名詞單數(shù)變復數(shù)

1、名詞單數(shù)變復數(shù),劍閣縣普廣小學校 李思君,a pen.,three pens.,a book,four books,1:一般情況下，直接在詞尾加-s構成復數(shù)形式,two watches,a watch,a box,some boxes,a bus,four buses,a fish,two fishes,2:以s, x, ch, sh等結尾的名詞，在詞尾加-es構成復數(shù)形式。,a baby,four babies,

2、a boy,three boys,3:以輔音字母+y結尾的名詞,先改y為i, 再加es.,:以元音字母+y 結尾的名詞，直接加 s,,,a potato,some potatoes,a tomato,tomatoes,4.以 o結尾的名詞變復數(shù)時有生命的加es 無生命的加s,photo--photos,zoo--zoos,無生命的加s,有生命的加es,a knife,five knives,a leaf,some leav

3、es,5: 以f或fe結尾的名詞，先將f或fe變成v，再加-es.,man, woman men, women,,policeman-----policemen,（男人，婦女）,以man結尾的，變復數(shù)時變成men,6,7.特殊單詞,child--children tooth--teeth foot --feet sheep--sheep people--people,Get it?,Let's

4、 try!快速說出下列單詞的復數(shù)形式。,pen desk key box knife card orange boy friend parent mother father

5、 sister brother son daughter cousin family child man pencil case

6、sheep,s,s,s,s,es,knives,s,s,s,s,s,s,s,s,s,s,s,families,children,men,s,sheep,summary：1.一般可數(shù)名詞變復數(shù)直接加s,2.以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,,以元音字母加y結尾的名詞，直接加 s,4.以o結尾的名詞加es:,無生命的在詞尾加s,有生命的加es,5. 以f或fe結尾的名詞，先