形容词和副词的比较等级演示教学

形容词和副词的比较等级形容词adj.和副词adv.的三级变化及运用大多数形容词和副词有三个等级：原级比较级最高级原级：即形容词和副词的原形。如：small,good,pretty,big,manyhard,happily,slowly,quickly程度副词very,too,so,quite等可以修饰形容词和副词的原级。如：verytalltoohotsofastquiteinteresting1.as+形/副原级+as…“和……一样……”Youareastallasme.=YouareastallasI(am).HehasasmanybooksasI(have).Thiscomputerrunsasfastasthatone.2.否定：notas/so+形/副原级+as…“不如……”Thisjacketisn’tas/socheapasthatone.Tomdoesn’tstudyas/sohardashisbrother.3.倍数句型：…times（倍数）as+形/副原级+as…=…times（倍数）+形/副比较级+than…(形容/副词常为：big/wide/deep/long/fast…)Theriverisfivetimesaslongasthatone.=Theriveris__________________thatone.fourtimeslongerthanTheroomisthreetimesasbigasmine.=Theroomis________________mine.twicebiggerthanHeisn’toldenoughtogotoschool.4.so+形/副原级+that…such+名词短语+that…Heissoyoungthathecan’tgotoschool.Sheissuchalovelygirlthateveryoneloveherverymuch.5.too+形/副原级+to太……而不能……Heistooyoungtogotoschool.6.形/副原级+enoughtodosth.足够……做某事如此……以至于……形容词/副词的比较级与最高级比较级译为：更……最高级译为：最……比较级：表示两者的比较时用比较级。最高级：表示三者或三者以上的比较时，用最高级。形容词/副词比较级和最高级的变化规则:1.一般在词尾直接加er/est:tall—taller—tallest2.以e结尾的单词直接加r/st:wide—wider—widest(large,nice,fine)3.以辅音字母+y结尾的单词，变y为i,再加er/est:busy—busier—busiest(early,happy)•以一个元音字母+一个辅音字母结尾的重读闭音节单词，先双写尾字母，再加er/est:big—bigger—biggest(fat,thin,hot,wet)多音节和部分双音节词的比较级和最高级：由more/most+形容/副词原级构成。serious—moreserious—mostseriousinteresting—moreinteresting—mostinteresting(happily,heavily,carefully,careful,expensive,exciting,boring)某些单音节词，+more,most构成比较级和最高级。glad–moreglad–mostgladpleased–morepleased–mostpleasedtired–moretired–mosttiredoften-moreoften-mostoften原级比较级最高级bad/badly/illworseworstfarfartherfurtherfarthest(距离)furthest(程度，意义)good/wellbetterbestlittlelessleastmany/muchmoremostoldolderelderoldest(年龄)eldest(长幼，辈分)不规则变化比较级：两个人或物之间的比较。表示“较……”或“更……”。标志词：than（比）I’mgoingtoworkharderthanbefore.比较级前面可以用even(更加)，much(……得多)，far(……得多)，alittle(……一点)，abit(一点)，alot(大量)，still(还，还要)等词语修饰。eg:Thispenismuchbetterthanthatone.TomisalittleshorterthanhisfriendJim.1.……比较级+than……“比……更……”Youaretallerthanme.=YouaretallerthanI(am).MaryismuchyoungerthanAmy.4.比较级+and+比较级“越来越……”Theweatherisgettingwarmerandwarmer.Ourschoolisgettingmoreandmorebeautiful.5.the+比较级…,the+比较级…“越……,越……”Thebigger，thebetter.3.疑问词+动词+比较级，…or…?“……更……?”Whichislonger,thisoneorthatone?/Whodrawsbetter,TomorJim?2.the+比较级+ofthetwo“两者中更……的一个”Heisthestrongerofthetwoboys./Jimisthetallerofthetwins.other＋n.（复）其他……any＋n.(单)任何一个……anyother+n.（单）其他任何一个……otherriversinChina.anyriverinJapan.anyotherriverinChina.Changjiangislongerthan比较级＋than＋当某一人/事物与其他人/事物作比较时，被比较的事物中不能包括本身。温馨提示：Myarmsarelongerthanyours.HeistallerthanI.比较必须在同类中进行，即人与人比，物与物比。TheweatherinShanghaiisbetterthanthatinWuhan.ThewordsinLessonThreeareeasierthanthoseinLessonFour.如果比较对象相同，可用that/those代替第二个比较对象。1.…oneof+the+最高级+名词复数最……之一LuXunisoneofthegreatestwriterslastcentury.Bobisthetallestboyinourschool.Mymotheristhebusiestinmyfamily.LiTaojumpsthefarthestofall.Ofallthemoviestars,IthinkZhangZiyiisthebest.3.疑问词+动词+最高级，A,BorC?“……最……?”Whoistheyoungest,Jim,TomorJenny?2.最高级后常跟in或of短语。in+单位集体/of+参比成员“在……中，……最……”最高级：表示三者或三者以上的比较时，用最高级。注:形容词最高级前要加the,副词最高级前可加可不加。6.one’s+最高级某人的最……此时最高级前省略定冠词the。MybestfriendisMary.5.Thisis/wasthe+最高级+名词+that从句ThisistheworstfilmthatIhaveseentheseyears.4.the+序数词+最高级第几……ChangjiangisthefirstlongestriverinChina.HuangheisthesecondlongestriverinChina.•比较级与最高级的互换如：Heisthetallestinhisclass.=Heistallerthananyotherstudentinhisclass.或Heistallerthantheotherstudentsinhisclass.the+最高级=比较级thantheother+名词复数其他所有……=比较级thananyother+名词单数其他任何一个……theother+复数=anyother+单数合并句子，每空一词：1.Lucyis8yearsold.Lilyis8yearsold,too.Lucyis__________________Lily.2.Dannyis15.Jennyis12.Jennyis______________________thanDanny.3.Jimjumps2metreshigh.Tomjumps3metreshigh.Tomjumps_______________Jim.4.Jennyjumpsfar.BrainjumpsfartherthanJenny.DannyjumpsfartherthanBrain.Dannyjumps_______________thethree.5.Acarruns100kilometresperhour.Abikeruns50kilometresperhour.Acarruns___________________asabike.higherthanfarthestoftwiceasfastasoldasthreeyearsyounger用括号内形容词或副词的适当形式填空:1.Thishorseisvery________(strong),butthathorseismuch_________(strong)thanthisone.2.It’ssolate,soIdrivethecar___________(slowly)thanusual.3.The____(little)youeat,the_________(thin)youare.4.TheBeijingLibraryisoneof__________(big)librariesinChina.5.Thestreetisas_______(long)asthatone,butitis_____(wide)thanthatone.6.Hisdrawingisn’tso_______(good)asyours.7.Whenapieceoficeistakenintoawarmroom,itbecomes__________(small)and__________(small).8.Thispianois______________(expensive)thantheothertwo.Itis__________________(expensive)ofthethree.9.Whichis________________(difficult),English,Chineseormath?strongstrongerlesslongsmallermoreexpensivethemostdifficultmoreslowlygoodthebiggestwidersmallerthemostexpensivethinnerCorrectthemistakes:1.Mary’shairislongerthanmysister.2.TheweatherinBeijingiscolderthaninShanghai.3.Theapplesinthisbasketarebetterthantheminthatbasket.4.TheChangjiangRiverislongerthananyriverinChina.5.ChinaislargerthananyothercountriesinEurope.6.HisolderbrotheriselderthanI.7.Ourcountryisgettingmorebeautifulandmorebeautiful.8.Thisclassroomisthreetimesasb