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九年级上Unit2SavingtheEarthTopic1PollutionhascausedtoomanyproblemsSectionA教学设计一．Teachingaims:(一)Languageaims1.Words

:bee,butterfly,mess,shame,several,pour,waste,destroy,pollute,goodness.2.Somephrases:seesb.doingsth.pour….into3.So

mesentences:Thereareseveralchemicalfactoriespouringwastewaterintothestream.Oh,whatsmess!4.LearnthedifferencesbetweenSimplePastandPresen

tPerfect(二)Abilityaims1.Thestudentscananswerthequestionsafterlistening2.Thestudentscantalkabouttheenviron

mentusingthegoallanguage.3.Thestudentscangettheusefulinformationbycooperation.(三)Emotionaims:Letthestudentsknowtheharm

ofpollution.Encouragethemtoprotecttheenvironment.二．LearningStrategic:Learningbyoneself,Learningincooperation二．Teachin

gproceduresStep1:Leading-inT:Wherehaveyoubeenduringyourholidays?S:Ihavebeento…Step2:LearnthenewwordsT:(Showsomepictures)Letmetellyousomethingaboutmys

elf,IhavetobeentoShanghai,IhavebeentoHangzhou,Ihavebeentomanyplacesofinterest.butIloveHangjinhouqibest,becauseit’sourhometown

.ThenshowYuanZiRiverinourhometown,Introducethechangesaboutit.Learnthenewwords:bee,butterfly,mess,shame.Several,,pour,waste.Step

3:1aT:Haveyoueverhadapicnic?S:Yes,Ihave.T:Kangkang,Jane,MariaandMichaelareplanningapicnicforSunday.Theywillgotothe

WestHill.Listenandanswer:(Thefirstlistening)1.WastheWestHillbeautifultwoyearsago?2.Haseverythingchanged?1b.(Thesecondlistening)Afterthe

studentsanswerthetwosimplequestions.Listento1aandmarkthewordswithP(Past)orN(Now)1c.Read1aandcompletethesen

tencesinthetable.Step4:Givethestudentsthreeminutes.Checkthepreviewpartsinthelearningproject.Andfindouttheimport

antphrasesin1aandunderlinetheminthebooks.Step5:CooperateandStudy1.Theflowersandgrasshavegone.译：_______________________

_____________go在此处为不及物动词，意为______________.2.Youcouldseebeesandbutterfliesdancing.译：_____________________________

_______Seesb.doingsth.表示______________________.Seesb.dosth.表示______________________.针对性练习：3.Look!Thereareseveralchemicalf

actoriespouringwastewaterintothestream.译：____________________________________3.Therebesb\sth.doingsth表示_________________

________________.针对性练习：Step6:Listenandrepeat1a.Thenstudentspracticeinpairs.Atlast,Callthreegroupstoactito

ut.Step7:2Workinpairs.Lookatthepictureandmakeupconversationssimilartotheexamplewithyourpartner.Afterit,summarizethedifferencesbetweenSimple

PastandPresentPerfect.现在完成时态表示______发生或已经完成的动作对______造成的影响或结果，强调的时现在的情况。________(能\不能)与表示过去的某一时间的时间状语连用。而一般过去时只表示_______的动作或状态。和现在不发生联系。

强调的是过去的情况。针对性练习：Step8:Listening.A:Listentothesentencesandnumberthepictures.B:ListenagainandcompletethesentencesStep9:Project美丽的草原我的家，风吹绿草遍地花，彩蝶纷飞百鸟唱

，骏马好似彩云朵…..这是一首耳熟能详的歌唱我们家乡的歌，但是近年来由于过度放牧，追求经济利益，我们的家园正在受到破坏。请以Beautifulgrassland,myhome为题准备一篇口头作文，小组讨论要点。选出

一名学生展示你们的作文。Youcanbeginlikethis:Ilovemyhometown.Itwasabeautifulplacetenyearsago,Therewere,Theairwas…

andthewater…Youcouldsee…butnoweverythinghaschanged…The…havegone…Thewateris…Whatashame!Weshouldvalueou

rhome.Let’stryourbesttoprotectourhometownStep10.ExerciseStep.11:SummaryStep12:HomeworkRead1aafterclass.Writeashortpassage;Beautifulgra

ssland,myhomeStep13:BlackboarddesignUnit2.SavingtheearthTopic1.PollutionhascausedtoomanyproblemsSectionAwords:bee,butterf

ly,mess,shame.Several,,pour,waste.Phrase:Seesb.doingsth.Seesb.dosth.Pour…intoTherebesb.doingsth.Grammar:ThedifferencesbetweenS

implePastandPresen