词形变换词尾双写课件

什么情况下双写词尾辅音字母再加后缀？1.1个元音字母+1个辅音字母结尾的单词2.最后一个音节重读3.注意少数例外(特别注意以Y结尾的单词)1.sit2.listenseatbegin3.fit4.wetfixnew5.equipquitquitted,quittingequipped,equippingsittingseatinglisteningbeginningfittingfittedfixingfixedwetterneweringingingedereding口诀：一对一+重读音节，X和字母组合除Y第1页/共15页一对一重读音节X和字母组合除Y一．双写最后一个辅音字母，再加-ing和-ed(注意规则动词的过去式和过去分词),或加er变成名词。或加er变成比较级，加est变成最高级。1.nodkidbidbedforbidspendsend-ingforbiddingspendingsending1.noddingkidding

biddingbedding第2页/共15页一对一重读音节x和字母组合除Y2.banplanrunopenlistenwin…ed,…er2.banned

planned

runranopenedlistenedwinwon2.bannerplanner

runner

openerlistenerwinner第3页/共15页一对一重读音节x和字母组合除Y3.betting,lettinggetting,forgetting,putting,cutting,sitting,hitting,spitting,fitting,quitpatpermitadmitsubmit,babysitbabysitfixingquittingpattingpermittingadmittingsubmitting,-ingbabysitting,fix第4页/共15页一对一重读音节x和字母组合除Y4.blogbegdigjoghug4.blogging,begging,digging,jogging,hugging,第5页/共15页一对一重读音节x和字母组合除Y5.stop,drop,hop,skip,equip,6.rob,comb,climbswim5.stopped,dropped,hopped,skipped,equipped,6.robbed,combed,climbedswim--swam5.stopper,dropper,hopper,skipper,equipment,6.robber,comber,climberswimmereder第6页/共15页一对一重读音节x和字母组合除Y6.occur,prefer,infer,refer,star,char,suffer,differ,6.occurred

preferred,inferred,referred,starred,charred,suffered,differed,6.occurring,preferring,inferring,referring,starring,charring,suffering,differing,eder第7页/共15页一对一重读音节x和字母组合除Y8,双写最后一个辅音字母，再加er,变成比较级，加est变成最高级fat,hot,thin,big,wet,dim,slim,low,new,fatter,hotter,thinner,bigger,wetter,dimmer,slimmer,lower,newer,fattest,hottest,thinnest,biggest,wettest,dimmest,slimmest,lowest,newest,wildwilderwildest第8页/共15页一对一重点辅导x和字母组合除外

三．双写最后一个辅音字母，加y变成形容词sun,funstar,furwindcloudsunnyfunny,furry,windycloudystarrysunnierfunnier,furrier,windiercloudierstarrier比较级第9页/共15页以辅音字母加Y结尾的单词怎样变一。单数变复数babyfamilybeautydiscoveryenergystudykeymonkeyplaybabiesfamiliesbeautiesdiscoveriesenergiesstudieskeysmonkeysplays第10页/共15页以辅音字母加Y结尾的单词怎样变二。动词原形变成单三现burybuyannoycarryplaydestroyconveyprayhurryflystayspystudyburiesbuysannoyscarriesplaysdestroysconveysprayshurriesfliesstaysspiesstudies第11页/共15页以辅音字母加Y结尾的单词怎样变三。形容词副词变比较级和最高级uglydryluckyearlysaltysleepyfriendlywealthyshysunnyangrierhungrierbusierclumsierdirtierdustierhappierlaziermerriernoisieruglierdrierluckierearliersaltiersleepierfriendlierwealthiershyersunnierangryhungrybusyclumsydirtydustyhappylazymerrynoisy第12页/共15页-nesslazybusyhappyexactwildvividcoldmildkindrudecarelessthinwetsadbrightdryshygentlebitterlazinessbusinesshappinessexactnesswildnessvividnesscoldnessmildnesskindnessrudenesscarelessness

thinnesswetnesssadnessbrightnessdrynessshynessgentlenessbitterness第13页/共15页一．双写最后一个辅音字母，再加-ing和-ed(注意规则动词的过去式和过去分词),或加er变成名词。1.nodding,kiddingbidding,bedding,forbid,spend,send2.banning,planning,beginning,running,open,listen,win3.betting,hitting,getting,cutting,letting,putting,sitting,babysit,fix,fitting,forgetting,patting,spitting,quit,permit,admit,submit,4.blogging,begging,digging,jogging,hugging,5.stop,drop,hopping,equip,