in the past few years用什么时态?
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in the past few years在通常情况下,可以连用的时态有两种:现在完成时和一般过去时。
1、现在完成时
He has collected hundreds of rock specimens in the past few years.
在过去几年里,他收集了几百种岩石标本。
2、一般过去时
In the past few years, Math Counts added two new middle school programs to try to diversify its participant pool---the National Math Club and the Math Video Challenge.
在过去的几年里,为了让参加者人员多样化,Math Counts新增了两个中学课程:国家数学俱乐部和数学视频挑战赛。
past的用法
past用作形容词
1、用作定语 ~+ n.
For the past few days he has been ill.
几天以来他一直生病。
2、用作表语 S+be+~
Winter is past.
冬天已经过去了。
The Second World War was past.
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