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 _______ book_______

child _______ photo ________ diary ______ day________ foot________ dress ________ tooth_______ sheep ______ box_______ strawberry _____ thief _______yo-yo ______ peach______ sandwich ______ man______ woman_______ paper_______ people________

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________ teach_______