Unit3形容词的比较级精讲专练一、用法1.表示两个人或事物作比较时，形容词要用比较级形式,形容词比较级之后常用than引出比较的对象。例：Thispenislongerthanthatone.这支钢笔比那支长。NewYorkisbiggerthanCambridge.纽约比剑桥大。2.表示两者之间的选择，意为“哪一个更……”。例：Whoistaller,LilyorLucy?莉莉和露西相比,谁更高?二、形容词比较级的变化1.规则变化变化规则例词一般在形容词词尾加-er。tall-taller以不发音的字母e结尾的形容词,只在词尾加-r。late-later以“辅音字母加y”结尾的形容词,先把y变为i,再加-er。busy-busier以重读闭音节结尾,且末尾只有一个辅音字母的形容词，须先双写这个辅音字母再加-er。fat-fatter摇big-bigger2.不规则变化原形比较级原形比较级good,wellbettermany,muchmorebad/illworseoldolder/elderlittlelessfarfarther/further三、形容词比较级前的修饰词在英语中常修饰比较级的词汇有：much,alot,alittle,even,far等。例：Believeme,youreallylookmuchbetterthanbefore.相信我,你看起来真的比以前好多了。Heisalottallerthanme.他比我高很多。Theywenttherealittlelaterthanothers.他们比其他人去的稍微晚一点儿。It’sevenbiggerthananisland.它甚至比一座岛屿都大。Heisfarstrongerthanhisbrother.他比他哥哥强壮得多。四、比较级的常见句型用法例句(1)双方比较,表示一方超过另一方时，ChinaislargerthanItaly.用“比较级+than”结构。中国比意大利大。(2)倍数+比较级+thanTheboxisthreetimesbiggerthanthatone.这个箱子比那个箱子大三倍。(3)“比较级+and+比较级”表示“越来越……”。Ourcountryisbecomingstrongerandstronger.我们的国家正变得越来越强大。(4)“the+比较级，the+比较级”表示“越……，就越……”。Themore,thebetter.多多益善。(5)the+比较级+ofthetwo+名词复数Thetallerofthetwoboysismybrother.两个男孩中较高的那一个是我的哥哥。比较级的使用原则：(1)自身不进行比较，排除自己的方法是使用anyother。例：Heistallerthananyotherboyinhisclass.(不能去掉other)他比他班里的其他任何男孩都高。(2)比较的对象必须是同类的人或事物。例：Mynameislongerthanyours.(不能将yours写成you)我的名字比你的名字长。同步专练()1.Thispictureis______thanthatone.A.beautifulB.morebeautifulC.mostbeautifulD.themostbeautiful()2.Theseflowersare______thanthoseones.A.muchbeautifulB.muchmorebeautifulC.verybeautifulD.asbeautiful()3.TheChangjiangRiverisoneof______riversintheworld.A.longB.longerC.longestD.thelongest()4.Kateismuchearlierthan______.A.IdoB.meC.myD.mine()5.Ithinkitis______olderthanyesterday.A.veryB.muchtooC.muchD.quite()6.Thisfilmis_____interestingthanthatone.A.moreB.muchC.veryD.themost()7.--YourEnglishisverygood.--Butmybrotherlearnsitmuch______thanIdo.A.goodB.wellC.betterD.best()8.Don'tworry.Yourmotherwillget_______.A.wellandwellB.betterandbetterC.wellandbetterD.goodandwell()9.Egyptisoneof________intheworld.A.theoldestcountryB.theoldestcountriesC.mucholdercountryD.mucholdercountries()10.Thegirldoesn'trun________theboy.A.muchfasterasB.asfasterasC.morefastthanD.sofastas()11.--Mum,IthinkI'm_____togetbacktoschool.--Notreally,mydear.You'dbetterstayathomeforanotherdayortwo.A.sowellB.sogoodC.wellenoughD.goodenough()12.Thestudentsare____youngpeoplebetweentheageofsixteenandtwenty.A.mostB.almostC.mostlyD.almostly()13.Shetoldus____storythatweallforgotaboutthetime.A.suchaninterestingB.suchinterestingC.soaninterestingD.asointeresting()14.Jack's____brotheris_____thanhim.A.old;elderB.elder;olderC.old;youngD.elder;younger()15.Theyalllookedatthemaster____andfeltquite_____.A.sad;sadB.sadly;sadC.sad;sadlyD.sadly;sadly用括号内所给单词的适当形式填空。1.LiuLuis________(good)atphysicsthanhertwinbrother.2...
