小学英语语法：动词的变化

小学英语语法：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 theirsbe动词现在时 Am are are are is arebe动词过去时 was were were were was were2)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. shellshells toytoys规则2 以s, x, ch, sh结尾+es e.g. foxfoxes churchchurches规则3 以o结尾+s或+es e.g. radioradios potatopotatoes规则4 以f, fe结尾的，变f, fe为ves e.g. lifelives halfhalves规则5 以辅音字母+y结尾， 变y为i+es e.g. skyskies studystudies3)动词的第三人称单数形式规则1 一般情况+s e.g. like-likes, look-looks规则2 以s, x, ch, sh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-flies4)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-stopping5)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, hated6)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-fattest7)常见缩写：is=s I am=Im are=reis not=isnt /iznt/ are not=arent /a:nt/do not=dontdoes not=doesntwas=sdid not=didntcan