学好UKiset语法是我们参加UKiset考试的基础，但是备考中我们难免会有疏漏，想要提升语法成绩，还是要从基础知识点入手，今天就为大家讲解虚拟语气知识点，虚拟语气的内容主要有三大模块，第一模块就是涉及到条件从句部分的内容。这一部分的虚拟语气主要体现在三个方面：基本用法，各自为政，以及含蓄之美。

　　下表就是条件从句虚拟语气的基本用法：

　　虚拟语气在if引导的条件状语从句中，特别注意虚拟语气与倒装的结合，前提是省略if，这种情况多见于过去和将来的假设，具体表现是将if省略，把had, were, should之类词语提前构成倒装。例如：

　　Were I you, I would go.

　　Should it happen, what should you do?

　　Had he recognised me, he would have come over.

　　虚拟语气中的“含蓄之美”指的是含蓄虚拟语气。因为有时假设的情况并不是以if引导的条件从句形式出现，而是通过一些短语等形式暗示虚拟语气的存在，常用的词语有without, but for, otherwise, or等等，此时我们可以从意思上推断出虚拟语气的时间(考试时多数情况是对过去的假设)。

　　But for your encouragement, I would not have been admitted to this university. (过去)Without water, all lives would die. (现在)He felt too tired yesterday, or he would have attended my party. (过去)I was having a meeting, otherwise I would have come to see you off. (过去)虚拟语气的第二模块就是含有should +V的用法，这一部分主要是有关建议和命令的相关从句，包括主语从句，宾语从句，表语从句，同位语从句以及以之相关的形式主语宾语之类的从句。这一部分的词主要有常见的动词有advise, suggest, insist, order, require, recommend, command以及相关名词等等。记忆口诀：一个坚持(insist)，两个命令(order, command)，三个建议(suggest, advise, recommend)，四个要求(ask, require, demand, request)。

　　1. 宾语从句的虚拟语气

　　He insisted that the meeting be put off.

　　The general ordered (that) all the soldiers (should ) leave.

　　He gives orders that the soldiers (should) leave.

　　2. 表语从句的虚拟语气

　　My suggestion is that we (should) stay here for a rest.

　　3. 同位语从句的虚拟语气

　　There is no suggestion that she (should) resign.

　　4. 主语从句的虚拟语气主要体现在It做形式主语的三种情况： It’s +p.p +that ; It’s + adj. +that; It’s + n. +that常用的动词recommand, demand, desire, order, request, require, suggest,command常用的形容词important, necessary, right, advisable, natural, strange, surprising, regretful,urgent, vital, insistent, essential常用的名词duty, pity, no surpise, no wonder, shame, regret其实这些词在句子中其实也有建议命令类似的的意思It’s important that you should take the medicine.

　　It’s a pity that you should refuse the invitation.

　　It’s essential that we should learn some knowledge about fist aid.

　　It’s demanded that all the students should go to the playground.

　　It was suggested that he should join the club activities.

　　5. It为形式宾语的情况实际上是上面形式主语的一种变形，是以it为形式宾语的复合宾语从句，it后面的宾语补足语多为形容词或名词，常见词就是上面形式主语后面的那些词。

　　I consider it vital that he (should) think deeply before acting.

　　We think it necessary that the meeting (should) be put off.

　　关于UKiset语法虚拟语气知识点就介绍到这里了，都是很实用的内容哦，望考生们认真学习研究下，提高自身的能力。想要获取更多UKiset作文思路、UKiset考试机经等更多信息，大家可以线上咨询客服哦！