一般过去时讲解.doc

:一般过去时表示过去某一时候或某一段时间所发生了的事情或存在的状态。规则变化则遵循以下原则:(1)一般在动词后加-ed。如:play—played(2)在以字母e结尾的动词后,只加-d。如:like—liked(3)在以“辅音字母+y”结尾的动词后,则改y为i,再加—ed.(4)在以单短元音的重读闭音节结尾且,末尾只有一个辅音字母的动词后,双写最后一个辅音字母,再加-ed。如:plan—planned,refer—referred不规则变化:自己记练****一:is\(have)(watch)TVand__________(read)(go)(stay)athomeand_________(do):⑴am/is=was(否定wasnot=wasn't)⑵are=were(否定werenot=weren't)⑶一般疑问句把was/:didn't+动词原形例:':在句首加did,句子中的动词过去式变回原形例:?特殊疑问句:⑴疑问词+一般疑问句?例:Jimwenthomeyesterday.(原句)DidJimgohomeyesterday?(一般疑问句)WhatdidJimdoyesterday?(特殊疑问句)练****二:用be动词的适当形式填空。、Lucydidherhomeworkathome.(改否定句)、Hefoundsomemeatinthefridge(冰箱).(变一般疑问句)___________he_____________________meatinthefridge?3、Therewassomeorangeinthecup.(变一般疑问句)_______there_______orangeinthecup?