牛津8AUnit1Friendship語法知識&語法專練:形容詞的比較級最高級第一部分：語法知識詳解形容詞的比較級和最高級用于比較事物之間的性質(zhì)、狀態(tài)或特征。一、構(gòu)成規(guī)則1.規(guī)則變化規(guī)則原級比較級最高級例句單音節(jié)詞和部分雙音節(jié)詞一般在詞尾加

er,

esttalltallertallestTomis

taller

thanMike.以字母e結(jié)尾nicenicernicestSheisthe

nicest

girlinourclass.以輔音字母+y結(jié)尾happyhappierhappiestIam

happier

now.重讀閉音節(jié)，且末尾只有一個輔音字母bigbiggerbiggestTheappleis

bigger

thanthatone.多音節(jié)詞和部分雙音節(jié)詞在詞前加

more,

mostimportantmore

importantmost

importantHealthis

moreimportant

thanwealth.carefulmore

carefulmost

carefulThisisthe

mostcareful

work.2.不規(guī)則變化有幾個常用的形容詞有不規(guī)則的變化形式，必須牢記。原級比較級最高級例句good/wellbetterbestAgoodfriendis

better

thanafortune.bad/illworseworstThisisthe

worst

dayofmylife.many/muchmoremostIhave

more

booksthanyou.littlelessleastThisisthe

least

expensiveshirt.farfarther

(距離)/

further

(程度)farthest

/

furthestLet'sdiscussit

further.(進一步討論)二、基本用法1.比較級(parativeDegree)用于兩者之間的比較，常用結(jié)構(gòu)為：A+be+比較級+than+BLucyismoreoutgoingthanhersister.(露西比她的姐姐更外向。)Atruefriendismorevaluablethangold.(一個真正的朋友比更珍貴。)2.最高級(SuperlativeDegree)...者或三者以上的比較，表示“最...”。常用結(jié)構(gòu)為：the+最高級+比較范圍(通常用in或of引導(dǎo)的短語)Heisthetallestinourclass.(他是我們班最高的。)Thisisthemostinterestingbookofthethree.(這是三本書中最有趣的一本。)注意：副詞最高級前的the可以省略。Whoruns(the)fastestinyourschool?三、特殊用法和重要結(jié)構(gòu)（本單元重點）as......原級+as...（和...一樣）表示A和B程度相同。Mybestfriendisastallasme.(我最好的朋友和我一樣高。)Englishisasimportantasmaths.(英語和數(shù)學(xué)一樣重要。)as......s/so+原級+as...（不如...）表示A不如B。Thismovieisnotasinterestingasthatone.(這部電影不如那部有趣。)Iamnotsooutgoingasmybrother.(我不如我哥哥外向。)...比較級+and+比較級（越來越...）表示事物本身程度的逐漸變化。Theweatherisgettingcolderandcolder.(天氣變得越來越冷了。)Ourfriendshipbeesstrongerandstronger.(我們的友誼變得越來越牢固。).........比較級...,the+比較級...（越...就越...）表示一方的程度隨著另一方的變化而變化。Themoreyoupractice,thebetteryourEnglishwillbe.(你練習(xí)得越多，你的英語就會越好。)Thesooner,thebetter.(越快越好。)5.Which/Whois+比較級,AorB?用于在兩者之間進行選擇提問。Whoismorehumorous,TomorJerry?(湯姆和杰瑞誰更幽默？)Whichisbetterforus,playinggamesorreadingbooks?(打游戲和看書，哪個對我們更好？)第二部分：語法專練一、用所給形容詞的正確形式填空1.Agoodfriendis_________________(important)thanmoney.2.Thisis_________________(delicious)cakeIhaveeverhad.3.Mynewschoolisalot_________________(big)thanmyoldone.4.Whois_________________(outgoing),LucyorLily?5.Ihopeourcountrywillbee_________________and_________________(beautiful).6.Heisnot_________________(tall)ashisfather.7._________________(much)youread,_________________(smart)youwillbee.8.Thisproblemis_________________(little)difficultthanthatone.9.Keepingasecretisoneof_________________(important)thingsamongfriends.10.Ifeel_________________(good)todaythanyesterday.二、選擇題()1.Davidis____thanhisbrother.Soheoftenmakesmistakes.A.carefulB.morecarefulC.lesscarefulD.theleastcareful()2.—Whichis____seasoninyourhometown?—Ithinkit'sautumn.A.goodB.betterC.bestD.thebest()3.Afriendis____amirror.(仿寫諺語：朋友就像一面鏡子。)A.asgoodasB.aswellasC.sogoodasD.notasgoodas()4.____youare,____mistakesyouwillmake.A.Themorecareful;thefewerB.Themorecarefully;thefewerC.Themorecareful;thelessD.Themorecarefully;theless()5.Ofallthestudents,Lindadraws____.A.verywellB.muchbetterC.thebestD.best三、句型轉(zhuǎn)換1.Tomis15yearsold.Jackis16yearsold.(合并為一句，用比較級)Jackis_________________________Tom.2.Thisbookisinteresting.Thatbookismoreinteresting.(合并為一句，用notas...as)Thisbookis_________________________thatbook.3.Mybrotherisverytall.Heis1.85meters.(對劃線部分提問)_________________________isyourbrother?4.Ihavemanyfriends.Johnismyclosestfriend.(合并為一句，用最高級)Johnis_________________________allmyfriends.5.Theapartmentissmall.Thehouseisbig.(用比較級改寫為兩個句子，表達對比)Thehouseis_________________________theapartment.Theapartmentis_________________________thehouse.第三部分：練習(xí)答案一、用所給形容詞的正確形式填空1.moreimportant2.themostdelicious3.bigger4.moreoutgoing5.morebeautiful,morebeautiful(或moreandmorebeautiful)6.astall7.Themore,thesmarter8.less9.themostimportant10.better二、選擇題1.C(大衛(wèi)不如他哥哥細心。)2.D(季節(jié)有四個，用最高級，且前面要加the)3.A(朋友就像一面鏡子。asgoodas表示“和...一樣好”)4.A(你越細心，犯的錯誤就越少。careful是形容詞，修飾you；mistakes是可數(shù)名詞，用fewer修飾)5.C(“在所有學(xué)生中”是最高級的標(biāo)志，副詞最高級前the可省略，但C和D中C更規(guī)范)三、句型轉(zhuǎn)換1.JackisolderthanTom.2