Module 12 Language practice (1)-教学课件 外研版九年级上册

(共26张PPT)
M12 Save our world
Unit 3 Language practice（第一课时）
Can you list more compound words
one new compound word
one word
one word
+
Do you know the meanings of these words
Observe carefully and pay attention to the words in red.
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.
5. We all need a healthy environment, but we produce waste every day, and it is harmful to our environment.
6. Do not waste things.
7. Repeat these three words daily: reduce, reuse and recycle.
8. …but let’s take these simple steps today so that we will save the world for our grandsons and granddaughters tomorrow.
1. 合成法
将两个或两个以上独立且语义不同的单词合在一起构成新词的方法叫做合成法。合成法是可以合成名词、形容词、副词、代词、动词等。例如：afternoon, sportsman, blackboard, sportsperson, newspaper, airplane, classmate, grandfather等为合成名词; kind-hearted, middle-aged, hard-working 等为合成形容词; however, maybe, himself, everyone, nothing等为合成单词。
构词法
2. 派生法
通过在词根前面加前缀或在词根后面加后缀构成一个新词的方法叫作派生法。派生法要掌握常见的前缀和后缀及派生规律。
Reuse means “use again”.
Though pollution is heavy now, I don’t think it’s hopeless.
1) 常见前缀
前缀 含义 例词
dis- 不 disagree, dislike
en- 使...处于某种状态 enable, enrich
im-, in- 不 impossible, inexpensive
inter- 在…之间, 相互 international, interconnect
mis- 错误地 mislead, misunderstand
non- 不, 非 non-smoker, non-native
re- 再, 重复 rewrite, retell
un- 不 unable, unhappy
2) 常见后缀
后缀 功能 例词
-er, -or 构成名词 teacher, visitor
-ian musician
-ing building, painting
-ist artist, scientist
-ment agreement, government
-ness coldness, happiness
-th truth, warmth
-tion education, information
-ty activity, safety
后缀 功能 例词
-able, -ible 构成形容词 comfortable, enjoyable
-al international, national
-ful careful, helpful
-ive active, expensive
-less careless, helpless
-ly friendly, lovely
-ous dangerous, famous
-teen 构成数词 eighteen, fifteen
-th fifteenth, fifth
-ty forty, sixty
-ly 构成副词 badly, carefully
3) 派生规律
由一个词根加上相应的词缀可以派生出名词、形容词、副词等，掌握派生规律对扩充词汇有很大帮助。
interest 可以派生出：
— interesting
— interestingly
— interested
— uninterested
— uninteresting
help 可以派生出：
— helpful
— helpfully
— helpless
— helplessly
3. 转化法
构词法中把一种词性转化为另一种词性而词形不变的方法称作转化法。常见的转化有：
1) 动词转化为名词
Let’s talk about it more.
咱们再谈谈这件事吧。
I think we’d better finish the talk now.
我想我们最好现在结束谈话。
2) 名词转化为动词
She gave me a cup of water.
她给了我一杯水。
You should water the flowers twice a day.
你应该每天给这些花浇两次水。
3) 形容词转化为名词
She was wearing a black dress.
她穿着一条黑色的裙子。
The girl in black looks very beautiful.
那个穿黑衣服的女孩看上去很漂亮。
reuse
pollution
hopeless
farmer
everyone
something
healthy
waste
harmful
recycle
grandson
granddaughter
compounds derivatives conversion
everyone something grandson granddaughter reuse pollution hopeless farmer healthy harmful recycle waste
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.
A –able -ful im- -less re- un-
B care collect hope possible use usual wanted waste
collectable, usable, careful, hopeful, useful, wasteful, impossible, careless, hopeless, useless, reuse, unusual, unwanted
Play the guessing game English for Fun.
English for Fun
full of care ____________
2. can be collected ____________
3. full of hope ____________
4. without any hope ____________
5. not possible ____________
careful
collectable
hopeful
hopeless
impossible
6. not usual ____________
7. without any use ____________
8. use again ____________
9. not wanted ____________
10. making a lot of waste ____________
unusual
useless
reuse
unwanted
wasteful
Complete the sentences with the words in the box.
hopeful impossible reuse unhealthy wasteful
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
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
water
waste
wasteful/wasted
wastefully
usual/ unusual
3. Do not use so much water. It is very _________.
4. To keep the flowers growing, you need to _______ them once a day.
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.
2. We often walk in the countryside. It is a(n) ________ activity for us.
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.
postcard
classroom
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.
storybook
blackboard
Look at the pictures and answer the questions.
What kinds of things can be recycled
old clothes
old mops
envelopes,
old notebooks, boxes,
paper cups
bottles,
jars,
broken drinking glasses
2. How can these things be reused
Recycled paper can be used for notebooks,
tickets or writing paper.
3. How does this help the environment
For example, we save paper so we don’t need to cut more trees to make paper. We can get more fresh air so air pollution can be reduced.
4. Have you ever recycled or used things that can be recycled How
Everyone can have his or her ways of recycling.
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 the Caribbean for a holiday! Lucky you! But aren’t you (1) ______________ the pollution that such long plane journey 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!
worried about
throw away
turn off
be good for throw away turn off worry about
Mike: No, of course not. But we can do more to protect the environment. For example, we can help keep the air clean by planting trees. Trees (4) ___________ the environment. In this way, we can reduce the harm of pollution.
are good for
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!
Homework
You must do:
Complete Exercise A and B
Find more imformation about word formation on
You can choose to do:
Complete Exercise C
Find more imformation about environment protection