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do的用法和does的用法
do用来构成一般现在时的疑问或否定式,其后要跟原形动词。does用法:作及物动词时可接名词、代词、动名词、从句作宾语,也可接同源宾语,还可接双宾语。
1、作实义动词,也叫形为动词。
和普通的动词一样,有自己的实际意思,表示“做”。例如:do homework, do exercises等。当主语是I/We/You/They或者复数名词时,动词用do。例如:I often do my homework in the evening .当主语是He/She/It或者其他单数名词时,动词用does例如:She often does homework in the evening .
2、作助动词,无实际意思。通常用于疑问句和否定句。用于一般疑问句。直接在句首加上do/does,注意大小写和部分人称及动词的变化。例如:I like apples.-------Do you like apples?当主语是三人称单数时,记得用does.例如:She likes apples.-------Does she like apples?
其他用法:
构成否定祈使句,例如: Don't go there. 不要去那里。Don't be so absent-minded. 不要这么心不在焉。
放在动词原形前,加强该动词的语气,例如: Do come to my birthday party. 一定来参加我的生日宴会。I did go there. 我确实去那儿了。I do miss you. 我确实想你。
用于倒装句,例如: Never did I hear of such a thing. 我从未听说过这样的事情。 Only when we begin our college life do we realize the importance of English. 只有在开始大学生活时我们才认识到英语的重要性。引导此类倒装句的副词有never, seldom, rarely, little, only, so, well等。