精品文档---下载后可任意编辑名次变复数----规则规则与不规则名词的变化一、以 s、x、sh、ch 结尾的名词加 es: glasses, boxes, brushes, matches. 以辅音字母加 y 结尾的名词，变 y 为 i 加 es: cities, babies, enemies.4)以 f 或 fe 结尾的名词，多数变 f 为 v 加 es: wives, knives.但有些词只加 s: roofs, proof s, chiefs. 以 o 结尾的名词，有些加 es: Negroes, heroes, tomatoes, potatoes.其它加 s: radio s, zoos, pianos, photos. 不规则名词：foot→feet, goose→geese, tooth→teeth, child→children, man→me n, woman→women, sheep→sheep, deer→deer, mouse→mice. 某些外来词变复数：datum→data, medium→media, bacterium→bacteria, curriculum→curricula, criterion→criteria, phenomenon→phenomena. ( um/ on→a)analysis→analyses, basis→bases, crisis→crises, diagnosis→diagnoses.( is→es ) 复合名词变复数：以不可数名词结尾的复合名词无复数形式，如：homework. 以 man 或 woman 为前缀的复合名词变复数，前后两个名词都变复数，如：manservant→menservants, woman student women students. 其它复合名词变复数：grown up→grown ups, brother in law→brothers in law, stand by→stands by.二、不规则变化几乎所有单词arise 出现 arose arisen awake 醒来 awoke awaked / awoken baby-sit 临时照顾 baby-sat baby-sat be(am / is / are) 是 was / were been 1精品文档---下载后可任意编辑beat 击打 beat beaten become 变成 became become begin 开始 began begun bend 使弯曲 bent bent bet 赌 bet bet bite 咬 bit bitten / bit blow 吹 blew blown break 打破 broke broken bring 拿来 brought brought build 建造 built built burn 燃烧 burnt / burned burnt / burned buy 买 bought bought can 能 could × cast 抛 cast cast catch 捕捉 caught caught choose 选择 chose chosen come 来 came come cost 花费 cost cost cut 割 cut cut deal 分配 dealt dealt dig 挖 dug dug do / does 做 did done 2精品文档---下载后可任...
