1、A,1,名詞的單數(shù)與復(fù)數(shù),1.名詞？ 名詞是表示人與事物名稱的詞，它既可以表示具體的東西，也可以表示抽象的東西。 2.名詞按數(shù)分為： 可數(shù)名詞（單數(shù)和復(fù)數(shù)的相互轉(zhuǎn)化） 不可數(shù)名詞（列出你知道的不可數(shù)名詞）,A,2,常見的不可數(shù)名詞,food-rice bread meat fish drink-water juice coffee tea milk others-advice money people work help glass paper cloth sand soap hope work weather information news 注意：1.不可數(shù)名詞一般沒有復(fù)數(shù)形式，只有單數(shù)形

2、式。 2.不可數(shù)名詞前面不能用不定冠詞a / an 。,A,3,-What are these?,-Whats this?,-Its a pen.,-They are pens.,A,4,-What are those?,-Whats that?,-Its an English book.,-They are English books.,A,5,單數(shù),復(fù)數(shù),可數(shù)名詞,如 何 變 化？,規(guī)則變化,A,6,1.一般情況下，直接在詞尾加-s構(gòu)成復(fù)數(shù)形式。,car,basketball,cars,basketballs,book,books,A,7,box,2. 以s, x, ch, sh等結(jié)尾的名

3、詞， 在詞尾加-es構(gòu)成復(fù)數(shù)形式。,boxes,class,classes,watch,watches,brush,brushes,2.,A,8,3.以“輔音字母+y”結(jié)尾的名詞，變“y”為“i”，再加-es構(gòu)成復(fù)數(shù)形式。,citycities familyfamilies partyparties,A,9,4. 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 。,boy,boys,day,days,.,A,10,5. 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。,knife,knives,wolf,wolves,.,注意：roofroofs,A,11,6.

4、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。,photo,photos,heroes,tomatoes,zoos,.,A,12,以o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: potato, tomato, hero,A,13,Sum up:,1.一般情況下,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.,5.以f或 fe結(jié)尾的名詞，先將f或 fe變?yōu)関,再加-es.,6.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

5、詞加-es。,4.以“元音字母+y”結(jié)尾的名詞，直接在詞尾加-s .,A,14,7.單數(shù)復(fù)數(shù)的不規(guī)則變化 例詞： manmen woman women,A,15,childchildren foot feet,A,16,8、單復(fù)數(shù)同形 ，保持原音。 例詞： fish fish,A,17,sheep sheep cattle cattle deer deer,A,18,給下列可數(shù)名詞加復(fù)數(shù),bird- card- lady- orange- ruler- photo- lady- boy- leaf- mouse- tooth- cat- wife- shelf- key- bus- hero-

6、 Chinese- dictionary- fox - girl- zero- party- cup-,A,19,this that I you he / she / it am / is ,these,those,we,you,they,are,單數(shù) 復(fù)數(shù),A,20,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 apples

7、. We are boys. They are teachers. Whatre these ?,A,21,Pratice,1. We need more_(people)to attend it. 2. There is some_(food) in the basket. 3. _(knife) are used for cutting things. 4.I see you have a few white_(hair) 5.This dress cost me 20_(dollar),A,22,名詞單數(shù)變復(fù)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