Question

求初一到初三所有英语语法

Answer 1

A）、名词的数
我们知道名词可以分为可数名词和不可数名词,而不可数名词它没有复数形式,但可数名词却有单数和复数之分,复数的构成如下：
一）在后面加s.如：fathers, books, Americans, Germans, apples, bananas
二）x, sh, ch, s, tch后加es.如：boxes, glasses, dresses, watches, wishes, faxes
三）1）以辅音字母加y结尾的变y为i再加es 如：baby-babies, family-families, duty-duties, comedy-comedies, documentary-documentaries, story-stories
2）以元音字母加y结尾的直接加s.如：day-days, boy-boys, toy-toys, key-keys, ways
四）以o结尾加s（外来词）.如：radios, photos, 但如是辅音加o的加es：如: tomatoes西红柿, potatoes马铃薯
五）以f或fe结尾的变f为v再加es(s).如：knife-knives, wife-wives, half-halves, shelf-shelves, leaf-leaves, yourself-yourselves
六）单复数相同（不变的）有：fish, sheep, deer鹿子, Chinese, Japanese
七）一般只有复数,没有单数的有：people,pants, shorts, shoes, glasses, gloves, clothes, socks