課本中不會(huì)教你的[N]495　not…without

495　not…without

◎ not…without是一種雙重否定結(jié)構(gòu)，表示的是肯定含義，意為“沒有……不，只有……才”，也可以用never…without。

Man can't live without food. 人沒有食物不能活。

They can't finish the work on time without your help. 沒有你的幫助，他們就不能按時(shí)完成工作。

Don't enter the room without knocking at the door. 不敲門勿進(jìn)房間。

She never speaks English without making mistakes. 她一說英語就出錯(cuò)。

I never see the picture without thinking of her. 我看見這幅畫就會(huì)想起她。

There is no smoke without fire. 有煙就有火。