七年級上冊名詞單數(shù)變復數(shù).ppt

1、名詞單數(shù)句子變復數(shù)句子,This is an apple.,That is my sister.,be動詞表示“是”，有三個：am ,is, are. 我（I）用am, 你(you )用are, Is用于他(he)、她(she)、它(it), 單數(shù)后跟is,復數(shù)人稱全部都用are.,單數(shù),復數(shù),we you they these those,I you he /she/ it this that,am are is is is,are are are are are,This is an orange.,These are oranges.,That is a pencil.,Those ar

2、e pencils.,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.,把下列句子單數(shù)變成復數(shù)：,1.This is a book.,2.That is an orange.,3. This is my pencil .,4.That is h

3、er 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 his rings.,把下列句子變成復數(shù)。 1.This is my sister. 2. This

4、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 my grandparents. This is my friend. T

5、hat 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.,backpacks,watches,oranges,pens,-Whatre these ? -Theyre .,maps,cases,keys,-Whatre those ? -Theyre .,名

6、詞單數(shù)變復數(shù) (一)規(guī)則變化: 1.加s,2.加s, x, ch, sh結尾的名詞加es,3.以輔音字母加y結尾的名詞,先改y為i, 再加es,(mothers, fathers, sisters, brothers),( buses, boxes, watches ),( family - families dictionary - dictionaries ),區(qū)別 key keys boy - boys,(二)不規(guī)則變化:,4.單復數(shù)同形(不變): sheep(綿羊) deer(鹿) fish(魚),2.man, woman men, women,1.加es:potatoes (土豆)

7、tomatoes (西紅柿),Chinese(中國人) Japanese(日本人),6. oo ee： foot(腳) tooth(牙齒) goose(鵝),5. 以 f / fe結尾的,變f為v, 再加es,wife(妻子) knife (小刀) shelf (架子) leaf (葉子) wolf (狼),3. child（孩子） children,（男人，婦女）,名詞單數(shù)變復數(shù)后s / es 的讀音 1.在清輔音后讀 / s / 2.在元音和濁輔音后讀 / z / 3.在/ s / / z / / / / / t / / d /后 讀 / iz / 4.在/ t /后讀/ ts /，在 /

8、 d /后讀 / dz /,desks maps,brothers pens,classes, watches, oranges,cats, friends,pen desk key box knife card orange boy friend parent mother father sister brother son daughter cousin family child man pencil case sheep,s,s,s,s,es,knives,s,s,s,s,s,s,s,s,s,s,s,families,children,men,s,sheep,句子單數(shù)變復數(shù) This i

9、s 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 apples. We are boys. They are teachers. Whatre these ?,this that I you he / she / it am / is ,these,those,we,you,they,are,單數(shù) 復數(shù),一、寫出下列單詞的復數(shù) I- 2.am- 3.he 4

10、.pencil- 5.watch- 6.dictionary- 7. man- 8.it- 9. parent - 10.boy,we,are,they,pencils,watches,dictionaries,men,they,parents,boys,二、句型轉換 1.This is my mother.,1）變否定句 2）變一般疑問句，并作肯定回答,This is not my mother. Is this your mother ? Yes, it / she is.,2.That is a car.,1）變否定句 2）劃線提問 3) 變復數(shù)句,That is not a car.

11、Whats that? Those are cars.,3.Thats an English dictionary.,1）變否定句 2）變一般疑問句，并作否定回答,Thats not an English dictionary. Is that an English dictionary? No, it isnt.,4.Her family names Smith. 5.My jacket is light blue. 6. is, that, brother, my, Dave 組詞成句,劃線提問,劃線提問,Whats her family name? What color is your jacket? That is my brother , Dave.,句型轉換 1.Whats this ? 復數(shù),Whatre these ?,2.Hes a Chinese boy. 復數(shù),Theyre Chinese boys.,3.This is a bike. 否定句 復數(shù)句 一般疑問句，并作肯定回答,This is not a bike. These are bikes. Is this a bike ? Yes, it is.,4.That is my brother.,否定句 一般疑問句，并作否定回答,That