三单现在分词变化规律

第三人称单数只要不是I和you,又是只有一个的时候（既可以指一个人也可以指一个物品），就是第三人称单数1、人称代词：he,she,it2、详尽指某一个人：mymother,Julia,Bob,Xiaoling,Ben,Mike等等3、指某一个物品：hisdesk,mydesk,mybook,thepen,aglass（玻璃杯）4、this/that/the/a/one+可数单数名词比方：thistree,thatman,abook,thepicture,onepen动词第三人称单数变化规则（一般现在时）1、一般情况下，动词后边直接加s.比方：work—works，get—gets,read—reads,say—says,play—plays2、以ch,sh,s,x和o结尾的动词,在后边加es。比方：do—does,go—goes,watch—watches,catch—catcheswash—washes,finish—finishes,guess—guesses,fix—fixes3、以“辅音字母+y”（辅音字母为倒数第二个字母，y为最后一个字母）结尾的动词，把y变为i再加es.比方：study-studiestry-triescarry-carriesfly-fliescry-cries4、特别：比方：have—has,be—am/is,*注：英语26个字母中，元音字母为：a,e,i,o,u，剩下的21个全都是辅音字母。第三人称单数用于一般现在时，描述一件经常发生的事，比方含有频度副词（always,usually,often,sometimes,never）的句子,含有every+（day,week,morning,afternoon,evening,night）当句子可否定句也许疑问句时，若是句子含有be动词（is,am,are）或者神情动词（can,could,will,would,must,should,may,might）时,则1用这些词的否定形式（否定句）或把这些词提前（疑问句），若是句子不含有be动词或神情动词，则要使用助动词do来否定或提问,这时候原来的动词要用原形。1)HewatchesTVeverynight.（人称代词）→否定句：Hedoesn’twatchTVeverynight.（没有be动词或神情动词，用do。主语是第三人称单数，do→does）→一般疑问句：DoeshewatchTVeverynight?→特别疑问句：Whatdoeshedoeverynight?HowoftendoeshewatchTV?（他多久看一次电视？）2)Shelikesdrawingpictures.（人称代词）→否定句：Shedoesn’tlikedrawingpictures.→一般疑问句：Doesshelikedrawingpictures?→特别疑问句：Whatdoesshelike?What’sherhobby?3)Itisusuallyrainyandcoldinwinter.（人称代词）→否定句：Itisn’tusuallyrainyandcoldinwinter.→一般疑问句：Isitusuallyrainyandcoldinwinter?4）Lilygoestoschoolbybus.（详尽人名）→否定句：→一般疑问句：5)Maths（数学）ismyfavouritesubject.（科目）→否定句：→一般疑问句：6）Mymothergoestoworkbycar.（单数的人）→否定句：→一般疑问句：7）Thisismyteacher.(this)→否定句：→一般疑问句：28）Thatisatree.(that)9)Theredbookisourteacher’s.（物品）动词现在分词变化规则1、一般情况下，动词后边直接加ing比方：work—working,read—reading,say—saying,play—playing,study—studying,try—trying,fly—flying,do—doing,go—going,watch—watching,wash—washing,guess—guessing,sing—singing,ring—ringing2、以“辅音字母+e”结尾的动词，把e去掉后再加ing比方：dance—dancing,drive—driving,give—giving,hope—hoping,take—taking，come—coming,live—living3、重读闭音节：双写最后的辅音再加ing比方：sit—sitting,run—running,put—putting,shop—shopping,get—getting,forget—forgetting,begin—beginning,prefer—preferring4、特别:比方：lie—lying,die—dying动词的现在分词用于现在进行时(am/is/are+doing)也许like/love/start/begin/finish等后边的动词1)Thedogisrunning.（现在时）2)Iamdoingmyhomeworkinmybedroom.（现在时）3)Look,theyareplayingfootballintheplayground.（现在时）Ilikereadingbooks.Myhobbyisdrawing.Mikelovesswimming.7)Let’sstart(=begin)cooking!38)DoesJuliafinishdoingherhomework？神情动词（can,could,will,would,must,should,may,might）后边的动词用原形Icanswimveryfast.Canyoudomyhomework?3)Couldyoupleasegivemethebook?4)Ithi