动词现在分词的变法:1．在一般情况下,动词可直接加-ing,如：do→doing.2．以重读闭音节结尾的动词,一般要双写尾字母加-ing,如：sit→sitting.3．去掉词尾的哑e再加-ing,如：take→taking.动词第三人称单数变化规则如下动词第三人称单数变化规则如下动词第三人称单数变化规则如下动词第三人称单数变化规则如下：：：：1)一般情况下,动词后面直接加-s.例如：works,gets,says,reads2)以ch,sh,s,x或o结尾的动词,在后面加-es.例如：goes,teaches,washes3)以辅音字母+y结尾的动词,把y变为i再加-es.例如：studies,tries,carries动词过去式变化规则动词过去式变化规则动词过去式变化规则动词过去式变化规则:1．规则动词过去式的变化规则1）一般在动词词尾加ed.work—worked,rain—rained,watch—watched2）如果动词以字母e结尾,变过去式时直接在词尾加d.love—loved,live—lived,change—changed3）如果动词是以一个元音字母加上一个辅音字母结尾的重读闭音节单词,变过去式时,要双写这个辅音字母,再加ed.stop—stopped,plan—planned,drop—dropped4）如果动词是以辅音字母加y结尾,变过去式时要变y为i再加ed.study—studied,carry—carried,try—tried2．部分不规则动词的过去式Is/am—was,are—were,do—did,can—could,have—had,drink—drank,ride—rade,let—let(让),put—put(放),read—read(读),run—ran(跑)come—came(来),become—became(成为),bring—brought(带来),buy—bought(买)go—went(去),think—thought(想),catch—caught(抓住),teach—taught(教)lend—lent(给),send—sent(寄,送),feel—felt(感觉),keep—kept(保持)leave—left(离开),meet—met(遇见),learn—learnt/learned(学习)sell—sold(卖),tell—told(告诉),hold—held(抓住),get—got(得到)hear—heard(听),make—made(制造),sit—sat(坐),find—found(发现)see—saw(看见),begin—began(开始),swim—swam(游泳),sing—sang(唱)write—wrote(写),know—knew(知道),show—showed(出示)speak—spoke(讲),take—took(拿走),eat—ate(吃),give—gave(给),find—found(找)forget—forgot动词现在分词动词现在分词动词现在分词动词现在分词、、、、单三形式单三形式单三形式单三形式、、、、过去式变法过去式变法过去式变法过去式变法动词现在分词的变法动词现在分词的变法动词现在分词的变法动词现在分词的变法:1．在一般情况下,动词可直接加-ing,如：do→doing.2．以重读闭音节结尾的动词,一般要双写尾字母加-ing,如：sit→sitting.3．去掉词尾的哑e再加-ing,如：take→taking.动词第三人称单数变化规则如下动词第三人称单数变化规则如下动词第三人称单数变化规则如下动词第三人称单数变化规则如下：：：：1)一般情况下,动词后面直接加-s.例如：works,gets,says,reads2)以ch,sh,s,x或o结尾的动词,在后面加-es.例如：goes,teaches,washes3)以辅音字母+y结尾的动词,把y变为i再加-es.例如：studies,tries,carries动词过去式变化规则动词过去式变化规则动词过去式变化规则动词过去式变化规则:1．规则动词过去式的变化规则1）一般在动词词尾加ed.work—worked,rain—rained,watch—watched2）如果动词以字母e结尾,变过去式时直接在词尾加d.love—loved,live—lived,change—changed3）如果动词是以一个元音字母加上一个辅音字母结尾的重读闭音节单词,变过去式时,要双写这个辅音字母,再加ed.stop—stopped,plan—planned,drop—dropped4）如果动词是以辅音字母加y结尾,变过去式时要变y为i再加ed.study—studied,carry—carried,try—tried2．部分不规则动词的过去式Is/am—was,are—were,do—did,can—could,have—had,drink—drank,ride—rade,let—let(让),put—put(放),read—read(读),run—ran(跑)come—came(来),become—became(成为),bring—brought(带来),buy—bought(买)go—went(去),think—thought(想),catch—caught(抓住),teach—taught(教)lend—lent(给),send—sent(寄,送),feel—felt(感觉),keep—kept(保持)leave—left(离开),meet—met(遇见),learn—learnt/learned(学习)sell—sold(卖),tell—told(告诉),hold—held(抓住),get—got(得到)hear—heard(听),make—made(制造),sit—sat(坐),find—found(发现)see—saw(看见),begin—began(开始),swim—swam(游泳),sing—sang(唱)write—wrote(写),know—knew(知道),show—showed(出示)speak—spoke(讲),take—took(拿走),eat—ate(吃),give—gave(给),find—found(找)forget—forgot

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