1. The gene is activated by a specific protein. 这种基因由一种特异性蛋白激活。
2. Video cameras with night vision can be activated by movement. 有夜视功能的摄像机能被物体的活动激活。
3. Then there are the taste receptors, and finally, the smell, activated when we inhale. 然后是味觉感受器，最后是嗅觉，当我们吸气时就被激活。
4. Brain imaging showed that, on touching the paper, the emotional center of the brain was activated, thus forming a stronger bond. 大脑成像显示，接触纸张时，大脑的情感中心被激活，从而形成更强的联系。
5. The burglar alarm is activated by movement. 这防盗警报器一动就会响。
