等我一天我来整理一下
好啦,你看看吧
do/be(为例） 虚拟语气主句
条件状语从句
与现在事实相反 did/werewould(could,might)do/be
与过去事实相反 had done/
had been would(could,might)have/been
与将来事实相反did/werewould(could,might)do/be
were to do/be
should de/be
举两个例子吧：
1、我要是你,就采纳他的意见
If I were in your position,I would take his advice.
2、如果我听从了医生的建议,我的病早该好啦
If I had followed the doctor's advice, I would have been all right.
练习一道吧：
--If he_____,he_____that food.
--luckily he was sent to the hospital immediately.
A.was warned;would not take
B.had been warned;would not have taken
C.would be warned;had not taken
D.would have been warned;had not taken
Key: B