八年级英语下册Unit7语法比较级和最高级讲解.ppt

八年级英语下册Unit7语法比较级和最高级讲解.ppt

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Grammar,形容词和副词的比较等级,Thedogrunsfasterthanthesheep.,Thesheeprunsfast.,Lily,Tom,Mike,Lilyistall.,TomistallerthanLily.,Mikeisthetallestofall.,英语中的形容词和副词都有三个等级：

1.原级（原形）；2.比较级：

表示_之间进行比较；3.最高级：

表示_之间进行比较。

形容词和副词的比较等级,形容词和副词比较等级的规则变化,一般情况，直接加-er,-est,以e结尾的加-r,-st,以重读闭音节结尾，如末尾只有一个辅音字母，则双写这个辅音字母，再加-er,-est,以辅音字母加y结尾的,变y为i,再加-er,-est,有些双音节词和多音节词，在词前加more,most,形容词和副词比较等级的不规则变化,better,best,worse,worst,more,most,less,least,farther/further,farthest/furthest,older/elder,oldest/eldest,比较级和最高级填空：

cheaper,cheapest,bigger,biggest,closer,closest,friendlier,friendliest,morepopular,themostpopular,morecomfortable,themorecomfortable,better,best,worse,worst,more,most,farther,farthest,形容词和副词比较等级的基本句型,as+原级+as“和一样”,not+as/so+原级+as“不如”,less+原级+than“不如”,.比较级+than.比.（更）.（基本句型）,FlatAismoreexpensivethanFlatB.（同义句）FlatBis__thanFlatA.FlatBis__FlatA.FlatBisnot___FlatA.,less,expensive,cheaper,than,as,expensive,as,the+比较级，the+比较级“越越”,比较级+and+比较级“越来越”,3._youare,_mistakesyouwillmake.（你越仔细，做错的题目就越少）4._youeat,_youllbe.（你吃得越多,就越胖）,Themorecareful,thefewer,Themore,thefatter,1.Thegirlbecomes_.（越来越漂亮）,moreandmorebeautiful,2.Theweatherisgetting_.（越来越槽糕）,worseandworse,倍数+as+原级+as是的几倍倍数+比较级+than.比.几倍.,数次+名词+比较级+than“表示两者之间相差多少”,翻译：

1.我的外套比你的贵两倍。

2.我哥哥比我大5岁。

Mycoatistwicemoreexpensivethanyours.,Mycoatisthreetimesasexpensiveasyours.,Mybrotherisfiveyearsolderthanme.,the+比较级+ofthetwo.“两者中较为的一个”,Which/Who.+比较级，AorB?

“哪一个/谁更.，A还是B？

”,1.Lilygetsup_（early）ofthetwogirls.2.Whichgoes_（slowly）,TomorJim?

3.Whichbookis_（interesting）,thisoneorthatone?

theearlier,moreslowly,moreinteresting,1.比较级+than+anyother+单数可数名词2.比较级+than+theother+复数可数名词“比其他任何一个都.”,Samistheshortestinhisclass.（改为同义句）Samis_than__studentinhisclass.Samis_than__studentsinhisclass.,shorter,anyother,shorter,theother,the+形容词最高级+名词+in/among/of短语（in+范围，among/of+对象）（基本句型）,1.Sheworks_（careful）inherschool.2.Jimgoestobed_（late）inhisfamily.3.Ithinkturkeyis_（delicious）ofall.,themostcarefully,latest,themostdelicious,Which/Who.+the+最高级，A,BorC?

“哪一个/谁更.，A,B还是C？

”,the+序数词+最高级“（在.范围内）第几”,oneofthe+最高级+复数名词“最的之一”,3.LinTaois_intheclassbecausehenevergetstoschoolontime.（最懒的学生之一）4.Edisonwas_intheworld.（最伟大的发明家之一）,oneofthelazieststudents,oneofthegreatestinventors,TheYangtzeRiveris_riverintheworld.（第三长河）,thethirdlongest,2.TheAtlanticis_oceanintheworld.（第二大洋）,thesecondbiggest,形容词原级、比较级和最高级的修饰词

（1）形容词原级前可以用very,quite,rather,too,so,pretty等修饰。

如：

Theshirtisprettygood.

（2）形容词比较级前可以用much/far/alot,even/still,alittle/abit等修饰。

如：

Heismuchstrongerthanyou.（3）形容词最高级前一般要加定冠词the，但当形容词最高级前有物主代词、名词所有格等修饰词时，则不用定冠词the。

如：

Thisismybusiestday.这是我最忙的一天。

latelater-latest,earlyearlierearliest,bigbigger-biggest,fluently/difficultmore,most,重读闭音节、末尾只有一个辅音字母双写加er或est,单音节词在词尾比较级加-er或最高级加-est,以e结尾的词，只需加r或st,以辅音字母加y结尾双音节词变y为i加er或est,部分双音节和多音节词在原级前加more或most,talltaller-tallest,cheap,cold,small,warm,young,high,fine,nice,safe,happy,busy,dirty,easy,lazy,pretty,fat,hot,red,thin,wet,sad,quickly,slowly,useful,careful,popular,modern,形容词和副词比较级和最高级构成（规则变化）,不规则变化,good/wellbetter-best,much/manymore-mostbad/badly/illworseworstlittlelessleastfarfarther/furtherfarthestfurthestoldolder/elderoldest/eldest,1.Paulisvery_.Heis_thanhisbrother.A.heavy-heavierB.heavy-heavyC.heavier-heavierD.heavy-heavyer2.Ithasthe_clothingstoreinthetown.A.goodestB.gooddestC.bestD.better3.Thisruleris_thanthatone.A.longB.longerC.thelongestD.longest4.Thisbookis_ofall.A.cheapestB.cheapD.cheaperD.thecheapest5.Heismuch_thanhisbrother.A.tallerB.tallC.thetallestD.tallest6.LiLeiis_olderthanLucy.A.quiteB.veryC.muchD.more,一.单选。

7.Thisisoneof_filmsofthisyear.A.moreexcitingB.excitingC.themostexcitingD.mostexciting8.TheweatherinBeijingiscolderthan_.A.inGuangzhouB.GuangzhouC.thatinGuangzhouD.thatfromGuangzhou9.Tomis_ofthetwoboys.A.tallerB.tallestC.thetallerD.thetallest10.Ofmyparents,myfatherlooks_.A.oldB.olderC.theoldestD.theolder11.Thiswatchis_thanthatone.A.muchexpensiveB.expensiverC.moreexpensiverD.moreexpensive,12.Lucyisveryshort,butsheis_thanhersister.A.shorterB.longerC.tallerD.older13.Frankis_friendlythanhisbrother.A.alittlemoreB.afewmoreC.muchD.alittle14.Samis_atChinesethanJim.A.goodB.wellC.betterD.gooder,C,A,C,15.Thisoneistoolarge.Canyoushowmea_one?

A.largerB.largeC.smallD.smaller16.DoyouthinkMarchis_thanJanuary?

Yes,its_warmer.A.better,alittleB.well,muchC.worse,veryD.nicer,quite,D,A,二.用括号中形容词的适当形式填空。

1.Iamvery_.ButTomis_thanI.Frankis_.（tired）2.Whichis_（difficult）,physicsorbiology?

3.Thisbookis_thantheothertwo.Itis_ofthethree.（easy）4.Insummerits_（hot）inWuHanthaninBeijing.5.TheChinesepeoplehaveamuch_（good）lifenow.,tired,moretired,themosttired,moredifferent,easier,theeasiest,hotter,better,