21. Part 2: Vocabulary Cloze
Today, we find robots in lots of different places from factories to hospitals. In car factories, robots do boring, dangerous or difficult (1) ____ such as cutting metal or painting the (2) ____ of the car. Some robots (3) ____ museums at night. Others vacuum the floors in offices and homes! These robots don't look like people, but they are similar. In humans, the brain sends (4) ____ to different parts of the body and controls its movements. In robot technology, a main computer controls the movements of the robot in the same (5) ____.
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26.
Robots are very useful for (6) ____ space. Russian robots walked on the Moon in the 1979s, and the Americans landed two robots on Mars in 2004. But why send robots into space? Well, robots can go to places that are dangerous for humans. They don't (7) ____ oxygen or food and drink, and they can survive extreme temperatures. In space this is important. Temperatures can (8) ____ from I20oC in the sun to – I00oC in the dark! These days, the most (9) ____ robots can hear, see and make decisions. They have AI or 'artificial intelligence'. In the future, we will use robots in many more different ways. Doctors will use very small robots called nanobots to (10) ____ illnesses. They are so small that you can't see them!
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31. Part 3: Error Correction