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(共24张PPT)
Unit 3
Language in use
Module 12
Save our world
01
学习目标
能熟悉并能正确运用本模块的单词和短语
能正确分析构词法的前缀后缀, 并能对其进行归纳和总结
能够谈论环保措施，并提出有关环保的建议
Warming up
Free talk
Can you say something about the environmental protection measures taken in daily life
学习目标
1.能熟悉并能正确运用本模块的单词和短语
2.能正确分析构词法的前缀后缀, 并能对其进行归纳和总结
3.能够谈论环保措施，并提出有关环保的建议
自主学习
Language practice
Reuse means “use again”.
Though pollution is heavy now, I don’t think it’s hopeless.
重点探究
1.What is it？
2.How to do it
3.Why do people do that
前缀 含义 例词
mis- 错误地 mislead, misunderstand
non- 不, 非 non-smoker, non-native
re- 再, 重复 rewrite, retell
un- 不 unable, unhappy, unpopular
2) 常见后缀
后缀 功能 例词
-er, -or 构成名词 teacher, worker, visitor
-ian musician
-ing building, painting, shopping, meaning
-ist artist, scientist
Observe
Observe the following sentences carefully. They are all from this module.
1. Reuse means “use again”.
2. Though pollution is heavy now, I don’t think it’s hopeless.
3. If the rivers are polluted, farmers can’t use the water for their crops.
4. If everyone starts to do something, the world will be saved.
1. Make a 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.
A –able -ful im- -less re- un-
B care collect hope possible use usual wanted waste
collectable, usable
impossible
reuse
careful, hopeful, useful, wasteful
careless, hopeless, useless
unusual, unwanted
Now work in groups. Play the guessing game English for Fun.
English for Fun
1. full of care ___________
2. can be collected ____________
3. full of hope ____________
4. without any hope ____________
careful
collectable
hopeful
hopeless
5. not possible ____________
6. not usual ____________
7. without any use ____________
8. use again ____________
9. not wanted ____________
10. making a lot of waste ____________
unusual
useless
reuse
unwanted
wasteful
impossible
Learning to learn
Sometimes if you know the meaning of the parts of a word, you can work out the meaning of the whole word.
re + new + able: re = again,
able = can be
renewable = can be new again
2. Complete the sentences with the words in the box.
1. Polluted water is ____________.
2. It is _________ to throw so much food away.
3. If you look after things well, you may ________ some of them later.
4. It is __________ to clean up the whole river in such a short time.
5. If we pay attention to pollution now, the future will be ________.
unhealthy
wasteful
reuse
impossible
hopeful
hopeful impossible reuse unhealthy wasteful
3. Complete the table.
Noun Verb Adjective Adverb
useful/useless
hope hopefully / hopelessly
pollution ——
water —— ——
waste
—— —— usually/ unusually
use
use
usefully/uselessly
hope
hopeful/hopeless
pollute
polluted/unpolluted
water
waste
wasteful/wasted
wastefully
usual/unusual
4. Complete the sentences with the correct form
of the words in Activity 3.
She was_________ that her new job would make her more successful.
hopeful
The factory _________the river, and the fish died.
2. 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
8. Listen and check (√)the true sentences.
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.
√
√
√
√
9. Listen again and complete the table.
Advice Reasons
1.Don’t throw away things made of ________________ ______, but_______them. Throwing things away is wasteful.
2 ______your plastic bags when you can and __________ with you when you go shopping. Plastic bags ___________ recycle.
glass, plastic and
paper
recycle
take a bag
are hard to
Reuse
将A、B两部分词配对，组成一个合成词：
A what, book, class, no, down, south, black, good
B bye, stairs, shop, west, thing, board, ever, mate
whatever
bookshop
classmate
nothing
downstairs
southwest
blackboard
goodbye
1. Our country has a problem with its air pollution.________must be done!
A．Everything B．Something
C．Anything D．Nothing
2. These walls _______ stones. Please give up smoking. It’s___________to your health.
A. harm B. harms C. harmful D. harmless
3.We should use china cups because we can ______ them.
A．reduce B．reuse C．recycle D．break
选择合适的选项：
Task 3: Practice
Complete the sentences with the words in the box.
hopeful impossible reuse unhealthy wasteful
1 Polluted water is _____________.
2 It is ____________ to throw so much food away.
unhealthy
wasteful
3 If you look after things well, you may ______ some of them later.
4 It is ___________ to clean up the whole river in such a short time.
5 If we pay attention to pollution now, the future will be ___________.
reuse
impossible
hopeful
02
Language practice
Complete the table.
Noun Verb Adjective Adverb
useful/useless
hope hopefully/hopelessly
pollution —
use
use
usefully/uselessly
hope
hopeful/hopeless
pollute
polluted/unpolluted
03
Language practice
Complete the sentences with the words in the box.
1. Polluted water is ____________.
2. It is _________ to throw so much food away.
3. If you look after things well, you may ________ some of them later.
4. It is __________ to clean up the whole river in such a short time.
5. If we pay attention to pollution now, the future will be ________.
hopeful impossible reuse unhealthy wasteful
unhealthy
wasteful
reuse
impossible
hopeful
Task 5: Exercise
Complete the table.
Noun Verb Adjective Adverb
useful/useless
hope hopefully / hopelessly
pollution ——
water —— ——
waste
—— —— usually/ unusually
use
use
usefully/uselessly
hope
hopeful/hopeless
pollute
polluted/unpolluted
water
waste
wasteful/wasted
wastefully
usual/unusual

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