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
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__________

二．动词三单的变化规则
1．一般情况下，直接加-s，如：cook-cooks, milk-milks
2．以s. x. sh. ch. o结尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes
3．以“辅音字母+y”结尾，变y为i, 再加-es，如：study-studies
练习:
写出下列动词的第三人称单数
drink ________ go _______ stay ________ make ________
look _________ have_______ pass_______  carry ____
come________   watch______ plant_______ fly ________
study_______ brush________ do_________  teach_______

谢谢你,非常感谢

好东西就得顶~~~~~~

三单不还有不规则的嘛    have-----has

好东西，真是适用时，我刚刚也在归类．名复里再加以o结尾的如：photos, mangoes.

现在复习了,总结的东西正需要呢,谢谢

谢谢,很不错!:handshake

thanks a lot!

A lot of people r walking in and out of my life.
thanks friends giving me warmth
thanks rough making me grow up
thanks the lost
thanks giving...谢谢你啊!哈哈!!

非常感谢