some trees!
Mike: That’s the idea! Maybe we can all join in and start
a small forest!
are good for
8
Listen and check (√) the true sentences.
1. It is OK to throw used things away. Looking after them takes a lot of time.
2. Do not throw away things made of glass, plastic and paper, but recycle them when possible.
3. Take a bag when you go shopping.
4. Producing electricity and using oil will not cause pollution.
5. Turn off lights when you do not need them.
6. Ride a bike or walk, and do not often drive your car.
×
√
√
×
√
√
Listen again and complete the table.
Advice
1.Don't throw away things made of______________________，
but ________ them.
2.________ your plastic bags when you can and __________ with you when you go shopping.
3.Use less electricity and oil to ________________.
4．Don't leave lights on and __________________.
5．______________ and do not often drive your car.
glass , plastic and paper 　
recycle 　
Reuse 　
take a bag　
reduce pollution　
waste electricity 　
Walk or cycle　
Around the world
Earth Hour
Earth Hour is held toward the end of March each year. During Earth Hour, people all across the world switch off the lights they do not need. They do this to show their awareness of climate change.
The first Earth Hour was held in 2007 in Sydney, where more than 2.2 million people switched off their lights. Today, more and more cities are taking part in the event, such as Beijing, London, Rome and New York, and landmarks like the Empire State Building and the Golden Gate Bridge will go dark.
Module Task:
Discussing what you can do about pollution
Work in groups. Decide what kind of pollution you want to talk about.
Choose a subject that you care about the most. It could be water pollution, air pollution, etc.
Find out more information about your subject. Look it up on a website or in a book.
Work in pairs
Take turns to say what you think about the problem and what can be done.
Listen to what others say. If you agree with what they have said, say “I agree”, “That’s true” or “That’s a good point”; if you do not agree with what someone says, say “I’m sorry, but I don’t agree, I think that...”
Discuss your subject.
用所给单词的适当形式填空。
1.There are many _____________(environment)
problems in the world now.
2.Every class collects_________(reuse)waste.
3.Do you care about__________(protect)our earth
4.We must be _________(care)about the young trees.
5.The old man had been seriously ill for a long time and will be_________(hope).
environmental
reusable
protecting
careful
hopeless
训练·评价
Homework
1.Revise the words and expressions in Module12.
2.Write a short passage about your ways to protect the environment.

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