反译即通常所说的反面着笔译法，是指突破原文形式的束缚，变换语气，把原文中肯定的表达形式译成否定形式，把原文中否定的表达形式译成肯定形式。

一、否定译成肯定

Ice is not as dense as water and it therefore floats.

参考译文:冰的密度比水小，因此能浮在水面上。

二、肯定译成否定

Bicycles offer the perfect eco_friendly method of traveling around the vast and beautiful and flat countryside that surrounds Cambridge.

参考译文:骑自行车在剑桥大学周围的宽广、美丽而又平坦的乡村旅行，是不会对环境造成危害的理想旅游方式。

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