江苏省启东中学高三英语语法专题[下学期].doc 江苏省启东中学高三英语语法专题复习讲义 一、名词 【要点点拨】 一. 可数名词的复数构成规则: 1.规则变化:加-s, -es; 辅音字母加y结尾的去y加ies;把f/ fe变成ves; (1)keys , three Henrys; stomachs; safes; beliefs; proofs; roofs; gulfs; chiefs; heroes; potatoes; tomatoes; Negroes; dingoes (2) 缩写,数字,字母等在后面加s或’s都可,如: some VIPs (VIP’s); in his 50s / 50’s; in the 1990s / 1990’s; There are two t’s in the word “letter”. 2.不规则变化: (1) men , children , feet, teeth, geese, mice; oxen等; (2) 单复数形式相同:sheep; deer; fish; means; works