Unit 13 We are trying to save the earth人教版新目标英语九年级教学设计 初三教案Word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。
三、教学步骤:
SectionA1(1a-2d)
I.Presentation
Showthepictureoftheearthandtellstudentstheearthispollutednow.
Forexample:
(1)Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.
(2)Factoriesputwasteintotheriver.
(3)Peopleshouldthrowawaylitterinthebin.
(4)Therearemorecarsontheroad.
II.Learning
Herearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.
loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephones
noisepollutionairpollutionwaterpollution
____________________________________
Keys
:
noisepollutionloudmusicplanesmobilephonesbuildinghouses
airpollutionfactoriessmokingcarsbuildinghouses
waterpollutionshipsrubbishlitteringfactories
III.Listening
1.1bListenandcompletethesentences.
Whatwastheproblem?
Theriverwas_____________.Eventhebottom(底部)oftheriverwasfullof________.Therewerenomore______forfishermen(渔民)tocatch.
Whatcausedtheproblem?
Peoplearethrowing_______intotheriver.Factoriesareputting______intotheriver.
Howshouldtheproblembesolved?
Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.
Keys:
reallydirtyrubbishfishlitterwastegovernment
closedowncleanup
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.
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.landpollutionB.airpollution
C.noisepollutionD.waterpollution
BA
2.2bListenagainandcompletethesentences.
1)Theairisbadlypollutedbecausethereare___________ontheroadthesedays.
2)Factoriesthatburncoalalso________theairwithalotofblacksmoke.
3)Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.
4)Peoplearealsolitteringin______________likeparks.Thisisturningbeautifulplacesintougly(丑陋)ones.
morecarspollutearethrowingawaypublicplaces
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.
Problems
Solvingproblems
airpollution
wastepollution
wooden(木头的)chopsticksorplasticforks
rubbish
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!
costv.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.
Keyscost
spent
takesspendpaid
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.
tosavebefishfishermenwooden
XII.Thinkabout
Theearthisbadlypolluted.Pleasemakeaposterandthinkofwhatwecando.
XIII.Homework
1.Copythenewwordsandrememberthem.
2.Readthelisteningmaterialsof1b,2a.
SectionA2(3a-3c)
I.Revision
(1)Role-play2d.
(2)TranslatethesesentencesintoEnglish.
①甚至是河底都满是垃圾。
②这个小镇上的每个人都应该参加打扫。
③骑自行车有其它的优点。
④我买外卖食品从来不拿木筷子和塑料叉子。
II.Leadin
(1)Teachertellsstudentstheearthisbadlypolluted.Whatshouldwedotosavetheearth?
Let’stakeaction.Forexample:
①Turnoffthelightswhenyouleavearoom;
②Takebusesinsteadofdrivingcars
Recyclebooksandpaper.
(2)Therearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!
III.Discussion
(1)Haveyoueverseenashark?
(2)Whatdoyouknowaboutsharks?
IV.Reading
(1)Sharksareendangered,readthepassageandjudgethesentences.
①Shark’sfin(鱼鳍)soupisfamousandexpensiveallaroundtheworld