【正文】 re on the ship? How many are in “hibernation”? Five on the ship, three in hibernation. 2. Why do Frank and Dave talk about turning HAL off? The 9000 puter on Earth says that HAL has made a mistake and they begin to get worried. Listen to the story of HAL and answer the questions. 3. Why does HAL start killing the astronauts? HAL knows the real purpose of the trip and he must do everything he can do to stop the men from turning him off. 4. Why does HAL refuse to let Dave back into the spaceship? Because Dave will disconnect him. 5. What feelings does HAL have when he is being turned off? He is afraid. 6. Why does HAL sing a song before he “dies”? Because he has gone back to his original state. Finish Exercises 7, 8 on page 23. 。Lesson 2 Artificial Intelligence What is artificial intelligence? It is the science and engineering of making intelligent machines, especially intelligent puter programs. 1. What science fiction films have you seen that are about intelligent robots or robots that look like humans? 2. How did the robots behave t