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Havinghad用法请详细讲解一下havinghad的用法,主要作句首的作用还有Tohavehad的用法,以及与havinghad有什么区别,
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Having had用法
请详细讲解一下having had的用法,主要作句首的作用
还有To have had的用法,以及与having had有什么区别,
请详细讲解一下having had的用法,主要作句首的作用
还有To have had的用法,以及与having had有什么区别,
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答案和解析
这两个have是不同的,前一个是助动词 无词义只表示完成.后一个是行为动词有它自己的词义,不同的句子里意思不同.有吃,进行等意思.如
Having had breakfast,Tom went to school.吃完早饭,汤姆去上学了.(表示吃的动作发生在上学之前所以用了现在分词的完成时)
Tom seemed to have had his breakfast.(汤姆好像吃过早饭了)因为seem后必需接不定式to do这里又表示吃的动作发生在谓语动作之前所以用不定式的完成式.
在以下词后有用不定式to have had的时候.
句型主语be +过去分词+to have had
eg,Tom was said to have had his exam.
或用在 pretend ,seem appear之后.
Tom pretended to have had his supper.
Having had breakfast,Tom went to school.吃完早饭,汤姆去上学了.(表示吃的动作发生在上学之前所以用了现在分词的完成时)
Tom seemed to have had his breakfast.(汤姆好像吃过早饭了)因为seem后必需接不定式to do这里又表示吃的动作发生在谓语动作之前所以用不定式的完成式.
在以下词后有用不定式to have had的时候.
句型主语be +过去分词+to have had
eg,Tom was said to have had his exam.
或用在 pretend ,seem appear之后.
Tom pretended to have had his supper.
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