一、名词复数规则

　　1.一般情况下，直接加-s，如：book-books, bag-bags, cat-cats, bed-beds

　　2.以s. x. sh. ch结尾，加-es，如：bus-buses, box-boxes, brush-brushes, watch-watches

　　3.以“辅音字母+y”结尾，变y为i, 再加-es，如：family-families, strawberry-strawberries

　　4.以“f或fe”结尾，变f或fe为v, 再加-es，如：knife-knives

　　5.不规则名词复数：

　　man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-mice

　　child-children

　　foot-feet,.tooth-teeth

　　fish-fish, people-people, Chinese-Chinese, Japanese-Japanese

　　二、练习题

　　写出下列各词的复数

　　I _________him _________this ___________her ______

　　watch _______child _______photo ________diary ______

　　day________ foot________ book_______ dress ________

　　tooth_______ sheep ______box_______ strawberry _____

　　thief _______yo-yo ______ peach______ sandwich ______

　　man______ woman_______ paper_______ juice___________

　　water________ milk________ rice__________ tea__________