Unit 8 We're trying to save the earth Section A(Grammar focus-4c)学案（含答案）

课题：Unit 8 We’re trying to save the earth!
第二课时 Section A (Grammar focus-4c)
学习目标：
1、重点单词
afford (v.)承担得起（后果）；买得起
2、重点词组
take part in参加； can’t afford to do sth.,负担不起…… take action采取行动； turn off ,关掉；pay for付费；付出代价； add up增加
3、重点句式
(1). It was considered the biggest clean-up project this city had ever had.
这被认为是这个城市曾经开展的一次最大的清理活动。
(2).We can’t afford to wait any longer to take action!
我们不能再等待了，采取行动！
(3).Many forget that saving the earth begins with small things
许多人忘记了拯救地球要从小事做起。
(4).And instead of driving to school or work, you could ride your bike or walk.
你可以骑自行车或步行上学或上班，而不是开车。
(5).It’s difficult for parents with young children to use public transportation.
对带孩子的父母来说，使用公共交通是困难的。
重难点：
本课时重点词汇、短语及句型。
导学设计：
1.turn off
【归纳】① turn off意为“____”，是“动词+副词”型短语，如果跟代词，需置于____。例如：收音机太吵了，请关掉。The radio is too noisy. Please ____ _____ _____.
②turn相关短语：turn around 意为“转身 ”；turn up 意为“____”；turn down意为“____” ；turn into 意为“____” ；turn on 意为“____”等。
2. afford
【归纳】afford作动词，意为“_____”。 afford to do sth. (常与can, be able to连用) ，意为“____”。例如：我们付不起这个价钱。We can’t afford to pay such a price.
知识巩固:
Ⅰ.用所给词的适当形式填空
1.We Chat is (consider) as an invention that can help people communicate with each other easily.
2.The (environment) problems in China may be worse and worse if they aren't solved.
3.Researches have (show) that music has an important effect on one's body and mind.
4.We can save water by (turn) off the tap when we don't use it.
5.Turn off the computer when you don't use it.Don't waste______ (electric)．
Ⅱ.根据句意及汉语意思写单词
1. He is too poor to (买得起) those books for his children.
2. Whether you go to a supermarket or clothes store, you can take a (可再次使用的) bag with you.
3. (交通运输) and communications are becoming easier day by day.
4.Speed is their only (有利条件)．
5. We should do whatever we can to (改善) the environment.
Ⅲ.单项选择
1.—Alice,would you mind not playing the guitar I _____ on the phone.
—Oh,sorry,mom.
A.talked B.talk C.was talking D.am talking
2.—Jane,when did you come here
—In 2014.I _____ here for two years.
A.have been to B.have gone to
C.have come D.have been
3.—What languages ______ in that country
—German and English.
A.are speaking B.are spoken
C.speak D.is spoken
4.Many trees should _____ every year.It’s good for us all.
A.plant B.are planted C.be planted D.were planted
5. —I’m new here.
—Don’t worry. I’ll do what I can ________ you.
A. help B. to help C. invite D. to invite
6.—Why don't you buy the computer
—It's too expensive.I can't it.
A. afford　　B. sell　　C. borrow　　D. keep
7. Anyone who sings well can the activity in our school.
A. take part in B. take off
C. take out D. take care of
8.—How much is the ticket to the People's Park
—A one way ticket $40, and you can another $20 for a round trip ticket.
A. costs, pay B. cost, spend
C. pay, spend D. spends, pay
9. She used to a bus to school, but now she is used to to school.
A. taking, walk B. take, walk
C. taking, walking D. take, walking
10.—Dad, must we wait until the light becomes green
—Yes, I'm afraid we . That's the traffic rule.
A. can B. may C. have to D. need
Ⅳ.根据汉语意思完成句子
1.他们可以参加这项工程来保护环境。
They can the project to protect the environment.
2.如果你打破这个杯子，你将不得不赔偿。
You'll have____ it if you break the cup.
3．我认为拯救地球要从小事做起。
I think that the earth begins small things.
4．我过去一直认为帮助贫困的人解决困难是正确的事情。
I had always thought it was the right thing a needy person.
5．他待在家里而没有上学。
He at home to school.
参考答案
导学设计
1.①关掉，中间，turn it off②调高(音量),调低/拒绝, 变成/ 进入,打开/发动 2.承担得起/买得起，买得起/有足够的……
知识巩固
Ⅰ.1.considered 2.environmental 3.shown 4.turning 5.electricity
Ⅱ.1.afford 2.reusable 3.Transportation 4.advantage 5.improve
Ⅲ. 1-5 DDBCB 6-10AAADC
Ⅳ.1.take part in 2.to pay for 3.saving, with 4.to help out 5.stayed , instead of going