九年级英语上册教案 Unit 13 Were trying to save the earth

Unit13We,retryingtosavetheearth

一、教材分析

本单元带领学生了解了一些有关地球污染，动物濒危等问题。并且教给大家如何保护濒危

动物，如何通过回收利用等方式来保护地球。本单元分为sectionAandsectionB两个部

分。本课为第一课时带领大家了解地球污染问题，以及探讨如何保护地球，减少污染。

二、三维目标

(-)知识与技能

1.Tolearnthefollowingwordsandexpressions,bottom,coal,p,ublic,ugly,cost,

advantage,method,cruel,harmful,afford.

2.TounderstandthepasageonPage99.

(二)过程和方法

3.Togetageneralknowledgeofpollutionbyreadingandrole-play.

4.Toknowabouthowtoreducepollutionthroughdiscussion.

(三)情感态度和价值观

5.Afterlearningthispart,everystudentwillbeawareoftheserioussituation

ofpullutionanddeterminedtotakeactiontoprotectourearthfronnowon.

三、教学重点

1.Howtousethefollowingwordsandexpressions:cost,advantage,harmful,afford,

usedto,playapartin∙∙∙

2.tounderstandthepassageonPage99.

四、教学难点

1.Howtousethefollowingwordsandexpressions:cost,advantage,harmful,afford,

usedto,playapartin∙∙∙

2.tounderstandthepassageonPage99.

五、教学策略

根据本课教学目标和重点内容，教师可采用听，读，小组讨论，角色扮演等活动来引导学

生进行学习。

六、教学准备

ppt,recorder,mutiple-media

七、教学环节

1、课堂导入

Step1Lead-in

1)Showsomepicturesaboutpollutionandaskstudentstodiscusswhat,.sthe

danger,ofeachkindofpollution.

2)Herearesomewordsarerelatedtodifferentkindsofpollution.Writethem

intheboxbelow,andyoucanaddmorewords.

loudmusic,littering,buildinghouses,cars,ships,mobilephones,rubbish,

factories,planes,smoking.

AirpollutionNoisepollutionWater

3)Role-playthefollowingconversationandmakeyourownconversationsabout

thekindsofpollutionabove.

A:Theriverwasdirty.Eventhebottomoftheriverisfullofrubbish.

B:Butitusedtobesoclean.

A:Yes,butpeoplearelitteringintheriver.

B:Everyoneinthetownshouldplayapartincleaningitup.

2、课堂讲授

Step2.Reading

1)Fast-reading

Nowturntopage99andreadthepagequicklytofindanswerstothesheet.

QuestionsAnswers

Whereshark,sfinsoupispopularSouthernChina

Numbersofsharkscaughtandtraded70million

everyyear

Howmuchthenumbersofsomekindsofover90.percent

sharkshavefalleninthelast20^30

years.

TwoenvironmentgroupswhichareagainstWildAidandtheWWF

finning

2)careful-reading

Readthepassageagainandfillinblanks.

so,although,ifbut,when

①Manypeopledonotrealizetheyarekillingawholesharktheyenjoy

abowlofshark,sfinsoup.

②Sharksareatthetopofthefoodchain,iftheirnumbersdrop,

theocean,secosystemwillbeindanger.

③Manythinkthatsharksaretoostrongtobeendangered,theyarewrong.

(4)therearenoScienfiticstudiestosupportthis,alotofpeople

believethatshark,sfinsaregoodforhealth.

⑤Sharksmaydisappearonedaywedonotdosomethingtostopthesale

ofshark,sfins.

Possibleanswers:when,so,but,although,if

3)Studyingusefulwordsandexpressions.

①costV价钱为，花费n.价钱，代价；花费，费用

Thecostofaloafofbreadhasincreasedfive-fold..一条面包的价钱增长了4

倍。

Badgesarealsoavailableatacostof£2.50.徽章也有卖的，2.5英镑一枚。

,

Itsgoingtocostmeover$100,0r00tobuynewtrucks.

买几辆新卡车将花掉我10万多美元。

②harmfuladj.对…有害的；能造成损害的；不利；不良

Smokingisharmfultoourhealth.

吸烟对人.类的健康有害。

③usedtodo过去一向，过去时常，过去曾（而现在不再）做

WhousedtodoyourIaUndry?谁过去一直为你洗衣服？

Sheusedtowashdishesinarestaurant.她曾经在餐馆里洗过盘子。

④affordvt.买得起；担负得起；提供；给予

Wecouldn,taffordtobuyanewcar.我们买不起新的车。

Wecan,taffordtowait.我们等不起。

Myparentscan,tevenaffordanewrefrigerator.

我父母甚至买不起,一台新冰箱。

⑤playapartin扮演某角色;与…有关，对…有影响

Γdliketoplayapartintheirdiscussion.我.愿意参与他们的讨论。

Educationisplayingabigpartinenvironmentalprotection.

教育在环境保护中起着很大作用。

HeplayedapartinhisfavoriteTVshow.

他在他最喜欢的电视节目中扮演了一个角色。

3、课堂练习

Step3Exercises

Translatethefollowingphrases:

1.对…有害

2.买得起…..

3.在……中起作用

4.过去常常

5.解决问题

6.起作用

7.听说

8.在……顶部

9.在……底部

10.切下，割下

4、课堂活动

Step4Activities∖

Inyourgroupmakealistofthingspeoplecandotohelptheenvironment.

5、课堂小结

Step5.Summarize

Lookbackonwhatwehavelearned.

1.Howtoprotectenvironment.

2.UsefrU1languages:beharmfulto,atthetopof,atthebottomof.Solve

problems--,

6、作业布置

Homework:makeaconversationwithyourparnteraboutwhatyoucandotoreduce

pollution.

八、板书设计

Unit13We,retryingtosavetheearth

1.cost:Vsth.costmoney

2.harmful:beharmfulto

3.usedto:usedtodo

4.afford:affordsth./affordtodo

5.playapartin

九、教学反思

通过本课学习，学生们了解了污染以及污染带来的危害，以及保护动物的必要性。学完本

课后，同学们要积极行动起来，为保护环境，保护动物作贡献。

Unit13We'retryingtosavetheearth

教材分析

本单元带领学生了解了一些有关地球污染，动物濒危等问题。并且教给大家如何保护濒危

动物，如何通过回收利用等方式来保护地球。本单元主要复习语法内容为情态动词和动词形

式变化。本课主要带领大家进行语法复习，巩固语法知识。

十、三维目标

（-）知识与技能

1.Tolearndifferentformsofverb.

2.ToundrerstandtheuseofModalVerbs.

（二）过程和方法

3.Toknowhowtousedifferentformsofverbindifferentsituations.

4.ToknowhowtouseModalVerbsindifferentsituations.

（三）情感态度和价值观

5.Afterlearningthispart,everystudentwillbeabletodescribetheirawareness

oftheserioussituationofpullutionandsolutionstoenvironmentalproblems

usingwhatwehavelearnedinthislesson.

教学重点

1.Tochangeformsofverbaccordingtospecificsituation.

2.TouseModalVerbsproperly.

教学难点

1.Tochangeformsofverbaccordingtospecificsituation.

2.TouseModalVerbsproperly.

十一、教学策略

根据本课教学目标和重点内容，教师可采用读，小组讨论，口头及书面练习等活动来引导

学生进行学习。

十二、教学准备

ppt,recorder,mutiple-media

十三、教学环节

7、课堂导入

Step1Lead-in

判断下列句子中使用了什么时态及情态动词。

1.Wearetryingtosavetheearth.

2.Theriverusedtobesoclean.

3.Itwasconsideredthenicestriverinthetown.

4.Theairhasbecomereallypolluted.∖

5.Weshouldhelpsavewthesharks.

Answers:1.现在进行时2.usedto3.一般过去时的被动语态4.现在完成时5.should

8、课堂讲授

Step2.Presentation

1)Reviewdifferentformsofverb

ask现在时过去时将来时过去将来时

主动语态should/would

ask/asksaskedshall/willask

ask

般被动语态shall/willbe

am/is/areaskedwas/wereaskedshould/wouldbeasked

asked

主动语态was/were

进am/is/areasking

asking

行

被动语态

主动语态have/hasaskedhadasked

完

被动语态have/hasbeen

成hadbeenasked

asked

2)ReviewModalverbs.

MainfunctionofModalVerbs.

①

can(could)表示能力，CoUId主要指过去时间；表示允许。

②

③may表允许，might可以指过去时间，也可指现在时间，语气更委婉。

④must表示义务。意为“必须”(主观意志)

⑤shall表征询意见

⑥WiII表意愿，用于各种人称陈述句；表请求，用于疑问句。

should/oughtto应该

课堂练习

Stepr3Exercises

1)Fillinblankswiththecorrectformsofverbs.

Interviewer:youever(take)partinanenvironmentalproject?

Ken:Yes,Ihave.I(help)withaClean-UpDaylastyear.Itwas

(consider)thebiggestclean-upprojectthiscity

ever(have).

Interviewer:Howmanypeople(take)part?

Ken:I(think)morethan1,OOOpeople(come)tohelpout.

Interviewer:That,sfantastic!Iguesseveryoneinthiscityis(try)

toimprovetheenvironment.

Ken:Yes,evertoneshould______,(play)apartinkeepingthecityclean.

Possibleanswers:Havetaken,helped,considered,hadhad,took,think,came,trying.,

play

2)Fillinblankswithpropermodalverbs.

Canwouldcouldhavetoshouldmight/maymust

Whenitcomestosavingtheearth,peoplethinkthatbigthingsbe.

done.However,manyforgetthatsavingtheearthbeginswithsmallthings.Forexample,

Yousaveelectricitybyturningoffthelightswhenyouleavearoom.You

ralsousepaperorreusablebagsinsteadofplasticbags.Insomestores,you

nowpayforplasticbags.Ithinkthisisagreatidea.Andinsteadof

drivingtoschoolorwork,you________rideyourbikeorwalk.Ifit,sfar,you

takethebus.Allthesesmallthingsaddupandbecamebigthings

thatimprovetheenvironment.Wecan,taffordtowaitanylongerbefore

takingaction.

Possibleanswers:may,can,t,can,could,haveto,may/might,should,would,must

10、课堂活动

Step4Activities∖

Inyourgroupmakealistofthingspeoplecandotohelptheenvironmentandpresent

them.

Youcanusefollowing,examples:

1)Weshouldusepublictransportation.

2)wemustsavewater.

3)…

11、课堂小结

Step5.Summarize

Lookbackonwhatwehavelearned.

1)动词的各种时态语态的变形。

do现在时过去时将来时过去将来时

should/would

do/doesdidsrhall∕willdo

do

般被动语态shall/willbe

am/is/aredonewas/weredoneshould/wouldbedone

done

进主动语态am/is/aredoingwas/weredoing

行被动语态

主动语态have/hasdonehaddone

完

被动语态have/hasbeen

成hadbeendone

done

2

①

②can(could)表示能力，could主要指过去时间；表示允许。

⑨may表允许，might可以指过去时间，也可指现在时间，语气更委婉。

Qmust表示义务。意为“必须”(主观意.志)

⑤shall表征询意见

Win表意愿，用于各种人称陈述句；表请求，用于疑问句。

@.should/oughtto应该

12、作业布置

Homework:ReviewthislessonandpreviewSectionB.

十四、板书设计

Unit13Weretryingtosavetheearth

1.被动语态的构成

2.情态动词：φ.can(could)

-五、教学反榜may

通过本课学习，房缴擀一步了解了动词各种形势变化，及情态动词用法。

U≡itvifl3We,retryingtosavetheearth

ɪ住」.八®-should/oughtto

打材分析wx

本单兀带领学生了解了一些有关地球污染，动物濒危等问题。并教给大冢血何保护濒危

动物，如何通过回收利用等方式来保护地球。本单元分为sectionAandsectionB两个部

分。本课为第三课时带领大家了解我们能为地球做些什么。

三维目标

(-)知识与技能

1.Tolearnthefollowingwordsandexpressions,gate,bottle,president,,metal

等。

2.TounderstandthepasageonPage102.

(二)过程和方法

3.Togetageneralknowledgeof,pollutionbyreadingandrole-play.

4.Toknowabouthowtoreducepollutionthroughdiscussion.

(三)情感态度和价值观

5.Afterlearningthispart,everystudentwillbeawareoftheserioussituation

ofpullutionanddeterminedtotakeactiontoprotectourearthfronnowron.

十六、教学重点

1.Toknowthefollowingwords:gate,bottle,president,,metal,puttogooduse,

setup,knownfor,pulldown,notonjy∙∙∙butalso等

2.tounderstandthepassageonPage102.

十七、教学难点

1.Toknowthefollowingwords:gate,bottle,president,,metal,puttogooduse,

setup,knownfor,pullrdown,notonly∙∙∙butalao等

2.tounderstandthepassageonPage102.

十八、教学策略

根据本课教学目标和重点内容，教师可采用听，读，小组讨论，角色扮演等活动来引导学

生进行学,习。

十九、教学准备

ppt,recrorder,mutiple-media

二十、教学环节

13、课堂导入

Step1Lead-in

Discussion:whatcanwedotohelpsavetheplanet?Ranktheseitemsfromtheeasist

(1)tothemostdifficult(5).

stopridingincars.

recyclebooksandpapers.

Turnoffthelightswhenyouleavearoom.

Turnofftheshowerwhenyouwashingyourhair.

Don,tusepapernapkins.

Possibleanswers:53124

14、课堂讲授

Step2.Reading

1)Fast-reading

Nowturntopage102andreadthepagequicklytofindanswerstothechart.

NameWhatmaterialsdidtheyWhatdidtheymake?

use?

Answers:

NameWhatmaterialsdidtheyWhatdidtheymake?

use?

AmyHayesOld,boat,rocks,oldgalssAhouse

bottles,materialsfrom

oldhouses

JessicaWorngOldclothesbags

WangTaoIronandothermaterialsArtpieces

fronoldcars

2)careful-reading

Raedthepassageagainandfillinblanks.

puttogooduse,setup,knownfor,pulldown,notonly∙∙∙butalao,build∙∙∙outof

①AmyHayeslivesintheUk.Manyoftheoldbuildingsinherneighborhoodwere

②AlltherubbishandoldthingsinAmy,sneighborhoodwerethenwhen

Amybuiltherhouse.

③Amyisverycreativeandsheherfrontgatetrocks

andoldglassbottles.Sheputanoldboatontopofherhouse.

(4)JessicaWongsellsherbagsinasmallshop,butshealsoonline

businesstosellthem.

,

⑤ThoughJessicaSbagsaremadefromoldclothes,herbagsarer

beingcuteanduseful.

⑥WangTaromakeslargepiecesofmetalartthatlooklikehumansor

animals,makesmallerpiecesforthehome.

Possibleanswers:pulleddown,puttogooduse,builtoutof,setup,knownfor,not

only∙∙∙butalso

3)Studyingusefulwordsandexpressions.

①put-intouse:应用；利用；投入使用

Thefirstdigitalcomputerwasputintousein1944.

一九四四年,第一台二位制计算机投入了使用.

Thenewlybuiltwaitingbuildingwasputintousetoday.

这座新建的候机楼今起启用.

②setup竖立；升起；建立；设立；创立；创造(纪录等)

Theysetupsomestonesaslandmarks.他们竖起一些石头当界碑。

Theschoolhassetupaspecialclasstohelppoorreaders.

TheFrenchteamsetupanewrecordattonight,smeeting.

③knownfor:以…而着名，出名，以见长

Mrs.brownisknown,forherhospitality.

布朗夫人以其好客闻名。

Londonusedtobeacityknownforits“blackfogs.”

伦敦的“黑雾”一向闻名。

Beknownas:以作为…而著称

Nowhewasknownasast