仁爱英语九年级上教案U2T2SC.docx

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仁爱英语九年级上教案U2T2SC

SectionC

Ⅰ.Materialanalysis

本课是九年级第二单元第二话题的第三课时,主活动是1a和3。

通过阅读1a,进一步学习各种污染对地球造成的危害和造成这些污染的原因,培养学生通过图片预测文章大意的能力,其中出现了很多关于环境的专业术语,需要学生了解。

1b是训练学生运用不同的阅读策略完成不同的任务,如:

通过观察1a中的图片匹配相应的标题,再阅读文章,给每段话选择标题;另外,继续训练学生通过语境,找出单词指代的内容;最后在理解课文的前提下,归纳文章的大意。

1c培养学生通过精读文章,学会用简单的词句做笔记,再通过1c表格中的内容简要复述文章大意。

2是培养学生的资源策略。

要求学生合理地运用网络资源查找与环境危害相关的信息,然后进行小组讨论,并要求学生做好笔记,为任务3做准备。

3要求学生运用这些信息,在1c和2的基础之上进行写作练习,教师应强调衔接词在作文中的重要性。

由于课堂上不方便完成2,因此,可将2和3安排为课后作业。

通过读写的结合训练,引导学生关注全球环境的现状,意识到环境保护的重要性,树立正确的环保观念。

Ⅱ.Teachingaims

1.Knowledgeaims:

掌握本课的重点词汇和短语,初步感知定语从句。

进一步学习各种污染对地球造成的危害和造成这些污染的原因。

2.Skillaims:

能读懂有关环境问题的文章。

能根据不同的阅读目的,运用简单的阅读策略获取信息。

能正确运用网络资源获取需要的信息。

能用英语书面的形式表达环境问题的成因及危害。

3.Emotionalaims:

(optional)

通过学习,了解环境现状,帮助学生树立绿色环保意识。

4.Cultureawareness:

(optional)

了解各种环境问题,如臭氧空洞,温室效应等,意识到环境问题的严峻形势。

Ⅲ.Thekeypointsanddifficultpoints

1.Keypoints:

Wordsandphrases:

hole,form,rise,oxygen,ozonelayer,radiation,directly,carbondioxide,blanket,escape,thegreenhouseeffect,refer

duringthisperiod,takeaway,passthrough

Sentences:

(1)Forestshavebecomedeserts,somoreandmoresortsofanimalsandplantsaredisappearing.

(2)Asaresult,manyriversandlakesarenowdead.

(3)Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.

(4)Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.

(5)Whenitrainsorwhenthewindblows,theearthistakenaway.

(6)Theheatfromthesuncan’tescape,sothetemperatureisrising.

Grammar:

indefinitepronounandadverb

2.Difficultpoints:

理解有关环境方面的专业术语。

能读懂与环境问题相关的科普类文章。

能运用所学知识,写出谈论环境现状的文章。

Ⅳ.Learningstrategies

能在阅读不同体裁的材料时,运用不同的阅读策略获取信息。

善于利用插图预测科普类文章的内容。

能合理运用网络资源,拓展写作思路和开拓视野。

恰当使用连接词,使自己的作文流畅,有逻辑层次。

Ⅴ.Teachingaids

与环境相关的图片;单词卡片(如O2/oxygen;ozonelayer;radiation等);录音机;国际臭氧层保护日宣传动画片等。

 

Ⅵ.Teachingprocedures

Stage

(timeperiod)

Interaction

patterns

Teacheractivity

Studentactivity

Remarks

1

Gettingstudentsreadyforlearningandrevision

(2mins)

Classactivity

ChecktheSs’homework:

LettheSsgiveareportabouttheirownbadhabitsandhowtomakethecampusbetter.

T:

Hi,everyone.Lastclass,wehavetalkedsomethingabouttheschoolenvironment.Someofusmayhavesomebadhabits,andthesehabitscanaffectourcampus.Whatcanyoudotomakeourcampuslookbetter?

Pleaseshareyouropinionswithus.

S1:

IoftenforgettoturnoffthelightswhenIleavetheclassroom.Ithinkitdoesn’tmatterifthelightsareonforalittlewhile.AndIoftenwastesomepaperafterIonlyuseasmallpartofit.Iliketousenewpaper.ButnowIrealizethesehabitsarereallybadones,soIhopeeveryoneofuscansaveenergyfromnowon.

T:

Verygood.Ifyoucangivemoresuggestions,itwillbebetter.Nextone.

S2:

Ialwaysmakeloudnoisebetweenclasses.Itdisturbsothers.Ioftenthrowrubbisharoundinacornerifthereisnobody.Butfromnowon,Iwillremembertogetridofthebadhabits.Ifeveryonecanfollowtheschoolrules,ourcampuswillbecomemorebeautiful.

S3:

T:

Great.

Giveareportaboutyourownbadhabitsandhowtomakethecampuslookbetter.

 

S1:

IoftenforgettoturnoffthelightswhenIleavetheclassroom.Ithinkitdoesn’tmatterifthelightsareonforalittlewhile.AndIoftenwastesomepaperafterIuseonlyasmallpartofit.Iliketousenewpaper.Ihopeeveryoneofuscansaveenergyfromnowon.

 

S2:

Ialwaysmakeloudnoisebetweenclasses.Itdisturbsothers.Ioftenthrowrubbisharoundinacornerifthereisnobody.Butfromnowon,Iwillremembertogetridofthebadhabits.Ifeveryonecanfollowtheschoolrules,ourcampuswillbecomemorebeautiful.

S3:

用报告的形式让学生在课堂上反思自己平时的言行,有助于学生更好提升自己,培养“爱护环境从我做起,从小事做起”的意识。

2

Lead-in

(3mins)

Classactivity

Playthecartoonvideoaboutprotectingtheozonelayer.LettheSswatchanddiscusswhattheyhavelearntfromit.Takesomenotesifnecessary.

T:

Hereisavideoaboutprotectingtheozonelayer.Let’swatchitcarefully.ThenIwillaskyousomethingaboutit.

...

T:

NowLet’sfigureoutsomethingaboutozonelayer.Isozonelayerimportantorunimportant?

Ss:

It’sveryimportant

T:

Cantheozonelayerprotectus?

Ss:

Yes.

T:

Whathappenedtoitnow?

Ss:

Thereisabigholeintheozonelayer.

T:

Yes.What’stheeffectofit?

Ss:

It’sharmfultoallthelivingthings,especiallytohumansforitdoesharmtooureyesandskin.

Watchthevideoanddiscusswhattheyhavelearntfromit.Takesomenotes.

 

Ss:

It’sveryimportant

Ss:

Yes.

Ss:

Thereisabigholeintheozonelayer.

Ss:

It’sharmfultoallthelivingthings,especiallytohumansforitdoesharmtooureyesandskin.

通过播放视频,让学生了解每年的9月16日是国际臭氧层保护日,关注臭氧层的现状。

该宣传片是卡通版,不是枯燥的科教片,能够很好地吸引学生的注意力。

如果条件不允许,教师可以从课外书籍上选读一些与环境相关的文章。

3

Pre-reading

(5mins)

Classactivity

 

Classactivity

Step1:

Showtwopicturesofozonelayerandmorecarbondioxide.IntroducethemtotheSsbrieflytoteachthenewwords.

T:

Right.Ozoneisaspecialkindofoxygen.Itcanprotecttheearth.Nowpeopleproducelotsofharmfulchemicalsintotheair.Theycauseabigholeintheozonelayer.Sotheradiationcanpassthroughtheholeandreachtheearthdirectly.

(ShowthepictureofmorecarbondioxideandleadtheSstolearnthenewwordsinthesameway.)

Step2:

GuidetheSstopredictthemainideaofthepassagebythegivenpictures.

T:

NowlookatthepicturesonPage39,canyouguesswhatwewilllearninthepassage.

S1:

Somethingaboutpollution.

S2:

Trafficpollution/airpollution

S3:

Ozonelayer

S4:

Cuttingdowntrees

S5:

Carbondioxide

Lookatthepicturesandlearnthenewwordsaccordingtoteacher’sdescriptions.

 

Predictthemainideaofthepassagebythegivenpictures.

 

S1:

Somethingaboutpollution.

S2:

Trafficpollution

S3:

Ozonelayer

S4:

Cuttingdowntrees

S5:

Carbondioxide

在观看宣传片后,再介绍有关臭氧层和温室效应的英文词汇,学生容易理解,也容易掌握。

 

培养学生通过观察图片,预测课文内容的能力,这有助于学生在日常阅读中,快速获取信息。

4

While-reading

(20mins)

Individualwork

 

Individual

work

 

Groupwork

Step1:

LettheSsmatchthepictureswiththetitlesin1of1b,andthenreadparagraphs2-6quicklyandwritedownthepropertitleinfrontofeachparagraph.

T:

Excellent.Nowread1aquickly,matchthepictureswiththetitlesinExercise1quickly.

S1:

Picture1istrafficpollution.

S2:

Picture2istheozonelayer.

S3:

Picture3isfewertrees.

S4:

Picture4ismorecarbondioxide.

S5:

Picture5isfactorypollution.

T:

Right.Nowpleasereadparagraphs2-6quickly,chooseatitleforeachparaandwritedowninfrontofit.

T:

OK,let’schecktheanswertogether.

S6:

Para2isfewertrees.

S7:

Para3istrafficpollution.

S8:

Para4isfactorypollution.

S9:

Para5istheozonelayer.

S10:

Para6ismorecarbondioxide.

Step2:

LeadtheSstoreadparagraph1,5and6,findthewordsinExercise2,3and4andguessthemeaningsofthemaccordingtothecontent.

T:

Great.Nowreadparagraph1,5and6,findthewordsinExercise2,3and4andguessthemeaningsofthemaccordingtothecontent.

T:

Whatdoes“ourplanet”meaninthispara?

S1:

Itmeans“theearth”.

T:

Whatdoestheword“blanket”referto?

S2:

Carbondioxidearoundtheearth.

T:

Whatdoestheword“it”inPara5referto?

S3:

Itrefersto“O3”.

Step3:

LettheSsread1acarefully,choosethebesttitleforthepassageandfinish5in1b.Thencompletethenotesin1caccordingto1a.

T:

Pleasereadthepassageandchoosethebesttitleforthepassage.

T:

OK.Haveyougotthemainideaofthepassage?

S4:

Yes.Environmentalproblems.

T:

Right.Trytofinishthenotesin1caccordingtothepassage.Payattentiontousethekeywordswhentakingnotes.Youcandiscusswithyourgroupmembers.

T:

OK.Haveyoufinished?

What’stheeffectoftrafficpollution?

S5:

Peoplehavehealthproblem.

T:

What’stheeffectoffactorypollution?

S6:

Factoriesmaketheriverandlakesdead.

S7:

T:

That’sright.Youdidverywell.

Matchthepictureswiththetitlesin1of1b,andthenreadparagraphs2-6quicklyandwritedownthetitleinfrontofeachparagraph.

 

S1:

Picture1istrafficpollution..

S2:

Picture2istheozonelayer.

S3:

Picture3isfewertrees.

S4:

Picture4ismorecarbondioxide.

S5:

Picture5isfactorypollution.

 

S6:

Para2isfewertrees.

S7:

Para3istrafficpollution.

S8:

Para4isfactorypollution.

S9:

Para5istheozonelayer.

S10:

Para6ismorecarbondioxide.

Readparagraph1,5and6,findthewordsinExercise2,3and4andguessthemeaningsofthemaccordingtothecontent.

 

S1:

Itmeans“theearth”.

S2:

Carbondioxidearoundtheearth.

 

S3:

Itrefersto“O3”.

Read1acarefully,choosethebesttitleforthepassageandfinish5in1b.Thencompletethenotesin1caccordingto1a.

 

S4:

Yes.Environmentalproblems.

 

S5:

Peoplehavehealthproblem.

S6:

Factoriesmaketheriverandlakesdead.

教师在安排1b的阅读任务时,要注意以下两点:

1.引导学生用不同的阅读策略完成不同的阅读任务。

2.任务的安排要有层次性,从易到难。

 

训练学生通过上下文猜测单词指代的内容,有助于学生更好的理解课文。

该环节的三个小任务是用相同的方法获得信息,因此,可以一次性完成。

 

归纳文章中心思想,是学生较为头疼的题目,因此,如果文章较长的话,最好把它放到最后一个环节处理,降低难度,

教师要引导学生用排除法作出正确的选择。

5

Post-reading

(12mins)

Individualwork,Groupworkandclassactivity

 

Pairwork

 

Step1:

LettheSsread1acarefully,findoutthedifficultpoints,andlistthemontheBb.

T:

Read1aagainandfindoutthedifficultpoints.PleasecollectthemingroupsandlistthemonyoursmallBb.

T:

OK,nowlookatthepointsofGroupOneontheBb.Lookatthisone“Whatdoestheword“others”referto?

”Whocandealwithit?

S1:

Somethingwehavedone.

T:

OK,lookatthissentence“theearthistakenaway”.Whocantranslateit?

S2:

Itmeans“泥土被带走了”inChinese.

 

Step2:

GuidetheSstoretellthep

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