资源简介 (共11张PPT)高中英语常考的词性变化规则及注意点回顾形容词变副词的规则1. 以“元音字母+e结尾的形容词”,去e加ly;如:true--truly whole--wholly以 “-ble/ple ”结尾的形容词,去e加y.如:possible--possibly simple--simplyterrible-- terribly horrible --horribly2. 以辅音字母+y 结尾的形容词,改y为i加ly.如:easy--easily , happy--happily , noisy--noisily3. 其它形容词直接加ly.polite--politely, fortunate--fortunately,immediate--immediately形容词变副词的规则4. 以ic结尾的词,加-ally,如:economic-economically, academic---academically, energetic-energetically, specific---specifically5.特殊的副词变形good--well形容词变副词的规则注意:1. 以ly结尾的形容词:friendly, lovely, weekly, timely, lively, lonely, likely, deadly, ugly, silly2. fast, early, straight既是形容词又是副词,不加ly。例如:He runs fast. Can you give me a fast answer 3. 有些形容词本身即为副词,同时也有加ly的副词形式,但加不加ly意思不一样,使用时需注意。现在分词和动名词的变化规则1. 一般情况,直接加ing going playing2. 以不发音的e结尾,去e再加ing arrive--arriving, come--coming, make--making3. 以重读闭音节结尾,双写辅音字母再加ingrun--running, swim--swimming, put--putting, sit--sitting begin--beginning, plan--planning,cut-- cutting, get--getting, shop--shopping, chat--chatting, stop--stopping, regret--regretting现在分词和动名词的变化规则4. 以ie结尾,把ie变y加ingtie--tying, die--dying, lie--lying5. 其他 ski--skiing过去式和过去分词的变化规则1. 一般情况,直接加ed worked played2. 以不发音的e 结尾,直接加d lived, moved, arrived 3. 以辅音字母加y结尾,把y变i加edstudy--studied try--tried copy--copiedcry--cried以元音字母加y结尾,直接加ed stayed played过去式和过去分词的变化规则4. 重读闭音节,双写辅音字母加ed stopped, begged, dropped, planned, steppedprefer--preferred, infer--inferred, refer--referred,occur--occurred, regret--regretted, control--controlled, permit--permitted, equip--equipped注意:offer--offered suffer--suffered可数名词的复数变化规则1. 一般情况加s book--books, mouth--mouths2. 以s, sh, ch, x结尾的加 esclass--classes, box-- boxes, match--matches 注意:stomach的复数形式直接加 s3. 以y结尾辅音字母+ y结尾的,变y为i加es:city--cities, country--countries, party--parties,study--studies, enemy--enemies元音字母+y结尾的,直接加s:day--days, boy--boys, key--keys, toy--toys 可数名词的复数变化规则4. 以o结尾, 少数(4个),加esNegroes, heroes, potatoes, tomatoes其他(一般无生命的),加s:radios, zoos, bamboos, pianos, kilos, photos, studios5. 以f或fe 结尾多数,变f或fe为ves : thief, wife, wolf, leaf, knife, life, half, shelf, loaf, self其他,加s: belief--beliefs, roof--roofs, safe--safes, gulf--gulfs不规则的复数变化ox--oxen, child--children, foot--feet, tooth--teeth, goose--geese, mouse--mice, man--men注意:Germans, Americans, Russians英语中的某些外来词,其复数变化很特殊:phenomenon--phenomena, penny--pennies/pence, formula--formulae, bacterium--bacteria, medium--media, datum--data, crisis--crises, basis--bases, thesis--theses 展开更多...... 收起↑ 资源预览