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英语比较句型原级的句型①“as+原级形容词/副词+as”的结构，表示前后两者的情况一样1）“A+系动词+as+形容词原级+as+Beg.Billisasfunnyashisfather.Myhandwritingisasbeautifulasyours.我的书法和你的一样好。2）“A+谓语动词+as+副词原级+as+B”eg.LucyspeaksChineseaswellasLily.②在否定句中，用“notas/so+原级形容词as”结构，表示前者不如后者。“A+系动词+notas／so+形容词原级+as+B”eg.Thesebooksaren’tasinterestingasthose.Iamnotas/sobusyasIusedtobe.我没有过去那么忙了。区别：TomisnotastallasMike.TomisnotsotallasMike.“A+助动词／情态动词+not+谓语动词+as／so+副词原级+as+B”eg.Shedidn’tsingsowellthatnightassheusuallydoes.thesame(…)as与……相同/同样You’vemadethesamemistakeasTom.有时thesame可以单独使用：Mymotherismuchyoungerthanyours.Sheisn’t!They’reaboutthesameage.Thosetwodressarethesame.differentfrom与……不同（different前面可加very，much，alittle等修饰语）IsFrenchfoodverydifferentfromItalianfood?We’replanningsomethingdifferentthisyearfromwhatwedidlastyear.常用词组1.asgoodas几乎已经，实际上等于，和……几乎一样Heisasgoodasdead.他跟死了一样。Thesecondhandgeographybookisasgoodasnew.这本二手地理书几乎还是新的。2.assoonas一……就……PleaseletusknowassoonasyouarriveinBeijing.一到北京，请通知我们一声。Assoonasshegothome,shebegancooking.她一到家就开始做饭。3.asmuch/manyas多达……，达到……之多，实际上等于，差不多Someofthestonesevenweighasmuchasfifteentons.有些石块甚至重达15吨。Thenumberofpeoplewholosthomesreachesasmanyas250,000.失去家园的人数多达25万。That’sasmuchastosayhewasathief.那无异于说他曾是个小偷。4.asfaras就……而言，尽……AsfarasIknow,he’llbeawayforthreemonths.就我所知，他将离开三个月。Wewillhelpyouasfaraswecan.我们会尽力帮助你。5.aslongas只要Youcangowhereyoulikeaslongasyougetbackbeforedark.你去哪儿都可以，只要你在天黑前返回。YouwillbehappyaslongasIamliving.只要我活着，你就会幸福。6.asoftenas每当，每次Asoftenashecame,hewouldstaywithusforatime.每次他来，总要和我们呆上一阵子。TheboyalwayssayshellotomeasoftenasImeethim.每次我遇见那个小男孩，他总是向我问好。7.aswellas和，同，既……又……，不仅……而且……Myparentsaswellasmyelderbrotherenjoymusic.我父母亲和我哥哥都喜欢音乐。Heiscleveraswellashardworking.他不仅努力工作而且聪明。8.as…aspossible/onecan尽可能，尽（某人）所能Pleasesweepthefloorascleanaspossible.请把地打扫得尽可能干净。I’llgetbackassoonasIcan.比较级+than…（……比……更……）Thisbridgeislongerthanthatone.Ourschoolislargerthantheirs.比较级+and+比较级（……越来越……）Inspring,thedaysaregettinglongerandlongerTheflowersaremoreandmorebeautiful.The+比较级…，the+比较级…（越……就越……）1）Thesooner，thebetter.2）Themoreyoueat，thefatteryouwillbe.Whichis+比较级，AorB?（A和B，哪一个比较…？）Whichislonger,thisoneorthat?the+最高级+（名词）+in/of/among…在…（范围内）最…1）Tomisthetallestinhisclass.2）Thisappleisthebiggestofthefive.oneofthe+形容词最高级+复数名词表示“……是……中最……之一”。BeijingisoneofthelargestcitiesinChina.Whichis+the+最高级+……?在…（范围内）哪一个最…？Whichisthebiggestofthefiveballs运用比较级表达最高级的概念“比较级+thananyother+名词单数”，“比较级+thantheother+名词复数”或“比较级+thantherestof+the+名词复数”都可表示最高级意义。Juliaistallerthananyothergirlinherclass.Juliaistallerthantheothergirlsinherclass.Juliaistallerthantherestofthegirlsinherclass.以上三句表达的意思等同于最高级的含义：Juliaisthetallestofthegirlsinherclass.朱丽叶是她们班上最高的女生。比较级和最高级的修饰语比较级的修饰语Much（…得多），far（…得多），even（甚至，更），still(更)，abit（有点），alittle（有点），alot（很），agreatdeal(大大地),twice(两倍),fivetimes(五倍),two-fifths(五分之二),ahalf(一半)等修饰比较级表示程度，但决不可用very修饰。eg.TomisalittletallerthanMike.Tom比Mike稍高一点；Itisevencoldertodaythanyesterday.今天甚至比昨天更冷比较结构的同义转换有时，不同的比较结构可以表示相同的意思，因此，它们可以相互转换。1.notas/so…as与less…than的转换Theplacewasnotas/socrowdedasitusuallyisyesterday.Theplacewaslesscrowdedthanitusuallyisyesterday.昨天，这个地方不像平常那样挤满了人。2.more…than与less…than,notas/so…as的转换Yourpictureismorebeautifulthanhis.Hispictureislessbeautifulthanyours.Hispictureisn’tas/sobeautifulasyours.你的画比他的好看。3.最高级与more…than,no…morethan的转换Mathisthemostdifficultsubjectofall.Mathismoredifficultthananyothersubject.Nosubjectismoredifficultthanmath.数学是所有学科中最难的。Exercises•用括号中形容词或副词的适当形式填空1）Thisparkismuch﹍﹍thanthatone.(beautiful)2）I’ma﹍﹍boyinthesun.(happy)3）Whichbookis﹍﹍,yoursormine?(thick)4）Mymotherdrivesas﹍﹍asmyfather.(good)5）Whois﹍﹍thanI,heorshe?(old)6)Hebecomes﹍﹍and﹍﹍．(越来越胖)7)The﹍﹍heis,the﹍﹍hefeels．他越忙就越高兴。8)Thisgardenis﹍﹍as﹍﹍asthatone．(三倍大)morebeautifulhappythickerwelloldestfatterfatterbusierhappierthreetimesbig•用所给的词组翻译句子1.一旦关系有所改善，他们就可以获准离开。(assoonas)Assoonasrelationsimprovetheywillbeallowedtogo.2.据我所知，它仅仅维持了两三年。(asfaras)Itonlylastedacoupleofyears,asfarasIknow.3.只要你离他们远一点,你就会安全.(aslongas)Aslongasyoucankeepawayfromthem,you'resafe.4.选花不仅要观其形还要闻其香。(aswellas)Flowersarechosenfortheirscentaswellastheirlook.•不改变意思，改写下列句型1)LinTaoisthetallestboyinhisclass.LinTaois﹍﹍anyother﹍﹍inhisclass.2）Scienceisnotsointerestingasmusic.Scienceis﹍﹍thanmusic.Musicis﹍﹍thanscience.3)Thisboxis12kg.Thatboxis14kg.Thetwoboxesare__________weight.4）Maryis6yearsold.Lilyis12yearsold.Lily’sageis_________Mary’s.(as…as)Maryis_________thanLily.tallerthanboylessinterestingmoreinterestingthesamethesametwiceasoldasyounger•选择填空（）1.Thisbookis﹍﹍thatone.A.notsointerestingB.moreinterestingthanC.asmoreinterestingasD.interestingthan（）2.Ithinkmathsisnot﹍﹍English.A.easierB.lesseasyC.easyD.soeasyas（）3.Heisoneof﹍﹍inourcountry.A.themostpopularsingerB.themostpopularsingersC.themorepopularsingersD.mostpopularsingers（）4.－Whichdoyouprefer,vegetablesorfruit?－Ipreferfruit﹍﹍vegetables.A.toB.thanC.ofD.and（）5.TheweatherinBeijingisas﹍﹍inShanghaitoday.A.wetterthantheweatherB.wetastheweatherC.wetthanthatD.wetasthatBDBAD6.NoonerunsasfastasJohninhisclass.Thesentencemeans_____.A.Johnrunsfastestinhisclass.B.Johnrun