高中英语倒装句型都有哪几种情形？高三考生需要知道的语法知识！

　　众所周知，英语是很多人想要去学习但是就是学不动的一门学科，包括的高中生以及大学生。事实上，要想学好英语其实并不难，首先要背诵精彩的英文句型，只要把句型基础打好了，阅读理解学起来就会不少。下面，小编就给考生们整理了高中英语中倒装结构及相关用法，希望对大家有所帮助。

　　注意下面几种情形的倒装：

　　1. “only + 状语从句”和“not until + 从句”位于句首时，在主句中进行倒装。如：

　　Not until the child slept did the mother leave the room.

　　2. “not only...but also...”连接两个分句，not only位于句首时，倒装在not only所在分句进行。如：

　　Not only were the children moved but also the adults showed their pity.

　　3. “no sooner...than...”句型中的no sooner位于句首时，倒装在no sooner 主句中进行;“hardly / scarcely...when...”句型中的hardly位于句首时，倒装在hardly / scarcely主句中进行。如：

　　No sooner had I gone in the house than it began to rain.

　　4. 当if引导从句表示虚拟语气时，if可省，再把从句中的were，had或should放在主语前面，形成部分倒装。如：

　　Had we been present, such a thing would not have happened.

　　5. 当as引导让步状语从句时，参照下面的形式进行特殊倒装。如：

　　Proud as these women are, they still look very weak. (作表语的形容词提前)

　　Student as he is, he often works in the factory. (作表语的名词提前，同时省去不定冠词a)

　　Hard as she worked, she couldn't support her family. (修饰谓语动词的副词提前)

　　Try as he would, he might fail again. (带助动词的谓语动词提前)