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英語(yǔ)有時(shí)也可使用這樣“否定之否定”，即所謂的雙重否定。

There was no one who did not feel sympathy for the victims of the accident.

＝Everyone felt sympathy for the victims of the accident. 沒(méi)有人不同情那位意外的犧牲者。

It is not unusual for a family to have more than one car to use in daily life.

＝It is usual for a family to have more than one car to use in daily life. 一個(gè)家庭在日常生活中使用一輛以上的車子并不特別稀奇。

Nobody had nothing to eat.

＝Everyone had something to eat. 大家都有東西吃。

雙重否定就內(nèi)容而言雖是表肯定的，但和原本就是肯定形者并不完全相同。比方說(shuō)，not unusual (并非不尋常) 與usual (普通) 在感覺(jué)上就不完全相同，多了一點(diǎn)兒猶豫的情緒。

預(yù)測(cè)考點(diǎn)：

1、never...without...型雙重否定，其意為：沒(méi)有～決不……；要～一定會(huì)……每當(dāng)……就；一……就

The dog never crosses a street without stopping at the curb. 那只狗每次要過(guò)街時(shí)，都會(huì)在人行道邊緣停下來(lái)。

He never passes by the zoo without thinking of that fierce tiger.每當(dāng)他從動(dòng)物園走過(guò)時(shí)，他就會(huì)想起那頭兇猛的老虎。

It never rains without pouring.一下雨就是傾盆大雨。

2、雙重否定用于表示肯定的內(nèi)容時(shí)，因形式上仍屬否定句，所以附加問(wèn)句為肯定形。如：

No Japanese breakfast is complete without misosoup, is it? 沒(méi)有味噌湯的日式早餐就不夠完整，不是嗎?