Unit 2Saving the Earth Topic3公开课教案SD.docx

Unit 2Saving the Earth Topic3公开课教案SD.docx

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Unit2SavingtheEarthTopic3公开课教案SD

Ⅰ.Materialanalysis本课是第二单元第三话题的第四课时。

主要活动是阅读文段和Project。

Grammar和Functions让学生总结本话题的语法重点（并列句）和重要的句子（包括英语习语）。

短文介绍了森林的重要作用、森林遭到破坏的情况及义务植树人的艰难付出。

Project部分采用调查问卷的形式来寻找本班“最环保的人”。

这个活动很有教育意义，可以让学生增强环保意识，争做一个坚定的环保人士。

Ⅱ.Teachingaims1.Knowledgeaims：

掌握本课的重点词汇和短语，归纳并列句的用法。

2.Skillaims:

掌握常见的并列句，并能在写作或口语交际中运用。

在Project中，能够根据问卷要点整理成文。

3.Emotionalaims:

（optional）增强环保意识，争做一个坚定的环保人。

4.Cultureawareness:

（optional）了解世界范围内人们的环保行动。

Ⅲ.Thekeypointsanddifficultpoints

1.Keypoints:

Wordsandphrases:

dry,remove,place,cutdown,sothat,eventhough

Sentences:

Theweathermaybeveryhotanddryoritmaybeverycoldandwet.

Theycarryheavybagsofsmalltrees,andworkinginthemountainscanbedangerous.

Eventhoughtreeplantingisverydifficult,theylovetheirwork.

Grammar:

compoundsentence

2.Difficultpoints：

Forestswerecutdowntoprovidewoodtobuildhouses.

Thereareoftenmanyinsectsthatbitetheseplantersontheirlegs,armsandfaceswhiletheywork.

Eventhoughtreeplantingisverydifficult,theylovetheirwork.

Ⅳ.Learningstrategies在Grammar部分，能够和老师一起总结归纳并列句的用法，使之内化为自己的知识。

能够利用问题来预测短文的内容。

Ⅴ.Teachingaids亚马孙热带雨林的视频或图片/亚马孙热带雨林遭到破坏的视频或图片/教学新词的图片/PPT等。

Ⅵ.Teachingprocedures

Stage

（timeperiod）

Interaction

patterns

Teacheractivity

Studentactivity

Remarks

1

Revision

（10mins）

Individualwork

Individualwork

Classactivity

Step1:

EncouragetheSstoreadtheirhomeworkassignedinSectionC.

T:

Hi,boysandgirls!

Let’sbeginourclasswithyourhomework.Whowouldliketoshareyourhomework?

xxx,howaboutyou?

Step2:

LettheSscompletetheblanksinGrammarandFunctions.

T:

Wow,verygoodwriting!

Nowpleaseopenyourbookandturntopage49.PleasefillintheblanksinGrammarandFunctions.Whenyoufinish,raiseyourhand.

T:

Now,xxx,willyoupleasetellusyourtheanswerstoGrammar?

T:

Doyouthinkso,class?

T:

WhowouldliketoshareyourtheanswerstoFunctions?

T:

Issheright?

Step3:

LettheSssumupthecompoundsentencesandexpressionsofgivingsuggestions.

T:

Inthistopic,wehavelearnedcompoundsentencesandgivingsuggestions.Now,let’ssumup.Couldyoutellmetheconjunctionsusedtocombinecompoundsentences?

T:

Wonderful!

Youcannamesomanyconjunctions.Ihopeyouwillrememberthemandusetheminwritingandspeaking.Next,let’ssumupexpressionsofgivingsuggestions.Whatdoyouusuallyusetogivesuggestions?

ReadtheirpassagesassignedinSectionC

S1:

Windcanproducealotofenergy.

Peopleusewindtotravelonthesea.Theyputalargepieceofclothontheboat,andthenthewindwillmaketheboatmove.InthenorthpartofChina,inthecountryside,farmersusuallyusewindtocleantheircorns.Inspring,childrenusewindtoflytheirkites.Peoplealsousewindtoproducepower.Now,therearemanycountriesbuildingwindpowerstations.

S2:

Sunlightcanproducealotofenergy.…

S3:

Wavescanproducealotofenergy…

S4:

…

CompleteGrammarandFunctions

S1:

Ok.And,while,or,but.

Ss:

Yes.

S2:

Greener,shutoff,easier,louder,reach.

Ss:

Yes.

Sumupthecompoundsentencesandexpressionsofgivingsuggestions.

S1:

and,but,while,or

S2:

however,so

S3:

notonly…butalso,afterall

S4:

for,since,as

S5:

besides,what’smore,what’sworse

S6:

should,shouldn’t,must…

S7:

hadbetter,hadbetternot,don’t…

S8:

oughtto…

2

Pre-reading

（10mins）

Classactivity

Step1:

PresentashortvideoabouttheAmazonrainforeststolearnsomenewwordsandleadto1a.

T:

WhatdopeoplecalltheAmazonrainforests?

T:

Yes.Doyouknowwhypeoplecallitlikethis?

T:

Soitdoes.Itremovescarbondioxideandmakesoxygen.Doyouwanttolivethere?

T:

No?

Why?

T:

Whatyousaidisright.Therearemanykindsofinsectsthere.Iftheybiteyou,youmayloseyourlife.

Step2:

Presentanothershortvideoaboutthedestructionoftherainforeststoleadtothenecessityofplantingtrees.

T:

Whathaveyouseen?

T:

Yes,inordertogetmoneyorfarmland,peoplecutdownthetreesintherainforests.Asaresult,theworldclimatemaychangeandmanybirdsandanimalsmaybeindanger.Luckily,manypeoplehavetakenmeasurestodosomething.Thevolunteerplantersaroundtheworldareplantingnewtreestoreplacedestroyedarea.

Learnsomenewwordsandleadto1a

Ss:

地球之肺。

Ss:

因为它吸收了大量的二氧化碳并释放氧气。

Ss:

No.

S1:

太潮湿了。

S2:

有各种各样的有毒生物。

如：

蛇，蜘蛛等等。

Learnaboutthedestructionoftherainforeststoleadtothenecessityofplantingtrees.

Ss:

大量的雨林被毁掉了。

最好是播放一小段亚马孙热带雨林的视频，图片没有震撼力。

3

While-reading

（6mins）

Individualwork

LettheSsread1aandanswerthequestionsonpage50.

T:

Haveyoueverplantedtreesinthemountains?

T:

Nowjustimaginewhatproblemsyoumayhaveifyouareoneoftheplanters.

T:

Ifyouwanttoknowwhatdifficultiesthevolunteershavetoface,thenreadthepassage.Butbef