Unit 13 We are trying to save the earth教案.docx

Unit 13 We are trying to save the earth教案.docx

《Unit 13 We are trying to save the earth教案.docx》由会员分享，可在线阅读，更多相关《Unit 13 We are trying to save the earth教案.docx（37页珍藏版）》请在冰点文库上搜索。

Unit13Wearetryingtosavetheearth教案

Unit13We’retryingtosavetheearth!

一、教学目标：

1.语言知识目标

基本词汇：

litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin,shark,fin,method,cruel.Harmful,chain,ecosystem,industry,law,scientific,afford,reusable,transportation,recycle,napkin,upside,gate,bottle,president,inspiration,iron,work,metal,creativity,

基本词组：

beharmfulto,atthetop（ofsth.）,takepartin,turnoff,takeaction,throwaway,putsth.togooduse,pull…down,bringback

基本句型：

We’retryingtosavetheearth!

Theriverusedtobesoclean.

Theairisbadlypolluted.

Noscientificstudieshaveshowedthatsharkfinsaregoodforhealth.

Weshouldhelpsavethesharks.

2.技能目标:

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.情感目标:

有环境危机意识，学会关注环境保护环境。

二、教学重难点：

1.教学重点：

（1）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。

（2）保护环境的措施方法。

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）

Learningobjectives:

1.Tolistenforspecificinformation.

2.Totalkaboutpollutionandenvironmentalprotection.

3.Tolearntousethesentencepatterns.

usedto...butnowshoulddosth.

I.Presentation

Showthepictureoftheearthandtellstudentstheearthispollutednow.

Forexample:

（1）Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.

（2）Factoriesputwasteintotheriver.

（3）Peopleshouldthrowawaylitterinthebin.

（4）Therearemorecarsontheroad.

Learnsomenewwords.

II.Workon1a

Herearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.

loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephones

noisepollutionairpollutionwaterpollution

____________________________________

____________________________________

____________________________________

____________________________________

III.Listening

1.Workon1b.Listenandcompletethesentences.

Whatwastheproblem?

Theriverwas_____________.Eventhebottom（底部）oftheriverwasfullof________.Therewerenomore______forfishermen（渔民）tocatch.

Whatcausedtheproblem?

Peoplearethrowing_______intotheriver.Factoriesareputting______intotheriver.

Howshouldtheproblembesolved?

Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.

2.Listenagainandanswerthefollowingquestions.

1）WhatdoesTonywanttodolaterthisafternoon?

HewantstogoswimmingwithMarkintheriverlaterthisafternoon.

2）Whydoesn’tMarkwanttogowithTony?

Becausetheriverwasreallydirty.Eventhebottomoftheriverwasfullofrubbish,andtherewerenomorefishforfishermentocatch.

3）Howwastheriverinthepast?

Itusedtobesoclean.Ithasbeenthenicestriverinthistown.

3.原文

usedtodosth.“过去常常……”表示过去习惯性的动作但如今已不存在。

playapartindoingsth.“参与做某事;在做某事上起作用”。

IV.Practice

1.Role-playtheconversationin1c.

Mark:

Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.

Tony:

Butitusedtobesoclean!

Mark:

Yes,butpeoplearethrowinglitterintotheriver.

Tony:

Everyoneinthistownshouldplayapartincleaningitup!

2.Makeconversationsusingthepollutionin1a.

A:

Theriverhasalwaysbeenthenicestriverinthistown.

B:

Yes,itusedtobesoclean.

A:

ButIwastherelastweekendandtheriverwasreallydirty.

B:

Whatcausedtheproblem?

A:

Peoplearethrowinglitterintotheriver.

B:

Whatshouldwedo?

A:

Factoriesarealsoputtingwasteintotheriver.

B:

Yes,everyoneinthistownshouldplayapart.

A:

Weshouldwritetothegovernmentandaskthemtoclosedownthefactories.

B:

Whatelsecanwedo?

A:

Everyoneshouldhelptocleanuptheriver.

V.Languagepoints

1.We’retryingtosavetheearth!

我们正在竭尽全力拯救地球!

trytodo=tryone’sbesttodo尽力去做某事

【运用】

我会尽力做好这项工作。

___________________________________

We’ll try tofinishtheworkinaweek.  

try短语

trydoingsth.试着做某事

tryon 试穿

tryout 尝试；试验；试试

 用try短语的适当形式填空。

1）Iwenttothetailor’sto_________mynewsuit.

2）Let’s_________yourmethod.Itseemsverygood.

3）Ithinkyoushould_____________toimproveyourEnglish.

4）Letme____________thestory.

让我试着讲一讲这个故事吧。

2.Herearesomewordsrelatedtodifferentkindsofpollution.

berelatedto与…有关

e.g.Isthedriverrelatetotheaccident?

司机和这起事故有关吗？

VI.Listening

1.Workon2a.Listentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.

A.landpollutionB.airpollution

C.noisepollutionD.waterpollution

2.Workon2b.Listenagainandcompletethesentences.

1）Theairisbadlypollutedbecausethereare___________ontheroadthesedays.

2）Factoriesthatburncoalalso________theairwithalotofblacksmoke.

3）Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.

4）Peoplearealsolitteringin______________likeparks.Thisisturningbeautifulplacesintougly（丑陋）ones.

Completethesentencesaccordingtothedialogue.

1.I________abletoseestarsinthesky,butnowIcan’tseethemclearly.usedtobe

2.Theair__________really_______aroundthere.hasbecome…polluted

3.Peoplearealso_______inthepublicplaces.littering

4.Thefactoriesthatburn_____also________theairwithalotofblack

smoke.coal…polluted

3.原文

Payattentiontothesentences.

VII.Practice（Workon2c）

Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.

Jason:

Theairhasbecomereallypollutedaroundhere.I’mgettingveryworried.

Susan:

Yes,Iusedtobeabletoseestarsinthesky.

Jason:

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.Completethesentences.

Whatshouldwedo?

1.Weshouldtake_______or_______insteadofdriving.

2.Weshouldalso__________________.It’sgoodforhealth!

3.Bring_______togoshopping.

4.Nevertake_________________or__________whenbuyingtakeawayfood.

5.______________inthebinsandkeeppublicplacescleanandbeautiful.

3.Role-playtheconversation.

Interviewer:

JasonandSusan,whatareyourideasforsolvingtheseproblems?

Jason:

Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.

Susan:

Yeah,orrideabike.Thereareotheradvantages（优点）ofbikeriding.It’sgoodforhealthanditdoesn’tcost（花费）anything!

Interviewer:

Greatideas!

Whataboutwastepollution?

Susan:

Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.

Jason:

Me,too.Also,Inevertakewoodenchopsticksorplastic（塑料）forkswhenIbuytakeaway（外卖食品）food.Iusetheonesathome.

Susan:

Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.

Interviewer:

Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!

4.Payattentiontothesentences.

X.Languagepoints

1.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？

辨析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.ThenewdresscostLinda80yuan.

（1）Ittakessb.sometimetodosth.（主语为it）

（2）sb.spend（s）time/moneyonsth.（主语为sb.）

sb.spend（s）time/money（in）doingsth.

（3）sb.pay（s）moneyforsth.（主语为sb.）

（4）sth.cost（s）sb.money（主语为sth.）

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.

2.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!

makeadifference（to…）表示（对……）产生影响或作用

makenodifferenceto对……没有影响

e.g.LearningEnglishwellcanmakeadifferencetoyourfuture.

学好英语会对你的前途有影响。

XI.Summary

Ⅻ.Exercises

Ⅰ. 根据句意及所给首字母提示，补全句中所缺单词。

1. C                 canbeusedtoproduceelectricity.

2.Thenewcar c                 alotofmoney,butitwascertainlyworthit.

3.Thereisa w                 bed,atableandtwochairsinthissmallroom.

4.Itisaverycleancity.Youwillhardlyfind l                whenyouwalkalongthestreet.

5.Myuncleisagreat f                 andhecaughtfourfishthismorning.

6.Somecupsintheshopareniceandexpensiveandtheothersare u                 andcheap.

7.Livinginthisstreethasalotofa               .Theonlydrawback（弊端）isnoise.

Ⅱ. 根据句意，从方框中选择恰当的短语填空，有的需要变换形式。

writeto,leadto,cleanup,cutdown,playapartin

1.Whatamess!

Youshould____________yourroomnow.

2.Everyfarmerknowsthatweather____________farming.

3.Asweallknow