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名詞復(fù)數(shù)規(guī)則
1．一般情況下，直接加-s如：book-books, bag-bags, cat-cats, bed-beds
2．以s. x. sh. ch結(jié)尾，加-es如：bus-buses, box-boxes, brush-brushes, watch-watches
3．以“輔音字母+y”結(jié)尾，變y為i, 再加-es如：family-families, strawberry-strawberries
4．以“f或fe”結(jié)尾，變f或fe為v, 再加-es
如：knife-knives, wife-wives
5．不規(guī)則名詞復(fù)數(shù)：
man-men, woman-women, policeman-policemen, policewoman-policewomen,
mouse-mice, child-children, foot-feet, tooth-teeth, fish-fish, people-people
Chinese-Chinese, Japanese-Japanese
寫出下列各詞的復(fù)數(shù)
watch _______ child _______ photo _______ diary _______
day _______ foot_______ book_______ dress _______
tooth _______ sheep _______ box _______ strawberry _______
thief _______ yo-yo _______ peach _______ sandwich _______
man _______ woman _______ Chinese _______ bag _______