(英语新目标七年级上：名词单数变复数专练课件新657.pptx

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1、Huan Caolin Middle School -Ang Guanhuan名词名词单数单数和和复数复数可数名词和不可数名词可数名词和不可数名词可数名词可数名词（1）（2）（3）（4）定义：是定义：是可以可以计数的名词。计数的名词。可数名词前可数名词前可以可以用用 a,an 限定。限定。可数名词前可数名词前可以可以用用 one,two,three 限定。限定。可数名词可数名词有有复数形式。复数形式。连系动词be 是表示谓语关系的动词，在一般现在时中，be动词有三种形式am(用在第一人称单数，即I后），is（用在第三人称单数，即he,she,it后），are(用在第二人称you以及第一、第三人

2、称复数we、they后）。含有be动词的一般现在时的疑问句是将be 动词提到句首，否定句是在be 动词后加not.用 is are am填空1.That _ a jacket.It _ red.2.Those_ baseballs.They_ white.3.This _ my quilt.It _red.4.Helen _ a girl,she _ my friend.5.That is Tony.He _ my uncle.6.What _ this?It _a map.7.What _ these?They_ oranges.8.I _ a boy.My name _Jack.9.How

3、 _ you?I _ fine,thanks.isisareareisisisisisisisareareamisaream可数名词和不可数名词可数名词和不可数名词不可数名词不可数名词（1）（2）（3）（4）定义：是指定义：是指不能不能计数的名词。计数的名词。不可数名词前不可数名词前不可以不可以用用 a,an 限定。限定。不可数名词前不可数名词前不可以不可以用用 one,two,three 限定。限定。不可数名词不可数名词没有没有复数形式。复数形式。-What are those?-Whats that?-Its an English book.-They are English books.

4、-What are those?-Whats that?-Its a map.-They are maps.Whats this in English?Its an apple.What are these?They are two apples.-What are these?-Whats this?-Its a pen.-They are pens.-What are these?-Whats this?-Its a ruler.-They are rulers.-Whats this?Its a watch.-What are these?-They are watches.-Whats

5、 this?Its a tomato.-What are these?-They are tomatoes.-Whats this?Its a strawberry.-What are these?-They are strawberries.-Whats this?Its a dictionary.-What are these?-They are dictionaries.orangespens-Whatre these?keys-Theyre .watchestomatoes-Whatre these?-Theyre .strawberriesdictionaries-Whatre th

6、ese?-Theyre .-Whatre those?-Theyre .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)dishes

7、3.以“辅音字母+y”结尾的名词，应改y为i，再加es。familyfamiliesdictionariesdictionarystrawberrystrawberrieskeycitiesstrawberrieskeyscity(城市)strawberry(草莓)4.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:potatoes,tomatoes,heroes巧记:英雄爱吃英雄爱吃 土豆炖西红柿土豆炖西红柿。其他：photos,zoos等5.以“元音字母+y”结尾的名词，直接在词尾加-s构成复数形式。boyboysdaydaysoay

8、y5.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。knifekniveshalfhalves6.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：Sum up: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

9、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。名词单数变复数后名词单数变复数后s/es 的读音的读音desks mapsrulers pensclasses,watches,orangescats,friends/s/z/iz/dz/1.在清辅音后读在清辅音后读2.在元音和浊辅音后读在元音和浊辅音后读3.在在/s/z/t /d /后读后读4.在在/t/后读后读/ts/，在，在/d/后读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-be

10、d-*hero-family-dictionary-question-*leaf-*party-*cup-birdsladiesorangesrulerscatsboysgirlscaseswiveswatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescupsthis that I you he/she/it am/is thesethoseweyoutheyare 单数单数 复数复数句子单数变复数句子单数变复数1.This is a book.2.That is an er

11、aser.3.It is a red apple.4.I am a boy.5.He/She is a teacher.6.Whats this?These are books.Those are erasers.They are red apples.We are boys.They are teachers.Whatre these?复数句子变单数句子复数句子变单数句子 These are These are dictionariesdictionaries.单数单数一般疑问句一般疑问句,并作肯定回答并作肯定回答划线提问划线提问 This is a dictionary.Are these dictionaries?Yes,they are.What are these?演讲完毕，谢谢观看！