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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,thensa

ysomethingaboutit.T:WhatdoyouknowabouttheEarth?S1:TheEarthisround.S2:Thereareanimals,peopleandplantsontheEarth.S3:Therei

salotofwaterontheEarth.…（Showthetitle:TheEarth.）Ⅱ.While-taskprocedures1.Show:Listenandsay，learnthewordsocean,forest,landand

thesentenceThe…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:Whatare

thegreenandbrownparts?Play:forestS1:They’reforestsandland.Ss:Thegreenpartsareforests.Ss:Thebrownpartsareland.2.PlaythetapeinLis

tenandsay,letSsread.3.ReadListenandsay,thenanswerthequestions.T:What’swrongwiththeEarthnow?S1：TheEarthwascleanandbeauti

ful,butnowsomepartsaredirty.3.Freetalk：T:Yesterday,wetalkedaboutsomeproblemsonetheEarth.WhatshouldwedoprotecttheEarth?T:asyoumentionedjustno

w,theEarthwascleanbutnowsomepartsaredirty.whatmakestheEarthdirty?WhydoestheEarthgetsick?Intoday’sclass,wearegoingtofindoutmore.Beforereadingthepass

age,doyouknowwhytheEarthisgettingsick?4.Playthevideo.T:WhydoestheEarthgetsick?T:WhyelsedoestheEarthgetsick?T:Th

eEarthgetssick,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:WhatdopeopledotokeeptheEarthcleanandhealthy?T:Let’stalkabouthowcanwesavetheEarth?4.Pairwork，let

SsfindhowtopretecttheEarth.S1：Weshouldstopthrowingrubbishintorivers.S2:Weshouldstopcuttingdownsomanytrees.S3:We

shouldstopusingPlasticbags.Ⅲ.Post-taskactivities1.Groupwork..Actthedialogue.2.Writeandintroduceingroups.T:ThisisourEarth.It’sround.The

bluepartsaretheoceans.Thegreenpartsaretheforestandthebrownpartsareland.TheEarthwascleanandbeautifulinthepast,butnowsomepartsaredirty.Wesh

ouldstopthrowingrubbishintorivers.Weshouldstopcuttingdownsomanytrees.Weshouldstopusingplasticbags.WeshouldprotectourEarth.Wesho

uldkeepitcleanandbeautiful.Ⅳ.Homework1.ListenandreadStudent’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：Unit12TheEarthThebluepartsareoceans.Thegreenpartsareforests.Thebrownpartsareland.Thewhitepartsareclouds.4TheEarthw

as„and„inthepast,butnowsomeparts„Weshouldstop„