高考英语配套教学课件《Unit 2 The Environment》专题语法攻略（十四） 虚拟语气 译林版必修5
<p> 一、虚拟语气在条件句中的使用 三种 情况 <span word="if">if</span>从句 主句 例句 与现在 事实相 反 主语＋动词的过去式(<span word="be">be</span>的过去式用<span word="were">were</span>) 主语＋<span word="would">would</span>/<span word="could">could</span>/<span word="might">might</span>/<span word="should">should</span>＋<span word="do">do</span> <span word="If">If</span> <span word="I">I</span> <span word="were">were</span> <span word="a">a</span> <span word="bird">bird</span>，<span word="I">I</span> <span word="could">could</span> <span word="fly">fly</span>.如果我是一只鸟，我就能飞了。 三种 情况 <span word="if">if</span>从句 主句 例句 与过去 事实相 反 主语＋<span word="had">had</span>＋过去分词 主语＋<span word="would">would</span>/ <span word="could">could</span>/<span word="might">might</span>/<span word="should">should</span>＋<span word="have">have</span></p><p> <span word="done">done</span> <span word="If">If</span> <span word="we">we</span> <span word="had">had</span> <span word="started">started</span> <span word="earlier">earlier</span>，<span word="we">we</span> <span word="should">should</span> <span word="not">not</span> <span word="have">have</span> <span word="missed">missed</span> <span word="the">the</span> <span word="train">train</span>.如果我们早点出发，就不会错过这列火车了。 三种 情况 <span word="if">if</span>从句 主句 例句 与将来 事实相 反 主语＋动词的过去式 主语＋<span word="were">were</span> <span word="to">to</span> <span word="do">do</span> 主语＋<span word="should">should</span>＋<span word="do">do</span> 主语＋<span word="would">would</span>/<span word="could">could</span>/<span word="might">might</span>/<span word="should">should</span>＋<span word="do">do</span> <span word="If">If</span> <span word="he">he</span> <span word="should">should</span> <span word="not">not</span> <span word="arrive">arrive</span> <span word="on">on</span> <span word="time">time</span>，<span word="we">we</span> <span word="would">would</span> <span word="call">call</span> <span word="off">off</span> <span word="the">the</span> <span word="meeting">meeting</span>.万一他不能按时到，我们就取消会议。 [注意] (1)用介词<span word="with">with</span>，<span word="without">without</span>，<span word="but">but</span> <span word="for">for</span>等替代条件句。 <span word="But">But</span> <span word="for">for</span> <span word="your">your</span> <span word="advice">advice</span>，<span word="I">I</span> <span word="could">could</span> <span word="not">not</span> <span word="have">have</span> <span word="done">done</span> <span word="it">it</span> <span word="so">so</span> <span word="successfully">successfully</span>.要是没有你的建议，我就不会那么成功。 <span word="The">The</span> <span word="changes">changes</span> <span word="could">could</span> <span word="not">not</span> <span word="have">have</span> <span word="taken">taken</span> <span word="place">place</span> <span word="without">without</span> <span word="the">the</span> <span word="open">open</span> <span word="door">door</span> <span word="policy">policy</span>.要是没有开放政策，就没有这些变化。 (2)省略<span word="if">if</span>的虚拟条件句。 <span word="if">if</span>引导的虚拟条件句的谓语动词中含有<span word="had">had</span>，<span word="should">should</span>，<span word="were">were</span>时，可将<span word="if">if</span>省略。而将<span word="had">had</span>，<span word="should">should</span>，<span word="were">were</span>置于句首，采用倒装语序，而句意不变。 <span word="Had">Had</span> <span word="he">he</span> <span word="worked">worked</span> <span word="harder">harder</span>，<span word="he">he</span> <span word="would">would</span> <span word="have">have</span> <span word="got">got</span> <span word="through">through</span> <span word="the">the</span> <span word="exams">exams</span>.如果他学习刻苦些，他就会通过考试了。 <span word="Were">Were</span> <span word="she">she</span> <span word="younger">younger</span>，<span word="she">she</span> <span word="would">would</span> <span word="do">do</span> <span word="it">it</span>. 如果她再年轻点，她会做这件事的。 <span word="Should">Should</span> <span word="it">it</span> <span word="rain">rain</span> <span word="next">next</span> <span word="week">week</span>， <span word="the">the</span> <span word="farmers">farmers</span> <span word="would">would</span> <span word="have">have</span> <span word="a">a</span> <span word="good">good</span> <span word="harvest">harvest</span>.倘若下周下雨，农民就会有好收成。 二、混合(时间)错综型虚拟条件句 通常情况下，在非真实条件句中主句和从句的谓语动词所指的时间是一致的，但有时也可能指不同的时间，这时要根据上下文的意思采用不同的谓语动词形式。即：从句和主句根据各自谓语动作发生的时间不同，采用相应的谓语动词形式。 1.从句表示过去，主句表示现在</p>
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