七年級(jí)上冊(cè)名詞單數(shù)變復(fù)數(shù)（課堂PPT）

1、名詞名詞單數(shù)句子單數(shù)句子變變復(fù)數(shù)句子復(fù)數(shù)句子2This is an apple.That is my sister.These are apples.Those are my sisters.3be動(dòng)詞表示動(dòng)詞表示“是是”，有三個(gè)：，有三個(gè)：am ,is, are.我（我（I）用）用am,你你(you )用用are,Is用于他用于他(he)、她、她(she)、它、它(it),單數(shù)后跟單數(shù)后跟is,復(fù)數(shù)人稱全部都用復(fù)數(shù)人稱全部都用are.單數(shù)復(fù)數(shù)weyoutheythesethoseIyouhe /she/ itthisthatamareisisisareareareareare4This is

2、 an orange.These are oranges.That is a pencil.Those are pencils.5 This is my grandfather. This is my grandmother. These are my grandparents.This is my mother.This is my father. This is my brother. This is my brother, too.These are my parents. These are my brothers.6把下列句子單數(shù)變成復(fù)數(shù)：把下列句子單數(shù)變成復(fù)數(shù)：1.This is

3、a book.2.That is an orange.3. This is my pencil .4.That is her quilt.5.Is this your watch?6.Is that his dictionary?7.It is my map.8.Thats his ring. These are books.Those are oranges.These are my pencils.Those are her quilts.Are these your watches?Are those his dictionaries?They are maps. Those are h

4、is rings.7把下列句子變成復(fù)數(shù)。1.This is my sister.2. This is her cousin.3. That is his brother.4. That is my grandparent.把下列句子變成單數(shù)。1 These are my friends.2. Those are his parents.3.Those are her sisters.4. These are Li Lings brothers.These are my sisters.These are her cousins.Those are his brothers.Those are

5、my grandparents.This is my friend.That is his parent.That is her sister.This is Li Lings brother.-What are these?-Whats this?-Its a pen.-They are pens.-What are those?-Whats that?-Its an English book.-They are English books.10backpackswatchesorangespens-Whatre these ?-Theyre .11mapscaseskeys-Whatre

6、those ?-Theyre .名詞單數(shù)變復(fù)數(shù)名詞單數(shù)變復(fù)數(shù)( (一一) )規(guī)則變化規(guī)則變化: :1.1.加加s s 2.2.加加s, x, ch, shs, x, ch, sh結(jié)尾的名詞加結(jié)尾的名詞加eses3.3.以輔音字母加以輔音字母加y y結(jié)尾的名詞結(jié)尾的名詞, ,先改先改y y為為i i, , 再加再加eses (mothers, fathers, sisters, brothers)( buses, boxes, watches )( family - families dictionary - dictionaries ) 區(qū)別區(qū)別 key keys boy - boys( (二

7、二) )不規(guī)則變化不規(guī)則變化: :4.單復(fù)數(shù)同形單復(fù)數(shù)同形(不變不變): sheep(綿羊綿羊) deer(鹿鹿) fish(魚魚) 2.man, woman men, women1.加加es:potatoes (土豆土豆) tomatoes (西紅柿西紅柿)Chinese(中國(guó)人中國(guó)人) Japanese(日本人日本人) 6. oo ee： foot(腳腳) tooth(牙齒牙齒) goose(鵝鵝)5. 以以 f / fe結(jié)尾的結(jié)尾的,變變f為為v, 再加再加eswife(妻子妻子) knife (小刀小刀) shelf (架子架子) leaf (葉子葉子) wolf (狼狼)3. chi

8、ld（孩子）孩子） children（男人，婦女）男人，婦女）14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1.在清輔音后讀在清輔音后讀 / s /2.在元音和濁輔音后讀在元音和濁輔音后讀 / z /3.在在/ s / / z / / / / / t / / d /后后 讀讀 / iz /4.在在/ t /后讀后讀/ ts /，在在 / d /后讀后讀 / dz /desks mapsbrothers pensclasses, watches, orangescats, friends 15pen desk key box knife card orange boy frien

9、d parent mother father sister brother son daughter cousin family child man pencil case sheepssssesknivessssssssssssfamilieschildrenmenssheep句子單數(shù)變復(fù)數(shù)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.1. Whats this ? These are books.Those are erasers.They ar

10、e red apples.We are boys.They are teachers.Whatre these ?this that I you he / she / it am / is thesethoseweyoutheyare 單數(shù)單數(shù) 復(fù)數(shù)復(fù)數(shù)18一、寫出下列單詞的復(fù)數(shù)一、寫出下列單詞的復(fù)數(shù) I- 2.am- 3.he 4.pencil- 5.watch- 6.dictionary- 7. man- 8.it- 1.9. parent - 10.boy wearetheypencils watchesdictionaries men they parentsboys19二、句型轉(zhuǎn)換二

11、、句型轉(zhuǎn)換1.This is my mother. 1）變否定句）變否定句 2）變一般疑問(wèn)句，并作肯定回答）變一般疑問(wèn)句，并作肯定回答This is not my mother.Is this your mother ?Yes, it / she is.202.That is a car.1）變否定句）變否定句 2）劃線提問(wèn)）劃線提問(wèn)3) 變復(fù)數(shù)句變復(fù)數(shù)句That is not a car.Whats that?Those are cars.213.Thats an English dictionary.1）變否定句）變否定句 2）變一般疑問(wèn)句，并作否定回答）變一般疑問(wèn)句，并作否定回答That

12、s not an English dictionary.Is that an English dictionary?No, it isnt.224.Her family names Smith.5.My jacket is light blue.6. is, that, brother, my, Dave 組詞成句組詞成句劃線提問(wèn)劃線提問(wèn)劃線提問(wèn)劃線提問(wèn)Whats her family name?What color is your jacket?That is my brother , Dave.句型轉(zhuǎn)換句型轉(zhuǎn)換1.1.Whats this ? Whats this ? 復(fù)數(shù)復(fù)數(shù) Whatr

13、e these ?2.Hes a Chinese boy. 2.Hes a Chinese boy. 復(fù)數(shù)復(fù)數(shù)Theyre Chinese boys. 3.This is a bike. 3.This is a bike. 否定句否定句復(fù)數(shù)句復(fù)數(shù)句一般疑問(wèn)句，并作肯定回答一般疑問(wèn)句，并作肯定回答This is not a bike.These are bikes.Is this a bike ?Yes, it is.4.4.That is my brother.That is my brother. 否定句否定句一般疑問(wèn)句，并作否定回答一般疑問(wèn)句，并作否定回答That is not my brother