(共26张PPT)
Module 12 Save our world
Unit 3 Language in use
目录
课堂小测
02
课后作业
03
01
语法聚焦
语法聚焦
构词法
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。
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。合成法可以合成名词、形容词、副词、代词、动词等 home+work→homework
hard+working→hard-working
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。常见的前缀有以下几种: (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。常见的后缀有以下几种: (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、单项填空
( )1. Be _____ when you cross the street.
A. careful B. carefully C. care
A
( )2. The man looked _____ at his brother when he was badly wounded.
A. sadly B. sadness C. sad
( )3. When the teacher praised him for working out the physics problem, Tom looked _____.
A. proudly B. pride C. proud
A
C
( )4. There were _____ fish in the river in South America.
A. danger B. dangerous C. endanger
( )5. Can you write a _____ passage in English
A. 600 words B. 600-words C. 600-word
B
C
二、用所给单词的适当形式填空
6. Tom thinks people will help him if he asks for help __________ (polite).
7. Cats and mice have always been __________ (nature) enemies.
8. How those people deeply influenced by wars wish to live __________ (peaceful)!
politely
natural
peacefully
9. It is _______________ (possible) to clean up the whole river in such a short time.
10. Mary is ill again and I think she is a little
________________ (health).
impossible
unhealthy
课堂小测
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.
reduce, rapid, step, reuse, cloth
rapidly
cloth
to reduce
4. The following __________ are useful for English learners.
5. _____________ the waste is much better than burning it.
reduce, rapid, step, reuse, cloth
steps
Reusing
二、根据汉语意思完成句子,每空一词
6. 爸爸的办公室里总有大量的废纸。
There’s always __________ __________ scrap paper in Dad’s office.
7. 白线把赛区分成几个部分。
White lines __________ the playing area _________ several sections.
tons / lots
of
divide
into
8. 你知道如何把水变成冰吗?
Do you know how to __________ __________ __________ __________
9. 睡觉前请关上电视。
Please ________ ______ the TV before you go to bed.
10. 她会打篮球,也会打网球。
She can play basketball and tennis _______ _______.
change
water
change
ice
turn
off
as
well
三、语法选择
My father told me that there used to be a forest near our town. But the farmer who _____11_____ the forest cut trees every year until there were no trees left.
( )11. A. owned B. owns C. will own
A
One day, our teacher took us out and _____12_____ had a picnic in the field where the forest used to be. One of my classmates,who comes from a tribe(部落)that lived in the west of our country, told us _____13_____ he thought about the change.
( )12. A. us B. our C. we
( )13. A. when B. which C. what
C
C
“It makes me really _____14_____ to learn that a forest has disappeared. My people always say that when we do something to the land, we should never hurt it. We must care about nature and leave it good enough _____15_____ later generations(后代).”
( )14. A. sadness B. sad C. sadly
( )15. A. of B. for C. through
B
B
When we heard what he said, we kept silent first. “Let’s _____16_____ some trees!” said our teacher after a moment. “It will be _____17_____ good start!” So that’s what we did. For the rest of the spring, we worked hard _____18_____ we planted thousands of trees.
( )16. A. plant B. to plant C. planting
( )17. A. the B. an C. a
( )18. A. and B. or C. but
A
C
A
That _____19_____ five years ago. Today, when I stand in that field which was once bare (荒芜的), I see trees about as _____20_____ as I am. It’s great to see how we’ve changed the field. It taught us the power of thinking about the future.
( )19. A. was B. were C. is
( )20. A. taller B. the tallest C. tall
A
C
四、短文填空
Do you play Ant Forest? It is _____21_____ online game on Alipay(支付宝). Players collect “energy”by _____22_____ something environmentally-friendly. They can grow and water _____23_____ own “trees”with the “energy”. _____24_____ the “trees”are big enough, Alipay with some other companies will plant real trees in the desert (沙漠)area of China. Every year millions of trees are _____25_____ in this way.
an
doing
their
When
planted
This is part of China’s tree-planting program. It hopes to ___26___ the desert from becoming larger. Since 1978, China has planted over 66 billion trees ___27___ the north. It is known as “the Great Green Wall”. For example, Saihanba in Hebei Province was once a desert, ____28____ now it has become the biggest man-made forest in China.
stop
in
but
“China is making the world _____29_____ greener than before. It sets a good example and has many lessons to _____30_____ with the world,”said the United Nations Environment Program.
much / even / far
share
21. __________ 22. __________
23. __________ 24. __________
25. __________ 26. __________
27. __________ 28. __________
29. ______________ 30. __________
an
doing
their
When
planted
stop
in
but
much / even / far
share
课后作业
请同学们完成上册Module 12 Unit 3的所有练习题。
THANKS!