新概念英语第一册语法:动词的变化

　　1.代词及Be动词

　　主格 I we you you she/he/it they

　　宾格 me us you you her/him/it them

　　代词所有格 my our your your her/his/its their

　　名词性代词 mine ours yours yours hers/his/its theirs

　　be动词现在时 am are are are is are

　　be动词过去时 was were were were was were

　　2.名词的复数规则变化的名词复数形式：

　　规则1 一般情况+s e.g. shell→shells toy→toys

　　规则2 以s, x, ch, sh结尾+es e.g. fox→foxes church→churches

　　规则3 以o结尾+s或+es e.g. radio→radios potato→potatoes

　　规则4 以f, fe结尾的，变f, fe为ves e.g. life→lives half→halves

　　规则5 以辅音字母+y结尾，变y为i+es e.g. sky→skies study→studies

　　3.动词的第三人称单数规则1 一般情况+s e.g. like-likes, look-looks

　　规则2 以s, x, ch, sh和o结尾+es e.g. do-does, catch-catches

　　规则3 以辅音字母+y结尾，变y为i+es e.g. carry-carries, fly-flies

　　4.动词现在分词规则1 一般动词加-ing e.g. look-looking, read-reading, play-playing

　　规则2 以不发音的字母结尾的单词去e加-ing e.g. make-making, take-taking, arrive-arriving

　　规则3 重读闭音节词结尾，即单词中只有一个元音字母，其后紧跟一个辅音字母的词，双写辅音字母再加-ing e. g. run-running,sit-sitting, get-getting, swim-swimming, stop-stopping

　　5.动词过去式规则动词变化：

　　规则1 一般动词加-ed e.g.look-looked, watch-watched, play-played

　　规则2 以e结尾的加-d e.g. make-maked, arrive-arrived

　　规则3 以辅音字母y结尾的变y为i加-ed cry-cried, carry-carried

　　规则4 重读闭音节词结尾，即单词中只有一个元音字母，其后紧跟一个辅音字母的词，双写辅音字母再加-ed stop-stopped

　　过去式的读音：

　　在清辅音后面(除外)读/t/ e.g. walked, jumped

　　在浊辅音和元音后读/d/ e.g. washed, watched

　　在/t/，/d/后读/id/ e.g. waited, hated

　　6.形容词和副词的比较级和最高级比较级

　　规则1 一般加-er e.g. high-higher

　　规则2 以e结尾加-r nice-nicer

　　规则3 以辅音字母加y结尾，变y为i再加-er busy-busier

　　规则4 重读闭音节结尾，双写辅音字母再加-er fat-fatter

　　最高级

　　规则1 一般加-est e.g. high-highest

　　规则2 以e结尾加-st nice-nicest

　　规则3 以辅音字母加y结尾，变y为i再加-est busy-busiest

　　规则4 重读闭音节结尾，双写辅音字母再加--est fat-fattest

　　7.常见缩写is='s I am=I'm are='re

　　is not=isn't are not=aren't

　　do not=don't

　　does not=doesn't

　　was='s

　　did not=didn't

　　can not=can't

　　have='ve

　　has='s

　　have not=haven't

　　has not=hasn't

　　will='ll

　　will not=won't

　　shall not=shan't

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