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1比较级的构成一、形容词级的构成1.单音节形容词的比较级以及以-ly,-er,-ow结尾的形容词在词尾加-er；以e结尾的形容词在词尾直接加-r构成，重读闭音节双写末位字母再加er。dark→darker;quick→quicker;;clever→cleverer;simple→simpler;narrow→narrower。2.多音节形容词的比较级在其前加more构成。important→moreimportant;beautiful→morebeautiful。3.表语形容词以及由分词变来的形容词，在其前加more构成。afraid→moreafraid;interesting→moreinteresting;pleased→morepleased。4.少数形容词的比较级是不规则的。good/well→better;bad/ill→worse;far→farther/further;much/many→more;little→less5.以辅音加y结尾的，把y变i，加er。early→earlier;funny→funnier基本句型原级比较1.由“．．．as+形容词+as．．．”或“．．．as+形容词+名词+as．．．”构成。Mygrandpaisasenergeticasayoungman.Exerciseisasusefulawayasanyothertoloseunwantedweight.ItrytofindasmuchinformationasIcanaboutwhathappened.2.由“．．．notso(as)+形容词+as．．．”或“．．．notso(as)+形容词+名词+as．．．”构成。Luckilytheweatherwasnotsowetasitistoday.不同级比较1.由“……形容词比较级+than．．．”构成。Heismoreconcernedaboutothersthanabouthimself.2.由“．．．many/muchmore+可数/不可数名词+than．．．”MyfriendearnedmuchmoremoneythanIdidlastyear.2特殊句型1.表示“越来越……”的意思:“比较级+and+比较级”或“moreandmore/lessandless+原级”结构，与这类结构搭配的常用动词有grow,get,become等。Shefeltherselfbecomingmoreandmorenervous.Asthewinterisdrawingnear,it'sgettingcolderandcolder.2.表示两者之间更···the+比较级+ofthetwo+名词。Janeisthetallerofthetwochildreninourfamily.3.表示“越……，越……”:“the+比较级……，the+比较级……”，Themoremagazinesyousell,themoremoneyyouwillget.4.“否定+比较级”相当于最高级。—Waituntilwegetasatisfactoryreply,willyou?—Icouldn'tagreemore.Theideasoundsgreattome.5.“a+比较级+名词（than．．．）”结构常出现在以never构成的完成时态的动词后面。Howbeautifullyshesings！Ihaveneverheardabettervoice.6.倍数表示法：．．．timesas+形容词原级+as．．．；．．．times+形容词比较级+than．．．；．．．timesthe+性质名词+of．．．。Thedininghallisthreetimesaslargeasthatone.Thedininghallisthreetimeslargerthanthatone.Thedininghallisthreetimesthesizeofthatone.注意事项1.为了避免重复,常用theone代替单数可数名词,theones,those代替复数名词,that代替单数或不可数名词。2.当比较对象属于同一范围时，需使用other来排除自身，否则会造成与自身相比较的矛盾。3CanadaislargerthananyothercountryinNorthAmerica.3.“no+形容词的比较级+than”结构表达对两者均否定。Don'tbeproudsoearly.Youarenobetterthanme．4.比较级前面可以用even,still,yet,any,much,alittle,alot,byfar等修饰语用以加强语气或表示比较程度。Totellyouthetruth,myboyfriendismucholderthanme.