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1课题：M4U12TheEarth（课时一）ListenandsayLookandlearn教学目标：1、帮助学生学习本单元的核心单词Earth,forest,ocean,land,part,rubbish

,somany。2、能听说读写句型：Weshouldstopcuttingdownsomanytrees.3、通过Listenandsay引入并教学Lookandlearn的生词，结合核心单词，帮助学生介绍地球概貌。4、通过反馈练习，引导学生初步运用核心句型，针

对保护地球的环保行动展开讨论。教学重点：词汇：Earth,forest,ocean,land,part,rubbish,somany句型：Weshouldstopcuttingdownsomanytrees.教学难点：掌握本课时的核心词汇和句型。课前准备：教科书、磁带、录

音机、多媒体课时安排：共3课时教学过程Ⅰ.Pre-taskpreparations1.Playthevideo.2.Freetalk.LetSsfindtheEarth,thensaysomethingab

outit.T:WhatdoyouknowabouttheEarth?S1:TheEarthisround.S2:Thereareanimals,peopleandplantsontheEarth.S3:Thereisalotofwateronth

eEarth.…（Showthetitle:TheEarth.）Ⅱ.While-taskprocedures1.Show:Listenandsay，learnthewordsocean,forest,landandthesentenceThe…partsare….设计意图：(设计意

图：创设英语氛围,引出本课话题“TheEarth”。)(设计意图：Freetalk的讨论为本课话题储备词汇量。)2T:LookattheEarth,therearemanydifferentpartsontheEarth.Tellmewhattheyare.1

）T:Whataretheblueparts?Play:oceanS1:They’reoceans.Ss:Thebluepartsareoceans.2）T:Whatarethegreenandbrownparts?Play:forestS1:They’refores

tsandland.Ss:Thegreenpartsareforests.Ss:Thebrownpartsareland.2.PlaythetapeinListenandsay,letSsread.3.ReadListenandsay,thenanswerthequestions.T

:What’swrongwiththeEarthnow?S1：TheEarthwascleanandbeautiful,butnowsomepartsaredirty.3.Freetalk：T:Yesterday,wetalkedaboutsomeproblemsonetheEarth.Whats

houldwedoprotecttheEarth?T:asyoumentionedjustnow,theEarthwascleanbutnowsomepartsaredirty.whatmakestheEarthdirty?WhydoestheEarthgets

ick?Intoday’sclass,wearegoingtofindoutmore.Beforereadingthepassage,doyouknowwhytheEarthisgettingsick?4.Playthevi

deo.T:WhydoestheEarthgetsick?T:WhyelsedoestheEarthgetsick?T:TheEarthgetssick,nowhowcanwesavetheEarth,Whatcanwedo?(

设计意图：学习新单词和句型，为对话阅读扫除障碍。)(设计意图：听，读，初步感知课文。)(设计意图：通过回答引出污染话题。)（设计意图：在上节课的基础上，对于TheEarth进行进一步的深入了解和谈论。）3T:WhatdopeopledotokeeptheEarthcleanandhealth

y?T:Let’stalkabouthowcanwesavetheEarth?4.Pairwork，letSsfindhowtopretecttheEarth.S1：Weshouldstopthrowingrubbishintorivers.S2:Weshouldstopcuttingdowns

omanytrees.S3:WeshouldstopusingPlasticbags.Ⅲ.Post-taskactivities1.Groupwork..Actthedialogue.2.Writean

dintroduceingroups.T:ThisisourEarth.It’sround.Thebluepartsaretheoceans.Thegreenpartsaretheforestandth

ebrownpartsareland.TheEarthwascleanandbeautifulinthepast,butnowsomepartsaredirty.Weshouldstopthrowingrubbishintorivers.Weshouldstopcuttingdown

somanytrees.Weshouldstopusingplasticbags.WeshouldprotectourEarth.Weshouldkeepitcleanandbeautiful.Ⅳ.Homework1.List

enandreadStudent’sBookpages80-81.2.SearchformoreinformationabouthowtoprotecttheEarth.(设计意图：巩固核心句型。)(设计意图：表演对话，培养学生语感。)(设计意图：文本拓展。)板书设计：Unit12TheEarth

Thebluepartsareoceans.Thegreenpartsareforests.Thebrownpartsareland.Thewhitepartsareclouds.4TheEarthwas„and„inthepast,butnowsomeparts„Weshoul

dstop„