高三英语中do,did,have,had用法的区别,请举例子

have用在现在完成时中,强调对现在造成的影响.其后跟动词的过去分词.如：I have eaten three eggs,now I am not hungry.
had 如果做为”有“的意思用在一般过去时态中.如,I had a book when I was four years old.
如果用在过去完成时中,had 动词的过去分词构成
did 用在一般过去时态中,do用于一般现在时中,为“做”的意思.如,I often do my homework at night.我经常在晚上做家庭作业.（一般现在时）I did my homework last night.我昨天晚上做了家庭作业.（一般过去时）另一种情况,do/did解释为“确实”,起强调作用.如：I did finish my home-work.我的确完成作业了.I do often play game.我的确经常打游戏.

have用在现在完成时中，强调对现在造成的影响。其后跟动词的过去分词。如：I have eaten three eggs,now I am not hungry.
had 1. 如果做为‘有’的意思用在一般过去时态中。如，I had a book when I was four years old.
2.用在过去完成时中，had 动词的过去分词构成
did 用在一般过去时...

do有两种用法。一种是，没有具体意思：I do my homework everyday.
一种是表示强调：一般翻译成确实。I do very happy.我确实很高兴