很多考生都知道SAT语法是整个考试中比较容易取得高分的科目，但是当被问到虚拟语气这个常见的语法考点的时候，很多考生都胆怯了，那么今天SAT小编就给大家整理了SAT语法考点之虚拟语气的讲解。
首先我们要知道虚拟语气的分为陈述语气，祈使语气，虚拟语气三种，简单的说虚拟语气是相当于if条件从句的内容不可能实现，或实现的可能性很小的时候，要对if条件句的主语的动词形式进行适当变化。
虚拟语气分为三种考察形式：
1,与现在相反
If从句表达的意思和现在情况相反或目前不可能实现
If I had time ,I would go now
If 条件句：did 主句：would+do
这里需要注意的是，be动词在虚拟语气中必须用were，不管他的原型是is，am 还是are。
2,与过去相反
If从句所表达的意见与过去事实相反
If he had taken my advice, he would have succeeded in the test.
条件状语从句：had+过去分词;主句：would(should, could, might)+have+过去分词。
3.与将来相反
If从句的内容与将来的情况或事实相反或将来实现的可能性很小。
If ishould/were to win a lottery of 10million dollars,I would buy you a big house.
If 条件句：should do/were to do 主句：would+do
我们进行了理论的讲解之后呢，下面我们来进行实战练习一下吧
1. I enjoyed the movie very much. I wish I _____ the book from which it was made.
A. have readB. had read C. should have readD. are reading
解析：B，我非常喜欢这个电影，我真希望我读过那本书，整个句子是与过去时态相反，wish后面用虚拟语气，所以从句用过去完成时。
2. You are late. If you _____ a few minutes earlier, you _____ him.
A. come; would meetB. had come; would have met C. come; will meet D. had come; would meet
解析：解析B，你来晚了，如果你能早一点早你就会遇见他。条件句表示与过去事实相反，主句用过去将来完成时，从句用过去完成时
以上就是小编给大家分享的SAT语法考点之虚拟语气的讲解，各位考生在备考中要有针对性的练习，希望对大家有所帮助。
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