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一语法及基础知识第一节虚拟语气过去现在将来

现在的为从句did原主句would should could might +do

过去的从句为为had+did主句would could should might +have done

将来的为从句为were to do did were should+do did主句为四大词+do

三个时态的虚拟分别于三个时间的事实相反

Were should had 三个词可以提前放在一句话的第一位

判断将来时时注意关键的时间词现在时为now将来时为tomorrow

If I had time if qing had gone

现在例句if my lived now,he would give us more shows

过去例句if qing had not gone back to qing dynasty ,she would not have met him

下一个if I had been born 20 years earlier,I would have had chance to marry her

将来例句两个而且三字词提前了I were to win 变成were I to win I should win变成Should I win qingchuan had not gone the eighth son of the emperor

Have 为实义动词时+n 并且have 不放在前面什么意思have为助动词时可以放在前面

第二节介词短语仅代替从句without 如果没有but for 要不是

Without me,what would you do ？本来应该为you would do 但有what 为疑问语气所以But for the earthquake we should not have bought the salt crazily

If it had not been for 其实就是without but for 与if作用一样

第三届错综时间条件句前后时间不一致

If you had taken my advise you would be better now 有明显的时间状语

二表示愿望的虚拟为不可能实现的事

Hope可以实现的愿望wish 不可以实现的愿望

Wish+that +主语+与现在过去将来事实相反

例子I wish （that）从句everyday were my birthday 现在的

I wished(that)I had met jaychou

Would /could+do与将来相反

I wish(that)they would become my enemies in the future

三should+do的虚拟

Should可以省略在一些动词之后一个坚持二个命令四个建议四个要求一个宁愿宁愿坚持建议命令要求一些动词之后+(that)+主+(should)+do

Prefer

Insist

Suggest advise propose recommend

Order command

Require request demand desire

注意insist后面要求应是should do 如果后面是认为断言的意思后不虚拟

The doctor insisted that the boy was （be）badly hurt and insisted that he should be sent (send)to the hospital at once

被动语态be+done suggest 建议（should）do 暗示表明不虚拟

Her pale 苍白face suggested that she was(be)will

同源词用法相同suggested tion ing undesirable 后面都是should +do 一个词衍生好多个词，要掌握那一个词就行

2一个句型之后it is important/ essential/ necessary /strange/ natural /apity/ (should)do

It is important that he （should）not come

（should）不能省略it is (high|about)time that 主+should do 该到做某事的时候了

It is high time that we should study hard 可以改成studied此句型中should do 可以由该动词的一般过去式studied代替should do died

四其他类型虚拟语气1would rather11do12 do rather than do 宁愿做而不愿意做

13that+主语+did1与现在或将来相反21had gone 与过去相反

I would rather that he had not heard it .

2 主句+as if/though+主语+动词

现在did /were 过去had gone 将来w/c+do

He speaks lapanse very well as if he were a japanse

3 if noly 要是什么就好了only if只要

Wish though as if if only 四者虚拟形式相同

If only you had listened to me

4 句1，or /otherwise ,句2

Hurry up,otherwise,wewill be late.

Otherwise前面的和后面的如果都是真实情况就不虚拟

He was very busy ,otherwise,he would have helped you 前面真后面假虚拟

两种用法1would+v原型与现在或将来相反2would +have done 与过去相反

过去好说一半或将来前面的was变后面的will跟着相应的变化不？

5 主句+lest免得/for feer恐怕that should+do原型incase+that 以防万一should+do 此处should 不可省略

可省略的情况should在1244之后长词important should +do(原) 不省略should 情况it is time

第二节倒装

正装主+谓语倒谓语+主1含义动词放在主语之前

动词分1实意动词2助动词1实意又分11及物动词能够直接加名词12不及物动词不能直接加名词助动词2助动词21 情态动词v can/must +v原22am is are was were do does did hava has had

二1 分类11完全倒装整个谓语动词放主语之前12 部分倒装助动词位于主语

前

I passed they passed he passed 不好找就先变否定do did does