had written,was written,is written,have written有什么差别?

问题描述:

had written,was written,is written,have written有什么差别?
1个回答 分类:英语 2014-12-13

问题解答:

我来补答
1.had written是过去完成时态.发生在过去的过去.比如说:“我在他写这类文章之前就已经写过了”.他的文章已经写好了,而我的比他更早写好.就应该是“I had written this kind of essay before he wrote it."
2.was written和is written是被动语态.时态不同.“这首歌是他写的”
“this song is written by him."
“这首歌是他十年前写的”:“this song was
written by him 10 years ago.”
3.have written是现在完成时.表示到现在为止
写完.比如.“我现在已经写了3本小说”就是“I have written 3 novels by now."
 
 
展开全文阅读
剩余:2000
下一页:生物 酶