上海版牛津初中英语课件8A Chapter 6.ppt

oxfordenglish 8achapter6 oxford8achaptersix 课时安排 8 9课时 reading listening 4课时language 2课时writing 1课时speaking usingenglish morepractice 1 2课时 period1 teachingtargets 1 todevelopstudents abilitiesofpredicting speakingandlistening 2 toletstudentsrealizetheimportanceoftreesintheirlife problemstosolve 1 pre reading a p78 2 listening p81 whataretheproblemsinthefollowingpictures theenvironmentispolluted whataretheproblemsinthefollowingpictures pollution airpollution waterpollution noisepollution makingthingsdirtyandunhealthy p78 a 2 pollutionfighters treesarepollutionfighters howtosolvetheproblems whatdoyouknowabouttrees whatgoodaretrees e g green cool somespecialtrees table furniture summer tree plantingday 12march forest oxygen step2 discussion whatcanwegetfromtrees eat drink use p78 a 3 rubber oil chopsticks cotton pencil tea table book nuts beans fruit treesareveryuseful judy sschooltookpartinatree plantingcampaign toattractpeopletojoin judyandritawroteanotice listentothemtalking andcompletethenotice comeandhelpustoplantsometrees eightreasonsforhelpingtoplanttrees 1treesmakestreetsmore 2treesmakestreetsless 3treesmakeourair 4treesmakeourair 5treesmake tokeepusaliveand 6treesprovideuswith thingslike and 7treeshelpustofight 8treesarein step3 listening beautiful noisy purer cooler oxygen healthy useful fruit paper pollution danger fromlistening weknowthattreescanhelpustofightpollution airpollutionwaterpollutionnoisepollution treesaresoimportant doyouthinktreesliveshorterthanpeopleandanimals p78 a 1 howlongdotreeslive 150years 4000years 3years mice people whales tortoises trees 70years 40years doyouthinktreescanreallylivefor400years whathappenstotreesnow ifthere renotrees whatwillourearthbelike whatwillourearthbelikeifthere renotrees whatshouldwedotoprotectourearth period2 3 teachingtargets totraintheclassreadingskillsandgoodhabitsonreading problemstosolve exercisesb dande airpollution waterpollution noisepollution teachingprocedure step1 pollutionfighters readthetitle subtitle pictures thefirstparagraphandthelastparagraph thefirstsentenceandthelastsentenceofeachparagraph step2 skimming p78 b lookandthink title pollutionfighterssubtitle judyiscollectingsomefactsforaclassprojectonpollution sheisinterviewingdoctorray ascientist abouttrees pictures trueorfalse 1 thepollutionfightersareprobablyscientists 2 afewusefulproductscomefromtrees 3 treesproduceharmfulgases 4 treescanpassinformationtooneanother f f f t payattentiontothesentencesbeginningwithwh orhow step3 scanning 1 whyisdoctorraysointerestedintrees 2 whatgoodaretrees 3 whatelsecantreesdo 4 alotofthingscomefromtrees pleasegivesomeexamples 5 whatarenaturalairconditioners why 6 howmanystudentsarethereinjudy sclass 7 howmanytreescouldproduceenoughoxygentokeep46peoplealiveandhealthyforayear 8 whatcantreesdototheair 9 howmanytreescandothejobof5airconditionersrunningalmostallday 10 whyaretreesingreatdanger step4 readingfordetails payattentiontosuchwords but when while so 1 lookatthequestionsbelowthethreepicturesandfindtheanswersfromtheinterview 2 what stherelationshipbetweentreesandairconditioners 3 whatdothetwotreesdo 1 whoarethey thegirlisjudy thewomanisdrray threetreescandothejobof15airco nditionersrunningalmostallday theyjointheirrootstogether 2 fillintheblanks judy youcertainlyknowalotabouttrees doctorray drray thankyou judy idon t really scientistsareonlynow tounderstandthem forexample didyouknowthat insectsattackatree itcan itsneighbours thetreescanthenprotectthemselvesby a thatmakestheirleavestaste andsometreescanjointheirroots underground andpassfoodandwateraround treesare withoneanother butwedon tknow judy aretreesin drray ingreatdanger wecutdownandburn everyyearbutwereplace anyofthem weare ourbest againstpollution but beginning warn chemical nasty how danger hardly together millions producing communicating fighters destroying when 3 doexercisedonp80 d findthefacts correctjudy smistakes trees 1 livemuchlongerthanpeople t 2 producewood rubber paper nuts beansandfruit t takeoxygenfrom theair f heat theair f 5 arelikeairconditioners t cannot protectthemselvesagainstinsects f 7 cansharefoodandwaterwithoneanother t 8 areindanger mainlyfrom insects f 3 releaseoxygeninto 4 cool 6 can people human r wegetsomeusefulthingsfromtrees don twe m twoexamplesare 2 r isittruethattreesdotwomainthingstotheair m they 3 r i veheardthatonetreehasthepowerof15airconditioners isthatright m onetreehasthepowerof yes coolitandcleanit fiveairconditioners yes no woodandrubber 4 doexerciseeonp81 4 r scientistsknowalotabouttrees don tthey m theyare no onlynowbeginningtounderstandthem 5 r cantreesreallycommunicatewithoneanother m forexamples ifinsects 6 r andcantheyreallyprotectthemselvesfrominsects m theycanproduce 7 r cantreeshelponeanother m forexample theycan 8 r isittruethat everyyear therearefewerandfewertreesintheworld m thereasonisthatpeople yes attackatree itcanwarnitsneighbours yes achemicalthatmakestheirleavestastenasty yes jointheirrootstogetherundergroundandpassfoodandwaterground yes cutdownmillionsoftrees butreplacehardlyanyofthem readaloud payattentiontothepronunciationandintonationofeachsentence 一 importantwords live活生生的人 物只做定语liveanimals teacheralivedead指人还活着的 状态 表语形容词he salive living没死或没消失 人 物定语或表语alivingplant2 pollutepollutionair water food noise 3 else置于不定代词或疑问代词后 修饰前边词语whatelse whoelse somethingelseother置于名词前 修饰名词 what otherthings 4 warn警告warnsb of aboutsth warnsb nottodosth warnsb againststh 提防 warnsb that clause5 replace代替with bysth 二 oldphrases efrom befrom2 beknownas作为 而出名befamousfor aswell knownbest known3 pass on to treescanpassinformationtooneanother 4 oneanother 3eachother 25 beinterestedin surprise amaze excite iaminterestedintheinterestingbook 6 onearthontheearth7 ontheendof8 naturalairconditioners9 join together10 indanger introuble 三 newphrases 1 averageages2 take from release from into 3 aswellas连接两个并列成分 既 又 treescooltheairaswellascleanit heknowsenglishaswellasgerman tomcansingaswellasdance 4 protectsb bydoingsth 通过fromthesunshine免受来自于 的伤害againstattacks免受袭击 municatewith 与 相通 联系 交流communicatesth to 传送传达6 hardlyanyofthem almostnoneofthemhardly almostnot几乎不thereishardlyanycoalleft theyfeelverycold 7 providesb withsth providesthforsb 8 makeamistake mistakes9 muchlongermuch alittle abit far even程度副词常用来修饰形容词或副词的比较级 表示 得多 四 sentences whatgoodaretrees good benefits好处利益2 makestreetsbeautifulandlessnoisy make使役动词 adj n 分词 作宾补 don tmakehimangry wemakehimourheadmaster whathesaidmakesusverypleased keep保持 adj 分词 介短 作宾补 keepyourwholeclassaliveandhealthy 3 isupposeyoualsoenjoybreathingpure coolair suppose猜想假想 that 从句做宾语enjoy n pron doingsth finish mind practise period4 复习reading部分 做练习 step1guesswords step2importantphrases step3answerquestionsaboutthetext step4torf 1 thepollutionfightersareprobablyscientists 2 fewusefulproductscomefromtrees 3 treesproduceharmfulgases 4 treescanpassinformationtooneanother 5 onetreehasthepowerof15airconditioners 6 scientistsknowalotabouttrees trueorfalse f f f t f f whatcantreesdo makestreetsmorebeautifulandlessnoisycoolandcleantheairtakeharmfulgasfromtheairreleaseoxygenintotheairthreetreescandothejobof15airconditioners treesareindanger discuss howcanweprotecttreesindanger weshould weshouldn t exercises 用所给单词的正确形式填空 pollutionmeans make thingsdirtyandunhealthy 2 whichofthe follow comefromtrees 3 thelargesweet smellingflowers know astheflowersofshanghaicity 4 thepollutionfightersareprobably science 5 theyarethebiggestandoldest live thingsonearth making following areknown scientist living choosethebestanswers 1 he stheonlysoldier inthatwar see soldiers livesarealwaysfullof aliving dangerousb alive dangerc live dangerouslyd life danger2 there ssomepepperinthesoup iknow i it a feelb believec smelld taste3 thankyoufor metoyourbirthdayparty a invitationb invitec invitingd beinginvite fillintheblankswithproperformstreesaretheearth s andoldestlivingthings theymakestreets beautifuland noisy theyalso wood rubber paper fruit nutsandbeans theycleanand theair theyare airconditioners they oxygenintotheair 1 5 oftreesprovide oxygenfor46studentsfor1year threetreesdothe jobas15airconditioners much provide nature enough hectare big little cool release same biggest more less provide cool natural release hectares enough same treesforlife morepractice thebenefitsofurbantreesarethattheyreducesoundpollution addbeautytocitiesandhelpincreasethevalueofproperty thebenefitsofforesttreesarethattheyprovideshelter food thingsforhumansandanimals materialforhouses furniture paperproducts etc ingredientsformedicines thejoboftreesforlifeistoplanttreesandhelpprotecttheenvironment 1 whatarethebenefitsofurbantrees 2 whatarethebenefitsofforesttrees 3 whatarethejobsoftreesforlife discuss what stheimportanceofprotectingtrees doyougoandlookafterthetreesafteryouhaveplantedthem giveyourreasons 在morepractice中一名为 treesforlife 的组织张贴了他们的海报 宣传护树 植树 环保的理念 作为仿写 要求学生们自成小组 运用所掌握的词汇及句式 制作自己的海报宣传环保 以下精选有代表性的习作共享 writing teachingtargets enablestudentstoknowhowtoplanttrees enablestudentstowritesentenceswiththesimplepasttense step1 lead inwhataretheydoing doyouknowhowtoplantatree digaholeputthetreeintotheholepushtheearthbacksteptheearthwaterthetree step2 lastmarch iplantedtreeswithsomestudents doyouknowhowweplantedthetrees dugaholeputthetreeintotheholepushedtheearthbacksteppedtheearthwateredthetree step3 writeashortarticleonp871 putthepicturesinrightorder 1 2 3 4 5 2 usesimplepasttensetotalkabouteachpicturenote bush container hose sweep swept 对每幅图片提问 让学生回答 3 completethearticle remindstudentstousethepastformsoftheverbsandsomeproperarticlesandprepositionsinnecessaryplaces nearmyhome thereisa someworkersfinisheditlastweek iwatchedthemonmyflat first workers arrive lorry onthebackofthelorrythere be trees bushes theworkers dig holes ground second they plant trees holes newsitting outarea theworkersarrivedinalorry weresometreesandbushes dugholes intheground plantedthetreesintheholes next theybroughtsomelargecontainers they put earth containers thenthey plant bushes container next they pickup allrubbish and sweep area neatly afterthat they water plant hose thentheareawasfinished nowitlooks putearthinthecontainers plantedbushes pickedupalltherubbish sweptthearea neatly wateredtheplantswithahose verybeautiful isthereanychangeinyourcommunity writeitdown whatisit whatisitlike whatgoodisittopeopleinthecommunity language 2periods thepresentcontinuoustense teachingtargets enablestudentstomasterthepresentcontinuoustense rememberthewordsthatcannotbeusedinthepresentcontinuoustense step1 lead in fromtheinterview wehavelearntthatitisourdutytoprotecttreesandenvironment lookatthepicturesbelow whataretheydoing whatisthewomandoing sheisputtingrubbishintotherubbishbin whatisthegirldoing sheiswateringtrees whataretheydoing theyaresweepingthestreets theyarecollectingrubbish theyareplantingtrees step2 presentation whattensedidweusetotalkaboutthepictures presentcontinuoustense form be v ingamiwhatishe she itdoing arewe they youiamwritinghe she itisdrawingwe they youarelistening playaguessinggamewashinghair fishing brushingteeth knockingatthedoor puttingonclothes divingpracticeaskingthesequestionsinpairs whatishe shedoing ishe shefishing standing 2 fromthepracticewedo sumuphowtoadd ingtoverbs weusuallyadd ingtomostverbs someverbscauseschangesintheirspelling isfishing ispractisingtheguitar issunbathing sunbathe iswindsurfing dive isdiving hang glide ishang gliding doexerciseaonp82 a1 example s1 what steddoing s2 he splayingvolleyballwithcarol a2 example s1 istedplayingvolleying s2 yes heis no heisn t he s divefishplaysunbatheeathang glidepractisewindsurf 4 下列动词不用于现在进行时 常用于一般现在时 非延续性动词 如iacceptyouradvice 表情感状态的词 如love like hate dislike fear care等 表内心状态的词 如know suppose understand believe think 表示感官的词 如see hear smell feel look sound taste 表示所属的词 如have own belong等 表示状态的词 如cost exist include contain seem appear remain stand 保持 mean等5 doexercisesonp83 p162 p165 6 1 现在进行时的用法 现在进行时表示说话者说话时正在发生或者进行的动作 可与now atpresent atthismoment等时间状语连用例如 whatareyoudoingnow i mlookingformykey 现在进行时表示目前一段时间内正在进行的动作 但说话时这个动作不一定在进行 可与thesedays years等状语连用 例如 thestudentsarepreparingfortheexam 表示将来的动作 特别在口语中 句中常有一个表示未来的时间状语 多指已计划 安排好的事情例如 i mmeetingpetertonight he stakingmetothetheater 某些动词的进行时可以表示即将发生的动作 这些动词有arrive come leave start go等 例如 theyaregoingtohongkongtomorrow begoingto结构 准备或打算做某事 例如 he sgoingtoworkhere 即将发生或要发生的事it sgoingtobewarm 一 用所给动词的正确时态填空 1 how you get onwithyourwork 2 look thechildren enjoy themselvesinthepark 3 mum cook supperwhenallofuscameback 4 what you do atthattime i give aclass 5 hergrandma always tell herthesamestory aregetting areenjoying wascooking weredoing wasgiving is telling 二 选择填空 1 i amealwhenyou me a cooked wereringingb wascooking rangc wascooking wereringingd cooked rang2 whatbook you wheni youatfouryesterdayafternoon a did read wasseeingb did read sawc were reading sawd were reading wasseeing3 hesaidhe todrawaplaneontheblackboardat