初中英语人教版七年级下册unit3第四课时.ppt

Period11a-2d,Unit7Whatsthehighestmountainintheworld?,Objectives,TolearntocomparefactsTolearntoexpresslargenumbersTolearntotalkaboutgeographyandnatureTolearnnewwords:square,meter,deep,desert,population,Asia,tour,tourist,wall,ancient,protect,wide,Whichisthehighestmountainintheworld?Whichisthelongestriverintheworld?WhichisthelongestriverinAsia?,Doyouknow?,QomolangmarunsalongtheborderbetweenChinaandNepal.Itiscoveredwithsnowalltheyearround.Its8844.43high,thehighestintheworld.Its26kilometerslong.,TheNileisthelongestriverintheworld.Itsmorethan6600kilometerslong.Itrunsthrough9countries,itsoneofthelargestriverflowsthroughtheinternationalstatesintheworldandrunsintotheMediterraneanSea(地中海)intheend.,TheCaspianSeaisthebiggestlakeintheworld.ItliesintheborderbetweenAsiaandEurope.,TheSaharaisthebiggestdesertintheworld.ItislocatedinthenorthernAfrica,climateconditionsareverybad,isoneoftheearthsmostnotsuitableforbiologicalsurvival.,TheYangtzeRiveristhethirdlongestriverintheworld,thefirstAsianrivers.Its6211.31kilometerslong.TheYangtzeRiverBasin,east-westwidthof3219kilometers,about966kilometerswidenorth-south,passingthrough11provinces.ItrunsintotheEastSeainShanghaifinally.,Matchthefactsyouknow.,8,844metershigh.8,844米高metershigh(long,wide)米高（长，宽)。英语表示“有多长（宽，高）”时，一般将数词和数量单位放在表示长宽高的形容词前作状语。e.g.Thewallis1.7metreswide.,Explaination,A:HowhighisQomolangma?B:Its8,844metershigh.,Practice,Thebiggestdesertintheworldisabout8,000,000squarekilometersinsize.,HowbigistheSahara?Itsabout8,000,000squarekilometersinsize.,Listenandcompletethesentences.,Qomolangmais_thananyothermountainintheworld.2.TheSaharais_desertintheworld.3.TheCaspianSeais_ofallthesaltlakes.4.TheNileis_riverintheworld.,higher,thebiggest,thedeepest,thelongest,Whatisthelongestriverintheworld?,TheNile.,Usetheinformationin1btomakeconversations.,Whatisthebiggestdesertintheworld?,TheSahara.,Listenandnumberthefacts(1-4)intheorderyouhearthem.,6,3005,0005,464300,_TheYangtzeRiverisabout_kilometerslongandtheYellowRiveris_kilometerslong._Chinahasthebiggestpopulationintheworld.ItsalotbiggerthanthepopulationoftheUS._Chinaisover_yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_yearsold._ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.,4,2,1,3,Listenagainandfillintheblanksin2awiththenumbersinthebox.,_TheYangtzeRiverisabout_kilometerslongandtheYellowRiveris_kilometerslong._Chinahasthebiggestpopulationintheworld.ItsalotbiggerthanthepopulationoftheUS.,6,3005,0005,464300,2,4,6,300,5,464,_Chinaisover_yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_yearsold._ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.,1,3,5,000,300,Tapescript,population,population意为“人口数量”，谓语动词要用单数形式。询问人口数量时要用“Whatsthepopulationof.?”提问，而不用howmany或howmuch等提问。表示人口“多”要用large或big；表示人口“少”要用small。,Languagepoints,Practice,这个城市的人口是600万。Thepopulationofthiscityissixmillion中国的人口比美国的人口多很多。ThepopulationofChinaismuchlargerthanthatoftheUSA.,1.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?thatChinais是know的宾语从句。尽管主句的动词是过去时态，但由于宾语从句陈述的是客观事实，所以从句仍用一般现在时。,Languagepoints,2.Itsmucholderthanmycountry.,muchhigher意为“高得多”。在形容比较级前还可以用much,even,alittle,still,alot,less等修饰词表示程度。,Practice,他比我跑得更快。HerunsevenfasterthanI.日本土地面积只比德国大一点儿。JapanisalittlelargerthanGermanyinarea.,A:DidyouknowthatChinaisoneoftheoldestcountriesintheworld?B:Yes,Idid.Itsmucholderthanmycountry.,Makeconversationsusingtheinformationin2a.,Groupwork,A:DidyouknowthatChinahasthebiggestpopulationintheworld?B:Yes,Idid.ItsalotbiggerthanthepopulationoftheUS.,Example1:,A:DidyouknowthatChinaisthebiggestcountryinAsia?B:Yes,Idid.ItsalmostasbigastheUS.,Example2:,A:DidyouknowthatYangzeRiverismuchlongerthantheYellowRiver?B:No,Ididnt.Howlongisit?A:Its6,300kilometerslong.B:Wow!Thatsverylong!,Example3:,中国的长城共有近一万公里，东起河北秦皇岛的山海关，西到嘉峪关，这是明代修筑长城的两个最大关口，北京境内的长城有600余公里，比较著名的有八达岭长城、金山岭长城、司马台长城、慕田峪长城、居庸关长城和箭扣长城等。,TheGreatWall,Pleasereadtheconversationin2d.,Whatstheconversationabout?,ItsaboutatourtotheMingGreatWall.,1.Whichisthebiggestman-madeobjectsintheworld？2.WhichisthemostfamouspartoftheMingGreatWall?,Readagainandanswerthequestionsin2d.,3.HowlongistheMingGreatWall?4.Whatdoestheguidesayaboutthewall?,1.Whichisthebiggestman-madeobjectsintheworld？2.WhichisthemostfamouspartoftheMingGreatWall?,TheGreatWall.,Badaling.,Readagainandanswerthequestionsin2d.,3.HowlongistheMingGreatWall?4.Whatdoestheguidesayaboutthewall?,Itsabout8,850kilometerslong.,Itsquitetallandwide.Itsthelongestwallintheworld.Theancientemperorsbuiltittoprotecttheirpartsofthecountry.Therearenoman-madeobjectsasbigasthis.BadalingisthemostfamouspartoftheMingGreatWall.,1.FeelfreetoaskmeanythingontodaysGreatWalltour.在今天的长城游中，大家尽管问我任何问题，不要拘束。feelfree是英语口语中一个常用表达。若有人让你feelfreetodosomething,就是让你无需拘束，只管按照自己的意愿去做某事。e.g.A:CanIuseyourbathroom?我可以用一下你的卫生间吗？B:Yes,feelfree.可以，请随意。,Languagepoints,2.AsfarasIknow,therearenoman-madeobjectsasbigasthis.据我所知，再没有像它这样大的人造物体了。asfarasIknow是一个固定的表达方式，还可以说sofarasIknow，意思是“据我所知”。例如：AsfarasIknow,Jacksgottwinsisters.就我所知，杰克有一对孪生姐妹。Theyrenotcomingtoday,sofarasIknow.他们今天不来了就我所知是这样的。,asfaras也可表示“远至”(在否定句中也可用sofaras)。,Practice,我们坐火车到北京，然后转乘公共汽车。WewillgobytrainasfarasBeijing,andthantakeabus.我们不如其他人走得远。Wedidntgoas/sofarastheothers.,man-made为合成形容词，意为“人造的”。英语中像这样与-made复合而成的形容词还有：handmade(手工制作的)、homemade(家庭制作的)、machine-made(机制的)、tailor-made(量体定制的；特制的；定做的)等，用以描述产品的生产或制造手段、特点等，甚至还有像self-made(自学而成的；自我奋斗而成的；天然形成的)可以用来描述人。,Practice,面包和糕点都是自家做的。Thebreadandpastryarehomemade.这个电影角色是专为那位男演员量身设计的。Thismovierolewastailor-madeforthatactor.,3.theMingGreatWall明长城“明长城”是指明朝时期为了防御北方游牧民族的骚扰，历时一百多年在北部地区修筑的军事防御工程。这段长城东起辽宁虎山，西至甘肃嘉峪关，从东向西横贯多个省、直辖市、自治区，全长约8850千米，是现存历代长城遗迹中最完整、最坚固的。,Review,课时重点回顾,Whatsthepopulationof.?Itismetershigh(long,wide).much,even,alittle,still,alot,less+形容词比较级asfarasIknowas/sofarasIcanremember/Icantell/Icanseeasfaras远至合成词man-made,Choosethebestanswer.1.Mybrotheris_moreoutgoingthanme.A.manyB.littleC.much2.October12thwasoneof_daysin2005.Shenzhou-VIwaslaunched(发射)successfully.A.excitingB.moreexcitingC.themostexciting3.Whichcityis_,Beijing,ShanghaiorFuzhou?A.beautifulB.morebeautifulC.themostbeautiful,4._childrenthereareinafamily,_theirlifewillbe.A.Theless,thebetterB.Fewer,richerC.Thefewer,thebetter5.Mobilephonesareverypopularnowandtheyare_thanbefore.A.cheapB.cheaperC.thecheapest6.Inourcity,its_inJuly,butitseven_inAugust.A.hotter,hottestB.hot,hotC.hot,hotter,7.Ofthetwoskirts,thepinkoneis_.A.thenicestB.thenicerC.nicer8.Jackshandwritingisas_asMikes.A.goodB.betterC.best9.Wecandotheworkbetterwith_moneyand_people.A.little,fewB.less,fewerC.fewer,less10.JimisthetalleststudentinourclassandTomisthesecond_one.A.tallB.tallerC.tallest,1.Lilygetsup_(early)thanLucy.2.Whichgoes_(slowly),TomorJim?3.Thisbookis_(interesting)thanthatone.,earlier,moreslowly,moreinteresting,根据所给词的适当形式填空,4.Sheworks_(careful)inherschool.5.Whogoestobed_(late)Jim,TomorJack?6.Ithinkturkeyis_(delicious)ofall.,themostcarefully,latest,themostdelic