文档介绍：名词单数变复数变化规则:
“s”,如map→maps, bag→bags,book-books等;
,x, sh, ch结尾的词加“es”,如bus→buses, watch→watches, box-boxes等;
,去掉f, fe 加ves的名词有: half→halves knife→knives leaf→leaves wolf→wolves wife→wives life→lives thief→thieves
结尾的名词变复数时:
a)加s的名词有(无生命):photo→photos ,piano→pianos, radio→radios
b)加es的名词有(有生命): potato→potatoes tomato→tomatoes
+y结尾的词,变y为i加es,如baby→babies, family-families, study-studies等;
以元音字母+ y结尾的名词变复数时,直接加s变复数,如monkey→monkeys, holiday→holidays, storey→storeys(楼层);
6. oo变ee的单词:foot-feet, goose-geese, tooth-teeth;
7. a变e的单词: man-men, woman-women, policeman-policemen;
8. 复数与原形一致的单词:fish-fish, sheep-sheep, deer-deer, Chinese-Chinese, Japanese-Japanese;
注:“鱼肉”时,是不可数名词;“鱼的多少”时,是可数名词,但单数和复数同行;There are many fish in the river。“种类“时,复数是“fishes”。There are many kinds of fishes in the river。
9. 有些名词以-s结尾,但表达的是单数意义,例如:news,maths,politics,physics,the United States等。
10. 常以复数形式出现的名词,例如:glasses,trousers,shoes,gloves,socks等,要表达他们的量时常用pair,例如:a pair of glasses/shoes; 复数只需量词变复数,例如:two pairs of shoes
11. 名词作定语时,不用复数形式,如:a shoe shop。如果要表示复数,则去掉不定冠词,把名词词组中的最后一个名词变成复数形式,如:an apple tree---apple trees
例外:man,woman作定语时,如果后面的名词是复数,则man,woman也要跟着变复数。如:a woman teacher----three women teachers
常见的不可数名词:
Food, meat, fish, chicken, beef, drink, milk, water, homework, news, information, fun, work, Chinese, En