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

练习：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__________

今天就和大家就分享到这，祝愿同学们用辛勤的汗水去收获美好的未来吧！