The main activities are 1a and 3.
Ⅰ. Teaching aims and demands 教学目标
1. Learn some new words and a phrase: robot, scientist, appear, take the place of, situation, repair, machine, truck, mend
2. Learn some useful sentences:
(1)What can robots do for us?
(2)Robots can take the place of humans to do hard or boring work in some situations.
(3)They can also do lots of dangerous work instead of humans.
3. Learn how to express certainty and uncertainty:
be sure about/ of/to/that
