2017年6月英语六级语法知识：条件句思维导图

Shewouldhavecomeifwehadinvitedher.

IfIhadn’ttakenyouradvice,Iwouldhavemadeabadmistake,

Youwouldn’thavecaughtcoldifyouhadputonmoreclothes.

有时候,条件从句表示的动作和主句表示的动作,发生的时间是不一致的(如一个是过去发生的,一个是现在发生的).这时,动词的形式要根据表示的时间来调整.这种句子可以称为错综时间条件句.

Ifhehadreceivedsixmorevotes,hewouldbeourchairmannow.

Ifwehadn’tgoteverythingreadybynow,weshouldbehavingaterribletimetomorrow.

有时假设的情况并不以条件从句表示,而是通过一个介词短语来表示.

Withoutmusic,theworldwouldbeadullplace.

Wecouldhavedonebetterundermorefavorableconditions.

Thatwouldhavebeenconsideredmiraculousinthepast.

Butforthestorm,weshouldhavearrivedearlier.

如果条件句从句中包含有were,had,should或could,有时可把if省略掉,并把were,had,should或could放在主语前面.

Hadwemadeadequatepreparation,wemighthavesucceeded.

Shouldtherebeaflood,whatshouldwedo?

Wereitnotfortheirassistance,wewouldbeinseriousdifficulty.