step_by_step_3000第一册Unit11-12_答案及原文.doc

Unit 11 Part I telexes/ fax and electronic mail robots/ production workers new skills every ten years clerical workers unemployment food from home transport/ from home advertising/ the home Business travel/ live video meetings/ the client Tape script: I-Interviewer M-Man W-Woman I: What do you think might happen in the business world in the next 20 years or so? W: Um… there’ll be no more telexes, business will only use fax and electronic mail. M: Mm…Office cleaning will be done by robots. W: Well, I there will be much more unemployment. M: Well, I think, people will have to retain for new skills every ten years. W: I think robots will replace production workers. M: Computers will replace clerical workers. M: People will buy their food from home. W: There’ll be less need for transport, as people will work from home. M: Most consumer advertising will be delivered directly to the home. W: Well, business travel will be replaced by live video meetings. There won’t be any need to go to see the client any more. B. spaceship/ Mars a robot court have gone up under the sea nuclear war / nuclear arms brain waves/ a conversation planet/ tower blocks computers C. C1. 1. Mercury 2. Venus 3. the Earth 4. Mars 5. Jupiter 6. Saturn 7. Uranus 8. Neptune 9. Pluto C2. 8,000 miles 93,000,000 miles 365 1/4 days 35,000,000 miles ≈24,000,000 miles 1/4 million miles Tape script: The Earth is a planet just under 8,000 miles in diameter, moving round the Sun at a distance of 93,000,000 miles, and completing one circuit in 365 1/4 days. It is not the only planet; eight others are known, all with their own special points of interest. Mercury and Venus are closer to the Sun than we are; Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto are farther away. Of course, the nearest to us are Mars, which may approach the Earth to within 35,000,000 miles, and Venus, which has a minimum