英语人教版八年级下册unt 7 1a -2d

Unit7What’sthehighestmountainintheworld?SectionAPeriodOneWhat’sthehighestmountainintheworld?Howhighisit?Doyouknow?Qomolangmaisthehighestmountainintheworld.Itis8,844.43metershigh.Nowlet’enjoythebeautifulscenesofQomolangma:Whatdoyouknowaboutthefollowingnumbers?1,025metersdeepTheCaspianSeaWhatdoyouknowaboutthefollowingnumbers?6,671kilometerslongTheNileWhatdoyouknowaboutthefollowingnumbers?9,600,000squarekilometersinsizeTheSaharaReviewWordsandexpressionsReadthewordsandexpressionsloudly.squaremeterdeepdesertpopulationAsiafeelfreetourn.平方；正方形n.米；公尺adj.深的；纵深的n.沙漠n.人口；人口数量n.亚洲(可以)随便(做某事)n.&v.旅行；旅游WordsreviewtouristwallamazingancientprotectwideasfarasIknown.旅行者；观光者n.墙adj.令人大为惊奇的；令人惊喜的adj.古代的；古老的v.保护；防护adj.宽的；宽阔的就我所知WordsreviewTolearntocomparefactsTolearntoexpresslargenumbersTolearntotalkaboutgeographyandnatureTolearnnewwords:square,meter,deep,desert,population,Asia,tour,tourist,wall,ancient,protect,wide…Matchthefactsyouknow.1aQomolangmaTheSaharaTheCaspianSeaTheNileabout9,600,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,844.43metershighListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais_________desertintheworld.3.TheCaspianSeais_________ofallthesaltlakes.4.TheNileis_________riverintheworld.1bhigherthebiggestthedeepestthelongestA:Whatisthehighestmountainintheworld?B:Qomolangma.1cPairworkUsetheinformationin1btomakeconversations.A:Whatisthebiggestdesertintheworld?B:TheSahara.Makeupyourownconversations.Example1:A:Whatisthelongestriverintheworld?B:TheNile.Example2:Listenandnumberthefacts[1-4]intheorderyouhearthem.__TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris________kilometerslong.__Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.__Chinaisover_____yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.__ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.2a1432__TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris_____kilometerslong.__Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.__Chinaisover_____yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven____yearsold.__ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.Listenagainandfillintheblanksin2awiththenumbersinthebox.2b6,3005,4645,0003006,3005,0005,4643001432A:DidyouknowthatChinaisoneoftheoldestcountriesintheworld?B:Yes,Idid.It’smucholderthanmycountry.2cPairworkMakeconversationsusingtheinformationin2a.A:DidyouknowthatChinahasthebiggestpopulationintheworld?B:Yes,Idid.It’salotbiggerthanthepopulationoftheUS.Example1:Makeupyourownconversations.A:DidyouknowthatChinaisthebiggestcountryinAsia?B:Yes,Idid.It’salmostasbigastheUS.Example2:Makeupyourownconversations.A:DidyouknowthatYangzeRiverismuchlongerthantheYellowRiver?B:No,Ididn’t.Howlongisit?A:It’s6,300kilometerslong.B:Wow!That’sverylong!Example3:Makeupyourownconversations.2dPairworkRole-playtheconversation.Guide:Feelfreetoaskmeanythingontoday’sGreatWalltour.Tourist1:Howlongisthewall?Guide:Ah,themostpopularquestion!Ifwe’reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8,850kilometerslong.Thismakesitthelongestwallintheworld.PairworkTourist2:Wow,that’samazing!Whydidtheancientemperorsbuildthewall?Guide:Themainreasonwastoprotecttheirpartofthecountry.Asyoucansee,it’squitetallandwide.AsfarasIknow,therearenoman-madeobjectsasbigasthis.Tourist3:IsBadalingpartoftheMingGreatWall?Guide:Yes,it’sthemostfamouspart.1.populationpopulation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“What’sthepopulationof...?”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。Practise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.2.Qomolangmais8,844.43metershigh.Itis…metershigh(long,wide…).它……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。这座山高三千多米。Themaintainismorethanthreethousandmetershigh.它离我们只有三十八万公里。Itisonly380,000kilometersaway.这座绿色长城长7,000公里。TheGreenGreatWallis7,000kilometerslong.Practise3.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。4.It’smucholderthanmycountry.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。Practise他比我跑得更快。HerunsevenfasterthanI.日本土地面积只比德国大一点儿。JapanisalittlelargerthanGermanyinarea.5.AsfarasIknow,therearenoman-madeobjectsasbigasthis.asfarasIknow意为“就我所知”，其他常用口语表达有as/sofarasIcanremember/Icantell/Icansee等。Practise根据我记得的，她过去住在芝加哥。ShelivedinChicago,asfarasIcanremember.asfaras也可表示“远至”(在否定句中也可用sofaras)。Practise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。Wedidn’tgoas/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。Practise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.课时重点回顾What’sthepopulationof...?Itis…metershigh(long,wide…).much,even,alittle,still,alot,less+形容词比较级asfarasIkno