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  • [虚拟语气] 比较if only与only if 发表日期:2013-02-24

    only if表示只有;if only则表示如果就好了。If only也可用于陈述语气。 I wake up only if the alarm clock rings. 只有闹钟响了,我才会醒。 If only the alarm clock had rung. 当时闹钟响了,就好了。 If only he comes early. 但愿他早点回来。...

  • [虚拟语气] 特殊的虚拟语气词:should 发表日期:2013-02-24

    1) It is demanded / necessary / a pity + that结构中的主语从句的谓语动词要用should 加动词原形, should 可省略。 句型: (1)suggested It is (2)important that+ (should) do (3) a pity (1)suggested, ordered, proposed, required, demanded, reques...

  • [虚拟语气] 虚拟条件句的倒装 发表日期:2013-02-24

    虚拟条件句的从句部分如果含有were, should, 或had, 可将if省略,再把were, should或had 移到从句句首,实行倒装。 Were they here now, they could help us. =If they were here now, they could help us. Had you come earlier, you would have met him =I...

  • [虚拟语气] 混合条件句 发表日期:2013-02-24

    主句与从句的动作发生在不同的时间,这时主,从句谓语动词的虚拟语气形式因时间不同而不同,这叫做混合条件句。 If you had asked him yesterday, you would know what to do now. (从句与过去事实相反,主句与现在事实相反。) If it had rained last nigh...

  • [虚拟语气] 非真实条件句 发表日期:2013-02-24

    1)时态:可以表示过去,现在和将来的情况。它的基本特点是时态退后。 a. 同现在事实相反的假设。 句型 : 条件从句 主句 一般过去时 should( would) +动词原形 If they were here, they would help you. b. 表示于过去事实相反的假设。 句型: 条件从句 主...

  • [虚拟语气] 真实条件句 发表日期:2013-02-24

    真实条件句用于陈述语气,假设的情况可能发生,其中 if 是如果的意思。 时态关系 句型: 条件从句 主句 一般现在时 shall/will + 动词原形 If he comes, he will bring his violin. 典型例题 The volleyball match will be put off if it ___. A. will rain...