三單現(xiàn)在分詞變化規(guī)律

第三人稱單數(shù)只要不是I和you,又是只有一個的時候（既可以指一個人也可以指一個物品），就是第三人稱單數(shù)1、人稱代詞：he,she,it2、詳盡指某一個人：mymother,Julia,Bob,Xiaoling,Ben,Mike等等3、指某一個物品：hisdesk,mydesk,mybook,thepen,aglass（玻璃杯）4、this/that/the/a/one+可數(shù)單數(shù)名詞比方：thistree,thatman,abook,thepicture,onepen動詞第三人稱單數(shù)變化規(guī)則（一般現(xiàn)在時）1、一般情況下，動詞后邊直接加s.比方：work—works，get—gets,read—reads,say—says,play—plays2、以ch,sh,s,x和o結(jié)尾的動詞,在后邊加es。比方：do—does,go—goes,watch—watches,catch—catcheswash—washes,finish—finishes,guess—guesses,fix—fixes3、以“輔音字母+y”（輔音字母為倒數(shù)第二個字母，y為最后一個字母）結(jié)尾的動詞，把y變?yōu)閕再加es.比方：study-studiestry-triescarry-carriesfly-fliescry-cries4、特別：比方：have—has,be—am/is,*注：英語26個字母中，元音字母為：a,e,i,o,u，剩下的21個全都是輔音字母。第三人稱單數(shù)用于一般現(xiàn)在時，描述一件經(jīng)常發(fā)生的事，比方含有頻度副詞（always,usually,often,sometimes,never）的句子,含有every+（day,week,morning,afternoon,evening,night）當(dāng)句子可否定句也許疑問句時，若是句子含有be動詞（is,am,are）或者神情動詞（can,could,will,would,must,should,may,might）時,則1用這些詞的否定形式（否定句）或把這些詞提前（疑問句），若是句子不含有be動詞或神情動詞，則要使用助動詞do來否定或提問,這時候原來的動詞要用原形。1)HewatchesTVeverynight.（人稱代詞）→否定句：Hedoesn’twatchTVeverynight.（沒有be動詞或神情動詞，用do。主語是第三人稱單數(shù)，do→does）→一般疑問句：DoeshewatchTVeverynight?→特別疑問句：Whatdoeshedoeverynight?HowoftendoeshewatchTV?（他多久看一次電視？）2)Shelikesdrawingpictures.（人稱代詞）→否定句：Shedoesn’tlikedrawingpictures.→一般疑問句：Doesshelikedrawingpictures?→特別疑問句：Whatdoesshelike?What’sherhobby?3)Itisusuallyrainyandcoldinwinter.（人稱代詞）→否定句：Itisn’tusuallyrainyandcoldinwinter.→一般疑問句：Isitusuallyrainyandcoldinwinter?4）Lilygoestoschoolbybus.（詳盡人名）→否定句：→一般疑問句：5)Maths（數(shù)學(xué)）ismyfavouritesubject.（科目）→否定句：→一般疑問句：6）Mymothergoestoworkbycar.（單數(shù)的人）→否定句：→一般疑問句：7）Thisismyteacher.(this)→否定句：→一般疑問句：28）Thatisatree.(that)9)Theredbookisourteacher’s.（物品）動詞現(xiàn)在分詞變化規(guī)則1、一般情況下，動詞后邊直接加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“輔音字母+e”結(jié)尾的動詞，把e去掉后再加ing比方：dance—dancing,drive—driving,give—giving,hope—hoping,take—taking，come—coming,live—living3、重讀閉音節(jié)：雙寫最后的輔音再加ing比方：sit—sitting,run—running,put—putting,shop—shopping,get—getting,forget—forgetting,begin—beginning,prefer—preferring4、特別:比方：lie—lying,die—dying動詞的現(xiàn)在分詞用于現(xiàn)在進(jìn)行時(am/is/are+doing)也許like/love/start/begin/finish等后邊的動詞1)Thedogisrunning.（現(xiàn)在時）2)Iamdoingmyhomeworkinmybedroom.（現(xiàn)在時）3)Look,theyareplayingfootballintheplayground.（現(xiàn)在時）Ilikereadingbooks.Myhobbyisdrawing.Mikelovesswimming.7)Let’sstart(=begin)cooking!38)DoesJuliafinishdoingherhomework？神情動詞（can,could,will,would,must,should,may,might）后邊的動詞用原形Icanswimveryfast.Canyoudomyhomework?3)Couldyoupleasegivemethebook?4)Ithi