名词单数变复数,名词单数变复数 (一)规则变化: 1.加s,2.以s, x, ch, sh结尾的名词加es,3.以辅音字母加y结尾的名词,先改y为i, 再加es,(mothers, fathers, sisters, brothers),( buses, boxes, watches ),( family - families dictionary - dictionaries ),区别 key keys boy - boys,(二)不规则变化:,4.单复数同形(不变): sheep(绵羊) deer(鹿) fish(鱼),2.man, woman men, women,1.加es:potatoes (土豆) tomatoes (西红柿),Chinese(中国人) Japanese(日本人),6. oo ee： foot(脚) tooth(牙齿) goose(鹅),5. 以 f / fe结尾的,变f为v, 再加es,wife(妻子) knife (小刀) shelf (架子) leaf (叶子) wolf (狼),3. child（孩子） children,（男人，妇女）,名词单数变复数后s / es 的读音 1.在清辅音后读 / s / 2.在元音和浊辅音后读 / z / 3.在/ s / / z / / / / / t / / d /后 读 / iz / 4.在/ t /后读/ ts /，在 / d /后读 / 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,this that I you he / she / it am / is ,these,those,we,you,they,are,单数 复数,一、写出下列单词的复数 I- 2.am- 3.he 4.pencil- 5.watch- 6.dictionary- 7. man- 8.it- 9. parent - 10.boy,we,are,they,pencils,watches,dictionaries,men,they,parents,boys,