题目内容

20.Collecting stamps as a hobby         increasingly popular during the past fifty years.(  )
A.becomesB.becameC.has becomeD.had became

分析 集邮作为一种爱好在过去的五十年里变得越来越受欢迎.

解答 答案:C
根据句中的时间状语"during the past fifty years"可知,此处表达的是在过去的一段时间内发生的动作对现在产生的影响,即有越来越多的人热衷于集邮了;故用现在完成时,故选C.

点评 本题考查了现在完成时强调"影响性"的用法;现在完成时除了强调动作的持续性以外,它还强调过去的动作对现在产生的影响以及造成的结果;例如:I have already seen the film.我已经看过这部电影了.(对现在的影响是:我知道电影的内容);I have lost my key.我把钥匙弄丢了.(造成的结果是:我进不了门了.)

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