over the past years 时态用现在完成时。
over the past years意为“在过去的数年”,通常情况下题干中出现over the past years,谓语动词为现在完成时态
例句:
1、Chinese filmmakers have won several prizes at events over the pastyears.
中国的影片制作人过去几年中已经在此电影节中多次获奖。
现在完成时标志词
1、already
用在肯定句中(be动词、助动词、情态动词之后,实意动词之前)常与yet进行转换。
例如:I have already finished the work.
我已经完成这项工作了。
改为否定句:I haven't finished the work yet.
我还没有完成这项工作。
2、yet
放在否定句和一般疑问句句末。
其他的标志词:just,before,recently,still,lately,never,ever,twice,on several occasions,in the past/last few days/weeks/months/years,(up to)these few days/weeks/months/years,this morning/week/month/year(多用于一般过去时),up to present,so far,up to now,up till now,till now。
3、since+时间点=for+时间段=since+时间段+ago
since+一般过去时态的时间状语从句。
例如:He has been here since he joined the army.
自从他参军以来,他一直在这儿。