现在完成时--动词变化规律教学内容
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现在完成时--动词变
化规律
现在完成时
---动词变化规律
规则动词的过去式变化如下：
一般情况下，动词词尾加 -ed ，如：
worked played wanted acted
以不发音的-e 结尾动词，动词词尾加-d，如：lived moved decided declined hoped judged raised wiped
以辅音字母 + y结尾的动词，把-y变为-i 再加-ed，如：
studied tried copied justified cried carried embodied emptied 以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加-ed，如：stopped begged fretted dragged dropped planned dotted dripped 注：不规则动词的过去式变化规律性不强，须多加记忆。
go - went make - made get - got buy - bought come - came fly-flew
动词过去式,过去分词不规则变化
AB型
can--could shall--should will--would may--might
AAA型
cost—cost--cost cut—cut--cut hit—hit--hit 0
hurt—hurt--hurt let—let--let must—must--must
put—put--put set—set--set shut—shut--shut
read—read--read
ABA型
become—became--become come—came--come run—ran--run
ABB型
bring –brought--brought buy—bought--bought think—thought--thought catch—caught--caught teach—taught--taught build—built--built lend—lent--lent send—sent--sent spend—spent--spent dig—dug--dug feel—felt--felt
keep—kept--kept sleep—slept--slept sweep—swept--swept leave—left--left smell—smelt—smelt pay—paid--paid say—said--said sell—sold--sold tell—told--told sit—sat--sat stand—stood--stood learn—learnt--learnt win—won--won have—had--had make—made--made hear—heard--heard find—found--found hold—held--held
ABC型
begin—began--begun drink—drank--drunk sing—sang--sung swim—swam--swum fly—flew--flown grow—grew--grown know—knew--known throw—threw--thrown
draw—drew--drawn forget—forgot--forgotten speak—spoke--spoken drive—drove--driven eat—ate--eaten give—gave--given ride—rode--ridden take—took--taken write—wrote--written am,is—was--been are—were--been do—did--done go—went--gone see—saw--seen wear—wore--worn。
