英语虚拟式语法

虚拟语气的详细用法是与现在事实相反、与过去事实相反、与将来事实相反三种用法，只需要理解之后进行相关的应用即可。具体的 操作如下：

1、虚拟条件句的三种基本类型：与现在事实相反、与过去事实相反、与将来事实相反。

2、与现在事实相反，条件从句的谓语用过去式，主句谓语用should（would,could,might）+动词原形。

3、与过去事实相反，条件从句的谓语用过去完成时（had+过去分词），主句谓语用should（would,could,might）+have+过去分词。

4、与将来事实相反，条件从句的谓语用过去式（be通常用were），主句谓语用should（would,could,might）+动词原形。

注意事项：

1、书写英语单词的时候一定要认真书写，防止有的字母之间混淆错误。

2、学习虚拟语气的详细用法时可以理解记忆，切不可盲目死记硬背，这样会得不到好效果。

虚拟语气语法要点：一、be-型虚拟式1、用于表示命令、决定、建议等词语之后的that-分句中 a、用在decide,order表示决定或命令等动词之后的that-分句中。例如： He ordered that all the books be sent at once. b、用在advisable,essential,important等形容词之后的that-分句中。例如： It is essential that all the facts be examined first. c、用在decision,demand,requirement等名词之后的that-分句中。例如： There decision was that the school remain closed.2、用于if,though等引导的分句中 be-型虚拟式能用于由if,though,whatever,lest,so long as等引导的分句中表示推测、让步、防备等含义。例如：If he be found guilty,John shall have the right of appeal.二、were-型虚拟式 此用法常用于由if,if only,as if,as though,though引导的条件状语从句和让步状语分句中，表示非真实的条件和让步。例如： If i were you ,i should wait till next week. If only i were not so nervous. 用于某些名词性分句中，此用法还可以用于wish,would rather,suppose,imagine之后的that-分句中，表示一种臆想的，通常是不可能发生的情况。例如： I wish it were spring all the year around. I would rather i were not at the side of the accident.倒装： 一、当主语补语提前时，如果主语结构太长或比较复杂，有可能引起倒装。 Happy indeed are those who receive marvellous news after a long silence.二、当前置宾语由“not a +名词”或者“ not a single+名词”构成时，也会引起倒装。例如： I had a terrible time playing ronlrtte at the casion .Not a winning number did i have all night.三、状语的前置也会引起倒装，有两种情况：全部倒装和部分倒装 例如：the door burst open and in rushed the crowd. in this chapter will be found a partial answer. never have i found him in such a good mood. only yesterday did he find out that his watch was missing. not only did he complain about the food,he also refused to pay for it. so small was the mark that i could hardly see it. (每个句子代表一种用法，就记住例子就好...)

听老师之间的对话学习虚拟语气

虚拟语气A．用wish表示对现在的愿望时，它所引起的宾语从句中谓语动词形式为：过去式（be动词用were）。 B．用wish表示对将来的愿望时，它所引起的宾语从句中谓语动词形式为：would, could, might+ 动词原形。 C．wish用于对过去的事实表示一种不可能实现的愿望时，宾语从句中的谓语动词形式为：had+动词过去分词或could, would + have +动词过去分词。 (2)had hoped引起的宾语从句中备用语动词形式为would+动词原形，表示一种过去未实现的愿望或令人失望的事。 (3)would (had) rather, would as soon, would sooner和would prefer所引起的从句中要求用过去式表示当时或将来的情况，用过去完成时表示过去的情况，表示希望或婉转的责备（4）It’s (high, about) time that 句型中that从句中要求用虚拟语气形式，即动词要用过去式。 由连接词in case, so that ,unless, lest ,for fear that引起的状语从句中，谓语动词要用虚拟形式，即should(might, would)+动词原形（5）虚拟语气用于as if（though）引起的方式状语从句和表语从句中，其动词形式与wish宾语从句的形式相同（6）其它各种句型, as though, suppose, had rather, supposing, if only等等倒装句1)句首的状语若是由often开头或副词only+状语(副词,介词短语或状语从句等)放在句首时: Often did I tell him not to make trouble.2）含有否定意义的副词或连词(如little, scarcely, barely,rarely, seldom,never, no sooner…than, not only,hardly…when…, 等)放在句首时Not only did we lose our money, but we also came close to losing our lives.3）副词so, neither, nor, no more用在句子的开头,表示前面说的情况也适合于另一个人或事物以避免重复的句子,作"也"讲时,引导的句子用倒装语序,例如:He went to the film last night. So did I

1.一般时的虚拟：if...were/动词过去式，would(should,could,might)+动词原形2.对过去的虚拟：if...had done,,would+have done3.对未来虚拟：if...were to do,would+动词原形 我们老师说这种虚拟式不可能发生的哦 希望对你有帮助