在线英语听力室

现在完成时转换成一般过去时

时间：2016-11-18 04:22:38

（单词翻译:单击）

 　　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+since2从句(用一般过去时)”等句型。

　　e1.g. Jim has been back for a month. 吉姆已经回来一个月了。 = Jim came3 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 borrowed4 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.

分享到：


点击收听单词发音收听单词发音  

1 e e1671797c52e15f763380b45e841ec32     
n.英语字母表的第5个字母；C大调音阶中的第三音
参考例句：
  • The "e" in " time" is a silent letter. time中的e不发音。 来自《简明英汉词典》
  • You've made a mistake -- you've left out the letter e. 你出了一个错，把字母e 落了。 来自《现代汉英综合大词典》
2 since syswX     
adv.后来；conj.既然，因为，自从；prep.自从
参考例句：
  • He's been working in a bank since leaving school.自从毕业后，他就一直在一家银行工作。
  • I have known him ever since I was a child.我自孩提时代起就已经认识他了。
3 came xTYyl     
v.动词come的过去式
参考例句：
  • I was surprised why he came here so early.他为什么那么早到这里，我很惊奇。
  • The doctor came in time to save his life.医生及时来抢救他的生命。
4 borrowed GxqzhK     
adj.借来的
参考例句：
  • I feel honor bound to repay the money I borrowed. 我觉得有责任归还我借的钱。
  • I have left the watch as pledge for borrowed money. 我留下这块手表作为借款的抵押物。