Para.4 The difference between robots and other machines.
Paras.5-7 Technicians and engineers are trying to design new types of robots. (will be able to see objects; will have a sense of touch; will make critical decisions.)
Ⅱ New Words
词汇精讲:
1.efficiency : n . 效率,功效
派生词:efficient a. 有效率的; inefficient a. 无效率的;inefficiency n. 无效率
These machines have raised efficiency many times.
A good manager is both competent and efficient. 好的经理应当是称职而且有效率的。