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1、归纳起来, do ,does 的用法有四方面: 一.用作一般的,vt.vi均可.do是一不规则变化的动词(do ,did,done). do,据人称和的不同而有字形的变化.第一,以及第一.二.三 人称的时,都用 do . 第三人称时,用 does( he does she does it does ) 例如: I do my homework on Sunday. You do your homework on Sunday. We do our homework on Sunday. You do your homework on Sunday. They do their homework
2、on Sunday. He does his homework on Sunday. She does her homework on Sunday. 二.当用,用它来构成.这时它本身没有实义,只是一个构成疑问句的而已.这种用法时,它随人称和数的变化规则与上述相同.只是把它放到的最(句首).例如: Do I .? Do you .? Do we .? Do you .? Do they .? Does he .? Does she .? Does it .? 三.当助动词用,与 not 连用使句子构成.其随人称和数的变化规则与上述相同.例如: I do not .? (do not 可简化为
3、dont ,下同) You do not .? We do not.? You do not.? They do not.? He does not.? (does 可简化为 doesnt,下同) She does not.?四.当作助动词,本身在句子中无实义,只是加强句子中动词的.其随人称和数的变化同上.例如: Do write to me.(一定写信给我!) Never do I see such a fool.(我从来没见过这样的蠢才.) She does come.(她的确来了.) * * * * * * 按词性, do 还可以用作.其意是欺骗;宴会,宴请.例如: Its all a do.(完全是欺骗.) We have got a do on to-night.(家里今晚请客.)