中考网整理了关于2020年中考英语知识点之现在完成时的几种常见的句型转换，希望对同学们有所帮助，仅供参考。

　　现在完成时的几种常见的句型转换。

　　现在完成时可以转化成一般过去时，还可以转化成“It is/has been +时间段+since从句(用一般过去时)”等句型。

　　e.g. Jim has been back for a month. 吉姆已经回来一个月了。 = Jim came back a month ago. 吉姆一个月前就回来了

　　= It is/has been a month since Jim came back. 自吉姆回来已经有一个月了。 = A month has passed since Jim came back. I have kept the book for two days. = I borrowed the book two days ago.

　　= It is / has been two days since I borrowed the book. = Two days has passed since I borrowed the book.

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