4、+v.原形+其它?肯定回答:Yes,主语+did.否定回答:No,主语+did’t.wasn’t=wasnotweren’t=werenot【didnot=didn’t】【do,does---did】am/is---wasare---were二、一般过去时的结构(可分三类不同的结构)注意:1.did和didn’t是构成一般过去时的助动词,其特点是要在其后跟动词的原形。2.实意动词do的一般过去时I do my homework everyday.(用yesterday改写句子)I ____my homework yester
5、day.I _________ my homework yesterday.(否定句)____ you ____ your homework yesterday?Yes,Idid. /No, Ididn’t.(一般疑问句)They______(have)agoodtimeyesterday.They___________(notwatch)TVlastnight.____you_____(go)totheparkyesterday?Yes,I____./_____,Ididn’t.haddidn’twatchDidgodi