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1、名詞單數(shù)變復(fù)數(shù)變化規(guī)則1.一般名詞復(fù)數(shù)是在名詞后面直接加上“s”,如:map→maps,bag→bags,book-books等;2.以s,x,sh,ch結(jié)尾的詞加“es”,如:bus→buses,watch→watches,box-boxes等;3.以f或fe結(jié)尾的名詞變復(fù)數(shù)時(shí),去掉f,fe加ves的名詞有:knife→knivesleaf→leaveswife→wiveslife→livesthief→thieves4.以o結(jié)尾的名詞變復(fù)數(shù)時(shí):a)加s的名詞有(無生命):photo→photos,piano→pianos,radio→radiosb)加es的名詞有(有生命):pota
2、to→potatoestomato→tomatoes5.以輔音字母+y結(jié)尾的詞,變y為i加es,如:baby→babies,family-families,study-studies等;以元音字母+y結(jié)尾的名詞變復(fù)數(shù)時(shí),直接加s變復(fù)數(shù),如monkey→monkeys,holiday→holidays,storey→storeys(樓層);6.oo變ee的單詞:foot-feet,goose-geese,tooth-teeth;7.a變e的單詞:man-men,woman-women,policeman-policemen;8.復(fù)數(shù)與原形一致的單詞:fish-fish,sheep-shee
3、p,deer-deer,Chinese-Chinese,動(dòng)詞ing形式的用法及變化規(guī)則一.動(dòng)詞現(xiàn)在分詞由動(dòng)詞原形在詞尾加ing構(gòu)成,其規(guī)則如下:?1)一般情況下直接加ing????think---thinking?????sleep---sleeping????????????????????????????study---studying???speak---speaking????????????????????????????carry---carrying?????say---saying2)以不發(fā)音的字母e結(jié)尾的單詞,去掉字母e,再加ing?wake---waking????m
4、ake---making????come---coming?take---taking??????leave---leaving????have---having?3)以重讀閉音節(jié)結(jié)尾,呈現(xiàn)“輔音,元音(aeiou),輔音”結(jié)構(gòu)的動(dòng)詞,先雙寫末尾的輔音字母,再加ing?。這類詞有:shop,begin,cut,put,get,hit,run,set,sit,spit,stop,swim,beg,drop,fit,nod,dig,forget,regret,rid,?等。???4)以ie結(jié)尾的動(dòng)詞,把ie改為y?,再加ing如:die---dying?????lie---lying?動(dòng)詞的
5、第三人稱單數(shù)現(xiàn)在式變化規(guī)則:1)一般由動(dòng)詞原形加-s???get-gets????????play-plays??2)以e結(jié)尾的動(dòng)詞,加-s???like-likes?????make-makes??3)以o結(jié)尾的動(dòng)詞加-es???go-goes???do-does???????以s,?x,?ch,?sh等字母結(jié)尾的動(dòng)詞,后面加-es???kiss-kisses?????fix-fixes????teach-teaches????fish-fishes??4)以輔音字母加y結(jié)尾的動(dòng)詞,先將y變i,?再加-es??fly-flies?????study-studies?5)?have?–h
6、as