外研版九上： Module 12 unit3 Language in use 教案

Module 12 Save our world
教师：
【教学内容分析】
本模块以环境污染以及环保为话题。本单元是通过工厂污染环境谈论环保，提倡绿色生活，锻炼学生的语言表达能力，并提高学生的环保意识.
【学情分析】
本模块谈论环境污染和环保，污染问题普遍，更能激起学生的共鸣，调动学生的积极性，激发学生的学习兴趣。
Unit 3 Language in use
【教学目标】
Knowledge objective
To practice word-building: compounds, derivatives, conversion
Ability objective
Enable students to learn how to protect environment and Earth Hour.
Moral objective
To arouse the awareness of students protecting environment.
【教学重点】
To learn word-building: compounds, derivatives, conversion
【教学方法】
PWP method, task-based method
【教学手段】
A tape recorder, multimedia and some pictures
【教学过程】
Teaching Procedures:
Step 1 Language practice
Reuse means “use again”.
Though pollution is heavy now, I don’t think it’s hopeless.
Step 2 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 朼ble -ful im- -less re- un-
B care collect hope possible use usual wanted waste
Step 3 Now work in groups. 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 ____________
6. not usual ____________
7. without any use ____________
8. use again ____________
9. not wanted ____________
10. making a lot of waste ____________
Step 4 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
Step 5构词法
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。合成法是一种比较灵活的构词方法，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 等就是通过合成构词法构成的名词；kind-hearted, middle-aged, hard-working 等为合成形容词；however, maybe, himself, everyone, nothing, overlook 等也都是通过合成法构成的单词。
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。要通过派生法理解和记忆单词, 我们需要掌握常见的前缀和后缀及派生规律。
(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, impatient, 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, 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
-ment
agreement, government
-ness
coldness, happiness, illness
-th
truth, warmth
-tion
competition, education, information, invitation
-ty
activity, safety
-ble, ible 构成形容词 comfortable, eatable, enjoyable, possible, probable
-al
environmental, international, national, traditional
-ful
careful, helpful, useful
-ive
active, expensive
-less
careless, helpless, homeless, useless
-ly
friendly, lovely, monthly, weekly
-ous
dangerous, famous
-teen 构成数词 eighteen, fifteen, seventeen
-th
fifteenth, fifth, fortieth, seventh
-ty
forty, sixty, twenty
-ly 构成副词 badly, carefully, carelessly, happily, quickly
(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。例如：
由 interest 可以派生出：
uninteresting
interest — interesting — interestingly
interested — uninterested
由 help 可以派生出：
helpless — helplessly
help — helpful — helpfully
由 able 可以派生出：
enable
able unable
ability
disable
3. 转化法
英语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。
Step 6 Exercises
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.
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 __________.
Step 7 Complete the table.
Noun Verb Adjective Adverb

useful/useless
hope

hopefully / hopelessly
pollution

water
棗
waste


棗 棗
Step 8 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.
3. Do not use so much water. It is very __________.
4. To keep the flowers growing, you need to _________ them once a day.
Step 9 Complete the sentences.
A lunchbox is a box that you keep your lunch in.
1. 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.
Step 10 Work in pairs
Look at the pictures and answer the questions.
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?
Step 11 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抰 you _____________ 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 ____________ things if I don’t want them any more. I __________ 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 clean by planting trees. Trees ______________ 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!
Step 12 Listening
Listen and check (√) the true sentences.
Do not throw away things made of glass, plastic and paper, but recycle them when possible.
b) Take a bag when you go shopping.
c) It is OK to throw used things away. Looking after them takes a lot of time.
d) Turn off lights when you do not need them.
e) Ride a bike or walk, and do not often drive your car.
f) Paper cups and bottled drinks make our life easier. We can use them as much as possible.
Step 13 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.
3. Use less electricity and oil to _________. 4. Don’t leave lights on and __________.
5. ________ and do not often drive your car. Producing electricity and using oil may cause ___________.
Step 14 Around the world
Earth Hour
Read the passage and answer the questions.
When is Earth Hour held each year?
Why do people switch off the lights during Earth Hour?
When and where was the first Earth Hour held?
Which city take part in the event today?
Step 15 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.
If you choose air pollution, let’s watch a video about air pollution from a factory.
Step 16 Discussion
Discuss your subject.
Take turns to say what you think about the problems 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 …”
Present your group ideas to the whole class.
Step 17 Homework
假如你校将于下周五下午举办一场以环保为主题的英语演讲比赛。请你根据下面的要点提示写一篇100词左右的演讲稿，参加此次比赛。
? 要点提示：
1. 尽量选择绿色出行方式；
2. 购物时携带自制购物袋；
3. 节约水电；
4. 循环再利用废品。
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