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2017年12月英语四级语法:虚拟条件句的倒装

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发表于 2017-8-26 12:12:10 | 显示全部楼层 |阅读模式
  我们都知道,在大学英语四级考试中,单独考察英语四级语法的题型很少,但是英语四级语法知识点却贯穿整张试卷,下面是新东方网英语四级频道为大家整理的大学英语四级语法知识,希望可以为大家带来帮助。
          2017年12月大学英语四级语法大全目录
          16.4 虚拟条件句的倒装
          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
          =If you had come earlier, you would have met him.
          Should it rain, the crops would be saved.
          =Were it to rain, the crops would be saved.
          注意:
          在虚拟语气的从句中,动词'be'的过去时态一律用"were",不用was, 即在从句中be用were代替。
          If I were you, I would go to look for him.
          如果我是你,就会去找他。
          If he were here, everything would be all right.
          如果他在这儿,一切都会好的。
          典型例题
          _____ to do the work, I should do it some other day.
          A. If were I   B. I were C. Were I D. Was I
          答案C. 在虚拟条件状语中如果有were, should, had这三个词,通常将if省略,主语提前, 变成 were, should, had
+主语的形式。但要注意,在虚拟条件状语从句中,省略连词的倒装形式的句首不能用动词的缩略形式。如我们可说 Were I not to do., 而不能说
Weren't I to do.
          2017年12月大学英语四级语法大全目录
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