What picture do you have of the future? Will life in the future be better, worse or the same as now? What do you hope about the future?
Futurologists predict that life will probably be very different in 2050 in all the fields of activity, from entertainment to technology. First of all, it seems that TV channels will have disappeared by 2050.Instead，people will choose a program from a “menu” and a computer will send the program directly to the television. By 2050，music，films，programs，newspapers and books will come to us by computer.
In what concerns the environment, water will have become one of our most serious problems. Demand for water will increase ten times between now and 2050 and there could be serious shortages. Some futurologists predict that water could be the cause of war if we don't act now. In transport, cars will run on new, clean fuels and they will go very fast. Cars will have computers to control the speed of the car and there won't be any accidents. Today, many cars have computers that tell drivers exactly where they are. By 2050，the computer will control the car and drive it to your destination.
In the field of technology, robots will have replaced people in factories. Many factories already use robots. Big companies prefer robots—they do not ask for pay rises or go on strike, and they work 24 hours a day. By 2050，we will see robots everywhere—in factories, schools, offices, hospitals, shops and homes.
Last but not least, medicine technology will have conquered many diseases. Today scientists have discovered how to control genes. They have already produced clones of animals. By 2050，scientists will be able to produce clones of people and decide how they look, how they behave and how much intelligence they have. Scientists will be able to do these things—but should they?
56．We can know from the passage that ________.
A. computer will finally take the place of the media nowadays
B. robots will completely have replaced people in factories
C. computers will tell drivers exactly where they are in future
D. it is more convenient to choose programs sent by the computer
57．What's the author's attitude towards the life by 2050?
A. Excited but pessimistic. B. Optimistic but worried.
C. Eager but afraid. D. Confident but cautious.
58．It can be inferred from the last paragraph that ________.
A. all diseases will not be conquered by scientists
B. scientists have known the way to produce genes
C. the clones of human are understanding by scientists
D. the clones of animals have a long way to go