1. He felt an irresistible impulse to jump.
    他突然有个无法抗拒的冲动, 想跳下去.

2. Her first impulse was to go round all the rooms looking for the thieves,
    她第一个条件反射是各个房间搜寻一下窃贼，

3. Acting on a sudden impulse, I collected several dozen, put them in a paper bag, and took them to Robert.
    我一时冲动，逮了几十只，装进一只纸袋里，带着去找罗伯特。

4. 4. Impulse Control.
    4.克制冲动