名词单数变复数课件

人的差异在于业余时间名词单数变复数名词单数变复数人的差异在于业余时间名词单数变复数Welcome!名词单数变复数oneboat

boats/s/boats/ts/acartwocars/z/onepentwopensWhat’sthis?Whatarethese?Sumup:一般情况下,直接在名词词尾加S.It’sapen.Theyarepens.abusbuses/׀z/awatchtwowatchesafishsomefishesaboxthreeboxesSumup:以s、x、ch、sh结尾的名词,在其词尾加espotatosomepotatoestomatofivetomatoesSumup:以Ｏ字母结尾的名词，有生命的在其词尾加es.无生命的加s。knifefourknivesleafsomeleavesSumup:以f或fe结尾的名词要将f或fe变为V再加es.babyfivebabiesboythreeboys以辅音字母加y结尾的名词，要变y为i再加es.--Whatarethose?--What’sthat?--It’sanEnglishbook.--Theyare

Englishbooks.--Whatarethose?--What’sthat?--It’samap.--Theyare

maps.What’sthisinEnglish?It’sanapple.Whatarethese?Theyaretwoapples.--Whatarethese?--What’sthis?--It’sapen.--Theyare

pens.--Whatarethese?--What’sthis?--It’saruler.--Theyare

rulers.--What’sthis?It’sawatch.--Whatarethese?--Theyare

watches.--What’sthis?It’satomato.--Whatarethese?--Theyare

tomatoes.--What’sthis?It’sastrawberry.--Whatarethese?--Theyare

strawberries.--What’sthis?It’sadictionary.--Whatarethese?--Theyare

dictionaries.orangespens--What’rethese?keys--They’re….watchestomatoes--What’rethese?--They’re….strawberriesdictionaries--What’rethese?--They’re….--What’rethose?--They’re….mapsbackpacksbooks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。mapbackpackmapsbackpacksbookbooks1.namepencardrulernamespenscardsrulersbox2.以s,x,ch,sh等结尾的名词，

在词尾加-es构成复数形式。boxesclassclasseswatchwatchesbrushbrushes（刷）sxShch2.busbusesfoxesfox(狐狸)dish(盘子)dishes3.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)

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，Negro巧记:

黑人英雄爱吃土豆西红柿。4.以“辅音字母+y”结尾的名词，应改y为i，再加es。familyfamiliesdictionariesdictionarystrawberrystrawberries以“元音字母+y”结尾的名词，直接在词尾加-s构成复数形式。boyboysdaydaysoayykeycitiesstrawberrieskeyscity(城市)strawberry(草莓)5.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。knifekniveshalfhalves5.wivesleaveswolveswife(妻子)leaf(树叶)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：Sumup:P951.一般情况下,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.以“元音字母+y”结尾的名词，直接在词尾加-s.4.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。名词单数变复数后s/es的读音desksmapsrulerspensclasses,watches,orangescats,friends

/s//z//iz//dz/1.在清辅音后读2.在元音和浊辅音后读3.在/s//z//∫//t∫//d/后读4.在/t/后读/ts/，在/d/后读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--question--*leaf--*party--*cup--birdsladiesorangesrulerscatsboysgirlscaseswiveswatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescupsthis–that–I–you–he/she/it–am/is–

thesethoseweyoutheyare单数复数将下列单词变为复数形式：Iweshetheyisarethisthesehetheyamarethatthoseittheyorangeorangesbusbusesclassclassespencilpencils将下列句子变为复数形式：Iamastudent.Wearestudents.Thisisaneraser.Theseareerasers.Itisacar.Theyarecars.Heisateacher.Theyareteachers.Thatisabus.Thosearebuses.Isthatacellphone?Arethosecellphones?Yes,itis.Yes,theyare.将下列句子变成复数形式１．Thisisabook.2.Itisagooderaser.3.Thatisnotanapple.4.Issheyourgoodfriend?Yes,sheis.Thesearebooks.Theyaregooderasers.Thosearenotapples.Aretheyyourgoodfriends?Yes,theyare.句子单数变复数Thisisabook.Thatisaneraser.Itisaredapple.Iamaboy.He/Sheisateacher.What’sthis?

Thesearebooks.Thoseareerasers.Theyareredapples.Weareboys.Theyareteachers.What’rethese?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?Thankyou!