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e days. We bought the book three years ago. He caught a cold three days ago. 一般過去時態(tài)和現(xiàn)在完成時態(tài)可以構(gòu)成同意句 I have kept the book since last week. . I have been a student for over two years. I borrowed the book last week. I became a student two years ago. Black死了三年了?,F(xiàn)在完成時態(tài)是中考的必考時態(tài),由于現(xiàn)在完成時態(tài)既涉及到過去,又聯(lián)系到現(xiàn)在,和一般過去時態(tài),一般現(xiàn)在時態(tài),現(xiàn)在進(jìn)行時態(tài)既有聯(lián)系,又有區(qū)別,所以同學(xué)們掌握起來比較困難。 現(xiàn)把這種時態(tài)的用法簡單的總結(jié)一下,和各位老師共同切磋。 Mr Black has been dead for three years. Mr Black died three years ago. 。 We have been students for eight years. 10分鐘了 The class has been over for ten minutes. The film has been on for an hour. The door has been open for half an hour. 1. You’ve never seen