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Which of the following is the best title? A. Thanks to the good ideas! B. Return of the white bikes! C. White bikes or not! D. No cars in Amsterdam!C 50 years ago, it was thought that robots would control everything in the future. Now humans control things, but with the help of robots. Robots are good at doing the same job many times. For example, factories use robots for producing goods. Pieces of cars are put together and painted by robots. Robots will do dangerous, dirty and smelly jobs! Unlike humans, they never get tired and don’t need sleep. They also do the job perfectly time and time again. They are used in clean-air computer factories too, because they don’t breathe out dirty air. Robots are useful for working underwater. Humans can work underwater, but they cannot go down very deep. Also, they must come up to the surface very slowly. If they don’t do this, they may become ill and die. Robot submersibles now do many jobs on the seabed. They are controlled from the mother ship through TV cameras. Robots are used in space too. It is much cheaper to send it in a spaceship into space than a manned one. In space, robots measure things, carry out experiments and send the information back to earth. When they land on another planet or on the moon, a small car can travel around to collect and test rocks. When the work is done, the robot can stay on the planet. There is no need to bring it back to earth. Robots are useful in medicine too. Once doctors had to cut bodies wide open to reach certain parts of the body. Now with keyhole surgery, they only have to make a small hole. They can watch what they are doing on a TV. This is much better. First they can reach parts of the body more easily. And because they cut less, the patient gets better more quickly. Doctors can control a surgeon robot with their voice. They say “left-down-stop as they watch the TV. The robot deep inside the body follow the instructions and carries out the orders. 查看更多

 

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      People have enjoyed the benefits (好處) of cycling in Amsterdam for years. It is a good city for
cycling because it is flat (平坦) and so is convenient for bikes. There are also plenty of places for bicycle
parking and most streets in the city centre have a bicycle path. Today some people call Amsterdam the
"City of Bicycles: because it's convenient for people to cycle there."
      In the 1960s, a group of cycling fans had an idea. They believed that it would be better for everybody
if cars weren't allowed in the city centre and only bicycles were. They were hopeful that this would help to
save energy, reduce pollution and provide free public transport. The group painted hundreds of bicycles
white and placed them in lots of neighborhoods around Amsterdam for people to use. Anyone was allowed
to take them and use them for short journeys. When someone finished a journey they would leave the bike
there for someone else to use. The problem was that it didn't work-thieves took all the bicycles within weeks!
      However, more than thirty years later, the "white bike" is back in town this time with a computer chip to
record its every move! To take a bicycle, you have to put a special card inside. The new"white bike" is not
actually white but is an unusual design with bright colors. The bikes are parked at special parking place that
has enough room. 
     There is already less traffic in central Amsterdam, because both locals and tourists have used the white
bikes. Indeed, thanks to the good ideas of lots of people, like the cycling fans in the 1960, many people
around the world have been enjoying city centre streets without cars for many years.
1. Why Amsterdam is called the "City of Bicycles"?
[     ]
A. Because it's convenient for people to cycle there.
B. Because there are so many bicycles there.
C. Because most streets in the city center have a bicycle path.
D. Because there are lots of places for bicycle parking.
2. The first "white bikes" plan failed because _____.
[     ]
A. all the bicycles were white
B. no enough bicycles were provided
C. thieves took the bicycles
D. people couldn't rightly park the bicycles
3. How does the "white bike" plan work thirty years later?
[     ]
A. All the bikes are parked at special parking places.
B. All the bikes should be kept properly by special people
C. Enough room is left for keeping bicycle.
D. By using both computer and special parking places
4. Which of the following is the best title?
[     ]
A. Thanks to the good ideas!
B. Return of the white bikes!
C. White bikes or not!
D. No cars in Amsterdam!

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