英语人教版八年级下册unit7 grammar focus.ppt

Unit7Whatsthehighestmountainintheworld?Section A Grammar focus4cNow lets try to translate the sentences below:1.那个篮球运动员有两米高。那个篮球运动员有两米高。2.那条河只有两米深。那条河只有两米深。3.这个教室有五米宽。这个教室有五米宽。4.那条河长两千米。那条河长两千米。Thebasketballplayeristwometerstall.Theriverisonlytwometersdeep.Theclassroomisfivemeterswide.Theriverisabouttwokilometerslong.5.这座山大约有两千米高。这座山大约有两千米高。6.这个箱子大约有两米高这个箱子大约有两米高/宽宽/长。长。Themountainisabouttwothousandmetershigh.Theboxisabouttwometershigh/wide/long.GrammarFocusKeywords?一一.Adj.&adv.同级比较的构成规则。同级比较的构成规则。二二.肯定肯定/否定否定Adj.&adv.的同级比较的同级比较Adj.&adv.的比较级和最高级的比较级和最高级一一.Adj.&adv.比较级与最高级的构成规则。比较级与最高级的构成规则。1.规则变化规则变化单音节和部分双音节：单音节和部分双音节：a.b.c.d部分双音节和多音节：部分双音节和多音节：a.2.不规则变化：不规则变化：good/well;bad/ill;much/many little/far二二.用法用法1.肯定肯定/否定否定3.特殊：表示特殊：表示“不及不及”2.2.比较级：比较级：key word?key word?比较级的特殊用法：比较级的特殊用法：a.Of the two 结构的比较级结构的比较级b.越来越：越来越：c.越越;越越.d.修饰比较级用？修饰比较级用？3.3.最高级：最高级：a.of/in 的用法的用法b.表示最表示最之一之一c.表示第几最表示第几最比较级和最高级的转换比较级和最高级的转换e.g.Tomisthetalleststudentintheclass.=Tomistallerthananyotherstudentintheclass.=Tomistallerthantheotherstudentsintheclass.anyother+n.单数单数=other+pl.1.Ourfamilyhasboughtacarsowecantravel_thanbefore.（2008陕西）陕西）A.mosteasilyB.lesseasilyC.easilyD.moreeasily2.Myfathertoldmeastorylastnight.Itis_oneIveeverheard.（2009陕西）陕西）A.thefunniestB.funniestC.funnierD.thefunnierDA3.The_friendsyouhave,the_youwillbe.（2010陕西）陕西）A.more,happyB.many,happyC.more,happierD.many,happier4.Whenheheardacryforhelp,heranoutas_ashecould.（2011陕西）陕西）A.hardlyB.quicklyC.finallyD.slowlyCB倍数表达法：倍数表达法：1.A+be/v+倍数倍数(twice/threetimes)+as+原级原级+as+BA是是B的几倍大。的几倍大。Eg.我的房间是她的两倍大。我的房间是她的两倍大。Myroomistwiceasbigashers.2.A+be/v+倍数倍数+比较级比较级+than+BA比比B几倍几倍Eg.我的房间比她的房间大我的房间比她的房间大2倍。倍。Myroomistwicebiggerthanhers.A比比B.多少：多少：A+V(谓语谓语)+数字数字+单位单位+比比较级较级+thanB.A比比B高高20cm.Ais20cmtallerthanB.A比比B胖胖15磅。磅。Ais15poundsfatterthanB.A比比B跑得快跑得快10秒。秒。Aruns10secondfasterthanB.longestlongerhighpopularbigoldermuchWrite two comparisons about two topics.Write true facts.Tworivers:_and_4bTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeRiveristhelongestriverinChina.theYangtzeRivertheAmazonRiverLuzhouChongqingChongqingisbiggerthanLuzhou.=LuzhouissmallerthanChongqing.Chongqinghasabigger/largerpopulationthanLuzhou.=LuzhouhasasmallerpopulationthanChongqing.4cWritefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.1._2._3._4._5._Whatisthehighestbuildinginourcity?Whatisthebusiestsubwaystationinourcity?Whatisthelargestshoppingmallinourcity?Whichisthebiggestparkinourcity?Whichisthelongestroadinourcity?1.Sheis_than_.A.busier/usB.busier/weC.morebusy/usD.morebusy/we2.Janeis_thanBetty.A.lesstallerB.lesstallestC.lesstallD.notastall3.Chinais_countryintheworld.A.thethirdlargestB.thelargestthirdC.thethirdlargeD.athirdlargestBAA4.Whichis_seasoninBeijing?Ithinkitsautumn.A.goodB.betterC.bestD.thebest5.Whichis_,thesun,themoonortheearth?Themoonis.A.smallB.smallerC.smallestD.thesmallestDD6.IstudyEnglishas_asmybrother.A.hardB.harderC.hardest7.Whichis_,abicycleoracomputer?A.expensiveB.moreexpensiveC.themostexpensive8.TheYellowRiverisoneof_riversinChina.A.longB.longerC.thelongestABC