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英语四、六级考试语法精要解析:虚拟语气9

  9. lest, for fear that和 in case引起的从句
  当lest, for fear that和 in case表示“以免,以防,生怕,惟恐”等时,在它们引起的从句中,谓语动词常用should + 动词原形。
  He ran away lest he should be seen.
  He’s working hard for fear that he should fall behind.
  He left early in case he should miss the last train.

  10. If only引出的从句
  If only引出的从句用以表达感叹性的愿望,常译为“要是…就好了”。If only从句经常省略结果主句,且主要用在虚拟语气中,即从句的谓语动词用一般过去时表示现在或将来不可能实现的愿望,或用过去完成时表示过去没有实现的愿望。
  If only the rain would stop.
  If only I’d listened to my parents.
  Note: if only引出的句子偶尔也可使用陈述语气,但考生须注意的是,在各类测试中一般都以用虚拟语气为正确答案。

  11. would rather(that)引出的从句
  would rather意为“宁愿”,接从句时常省略关系代词that。would rather后的从句要用虚拟语气,即从句谓语动词用一般过去时表示现在或将来的愿望,用过去完成时表示与过去事实相反的愿望。
  I’d rather you told me the truth.
  I would rather you came tomorrow than today.
  I’d rather you hadn’t told me about it.

  12. It is (about/high) time (that) 句型
  该句型表示“(早)该做…”,其后的定语从句中的谓语动词要用虚拟语气表示。在测试中从句的谓语动词用一般过去时。
  It is time that we went to bed.
  It is high time that somebody taught you to behave yourself.

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