海淀教研：初二英语Unit3 比较级

GRAMMAR英语中要比较两个事物或动作，就会用到形容词或副词的比较级。e.g.Tomisshort.（形容词）Jackisshorter.JackisshorterthanTom.e.g.Iworkhard.（副词）Heworksharder.Heworksharderthanme/Ido.Sentencepattern(句子结构):表示两者比较的常用结构（A和B比较）：A+be动词+形容词的比较级+than+BA+实义动词+副词的比较级+than+B如：Youarethinnerthanme.Thisrulerislongerthanthatone. Tomrunsfasterthanme.Iamtaller.Youaretall.Iam

tallerthan

you(are).Peggyishappier.Theyarehappy.Peggyis

happier

than

theyare(them).Iambetter.Maryisgood.Iam

betterthan

Mary(is).￥100￥200Whichismoreexpensive,thebrowncoatortheyellowcoat?Theyellowcoatismoreexpensivethan

thebrownone.Thebrowncoatisexpensive.DonaldDuckHarryPotterWhichismoreinteresting?HarryPotterismoreinterestingthanDonaldDuck.DonaldDuckisinteresting.Whichgoesfaster,thebikeorthecar?Thecargoesfaster

thanthebike.Thebikegoesfast.Whichflieshigher,theplaneorthebird?Theplaneflieshigher

thanthebird.Thebirdflieshigh.Whichrunsfaster,thedogorthesheep?Thedogrunsfaster

thanthesheep.Thesheeprunsfast.构成方法原级比较级longfewcheaplongerfewercheapernicesafelatenicersaferlaterbighotthinslimbiggerhotterthinnerslimmerprettyunhappyheavyprettierunhappierheavier大部分单音节词在词尾加-er或-est以字母e结尾的词，加-r或-st重读闭音节词只有一个辅音字母时，应先双写辅音字母，再加-er或-est以辅音字母+y结尾的双音节词，先改“y”为“i”,再加-er或-estFormComparatives构成方法原级比较级generouscarefuldangerousamazingmoregenerousmorecarefulmoredangerousmoreamazing不规则变法good/wellbetterbad/badly/illworsemany/muchmorelittlelessfarfarther（更远的）further（深入的）oldolder/elder部分双音节词和多音节词在前面加more或most形容词副词的比较级变化（规则变化）1.单音节和少数双音节词比较级的构成。1）在词尾加-er;

tall—tallersmart—smartershort—shorterhigh—higher2)以不发音的字母e结尾的，加-r;

nice—nicerlarge—larger

fine—finerlate—later3)重读闭音节如末尾只有一个辅音字母，须先双写这个辅音字母，再加-er；

big—biggerfat—fatterthin—thinnerred—redder

hot

—hotterwet—wetter

4)以辅音字母+y结尾的双音节词，先改y为i再加er

；

happy—happierearly—earlierfunny—funniereasy—easier

5)多音节词和部分双音节词要在单词前面加more；

important—moreimportantdelicious—moredeliciousexpensive—moreexpensiveathletic—moreathleticoutgoing—moreoutgoingtired—more

tiredserious—more

serious不规则变化good/well—better bad—worsemany/much—more little—lessfar—farther/further

注：有些形容词副词没有比较等级如：right,wrong,woolen,very