八年级英语下册 Unit 8 A green world Welcome to the unit课件 （新版）牛津版.ppt

Unit8Agreenworld,Welcometotheunit,Warmingup,Didyouknowthataroundtheworld,3to6billiontreesarecutdowneachyear?2.Haveyoueverplantedatree?,Newwords.,recyclevt.回收利用，循环利用,Whatcanberecycled?,Howtorecycle?,Wecanreduceairpollutionbyridingbicycles.,reducevt.&vi.减少，降低,Wecansavewaterbytakingshortershowers.,takeashower,wiseadj.明智的，充满智慧的,e.g.Theprofessorisverywise.这名教授充满智慧。,causevt.导致；造成,e.g.Humanpollutioncausesglobalwarming.人为污染导致全球变暖。,Theclass1,Grade8studentsaretalkingaboutwaystoliveagreenlife.Lookatthepicturesbelowandmatchthemwiththecorrectsentences.,Agreenlife,a.Wecanreduceairpollutionbyridingbicycles.,b.Wecansavewaterbytakingshortershowers.,c.Wecansaveenergybyturningoffthelightswhenweleavearoom.,d.Wecanprotecttheenvironmentbyrecyclingwaste.,Listenandanswer,1.HowdidKittygotoschoolinthepast?2.Whataboutnow?3.WhatdoesMilliethinksheshoulddotoliveagreenlife?,Herfatherusedtodrivehertoschool.,Theytaketheundergroundnow.,Shethinksitswiseforpeopletochoosepublictransportandridebicycles.,4.WhataboutDaniel?5.WhataboutSandy?,Hethinkswecantakeshortershowerstosavewater.,Shethinksweshouldremembertoturnoffthelightswhenweleavearoom.,Readtheconversationaftertherecorder.,Workingroupsandtalkaboutthewaystoliveagreenlife.,A:Whatshouldwedotoliveagreenlife?B:Ithink.C:Ithink.D:Ithink.,Freetalk,Listenandanswer,1.WhatisHobogoingtodo?2.Willmoretreesbeplantedthisyear?3.WhatdoesEddielikedoing?4.WhatwillEddieplant?,Heisgoingtoplanttrees.,Yes.Treesaregoodforus.,Helikesdigginginthegarden.,Hewillplantbreadfruittrees.,Actoutthecomicstrip,Languagepoints,1.Whatareyougoingtodo?你打算做什么？句中begoingtodosth.意思是“打算、计划做某事”。e.g.IamgoingtoplanttreesthisSunday.我打算这个星期天去植树。Heisgoingtoseeafilmnextweekend.他打算下个周末去看电影。,2.Willmoretreesbeplantedthisyear?今年更多的树将会被种植吗？句中willbeplanted意思是“将会被种植”，“willbe+动词的过去分词”是一般将来时的被动语态。e.g.Thepandawillbesenttothezootomorrow.这只大熊猫明天将被送到动物园。,将下列句子改为被动语态。1)Hisfatherwillmendhisbike._2)Johndidntfinishthehomework._3)DidMikewatchthenewmovieyesterday?_,Hisbikewillbemendedbyhisfather.ThehomeworkwasnotfinishedbyJohn.WasthenewmoviewatchedbyMikeyesterday?,4)Arethestudentsgoingtoplanttreestomorrow?_,Aretreesgoingtobeplantedbythestudentstomorrow?,3.Wecanreduceairpollutionbyridingbicycle.我们可以通过骑自行车来减少空气污染。句中reduceairpollution意思是“减少空气污染”，“bydoingsth.”意思是“通过做某事”。,e.g.Wecanprotecttheenvironmentbyrecyclingthings.我们可以通过回收利用东西来保护环境。Wecansaveenergybyturningoffthelights.我们可以通过关灯来节约能源。,4.Mydadusedtodrivemetoschool.我爸爸过去常常开车送我去学校。句中usedtodosth.意思是“过去常常做某事”。usedto表示过去的习惯动作或状态，它可以用于各种人称，其后接动词原形。e.g.Theyusedtoplayfootballontheplayground.他们过去常常在操场上踢足球。,“drivesb.+地点副词/to+地点名词”意为“驾车送某人去某地”。drivetosp.=gotosp.bycar意思是“开车去某地”。e.g.Canyoudrivemetothetrainstation?你可以开车把我送到火车站吗？Myfriendsoftendrivetowork.=Myfriendsoftengotoworkbycar.我的朋友们经常开车去上班。,5.Itswiseforpeopletochoosepublictransportorridebicycles.对人们来说选择公共交通或骑自行车是明智的。Itis+adj.+forsb.+todosth.意思是“对某人来说做什么事情怎么样”。常用于此句型的形容词有important,difficult,dangerous,necessary,useful,possible等，用来对todosth.进行说明，此句型可以转换成Todosth.is+adj.。,e.g.ItisveryimportantforstudentstolearnEnglishwell.对学生们来说学好英语是很重要的。,Itis+adj.+of+sb.+todosth.，常用于此句型的形容词有good,kind,nice,clever,wise等，用来对sb.的性格、品质等进行说明，将这个句型中的sb.和adj.提出来可以造句为sb.+be+adj.。,e.g.你这样说真是太好了。Itsverykindofyoutosayso.,根据汉语提示写单词。1.Ishe_(严肃的)?2.Wecan_(减少)airpollutionbyridingbicycles.3.Heis_(挖洞)inthegarden.4.Wecan_(回收利用)oldthings.5.Itis_(明智的)ofyoutotakeamap.,serious,reduce,digging,recycle,wise,Exercises,1.打算、计划做某事2.植更多的树3.在花园里挖土,begoingtodosth.plantmoretreesdiginthegarden,4.种植水果面包树5.对.有好处6.减少空气污染7.严重的，严肃的,plantbr