八年級（下）期末復(fù)習(xí)二形容詞、副詞的比較級和最comparativesandsuperlativeswithadj.andadv.2021/5/91大多數(shù)形容詞和副詞有三個等級：原級、比較級、最高級。一、構(gòu)成規(guī)則及變化:

1、規(guī)則變化2、不規(guī)則變化形容詞、副詞的比較級和最高級2021/5/921.規(guī)則變化:1)單音節(jié)詞和少數(shù)雙音節(jié)詞一般在詞尾后加-er構(gòu)成比較級或-est構(gòu)成最高級.如：原級比較級最高級

cold–——colder–——coldest

bright———brighter———brightestyoung——younger——youngest2021/5/932)以字母

e結(jié)尾的詞只加–r

或-st

構(gòu)成

比較級和最高級。原級比較級最高級

nice———nicer–———nicestfine———finer————finestlarge——larger————largest2021/5/943)重讀閉音節(jié)詞末尾只有一個輔音字母時,先雙寫這個輔音字母,再加-er或-est。如:big–bigger–biggestthin–thinner–thinnest4)以“輔音字母+y”結(jié)尾的雙音節(jié)詞，先改y為i,再加-er或-est。如：

easy–easier–easiesthappy–happier–happiest2021/5/955)多音節(jié)詞和部分雙音節(jié)詞在詞前加more

或most。如：

delicious–moredelicious–mostdelicious

interesting–moreinteresting–mostinteresting

important—moreimportant—mostimportant2021/5/96carefully---morecarefully--mostcarefullyquickly---morequickly---mostquicklyslowly---moreslowly---mostslowlyeasily---moreeasily---mosteasily2021/5/972.不規(guī)則變化：原級比較級最高級good/wellbetterbestbad/badly/illworseworstlittlelessleastmany/muchmoremostfarfarther/furtherfarthest/furthestoldolder/elderoldest/eldest2021/5/98現(xiàn)學(xué)現(xiàn)練一：1.fortable3.big4.happy5.cheap6.many7.difficult

8.little

better

best

morecomfortable

mostcomfortable

bigger

biggest

happier

happiest

cheaper

cheapest

more

most

moredifficult

mostdifficult

less

least2021/5/99二、形容詞和副詞比較級的用法1.Whoruns

faster,heorshe?2.Heruns

fasterthanshe.3.Heruns

muchfasterthanshe.4.Hebecomes

healthierandhealthier.5.Themore

youexercise,

thehealthier

youwillbe.6.Sheis

lesshealthythanhe.2021/5/9101.表示兩者之間的選擇,可用“Which/Who…+比較，…or…?”.2.表示兩者之間的比較，通常用連詞than引導(dǎo)，表示“更······一些”．3.much/far/alot,even,still,alittle/abit…

修飾比較級,表示程度.Whoruns

faster,heorshe?Heruns

fasterthan

she.Heruns

muchfasterthan

she.2021/5/9114.“比較級+and+比較級”表示“越來越……”5.“the+比較級,the+比較級”表示“越…,越…”

6.表示不及另一方時，用“l(fā)ess+原級+than…”

(雙音節(jié)和多音節(jié)詞)Hebecomes

healthierandhealthier.Themore

youexercise,

thehealthier

youwillbe.Sheis

lesshealthythan

he.Heis

healthierthan

she.Shanghaiisbecoming

moreandmoremodern.2021/5/912現(xiàn)學(xué)現(xiàn)練二：1.比較級+and+比較級越來越…2.the+比較級,the+比較級越…,越…3._______________youare,_________mistakesyouwillmake.(你越仔細(xì)，做錯的題目就越少）4.__________youeat,_________you’llbe.(你吃得越多,就越胖)5.Alicewriteswell.Marywrites_________________thanshe.(甚至更好）ThemorecarefulthefewerThemorethefatter1.Thegirlbecomes______________________.

(越來越漂亮）moreandmorebeautiful2.Theweatherisgetting

_________________.

(越來越槽糕）worseandworseeven/stillbetter2021/5/913用法：英語中三者或三者以上相比較，表示“最……”這樣的最高程度概念時，要用“the+最高級”的結(jié)構(gòu)表示。這種句式一般帶有表示比較的介詞短語，比如:inourclass,ofthethree等。例如：WangLinisthetallestinourclass.Thistheateristhecheapestofthethree.注意使用最高級時應(yīng)注意以下幾點：

三、形容詞和副詞的最高級2021/5/914

(1)表示“……中最……之一”的句式，要用oneofthe+形容詞最高級+復(fù)數(shù)名詞。例如:JingjiangHotelisoneofthebiggesthotelsinourcity.Lisaisnotoneofmybestfriends.(2)當(dāng)最高級前面有物主代詞或名詞所有格時，不加定冠詞the。例如：TomisLucy’sbestfriend.Tuesdayisherbusiestday.2021/5/915(3)最高級前可加序數(shù)詞。例如：TheYellowRiveristhesecondlongestriverinChina.(4)形容最高級修飾作表語或介詞賓語的名詞，代詞時，被修飾的詞往往省略。例如：Heisthelaziest(student)inourclass.2021/5/916

1.HainanisaverylargeIsland.Itisthesecond_________islandinchina.(large)2.Ourteacherisas______asbefore.(busy).3.Heis______________amongus.(careful)4.LiLeijumpedfar______thanJim.(far)5.Thebusierheis,the________hefeels.(happy)6.IthinkYaoMingisoneof____________basketballplayersinNBA.(hot)busythemostcarefulfartherhappierlargestthehottest現(xiàn)學(xué)現(xiàn)練三（完成句子）2021/5/9171.表示三者或三者以上比較,可用”Which/Who…+最高級,…,…or…?”表示.2.最高級+of/among(同類比較)in…(范圍比較)4.oneof+形容詞最高級+名詞復(fù)數(shù)表示“最…之一”3.序數(shù)詞修飾最高級總結(jié)提高Whois

thetallest,Tom,Mike,orJack?Tomis

thetallestof

thethree.Mikeis

thesecondtallest

studentinourclass.Jackis

oneofthetalleststudentsinourclass.Tomruns

(the)fastest

inourclass.2021/5/9181.Paulisvery_______.Heis________thanhisbrother.A.heavy---heavier B.heavy---heavy C.heavier---heavierD.heavy---heavyer2.Ithasthe________clothingstoreinthetown.A.goodestB.gooddest C.bestD.better3.Thisruleris____thanthatone.A.longB.longerC.thelongestD.longest4.Thisbookis____ofall.A.cheapestB.cheapC.cheaperD.thecheapest5.Heismuch____thanhisbrother.A.tallB.tallerC.thetallestD.tallest6.LiLeiis____olderthanLucy.A.quiteB.veryC.muchD.moreExercise:一.單選2021/5/9197.Thisisoneof____filmsofthisyear.A.moreexcitingB.excitingC.themostexcitingD.mostexciting8.TheweatherinBeijingiscolderthan_____.A.inGuangzhouB.GuangzhouC.thatinGuangzhouD.thatfromGuangzhou9.Tomis____ofthetwoboys.A.tallerB.tallestC.thetallerD.thetallest10.Ofmyparents,myfather