名词单数变复数-七上.ppt

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1、名词单数变复数What’sthisinEnglish?It’sanapple.Whatarethese?Theyaretwoapples.--Whatarethese?--What’sthis?--It’sapen.--Theyarepens.--Whatarethose?--What’sthat?--It’sanEnglishbook.--TheyareEnglishbooks.keysorangespens--What’rethese?--They’re….jacketseggscups--What’rethose?--They’re….单数复数可数名词如何变化？规则变化不规则变化规

2、则变化1.一般情况下,直接在名词词尾加-s.2.以s,x,sh,ch结尾的名词,在词尾加-es.3.以辅音字母加y结尾的名词，要变y为i再加-es.规则变化1.一般情况下，直接在词尾加-s构成复数形式。carboycarsboysbookbooksbox2.以s,x,ch,sh等结尾的名词，在词尾加-es构成复数形式。boxesclassclasseswatchwatchesbrushbrushessxshch3.以“辅音字母+y”结尾的名词，应改y为i，再加-es。familyfamiliescomediescomedy(喜剧)yyldboyboysdaydaysoayy不规则变化1

3、.以f或fe结尾的名词，先将f或fe变成v，再加-es构成复数形式。2.以o结尾的名词，有的加-s,有的加-es构成复数形式。heroestomatoestomato(西红柿)hero(英雄)巧记加es的:英雄吃土豆、西红柿。potatoespotato(西红柿)photophotos3、单复数同音同形。asheeptwosheepadeertwodeer4、复数形式没有任何规律man男人—menwoman女人—womenchild孩子—childrenfoot脚—feetthis–that–I–you–he/she/it–am/is–thesethoseweyoutheyare单数复数

4、5.几个词的复数形式。名词单数变复数后s/es的读音1.在清辅音后读/s/2.在元音和浊辅音后读/z/3.在/s//z//∫////t//d/后读/iz/4.在/t/后读/ts/，在/d/后读/dz/∫desksmapsbrotherspensclasses,watches,orangescats,friends给下列可数名词加复数．bird--card--lady--orange--ruler--photo--friend--boy--watch--girl--case--cat--wife--tree--key--bed--hero--family-dictionary--quest

5、ion--leaf--party--cup--birdsladiesorangesrulerscatsboysgirlscaseswiveswatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescups复数句子变单数句子Thesearedictionaries.单数一般疑问句,并作肯定回答划线提问Thisisadictionary.Arethesedictionaries?Yes,theyare.Whatarethese?句子单数变复数Thisisabook.Thatis

6、aneraser.Itisaredapple.Iamaboy.He/Sheisateacher.What’sthis?Thesearebooks.Thoseareerasers.Theyareredapples.Weareboys.Theyareteachers.What’rethese?Thankyou!