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1、名词单数变复数What’sthisinEnglish?It’sanapple.Whatarethese?Theyaretwoapples.--Whatarethose?--What’sthat?--It’sapen.--Theyarethreepens.--Whatarethose?--What’sthat?--It’sanEnglishbook.--TheyareEnglishbooks.schoolbagswatchesorangespens--What’rethese?--They’re….mapsboxeskeys--What’rethos
2、e?--They’re….单数复数可数名词如何变化?规则变化不规则变化规则变化1.一般情况下,直接在词尾加-s构成复数形式。carschoolbagcarsschoolbagsbookbooks1.namepencilcardrulernamespencilscardsrulersbox2.以s,x,ch,sh等结尾的名词,在词尾加-es构成复数形式。boxesclassclasseswatchwatchesbrushbrushessxshch2.busbusesfoxesfox(狐狸)dish(盘子,碟子)dishes3.以“辅音字母+y”结尾的
3、名词,应改y为i,再加-es。familyfamiliescomediescomedy(喜剧)yyld3.boyboysdaydaysoayykeycitiesstrawberrieskeyscity(城市)strawberry(草莓)4.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。knifekniveshalfhalves“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。4.wivesleaveswolveswife(妻子)leaf(树叶)
4、wolf(狼)roof(屋顶)roofsroof“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“树叶”(leaf)把“狼”(wolf)劈成两“半”(half)。巧记:5.以o结尾的名词,有的加-s,有的加-es构成复数形式。photophotosheroestomatoeszooszoo(动物园)tomato(西红柿)hero(英雄)zero→zero(e)s以o结尾的名词,表示无生命事物的名词,词尾加-s,表示有生命事物的名词,词尾加-es。加-es的名词有:potato,tomato,hero巧记:英雄爱吃土豆和西红柿。
5、Sumup: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.5.以f或fe结尾的名词,先将f或fe变为v,再加-es.6.以o结尾的名词,表示无生命事物的名词加-s,表示有生命事物的名词加-es。4.以“元音字母+y”结尾的名词,直接在词尾加-s.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--b
6、ed--hero--family-dictionary--question--leaf--party--country--birdsladiesorangesrulerscatsboysgirlscaseswiveswatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescountriesthis–that–I–you–he/she/it–am/is–thesethoseweyoutheyare单数复数句子单数变复数Thisisabo
7、y.Heisachild.Itisaredwatch.IamaChinese.Itisabus.What’sthis?Theseareboys.Theyarechildren.Theyareredwatches.WeareChinese.Theyarebuses.What’rethese?7.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?名词所有格表示…(某人)的一、表示有
8、生命的名词的所有格1.单数名词词尾加’s,复数名词如果词尾没有s,也要加’s。theboy’sbag那个男孩的书包Mike