1、Welcome !名詞單數(shù)變復(fù)數(shù)可數(shù)名詞和不可數(shù)名詞可數(shù)名詞（1）（2）（3）（4）定義：是可以計數(shù)的名詞?？蓴?shù)名詞前可以用 a , an 限定。 可數(shù)名詞前可以用 one, two , three 限定。可數(shù)名詞有復(fù)數(shù)形式。可數(shù)名詞和不可數(shù)名詞不可數(shù)名詞（1）（2）（3）（4）定義：是指不能計數(shù)的名詞。不可數(shù)名詞前不可以用 a , an 限定。 不可數(shù)名詞前不可以用 one, two , three 限定。不可數(shù)名詞沒有復(fù)數(shù)形式。one boat boats/ s / boats/ ts/a cartwo cars/ z /one pentwo pensWhats this?What are

2、 these?Sum up:一般情況下,直接在名詞詞尾加S.Its a pen.They are pens.a busbuses/z /a watchtwo watchesa fishsome fishesa boxthree boxesSum up:以s、x 、ch 、sh結(jié)尾的名詞,在其詞尾加espotatosome potatoestomatofive tomatoesSum up: 以字母結(jié)尾的名詞，有生命的在其詞尾加es.無生命的加s。knifefour knivesleafsome leavesSum up:以f或fe結(jié)尾的名詞要將f或fe變?yōu)閂再加es.babyfivebabie

3、sboythreeboys以輔音字母加y結(jié)尾的名詞，要變y為i再加es.-What are those?-Whats that?-Its an English book.-They 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 the

4、se?-Whats this?-Its a ruler.-They are rulers.-Whats this?Its a watch.-What are these?-They 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.o

5、rangespens-Whatre these ?keys-Theyre .watchestomatoes-Whatre these ?-Theyre .strawberriesdictionaries-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,

6、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.busbusesfoxesfox(狐貍)dish(盤子)dishes3. 以o結(jié)尾的名詞，有的加-s, 有的加-es構(gòu)成復(fù)數(shù)形式。photophotosheroestomatoeszooszoo(動物園)tomato(西紅柿)hero(英雄)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: potato, tomato, hero，Negro巧記:黑人英雄愛吃 土豆西紅柿。4. 以“輔音字母+y

7、”結(jié)尾的名詞，應(yīng)改y為i，再加es。familyfamiliesdictionariesdictionarystrawberrystrawberries以“元音字母+y”結(jié)尾的名詞，直接在詞尾加-s構(gòu)成復(fù)數(shù)形式 。boyboysdaydaysoayykeycitiesstrawberrieskeyscity(城市)strawberry(草莓)5. 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。knifekniveshalfhalves5.wivesleaveswolveswife(妻子)leaf(樹葉)wolf(狼)roof(屋頂)roofsroof“小偷”(thief)的

8、“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s / es 的讀音desks mapsrulers pensclasses, watches, orangescats, friends / s / z / iz / dz

9、 /1.在清輔音后讀2.在元音和濁輔音后讀3.在/ s / / z / / / t / / d / 后讀4.在/ t /后讀/ ts /，在 / d /后讀給下列可數(shù)名詞加復(fù)數(shù) * bird- card- *lady- orange- ruler- photo- friend- boy- watch- girl- case- *cat- *wife- * tree- key- bed- * hero- family- dictionary- question- * leaf- *party- *cup-birdsladiesorangesrulerscatsboysgirlscaseswive

10、swatchestreeskeysquestionsbedsheroesfriendsfamiliesdictionariesphotoscardsleavespartiescupsthis that I you he / she / it am / is thesethoseweyoutheyare 單數(shù) 復(fù)數(shù)將下列單詞變?yōu)閺?fù)數(shù)形式：Iweshetheyisarethisthesehetheyamarethatthoseittheyorangeorangesbusbusesclassclassespencilpencils將下列句子變?yōu)閺?fù)數(shù)形式：I am a student.We are s

11、tudents.This is an eraser.These are erasers.It is a car.They are cars.He is a teacher.They are teachers.That is a bus.Those are buses.Is that a cell phone?Are those cell phones?Yes, it is.Yes, they are.將下列句子變成復(fù)數(shù)形式This is a book.2. It is a good eraser.3.That is not an apple.4.Is she your good friend? Yes, she is.These are books.They are good erasers.Those are not apples.Are they your good friends? Yes, they are.句子單數(shù)變復(fù)數(shù)This is a book. That is an eraser.It is a red apple. I am a boy.He / She is a teacher.Whats this ? These are books.Those are erasers.They are red appl