(英語新目標(biāo)七年級上：名詞單數(shù)變復(fù)數(shù)專練課件新

1、Huan Caolin Middle School -Ang Guanhuan名詞名詞單數(shù)單數(shù)和和復(fù)數(shù)復(fù)數(shù)可數(shù)名詞和不可數(shù)名詞可數(shù)名詞和不可數(shù)名詞可數(shù)名詞可數(shù)名詞（1）（2）（3）（4）定義：是定義：是可以可以計數(shù)的名詞。計數(shù)的名詞?？蓴?shù)名詞前可數(shù)名詞前可以可以用用 a , an 限定。限定。 可數(shù)名詞前可數(shù)名詞前可以可以用用 one, two , three 限定。限定?？蓴?shù)名詞可數(shù)名詞有有復(fù)數(shù)形式。復(fù)數(shù)形式。連系動詞be 是表示謂語關(guān)系的動詞，在一般現(xiàn)在時中，be動詞有三種形式am(用在第一人稱單數(shù)，即I后），is（用在第三人稱單數(shù)，即he,she ,it后），are(用在第二人稱you以

2、及第一、第三人稱復(fù)數(shù)we、they后）。 含有be動詞的一般現(xiàn)在時的疑問句是將be 動詞提到句首，否定句是在be 動詞后加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 n

3、ame _Jack.9.How _ you? I _ fine,thanks.isisareareisisisisisisisareareamisaream可數(shù)名詞和不可數(shù)名詞可數(shù)名詞和不可數(shù)名詞不可數(shù)名詞不可數(shù)名詞（1）（2）（3）（4）定義：是指定義：是指不能不能計數(shù)的名詞。計數(shù)的名詞。不可數(shù)名詞前不可數(shù)名詞前不可以不可以用用 a , an 限定。限定。 不可數(shù)名詞前不可數(shù)名詞前不可以不可以用用 one, two , three 限定。限定。不可數(shù)名詞不可數(shù)名詞沒有沒有復(fù)數(shù)形式。復(fù)數(shù)形式。-What are those?-Whats that?-Its an English book.-T

4、hey are English books.-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?-T

5、hey are watches.-Whats 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 .strawberri

6、esdictionaries-Whatre these ?-Theyre .-Whatre those ?-Theyre .mapsbackpacksbooks單數(shù)復(fù)數(shù)可數(shù)名詞如何變化？規(guī)則變化不規(guī)則變化規(guī)則變化規(guī)則變化1.一般情況下，直接在詞尾加-s構(gòu)成復(fù)數(shù)形式。pencardrulernamespenscardsrulersbox2. 以s, x, ch, sh等結(jié)尾的名詞， 在詞尾加-es構(gòu)成復(fù)數(shù)形式。boxesclassclasseswatchwatchesbrushbrushes（刷）sxShch2.bus

7、busesfoxesfox(狐貍)dish(盤子)dishes3. 以“輔音字母+y”結(jié)尾的名詞，應(yīng)改y為i，再加es。familyfamiliesdictionariesdictionarystrawberrystrawberrieskeycitiesstrawberrieskeyscity(城市)strawberry(草莓)4.以O(shè)結(jié)尾的名詞：表示無生命事物的名詞，詞尾加-s,表示有生命事物的名詞，詞尾加-es。 加-es的名詞有: potatoes, tomatoes, heroes巧記:英雄愛吃英雄愛吃 土豆燉西紅柿土豆燉西紅柿。其他：photos, zoos等5.以“元音字母+y”結(jié)

8、尾的名詞，直接在詞尾加-s構(gòu)成復(fù)數(shù)形式 。boyboysdaydaysoayy5. 以f或fe結(jié)尾的名詞，先將f或fe變成v，再加-es構(gòu)成復(fù)數(shù)形式。knifekniveshalfhalves6.wivesleaveswolveswife(妻子)leaf(樹葉)wolf(狼)roof(屋頂)roofsroof“小偷”(thief)的“妻子”(wife)用“刀子”(knife)和“樹葉”(leaf)把“狼”(wolf)劈成兩“半”(half)。巧記： Sum up:P951.一般情況下,直接在名詞詞尾加-s.2.以s,x,sh,ch結(jié)尾的名詞,在詞尾加-es. 3.以輔音字母加y結(jié)尾的名詞，要變

9、y為i再加-es.以“元音字母+y”結(jié)尾的名詞，直接在詞尾加-s .4.以o結(jié)尾的名詞,表示無生命事物的名詞加-s,表示有生命事物的名詞加-es。名詞單數(shù)變復(fù)數(shù)后名詞單數(shù)變復(fù)數(shù)后s / es 的讀音的讀音desks mapsrulers pensclasses, watches, orangescats, friends / s / z / iz / dz /1.在清輔音后讀在清輔音后讀2.在元音和濁輔音后讀在元音和濁輔音后讀3.在在/ s / / z / / / t / / d / 后讀后讀4.在在/ t /后讀后讀/ ts /，在，在 / d /后讀后讀給下列可數(shù)名詞加復(fù)數(shù) * bird-

10、 card- *lady- orange- ruler- photo- friend- boy- watch- girl- case- *cat- *wife- * tree- key- bed- * hero- family- dictionary- question- * leaf- *party- *cup-birdsladiesorangesrulerscatsboysgirlscaseswiveswatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescupsthis

11、that I you he / she / it am / is thesethoseweyoutheyare 單數(shù)單數(shù) 復(fù)數(shù)復(fù)數(shù)句子單數(shù)變復(fù)數(shù)句子單數(shù)變復(fù)數(shù)1. This is a book. 2. That is an eraser.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 ?復(fù)數(shù)句子變單數(shù)