福建省泉州市安溪县九年级英语上册 Unit 2 Saving the earth Topic 2 All these problems are very serious Section C教案 （新版）仁爱版-（新版）仁爱版初中九年级上册英语教案VIP免费

Topic2AlltheseproblemsareveryseriousSectionCTeachingaimsanddemands1.Wordsandphrases:hole,form,rise,oxygen,ozonelayer,radiation,directly,carbondioxide,blanket,escape,thegreenhouseeffect,referto,duringthisperiod,takeaway,passthrough2.Sentences:(1)Forestshavebecomedeserts,somoreandmoresortsofanimalsandplantsaredisappearing.(2)Asaresult,manyriversandlakesarenowdead.(3)Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.(4)Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.(5)Whenitrainsorwhenthewindblows,theearthistakenaway.(6)Theheatfromthesuncan’tescape,sothetemperatureisrising.3.Grammar:indefinitepronounandadverbTeachingprocedures:Step1Gettingstudentsreadyforlearningandreview1ChecktheSs’homework:2LettheSsgiveareportabouttheirownbadhabitsandhowtomakethecampusbetter.Step2Lead-inPlaythecartoonvideoaboutprotectingtheozonelayer.LettheSswatchanddiscusswhattheyhavelearntfromit.Takesomenotes.Step3Pre-reading1Showtwopicturesofozonelayerandmorecarbondioxide.IntroducethemtotheSsbrieflytoteachthenewwords.2GuidetheSstopredictthemainideaofthepassagebythegivenpictures.Step4While-reading1LettheSsmatchthepictureswiththetitlesin1of1b,andthenreadparagraphs2-6quicklyandwritedownthepropertitleinfrontofeachparagraph.2LeadtheSstoreadparagraph1,5and6,findthewordsinExercise2,3and4andguessthemeaningsofthemaccordingtothecontent.3LettheSsread1acarefully,choosethebesttitleforthepassageandfinish5in1b.Thencompletethenotesin1caccordingto1a.Step5Post-reading1LettheSsread1acarefully,findoutthedifficultpoints,andlistthemontheBb.2GuidetheSstoretellthepassageaccordingtothefirstparagraph,lastparagraphandthenotesin1c.Step6SummarizingandAssigninghomework1LettheSssummarizewhattheyhavelearnedinclass.2HMK:LettheSssearchtheInternetformoreinformationaboutenvironmentalproblemsandeffects.Discusstheinformationingroupsandtakenotes.Thenwriteapassageaccordingtotheirnotesand1c.BlackboarddesignAlltheseproblemsareveryserious.SectionCKeywordsandphrases:hole,form,rise,oxygen,ozonelayer,referto,radiation,takeaway,Sentences:(1)Forestshavebecomedeserts,somoreandmoresortsofanimalsandplantsaredisappearing.(2)Asaresult,manyriversandlakesarenowdead.(3)Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearth.(4)Itcausestheleveloftheoceanstoriseandthecarbondioxide,blanket,escape,duringthisperiod,passthrough,thegreenhouseeffectclimateoftheearthtochange.(5)Whenitrainsorwhenthewindblows,theearthistakenaway.(6)Theheatfromthesuncan’tescapesothetemperatureisrising.