外研版九年级上册 Module 12 Unit 3 Language in use 课件 (共22张PPT)

(共22张PPT)
Module 12 Save our world
Unit 3 Language in use
目录
02
课堂小测
03
课后作业
01
语法聚焦
构词法
把两个或两个以上的词组合在一起或在一个词的基础上进行变化, 从而得到一个新词, 即为“构词”。在初中阶段,我们主要学习三种构词法：合成法、派生法、转化法。
语法聚焦
构词法 举例
合成法：把两个或两个以上独立且语义不同的单词合在一起, 构成一个新词, 这种构词法叫合成法。常见的合成词有合成名词、合成形容词和合成动词 home+work?homework
hard+working?hardworking
down+load?download
构词法 举例
派生法：派生法也叫前缀、后缀构词法, 即由一个词根加上前缀或后缀构成一个新词的构成方法 1. 前缀 添加在词根前的构词部分叫前缀, 多数情况下它不改变原词的词性。常见的有以下几种： (1)im-, un-, in-, dis-,non-等表示否定 (2)re-表示“重复” (3)mis-表示“错误地” (4)anti-表示“反对；防止” (5)inter-表示“相互；交互；在……之间” (1)possible?impossible, happy?unhappy,
correct?incorrect, agree?disagree,
smoker?nonsmoker
(2)build?rebuild, use?reuse, cycle?recycle, write?rewrite
(3)understand?misunderstand
(4)war?antiwar
(5)national?international
构词法 举例
2. 后缀 添加在词根后的构词部分叫后缀, 多数情况下它改变原词的词性。常见的有以下几种： (1)名词后缀：-er, -or, -ist, -tion, -ment等 (2)形容词后缀：-ful, -less, -able等 (3)副词后缀：-ly (4)数词后缀：-th, -teen, -ty等 (1)read?reader, visit?visitor, piano?pianist, suggest?suggestion, develop?
development
(2)care?careful, use?useless, believe?believable
(3)slow?slowly
(4)four?fourth, fourteen, forty
构词法 举例
转化法：转化法是指将一种词性转化为另一种词性而词形不变的方法，转化后的词其意义往往与之前的联系密切。常见的有动词转化为名词、名词转化为动词、形容词转化为动词等 ride v. 骑；乘?n. 骑马；乘车
record n.最佳纪录?v. 记录
clear adj.(天气)晴朗的?v. (烟雾等)开始消失
一、用所给单词的适当形式填空
1. Polluted water is ____________________(health).
2. If you look after things well, you may ____________________(use)some of them later.
3. It is ____________________(possible)to clean up the whole river in such a short time.
专 练
unhealthy
reuse
impossible
二、用方框内所给单词的适当形式填空
4. She is one of the best ____________________ in China. Her songs are popular.
5. Jack ____________________ me. I didn't mean to hurt him.
6. Schools, houses and factories are all ____________________.
7. Mary had five days off because of her _________________.
ill, sing, build, understand
singers
misunderstood
buildings
illness
一、用方框内所给单词的适当形式填空
1. The population in that country grows ____________________.
2. Why not cover this desk with a piece of _________________
3. In order ____________________ pollution, we should drive less.
课堂小测
rapidly
reduce, rapid, step, reuse, cloth
cloth
to reduce
4. The following ____________________ are useful for English learners.
5. ____________________ the waste is much better than burning it.
steps
Reusing
二、根据汉语意思完成句子，词数不限
6. 我还有许多工作要做。
I've still got ____________________ work to do.
7. 我们应该采取措施以节约能源。
We should ____________________ to save energy.
tons / lots of
take steps
8. 你知道如何把水变成冰吗？
Do you know how to _________________________
9. 我们在学校学习很多科目，比如数学和英语。
We learn many subjects at school， ____________________ maths and English.
change water into ice
such as
10. 她会打篮球，也会打网球。
She can play basketball and tennis ____________________.
as well
三、语法选择
My sister Amy and I have always tried to stop people dropping cigarette butts(烟蒂) everywhere.We have done this __________11__________ seven years.
We started to do this when we saw hundreds of cigarette butts on the ground one day. They made our home town look so dirty __________12__________ we decided to start a group to make people stop dropping cigarette butts.We called it “No Butts About It”．
At __________13__________, we drew pictures with words “The earth is not __________14__________ ashtray(烟灰缸).” on them.We put up the pictures in parks, on walls and along roads.We wanted to make people __________15__________ that dropping butts did harm to the earth.Most smokers don't think that dropping butts will __________16__________ the earth, but actually it will.
Later, we raised money __________17__________ ashtrays and gave them to smokers. We wanted smokers to carry the ashtrays with them so they didn't have to drop butts everywhere. Now we are trying to get cigarette companies to put __________18__________ ashtray in each pack of cigarettes.Some companies will do it.
Today there are 45 groups like “No Butts About It” in America. And there are also groups in England, Australia and India! Many newspapers __________19__________ about my sister and me over the last seven years. We have won many prizes for our good work, but we are not __________20__________ in those things. We just want to make the earth a better and cleaner place.
( )11. A. since B. until C. for D. after
( )12. A. as B. that C. because D. if
( )13. A. one B. first C. the first D. one's
( )14. A. your B. you C. yours D. yourself
( )15. A. to understand B. understand
C. understood D. understanding
C
B
B
A
B
( )16. A. harm B. harmful C. harms D. harmless
( )17. A. buying B. bought C. to buy D. buys
( )18. A. an B. a C. / D. the
( )19. A. are writing B. have written
C. has written D. are written
( )20. A. interest B. interests
C. interested D. interesting
A
C
A
B
C
课后作业
此部分习题详见独立装订的《课后作业》。请同学们完成上册Module 12 Unit 3的所有练习题。
THANKS!