虚拟语气算是英语语法中的一个难点，在SAT语法中同样是，但是其实考生掌握其中的使用规律，就会比较容易剖析语法的结构，找到解题的关键点，那么今天就来给大家讲解一下SAT语法考点之虚拟语气的问题。
一.SAT语法考点虚拟语气
虚拟语气是相当于if条件句的内容不可能实现， 或实现的可能性很小的时候，要对if条件句和主句的动词形式进行适当变化。其实虚拟语气主要是从三个时态进行考察的，大家要牢记这三种时态中主从句所用的助动词和动词的形式，一起来看下。
1. if 从句表达的意思和现在的情况相反或目前不可能实现
If I were you, I would beat him.
If 条件句：did, 主句：would+do
2. if 从句所表达的意见与过去事实相反
例句1：If I had never killed the bird, it would have grown up.
If 条件句：had done, 主句：would+have done
3. If条件句的内容与将来事实相反或将来实现的可能性很小
If I were to be with you, you would never scared.
If 条件句：should/were to 主句： would+do
4. 倒装虚拟
在if 条件句中含有should, had, were 时，常常会把if省去，并将shoud,had, were 放在句首》》更多详情点击SAT语法虚拟语气讲解
二.SAT语法真题实例解析
下面我们来通过SAT语法真题进行体会一下SAT语法中对虚拟语气的考察，下面是2014年10月的一道改进句子题。
11.Had she been aware of his poor driving record. Clare would never have allowed Michael to borrow her car.
(A) Had she been
(B) If she would have been
(C) If she was
(D) Were she to be
(E) Should she have been
句意：如果卡莱尔早就知道迈克尔的糟糕的驾驶经历，绝对不会把车借给他。
解析：A，这是一个过去时态的虚拟语气的倒装句，描述的事实是和过去相反的，所以从句用had done,主句用have done.从句用过去完成时态，主语用现在完成时态，B和C，E的主句时态不对，D是将来时的虚拟语气，所以A是正确的。
By painting them this afternoon, the walls would be completely dry by tomorrow evening.
(A) By painting them
(B) If they would have been painted
(C) Were they to be painted
(D) After painting them
(E) They would be painted.
句意：如果这个下午把墙壁喷漆的话，那么明天晚上就会全部变干。
解析：C，根据句子的意思可以判断是对将来的虚拟，ADE中不符合虚拟语气的用法，B中是对过去的虚拟，所以C选项是对将来虚拟的倒装形式。》》更多详情点击SAT语法虚拟语气介绍
以上给大家分享的是关于SAT语法考点之虚拟语气的用法，希望可以给大家一定的参考作用，预祝大家取得理想的SAT考试成绩。
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