英语单词变形规则汇总.ppt
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英语单词变形规则汇总.ppt
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变形规则可数名词的复数形式可数名词才有复数形式可数名词才有复数形式不不可可数数名名词词主主要要是是抽抽象象名名词词和和物物质名词,做主语时谓语用单数质名词,做主语时谓语用单数集集体体名名词词没没复复数数形形式式但但做做主主语语时时谓语通常用复数谓语通常用复数statesman,mouse,mosquito,monkey,passer-by,watch,button,brochure,universitystatesmen,mice,mosquitoes,monkeys,passers-by,watches,buttons,brochures,universities1.一般在一般在词尾加尾加-smap-maps,bridge-bridges2.以以-s,-x,-sh,-ch结尾的加尾的加-esglass-glasses,brush-brushes3.以以o结尾的有生命的名尾的有生命的名词后加后加-eshero-heroes,potato-potatoes以以o结尾尾的的无无生生命命的的名名词以以及及-oo结尾尾的的词后加后加-spiano-pianos,zoo-zoos4.以以辅音音加加y结尾尾的的词变y为i加加es;以以元元音音加加y结尾的尾的词直接加直接加sfactory-factories;boy-boys5.以以-f或或-fe结尾尾的的词,把把-f,-fe改改为V,再再加加-eswolf-wolves,leaf-leaves有的以有的以-f,-fe结尾的尾的词,可以直接加,可以直接加-sbelief-beliefs,roof-roofs不规则变化1.bacterium-bacteria;medium-media;criterion-criteriaphenomenon-phenomena2.businessman-businessmenpoliceman-policemenpostman-postmensalesman-salesmenspokesman-spokesmenstatesman-statesmen3.goose-geese;tooth-teeth;foot-feet4.mouse-mice;ox-oxen;child-childrendeer-deer;fish-fish;sheep-sheep5.means-means;analysis-analysesstamach-stamachsleaf-leaves;knife-kniveslife-lives;shelf-shelvesthief-thieves;wolf-wolves动词的单三变写出下列动词的单数第三人称形式写出下列动词的单数第三人称形式1.swim2.draw3.make4.run5.carry6.leave7.arrive8.watch9.clean10.stay写出下列动词的单数第三人称形式写出下列动词的单数第三人称形式1.swims2.draws3.makes4.runs5.carries6.leaves7.arrives8.watches9.cleans10.stays动词的的第第三三人人称称单数数规则当当主主语是是第第三三人人称称(she、he、it)或或名名词时,谓语动词要要用用单数数形形式式。
一一般般情情况况下下动词的的第第三三人人称称单数数形形式式都都是直接加是直接加s动词单数形式:
数形式:
1、动词以以ch、sh、o、s、x结尾尾时,单数形式要数形式要加加es2、动词以元音字母以元音字母+y结尾尾时,在,在y后直接加后直接加s;动词以以辅音字母音字母+y结尾尾时,把,把y变成成i再加再加es3、be动词的的现在在时包括包括am、is、are。
第三人。
第三人称称单数要用数要用is;have的第三人称的第三人称单数是数是has动词的-ed形式写出下列单词的过去式和过去分词写出下列单词的过去式和过去分词1.flow2.stick3.bite4.identify5.receive6.aim7.limit8.yell9.ban10.admit1.flow-flowed-flowed2.stick-stuck-stuck3.bite-bit-bitten4.identify-identified-identified5.receive-received-received6.aim-aimed-aimed7.limit-limited-limited8.yell-yelled-yelled9.ban-banned-banned10.admit-admitted-admitted规则动词的的过去去分分词与与规则动词的的过去去式式的的构构成成规则相同。
相同。
1一般一般动词,在,在词尾直接加尾直接加“ed”work-workedvisit-visited2以以“e”结尾的尾的动词,只在,只在词尾加尾加“d”live-lived3以以“辅音音字字母母+y”结尾尾的的动词,将将“y”变为“i”,再加,再加“ed”study-studied-studied4重重读闭音音节结尾尾,末末尾尾只只有有一一个个辅音音字字母母,双双写写该辅音字母,再加音字母,再加“ed”stop-stopped动词的-ing形式写出下列单词的写出下列单词的-ing形式形式violatewindswallowscanreferquarrelbreathebeginwriteforgivetietry写出下列单词的写出下列单词的-ing形式形式violatingwindingswallowingscanningreferringquarrel(l)ingbreathingbeginningwritingforgivingtyingtrying1.一般在一般在动词末尾直接加末尾直接加ing2.以不以不发音字母音字母e结尾的尾的动词,先去掉,先去掉e,再再加加ing如:
如:
have-having3.以重以重读闭音音节结尾的尾的动词,中,中间只有一只有一个个d短短元音字母,元音字母,词尾只有一个尾只有一个辅音字母音字母,应双写末尾的双写末尾的辅音字母,再加音字母,再加ing如如:
runningbeginningjoggingsittinggetting4.以以ie结尾的尾的动词,把,把ie变成成y再加再加ing,如:
如:
lie-lyingdie-dying形容词,副词的比较级和最高级写出下列形容词的比较级和最高级写出下列形容词的比较级和最高级badcleanfamousdirtybigillheavylittlehappyfarexpensivewellsloweasywidecarefullyearlythinmuchclever写出下列形容词的比较级和最高级写出下列形容词的比较级和最高级bad/ill-worse-theworstclean-cleaner-thecleanestfamous-morefamous-themostfamousdirty-dirtier-thedirtiestbig-bigger-thebiggestheavy-heavier-theheaviestlittle-less-theleasthappy-happier-thehappiestfar-farther/further-thefarthest/furthestexpensive-moreexpensive-themostexpensivewell-better-bestslow-slower-theslowesteasy-easier-theeasiestwide-wider-thewidestcarefully-morecarefully-mostcarefullyearly-earlier-earliestthin-thinner-thethinnestmuch-more-themostclever-cleverer-thecleverest1.单音音节词在在词尾尾加加-er构构成成比比较级,加加-est构构成最高成最高级如:
如:
hard-harder-thehardest2.以以不不发音音的的e结尾尾的的单音音节词直直接接加加-er或或-est,如:
,如:
late-later-thelatest3.以以辅音字母加音字母加y结尾的尾的变y为I加加er或或est:
如如:
easy-easier-theeasiest4.以以一一个个辅音音字字母母结尾尾的的重重读闭音音节词双双写写最最后一个后一个辅音字母再加音字母再加er或或est:
如如:
big-bigger-thebiggest5.多多音音节词前前加加more或或most,副副词最最高高级前前省省略略the.如如:
important-moreimportant-themostimportant6.以以-ly结尾尾的的副副词,除除early外外,其其他他均均使用使用more/most构成比构成比较级和最高和最高级early-earlier-earliestwarm-morewarmly-mostwarmlypatiently-morepatiently-mostpatiently不不规则变化化good/well-better-thebest好好bad/badly/ill-worse-theworst坏坏many/much-more-themost多多little-less-theleast少少old-older/elder-theoldest/theeldest老老,旧旧far-farther/further-thefarthest/thefurthest远请写出下列形容写出下列形容词的副的副词形式形式exactcompletepersonalprobableeasyfrequentfullautomatic形容词变副词1.直接直接+lyquietquietlydifferentdifferentlyconfidentconfidentlybeautifulbeautifullycarefulcarefullyrecentrecently2.以以-le结尾的形容词去结尾的形容词去e+lyterribleterriblypossiblepossiblycomfortablecomfortablygentlegentlysimplesimplyreasonablereasonablyprobableprobablyincredibleincredibly其它以其它以e结尾的形容词直接结尾的形容词直接+lywisewiselynicenicelypolitepolitelyfortunatefortunatelyclosecloselyimmediateimmediatelywidewidelytruetrulywholewhollyfullfullydulldully注意以下形容词变副词的拼写注意以下形容词变副词的拼写3.以以辅音辅音+y结尾的,结尾的,变变y为为i+lyhappyhappilyeasyeasilyangryangrilymerrymerrilyheavyheavilynoisynoisilyhealthyhealthilyluckyluckily4.以以ic结尾的结尾的+allyenergeticenergeticallyautomaticautomaticallyscientificscientificallyeconomiceconomicall
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- 英语单词 变形 规则 汇总
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