100个虚拟语气英语

1、l would/should/could/might主句谓语中的should主要用于第一人称后；would表示结果还表示过去经常常常做某事，might表示可能性，could表示能力、允许或可能性。比较：If you tried again ，you would succeed. 要是你再试一试，你就会成功的。 (would表结果)If you tried again， you might succeed. 要是你再试一试，你可能会成功的。 (might表可能)If you tried again ，you could succeed. 要是你再试一试，你就能成功了。(could表能力)2、错综时间虚拟条件句 即条件从句与主句所指时间不一致，如从句指过去，而主句即指的是现在或将来，此时应根据具体的语境情况，结合上面提到的三种基本类型对时态作相应的调整：If it had rained last night, the ground would be wet now. 要是昨晚下过雨的话，现在地面就会是湿的。You would be much better now if you had taken my advice. 假若你当时听我的话，你现在就会好多了。3、If虚拟条件句的否定（含蓄条件句） 常考两个句型：If it weren’t for…和If it hadn’t been for…，其意为“若不是(有)” “要不是”。如：If it weren’t for water, no plant could grow. 要是没有水植物就无法生长。If it hadn’t been for your assistance ，we wouldn’t have succeeded.=But for your assistance ，we wouldn’t have succeeded.=Without your assistance ，we wouldn’t have succeeded.如果没有你的帮助，我们不会成功的。4、If虚拟条件句的倒装形式，即把were, had, should置于句首。例：Were I in school again (= If I were in school again), I would work harder.如果我能再上一次学，我会学习得更努力。Had you asked me, I would have told you. (=If you had asked me,…)如果你问我，我会告诉你。

1， 与现在的事实相反：从句用过去式，主句用would/could/might/should/+动词原形。2、与过去的事实相反：主句用would/could/should/might/+have+ done , 从句中过去完成时。3、与将来的事实相反：主句用：should/could/would/might/+动词原形，从句用should do (可能性最大)，过去式(可能性一般)were to do (可能性最小)。

虚拟语气在各类从句中的用法

1，I lifted the chair so that I could be seen 我举起椅子就是为了能被看见 (状语从句)

状语从句中常见连接词：as if 好像，as though 好像，in order that 为了，for fear that 生怕，In case 万一，lest 以防万一。

2、主语从句： It is +形容词 +that+ 主语+(should+动词原形)，should可以省略。

3、宾语从句常见句型： 主语+常见动词+that+ 主语+ should+动词原形。

4、同位语从句：虚拟语气常见词汇：，demand 要求，require 要求，proposal提议，advise 建议，order 命令，suggest建议。

不论主语为第几人称，if从句中的be动词均用were；主句中的助动词一定为过去时，且后面接动词原形