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形容词原级\比较级\最高级用法总结:原级常用的句型结构:原级比较：___________________________否定形式为：_______________________或___________________________Youareastallasme.=YouareastallasI(am).HehasasmanybooksasI(have).他的头发和我的一样长.Hishairis_______________mine.他没有我跑得快。Hedoes______run_____fast______I.as既可作介词又可作连词。作介词时，后接人称代词的______格。作连词时，后接一个可以省略的□比较状语从句。比较级运用：1.表示两者之间的选择,句型：“_______________________________”.Whorunsfaster,heorshe?Whichdoyoulikebetter,applesorbananas?谁的苹果更多，他的还是你的？_________applesare__________,hisoryours?你更喜欢谁,Tom还是Jim？__________doyoulike__________,TomorJim?2.表示两者之间的比较，通常用连词__________引导，表示“更······一些”．Herunsfasterthanshe.Tina的店服务比BlueMoon更好。Tina’s____________________thanBlueMoon.我家比他家离学校更近。Myhomeis____________schoolthanhis.3.表示两者之间的比较，_______________________________Tinaisthetallerofthetwo.谁是两个双胞胎中的那个更外向的？Whois__________________ofthetwins.哪条河是两个中更长的？Whichis______________ofthetwo?3.___________________________________________________修饰比较级,表示程度.Herunsmuchfasterthanshe.Tomisheavy.Jennyis___________________(还要胖).Todayis___________________(热一点儿)thanitwasyesterday.Maryisthin.Lindais________________________（甚至更瘦）。Myroomis______________（大得多）thanhis4._____________________________________________________表示“越来越……”Hebecomeshealthierandhealthier.Shebecomesmoreandmorebeautiful.Theroadaheadisgetting________________________________（越来越危险）。Daysinwinteraregetting_______________________________（越来越短）。5.________________________________________________________表示“越…,越…”Themoreyouexercise,thehealthieryouwillbe.你学习越努力，成绩就越好。________________youare,____________gradesyouwillget.你越锻炼，你身体就越健康。_____________youexercise,______________youare.6.表示不及另一方时，用“less+原级+than…”(双音节和多音节词)Heishealthierthanshe.=Sheis________________thanhe.Tinaisnotashardworkingasherbrother.=Tianis___________________thanherbrother.7.比较对象相同时，可用___________,___________等代词代替第二个比较对象TheweatherinShanghaiisbetterthanthatinWuhan.TheTVsmadeisShanghaiisbetterthan________madeinXi’an.8比较级+than与notso/as+adj./adv.+as的相互转换Mariaisnotso/asbraveasHelen.=Helenis______________thanMaria.9.比较级必须是同类人或事物相比较。MyhairislongerthanTom’s.比较级句子中涉及到的人称代词和物主代词的用法1)主格和宾格:_______________用主格，________________用宾格.（原句）MikeisstrongerthanNancy.（改一改）Heisstrongerthanher.（原句）Thismanistallerthanthatman.(改一改)_______istallerthan_______.（原句）HelenswimsfasterthanSuYang.(改一改)_______swimsfasterthan_______.2)形容词性物主代词和名词性物主代词（原句）Liutao’sbagisheavierthanYangLing’sbag.(改一改)Hisbagisheavierthanherbag.Hisisheavierthanhers.想一想：红色部分分别是什么类别的物主代词？（原句）MrGreen’sdeskisbiggerthanMissLi’sdesk.(改一改)________deskisbiggerthan________desk.________isbiggerthan________.最高级运用：1.表示三者或三者以上比较,可用________________________表示.Whoisthetallest,Tom,Mike,orJack?你最喜欢谁,Tom，Tim还是Jim？Whodoyoulike___________,Tom,TimorJim?MovieWorld,TownCinema和ScreenCity哪家音效最好？Whichhas______________,MovieWorld,TownCinema和ScreenCity2.最高级+_____________________(同类比较)最高级+_____________________(范围比较)Tomisthetallest______________thethree.Tomruns(the)fastest___________ourclass.3._______________词修饰最高级Mikeisthesecondtalleststudentinourclass.TheYangtzeRiveris________________________(第三长河)intheworld.TheAtlanticis_____________________________(第二大洋)intheworld.4.oneof+___________________+_________________表示“最…之一”Jackisoneofthetalleststudentsinourclass.Mum是全家最忙的人之一。Mumis________________________________inmyfamily.西安市中国最古老的城市之一。Xi’anis_____________________________________inChina。5.当最高级前面有_____________代词或___________所有格时，_____加定冠词the。例如：Tomis__________________.(Lucy最好的朋友)。Tuesdayis________________.(她最繁忙的一天)。练习：一、改错：1.Tina’shandwritingisbetterthanme.2.TaraisasmoreoutgoingasLarry.3.SamcanplaythepianoasgoodasMary.4.ChinaisbiggerthananyothercountryinAfrica.5.ChinaisbiggerthananycountryinAsia.6.Jennyisthehappiestinhersisters.7.Themoreharderyoustudy,thebetteryouwillbe.8.Mysisterisgettingmoreandmoretaller.9.Whatdoyoulikemost,basketball,soccerortennis?10.Heisquitefunnierthanhisbrother.11.Hehasmuchmorefriendsthanme.12.Mr.Geismytheoldestteacherinmyschool.13.Computerisoneofthemostusefulinventionintheworld.14.Heissecondtalleststudentinmyclass.15.ThefruitofTaiwanismoredeliciousthanitofXi’an.16.Whocomesearlierofthetwins?17.TownCinemaistheshortestwaitingtimeintown.18.YoucanbuyticketsthemostquickatScreencity.19.Tinaisgettingmoreandmorecarefully.20.Shesangmoreclearlythanotherstudentsinherclass.二、选择题：1.Mobilephonesareverypopularnowandtheyare_____thanbefore.A.cheapB.cheaperC.cheapestD.thecheapest2.Whenwespeaktopeople,weshouldbe.A.aspoliteaspossibleB.aspoliteaspossiblyC.aspolitelyaspossibleD.aspolitelyaspossibly3.Thisbookis__________thatone,but________thanthatone.A.asdifficultas;expensiveB.asmoredifficultas;moreexpensiveC.asdifficultas;moreexpensiveD.moredifficultas;asexpensive4.Thetrousersare______,butTomdoesnotcareabit.A.tooalittlesmallB.alittletoosmallC.atoolittlesmallD.asmalltoolittle5.Ithinkscienceisthanphysics.A.muchimportantB.importantC.muchmoreimportantD.moremuchimportant6.Mr.Johnsonandhis______daughterdonotalwaysunderstandeachother.A.olderB.theoldestC.eldestD.theeldest7.Thesechildrenare_________thisyearthantheywerelastyear.A.moretallB.mor