SectionC.Materialanalysis本課是第二單元第二話題的第三課時，主活動是1a和3。經(jīng)過閱讀1a，進一步學(xué)習(xí)各樣污染對地球造成的危害和造成這些污染的原由，培育學(xué)生經(jīng)過圖片展望文章粗心的能力，此中出現(xiàn)了好多對于環(huán)境的專業(yè)術(shù)語，需要學(xué)生認(rèn)識。1b是訓(xùn)練學(xué)生運用不一樣的閱讀策略達成不一樣的任務(wù)，如：經(jīng)過察看1a中的圖片般配相應(yīng)的標(biāo)題，再閱讀文章，給每段話選擇標(biāo)題；此外，持續(xù)訓(xùn)練學(xué)生經(jīng)過語境，找出單詞指代的內(nèi)容；最后在理解課文的前提下，概括文章的粗心。1c培育學(xué)生經(jīng)過精讀文章，學(xué)會用簡單的詞句做筆錄，再通過1c表格中的內(nèi)容簡要復(fù)述文章粗心。2是培育學(xué)生的資源策略。要修業(yè)生合理地運用網(wǎng)絡(luò)資源查找與環(huán)境危害有關(guān)的信息，而后進行小組議論，并要修業(yè)生做好筆錄，為任務(wù)3做準(zhǔn)備。3要修業(yè)生運用這些信息，在1c和2的基礎(chǔ)之長進行寫作練習(xí)，教師應(yīng)重申連接詞在作文中的重要性。因為講堂上不方便達成2，所以，可將2和3安排為課后作業(yè)。經(jīng)過讀寫的聯(lián)合訓(xùn)練，指引學(xué)生關(guān)注全世界環(huán)境的現(xiàn)狀，意識到環(huán)境保護的重要性，建立正確的環(huán)保觀點。Ⅱ.Teachingaims1.Knowledgeaims：掌握本課的要點詞匯和短語，初步感知定語從句。進一步學(xué)習(xí)各樣污染對地球造成的危害和造成這些污染的原由。2.Skillaims:能讀懂有關(guān)環(huán)境問題的文章。能依據(jù)不一樣的閱讀目的，運用簡單的閱讀策略獲守信息。能正確運用網(wǎng)絡(luò)資源獲取需要的信息。能用英語書面的形式表達環(huán)境問題的成因及危害。3.Emotionalaims:(optional)經(jīng)過學(xué)習(xí)，認(rèn)識環(huán)境現(xiàn)狀，幫助學(xué)生建立綠色環(huán)保意識。4.Cultureawareness:(optional)認(rèn)識各樣環(huán)境問題，如臭氧空洞，溫室效應(yīng)等，意識到環(huán)境問題的嚴(yán)重局勢。.Thekeypointsanddifficultpoints1.Keypoints:Wordsandphrases:hole,form,rise,oxygen,ozonelayer,radiation,directly,carbondioxide,blanket,escape,thegreenhouseeffect,referduringthisperiod,takeaway,passthroughSentences:(1)Forestshavebecomedeserts,somoreandmoresortsofanimalsandplantsaredisappearing.Asaresult,manyriversandlakesarenowdead.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.Whenitrainsorwhenthewindblows,theearthistakenaway.(6)Theheatfromthesuncan’,sotescapethetemperatureisrising.Grammar:indefinitepronounandadverbDifficultpoints：理解有關(guān)環(huán)境方面的專業(yè)術(shù)語。能讀懂與環(huán)境問題有關(guān)的科普類文章。能運用所學(xué)知識，寫出討論環(huán)境現(xiàn)狀的文章。.Learningstrategies能在閱讀不一樣體裁的資料時，運用不一樣的閱讀策略獲守信息。擅長利用插圖展望科普類文章的內(nèi)容。能合理運用網(wǎng)絡(luò)資源，拓展寫作思路和開辟視線。適合使用連結(jié)詞，使自己的作文流利，有邏輯層次。.Teachingaids與環(huán)境有關(guān)的圖片；單詞卡片（如O2/oxygen;ozonelayer;radiation等）；錄音機；國際臭氧層保護日宣傳動畫片等。.TeachingproceduresStageInteractionTeacheractivityStudentactivityRemarks(timeperiod)patternsChecktheSs’homework:Giveareportaboutyourownbad用報告的形式讓學(xué)生在課LettheSsgiveareportabouttheirownbadhabitsandhowtomakethecampus堂上反省自己平常的言habitsandhowtomakethecampusbetter.lookbetter.行，有助于學(xué)生更好提高Hi,everyone.Lastclass,wehavetalkedsomethingabouttheschoolenvironment.Someofusmayhavesomebadhabits,andthesehabitscanaffectourcampus.Whatcanyoudotomakeourcampuslookbetter?GettingPleaseshareyouropinionswithus.studentsreadyS1:IoftenforgettoturnoffthelightswhenIS1:IoftenforgettoturnofftheClass1forlearningleavetheclassroom.Ithinkitdoesn’matteractivityandrevisionifthelightsareonforalittlewhile.AndIthinkitdoesn’matterifthelights（2mins）oftenwastesomepaperafterIonlyuseaareonforalittlewhile.AndIoftenwastesomepaperafterIuseonlyanowIrealizethesehabitsarereallybadsmallpartofit.Iliketousenewones,soIhopeeveryoneofuscansavepaper.Ihopeeveryoneofuscanenergyfromnowon.saveenergyfromnowon.T:Verygood.Ifyoucangivemoresuggestions,itwillbebetter.Nextone.S2:IalwaysmakeloudnoisebetweenS2:Ialwaysmakeloudnoise

自己，培育“愛惜環(huán)境從我做起，從小事做起”的意識。betweenclasses.Itdisturbsothers.rubbisharoundinacornerifthereisIoftenthrowrubbisharoundinanobody.Butfromnowon,Iwillremembercornerifthereisnobody.Butfromtogetridofthebadhabits.Ifeveryonecannowon,Iwillremembertogetridfollowtheschoolrules,ourcampuswillofthebadhabits.Ifeveryonecanbecomemorebeautiful.followtheschoolrules,ourcampuswillbecomemorebeautiful.S:S:33T:Great.PlaythecartoonvideoaboutprotectingtheWatchthevideoanddiscusswhat經(jīng)過播放視頻，讓學(xué)生了ozonelayer.LettheSswatchanddiscusstheyhavelearntfromit.Takesome解每年的9月16日是國際whattheyhavelearntfromit.Takesomenotes.臭氧層保護日，關(guān)注臭氧notesifnecessary.層的現(xiàn)狀。Lead-inT:Hereisavideoaboutprotectingthe該宣傳片是卡通版，不是Class2ozonelayer.Lets’watchitcarefully.ThenI乏味的科教片，能夠很好(3mins)activitywillaskyousomethingaboutit.地吸引學(xué)生的注意力。如...果條件不一樣意，教師能夠T:NowLets’figureoutsomethingabout從課外書本上選讀一些與ozonelayer.Isozonelayerimportantor環(huán)境有關(guān)的文章。unimportant?Ss:Itsvery’importantCantheozonelayerprotectus?Ss:Yes.Whathappenedtoitnow?Ss:Thereisabigholeintheozonelayer.Yes.Whatsthe’effectofit?Ss:Its’harmfultoallthelivingthings,especiallytohumansforitdoesharmtooureyesandskin.

Ss:Itsvery’importantSs:Yes.Ss:Thereisabigholeintheozonelayer.Ss:Its’harmfultoallthelivingthings,especiallytohumansforitdoesharmtooureyesandskin.ClassStep1:ShowtwopicturesofozonelayerLookatthepicturesandlearnthe在觀看宣傳片后，再介紹activityandmorecarbondioxide.Introducethemtonewwordsaccordingtoteacher’有s關(guān)臭氧層和溫室效應(yīng)的theSsbrieflytoteachthenewwords.descriptions.英文詞匯，學(xué)生簡單理解，T:Right.Ozoneisaspecialkindofoxygen.也簡單掌握。Pre-readingItcanprotecttheearth.Nowpeople3producelotsofharmfulchemicalsintothe(5mins)air.Theycauseabigholeintheozonelayer.Sotheradiationcanpassthroughtheholeandreachtheearthdirectly.(ShowthepictureofmorecarbondioxideandleadtheSstolearnthenewwordsinthesameway.)ClassStep2:GuidetheSstopredictthemainideaPredictthemainideaofthe培育學(xué)生經(jīng)過察看圖片，activityofthepassagebythegivenpictures.passagebythegivenpictures.展望課文內(nèi)容的能力，這T:NowlookatthepicturesonPage39,can有助于學(xué)生在平常閱讀youguesswhatwewilllearninthepassage.中，迅速獲守信息。S1:Somethingaboutpollution.S1:Somethingaboutpollution.S2:Trafficpollution/airpollutionS2:TrafficpollutionS3:OzonelayerS3:OzonelayerS4:CuttingdowntreesS4:CuttingdowntreesS5:CarbondioxideS5:CarbondioxideIndividualStep1:LettheSsmatchthepictureswithworkthetitlesin1of1b,andthenreadWhile-readingparagraphs2-6quicklyandwritedownthepropertitleinfrontofeachparagraph.4(20mins)T:Excellent.Nowread1aquickly,matchthepictureswiththetitlesinExercise1quickly.

Matchthepictureswiththetitlesin1of1b,andthenreadparagraphs2-6quicklyandwritedownthetitleinfrontofeachparagraph.

教師在安排1b的閱讀任務(wù)時，要注意以下兩點：1.指引學(xué)生用不一樣的閱讀策略達成不一樣的閱讀任務(wù)。2.任務(wù)的安排要有層次性，從易到難。S1:Picture1istrafficpollution.S2:Picture2istheozonelayer.S3:Picture3isfewertrees.S4:Picture4ismorecarbondioxide.S5:Picture5isfactorypollution.

S1:Picture1istrafficpollution..S2:Picture2istheozonelayer.S3:Picture3isfewertrees.S4:Picture4ismorecarbondioxide.S5:Picture5isfactorypollution.T:Right.Nowpleasereadparagraphs2-6quickly,chooseatitleforeachparaandwritedowninfrontofit.T:OK,letscheck’theanswertogether.S6:Para2isfewertrees.S7:Para3istrafficpollution.S8:Para4isfactorypollution.S9:Para5istheozonelayer.S10:Para6ismorecarbondioxide.IndividualStep2:LeadtheSstoreadparagraph1,5workand6,findthewordsinExercise2,3and4andguessthemeaningsofthemaccording

S6:Para2isfewertrees.S7:Para3istrafficpollution.S8:Para4isfactorypollution.S9:Para5istheozonelayer.S10:Para6ismorecarbondioxide.Readparagraph1,5and6,findthewordsinExercise2,3and4andguessthemeaningsofthem

訓(xùn)練學(xué)生經(jīng)過上下文猜想單詞指代的內(nèi)容，有助于tothecontent.accordingtothecontent.Great.Nowreadparagraph1,5and6,findthewordsinExercise2,3and4andguessthemeaningsofthemaccordingtothecontent.Whatdoes“ourplanet”meaninthispara?

學(xué)生更好的理解課文。該環(huán)節(jié)的三個小任務(wù)是用相同的方法獲取信息，所以，能夠一次性達成。S1:Itmeans“theearth”.S1:Itmeans“theearth”.T:Whatdoestheword“blanket”referto?S2:Carbondioxidearoundtheearth.S2:Carbondioxidearoundtheearth.T:Whatdoestheword“it”inPara5referto?S3:Itrefersto3”.“OS3:Itrefersto3”.“OGroupworkStep3:LettheSsread1acarefully,chooseRead1acarefully,choosethebestthebesttitleforthepassageandfinish5intitleforthepassageandfinish5in概括文章中心思想，是學(xué)1b.Thencompletethenotesin1caccording1b.Thencompletethenotesin1c生較為頭疼的題目，所以，to1a.accordingto1a.假如文章較長的話，最好T:Pleasereadthepassageandchoosethe把它放到最后一個環(huán)節(jié)處besttitleforthepassage.OK.Haveyougotthemainideaofthepassage?S4:Yes.Environmentalproblems.S4:Yes.Environmentalproblems.candiscusswithyourgroupmembers.OK.Haveyoufinished?Whatsthe’effectoftrafficpollution?S5:Peoplehavehealthproblem.S5:Peoplehavehealthproblem.T:Whats’theeffectoffactorypollution?S6:FactoriesmaketheriverandlakesS6:Factoriesmaketheriveranddead.lakesdead.S7:

理，降低難度，教師要指引學(xué)生用清除法作出正確的選擇。T:Thats’right.Youdidverywell.5Post-readingIndividualStep1:LettheSsread1acarefully,findoutRead1acarefully,findoutthe本環(huán)節(jié)詳細(xì)操作說明：(12mins)work,thedifficultpoints,andlistthemontheBb.GroupworkT:Read1aagainandfindoutthedifficultandclasspoints.PleasecollectthemingroupsandactivitylistthemonyoursmallBb.

difficultpoints,andlisttheminthe1.學(xué)生在組內(nèi)概括好本組smallBb.存在的問題。2.教師隨意選擇一組作為主講，在解說過程中，仍然按照先讓學(xué)生解答、教T:OK,nowlookatthepointsofGroupOne師增補的原則。ontheBb.Lookatthisone“Whatdoesthe3.再增補解說其余組剩下word“others”referto?Whocan”dealwith的問題，同樣的問題不作it?重復(fù)解說。S1:Somethingwehavedone.S1:Somethingwehavedone.4.最后老師將要點板書到T:OK,lookatthissentence“theearthis黑板上。takenaway”.Whocantranslateit?S2:Itmeans泥土“被帶走了”inChinese.S2:Itmeans“泥土被帶走了”inChinese.(TheSsneedtotakenoteswhiletheteacherisgivingsomeexplanations.)PairworkStep2:GuidetheSstoretellthepassageWorkinpairs,trytoretelltheaccordingtothefirstpara,lastparaandthepassageaccordingtothefirstpara,notesin1c.lastparaandthenotesin1c.Nowworkinpairs.Trytoretellthepassageaccordingtothefirstpara,lastparaandthenotesin1c.T:Nowwhocanhaveatry?S1:Sincehumanslivedontheearth,weS1:Sincehumanslivedonthechangedtheearthalot.Somethingisgoodearth,wechangedtheearthalot.whilesomethingisbad.TherearefewerSomethingisgoodwhilesomethingtreesintheworld.Peoplecutdownthem,soisbad.Therearefewertreesintheforestsbecomedesertsandanimalsandworld.Peoplecutthemdown,soplantsaredisappearingforestsbecomedesertsandanimalsandplantsaredisappearingS2S2ClassStep1:LettheSssummarizewhattheySummarizingactivityhavelearnedinclass.andassigningT:Now,letsgo’overwhatyouhavelearned6today,includingwords,phrasesandhomework(3mins)sentences.Andeachstudenthastopresentone.

Goovertogetherandspeakoutwhattheyhavelearnedtoday.

因為網(wǎng)絡(luò)資源的覆蓋面有限，在講堂上運用互聯(lián)網(wǎng)查找信息解決問題，很難實現(xiàn)，所以，該任務(wù)只好作為課后作業(yè)辦理。在很多鄉(xiāng)村校校，可能課后都S1:oxygenS1:oxygen不可以達成該任務(wù)，那就需S2:radiationS2:radiation要老師供給有關(guān)的課外讀S3:carbondioxideS3:carbondioxide物來幫助學(xué)生。Step2:HMK:LettheSssearchtheInternetSearchtheInternetformoreformoreinformatio