He didn't do his homework yesterday 为什么do是原型.不是疑问句吖——.——、各位专家讲得好好哦——————————————————————~可惜就是没听懂、能通俗点么。都差不多偶该选

来源：学生作业帮助网 编辑：作业帮 时间：2024/11/28 02:32:56
He didn't do his homework yesterday 为什么do是原型.不是疑问句吖——.——、各位专家讲得好好哦——————————————————————~可惜就是没听懂、能通俗点么。都差不多偶该选
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He didn't do his homework yesterday 为什么do是原型.不是疑问句吖——.——、各位专家讲得好好哦——————————————————————~可惜就是没听懂、能通俗点么。都差不多偶该选
He didn't do his homework yesterday 为什么do是原型.不是疑问句吖——.
——、各位专家讲得好好哦——————————————————————~可惜就是没听懂、能通俗点么。都差不多偶该选哪个最佳——？

He didn't do his homework yesterday 为什么do是原型.不是疑问句吖——.——、各位专家讲得好好哦——————————————————————~可惜就是没听懂、能通俗点么。都差不多偶该选
didn't 的原形是do not , do为助动词,助动词后面都是跟动词原形.
do homework是做作业的意思.
He didn't do his homework yesterday.
他昨天没有做作业.

那把didn't 拆了吧
He did not do his homework yesterday.
do的过去式是did,因为do作为助动词时,后面加动词原形,所以跟在did后面的动词也是用原形.

因为do在这里不是动词= =而且有助动词咯- - 这是陈述句哟~~~ 咳咳咳那位啊- -不要误导她！！！！！那个do不是助动词！！！！did才是助动词==

此句是一般过去时，didn't 是助动词，do 是实意动词写或做的意思
若词句写成一般现在时是He dosen't do his homework
如He didn't eat that apple yesterday 。词句中的eat是实意动词，而表过去式，就需要把助动词dosen't变成didn't，就可以了

did是助动词 后面加原型
后面的do是实意动词

He didn't do his homework yesterday. He didn't( )(do)his homework yesterday正确形式 His friend didn't know what he should do改同义句His friend didn't know（ ）（ ）（ ） He didn't do his homework last night.He watched TV（改为同义句） 把He didn't do his homework last night改为肯定句 将下列单词组成句子him,why,didn't,the teacher,his,asked,homework,he,do He didn't do his homework last night.That ________(make) the teacher ______(feel)angry 英语连词成句 1 him,why,didn't,the theacher,his,asked,homework,he,do Tom___(do)his homework at half past four yesterday afternoon,but he didn't finish it The old man lost his dog.he was sad.He didn't want to do a_____all day. he didn't come yesterday because he was ill.he didn't come yesterday【】【】his【】 He isn`t lose his heart.He didn`t lose his heart.有什么区别?也就是didn·t和isn·t的区别?RT.最好能详细说说什么时候用DO什么时候用BE. 他没有尽力,所以我并不为他惋惜.He didn't do his best,so I didn't __ __ __ him. He wanted to do it on his own.So he didn't ask her.的同义句He didn't ask her ------he wanted to do it -------(一空一词） 适当形式填空：He didn't do well in English last term,but his brother did even ______(badly) His bike was broken.He didn't know __to do with it .此处该用what 还是how? he must have finished his homework last night,didn't he?为什么是didn't He couldn't start his car.He really didn't know______.A.what can he do B what he can do Cwhat to do D how to do 选项和原因