五年级语法专项练习（一）名词一、名词复数规则1一般情况下，直接加-s，如：book-books, bag-bags, cat-cats, bed-beds2以s. x. sh. ch结尾，加-es，如：bus-buses, box-boxes, brush-brushes, watch-watches3以“辅音字母y”结尾，变y为i,再加-es，如：family-families, library-libraries4以“f或fe”结尾，变f或fe为v,再加-es，如：knife-knives，leafleaves5不规则名词复数：一写出下列单词的复数man-men, woman-women, policeman-policemen, policewoman-policewomen,child-children，foot-feet,tooth-teethfish-fish, deer-deer（鹿）, sheep-sheep（绵羊）, people-people, Chinese-Chinese, Japanese
