微英语 - 1000语法细节:虚拟语气010
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    If only与wish情况类似,它表示"但愿",用法与含义均与I wish相似,很多"I wish"引导的虚拟语气都可以用If only取代,含义大致相同。例如:If only she had asked someone's advice!

    标签:词汇、比较  难度(4)|用途(5)|标记( )

    as if/though表示"好像",它也可以用来表示虚拟语气。比如:She loves the child as if he were her own.这一句子就是虚拟语气,与现在事实相反;He talks as if he had been there many times.该句的虚拟语气与过去事实相反。

    标签:虚拟、词汇  难度(3)|用途(5)|标记( )

    由as if/as though 引导的虚拟语气,如果与过去事实相反,as if/as though谓语动词要用had done;如果与现在事实相反,as if/as though谓语动词要用did,这种用法与if only是非常相似的。

    标签:虚拟、引导词  难度(3)|用途(6)|标记( )

    only if表示"只有",if only则表示"如果......就好了",它们两个意思差别较大,需要注意别弄混了。比如:I wake up only if the alarm clock rings.(只有闹钟响了,我才会醒。)If only I could see him once.(如果我能再见到他一次就好了。)

    标签:词汇、比较  难度(4)|用途(4)|标记( )

    在even if, even though 所引导的让步状语从句中,需要用"may/might+动词原形",may/might可以省略,表示与现在相反的情况;从句用过去完成时,表示与过去相反的情况,类似的词有though/even though/whatever/however/so long as等,主句、从句的结构与if所引导的条件从句结构相同。

    标签:从句、让步  难度(5)|用途(5)|标记( )

    热门词汇

    advice n. 建议;忠告

    talk vi. 谈话;说闲话

    as though 好像;仿佛

    alarm n. 警报,警告器

    ring vi. 按铃;回响

    even though 虽然,即使

    however conj. 然而;可是

    so long as 只要

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    常用词组--need have done

      "need have done"表示本来需要做某事而没有做。"needn't have done"则表示"本来不需要做某事而做了"。比如:I needn't have bought so much wine--only five people came.(我本来没有必要买这么多酒,只来了五个人。)He need have hurried to the station. In that case, be wouldn't have missed the train.(他本来需要快点去车站,那样的话,他就不会误了火车。)

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