Unit13Wearetryingtosavetheearth教学设计教案Word文件下载.docx
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2.教学难点：
能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。
3.
教学用具
多媒体设备
4.
标签
教学过程
I.Presentation
Showthepictureoftheearthandtellstudentstheearthispollutednow.
Forexample:
（1）Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.
（2）Factoriesputwasteintotheriver.
（3）Peopleshouldthrowawaylitterinthebin.
（4）Therearemorecarsontheroad.
II.Learning
Herearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.
noise
pollution
airpollution
waterpollution
____________
___________
_____________
Keys
:
noise
loudmusic
planes
mobilephones
buildinghouses
factories
smoking
cars
buildinghouses
waterpollution
ships
rubbish
littering
factories
III.Listening
1.1bListenandcompletethesentences.
Keys:
reallydirty
rubbish
fish
litter
waste
government
closedown
cleanup
2.Listenagainandcheck（√）thesentencesyouhear.
1）Wecouldgofishingintheriver.
2）Theriverwasreallydirty.
3）Theriverhasalwaysbeenthenicestriverinthistown.
4）Weshouldasktheteachersforhelp.
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IV.Practice
1.Role-playtheconversationin1c.
Mark:
Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.
Tony:
Butitusedtobesoclean!
Yes,butpeoplearethrowinglitterintotheriver.
Everyoneinthistownshouldplayapartincleaningitup!
2.Makeconversationsusingthepollutionin1a.
A:
Theriverhasalwaysbeenthenicestriverinthistown.
B:
Yes,itusedtobesoclean.
ButIwastherelastweekendandtheriverwasreallydirty.
Whatcausedtheproblem?
Peoplearethrowinglitterintotheriver.
Whatshouldwedo?
Factoriesarealsoputtingwasteintotheriver.
Yes,everyoneinthistownshouldplayapart.
Weshouldwritetothegovernmentandaskthemtoclosedownthefactories.
Whatelsecanwedo?
Everyoneshouldhelptocleanuptheriver.
V.Languagepoints
1.We’retryingtosavetheearth!
我们正在竭尽全力拯救地球!
trytodo=tryone'
sbesttodo努力去做某事。
e.g.Everystudentshouldtrytostudyhardinordertostudyinauniversity.
为了进入大学学习，每个学生都应该努力学习。
2.Herearesomewordsrelatedtodifferentkindsofpollution.
berelatedto
与…有关
e.g.
Iamnot
related
to
himinanyway.我和他无任何关系。
3.Everyoneinthistownshouldplayapartincleaningitup!
playapartin
在……方面起作用
e.g.Agooddietplaysalargepartinhelpingpeoplelivelonger.
健康的饮食在帮助人们长寿方面起着非常大的作用。
playapart
在……中扮演角色
e.g.HewasinvitedtoplayapartinthisTVplay.
他被邀请参加这个电视剧的演出。
4.Eventhebottomoftheriverwasfullofrubbish.
Yes,butpeoplearethrowinglitterintotheriver.
litter和rubbish都可指“垃圾”，用作不可数名词。
rubbish指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。
litter指“（室内或公共场所）乱扔的废物（纸屑、不要的包装纸、废瓶等）”还可回收
e.g.Throwtherubbishout.
把垃圾扔出去。
Theroomisfullofrubbish.
房间里堆满了垃圾。
Pickupyourlitterafterapicnic.
野餐后将废弃物收拾好。
VI.Listening
1.2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.
A.landpollution
B.airpollution
C.noisepollution
D.waterpollution
BA
2.2bListenagainandcompletethesentences.
1）Theairisbadlypollutedbecausethereare___________ontheroadthesedays.
2）Factoriesthatburncoalalso________theairwithalotofblacksmoke.
3）Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.
4）Peoplearealsolitteringin______________likeparks.Thisisturningbeautifulplacesintougly（丑陋）ones.
morecars
pollutearethrowingaway
publicplaces
3.Listenandanswerthequestions.
1）Whoistheinterviewertalkingto?
2）Whataretheytalking?
3）Whatotherproblemsdotheysee?
SusanandJason.
Theenvironmentalproblems.
There'
stoomuchrubbishandwasteinthestreets.
VII.Practice（2c）
Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.
Jason:
Theairhasbecomereallypollutedaroundhere.I'
mgettingveryworried.
Susan:
Yes,Iusedtobeabletoseestarsinthesky.
Theproblemisthat…
VIII.Discussion
Askstudentswhatweshoulddotosavetheearth.Helpstudentsanswer,turnoffthe
lightswhenyouleavearoom;
stopridingincars;
stopusingpapertowelsornapkins;
recyclebooksandpaper.
IX.Reading
1.Read2dandcompletethechart.
2.Role-playtheconversation.
Interviewer:
JasonandSusan,whatareyourideasforsolvingtheseproblems?
Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.
Yeah,orrideabike.Thereareotheradvantages（优点）ofbikeriding.It’sgoodforhealthanditdoesn'
tcost（花费）anything!
Greatideas!
Whataboutwastepollution?
Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.
Me,too.Also,Inevertakewoodenchopsticksorplastic（塑料）forkswhenIbuytakeaway（外卖食品）food.Iusetheonesathome.
Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.
Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!
X.Summaryandlanguagepoints
1.Thisisturningbeautifulplacesintouglyones.
turn…into…
把……变成……
e.g.Theicyrainseemedliketoturnintosnow.
渐渐地冻雨又变成雪花的模样。
2.It’sgoodforhealthanditdoesn’tcostanything!
cost
v.花费；
使付出
指花费金钱，主语通常是物。
cost的过去式和过去分词均为cost。
e.g.ThenewshirtcostMrWang200yuan.
王先生花了200元买了新衬衫。
Howmuchdoesthenewcomputercost?
新电脑花了多少钱？
take,spend,pay&
cost
take，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。
1）take多表示花费时间，常用于Ittakessb.sometimetodosth.这一句型中，其中it作形式主语。
e.g.Itusuallytakesme40minutestocookthedinner.
2）spend多表示花费时间和金钱，主语通常是人，常用于sb.spend（s）sometime/moneyonsth.和sb.spend（s）sometime/money（in）doingsth.两种句型。
e.g.Davidspent2,000yuanonthenewmachine.
Myfatherspendsanhour（in）watchingthenewsonTVeveryday.
3）pay多表示花费金钱，主语通常是人，常用于sb.pay（s）somemoneyforsth.句型。
e.g.Tommypaid20yuanforhisbreakfastyesterday.
4）cost多表示花费金钱，主语通常是物，常用于sth.cost（s）（sb.）somemoney.句型。
e.g.ThenewdresscostLinda88yuan.
根据句意用take,spend,pay或cost的适当形式填空。
1）Thatnewcar________
themlotsofmoney.
2）Mona__________50yuanonthebooksjustnow.
3）Itusually_______
meanhourtodomyhomework.
4）Youshould__________
sometimepractisingyourpronunciation.
5）Mybrother_______
6,000yuanforthenewcomputeryesterday.
Keys
cost
spent
takes
spend
paid
3.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!
makeadifference（to…）
表示（对……）产生影响或作用
e.g.Doyouthinkhiswordswouldmakeanydifferencetothefinaldecision?
你认为他的话会对最后的决定产生影响吗？
ThenewteacheralwaysencourageslittleTom.Thishasmadeabigdifference
tohim.
新来的老师总是鼓励小汤姆，这对他影响很大。
XI.Exercises
用动词的适当形式填空。
1）We'
retrying_______（save）theearth.
2）Thereusedto_____（be）cleanandbeautiful.
3）Therearetoomany______for________tocatch（fish）.
4）It'
sbadforenvironmenttouse_________（wood）chopsticks.
tosave
be
fish
fishermen
wooden
XII.Thinkabout
Theearthisbadlypolluted.Pleasemakeaposterandthinkofwhatwecando.
XIII.Homework
1.Copythenewwordsandrememberthem.
2.Readthelisteningmaterialsof1b,2a.
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