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If the traffic lights are red, the traffic must stop. Then the people on foot can cross the road. If the lights are green, the traffic can go and people on foot mustn't cross. In the morning and in the evening when people go to or come back from work, the streets are very busy. The traffic is the most dangerous then. When you go by bus in England, you have to be careful, too. You must always remember the traffic moves on the left. So you must be careful. Have a look first or you'll go the wrong way. In many English cities, there are big buses with two floors. You can sit on the second floor. From there you can see the city very well. That'll be very interesting. 46. Before you cross a street in London, you must look to _______. A. the right side only B. the left side only C. the left first and then the right D. the right first and then the left 47. When you drive a car in England, you must _______. A. drive on the left B. drive on the right C. ignore (忽视) the traffic lights D. go very quickly 48. If the traffic lights are green, the traffic _______. A. can go B. must be careful C. mustn't go D. must stop 49. In England you can see some buses _______. A. with two chairs B. with two rooms C. with two floors D. with two drivers 50. Which of the following is right? A. Before you cross the street, you must look to the left first and then the right. B. If the lights are red, the traffic mustn't stop. C. You must drive cars on the left in England. D. In the morning and in the evening when people go to or come back from work, the traffic is not dangerous at all. B Laptop computers are popular all over the world. People use them on trains and airplanes, in airports and hotels. These laptops connect people to their workplace. In the United States today, laptops also connect students to their classrooms. Westlake College in Virginia will start a laptop computer program that allows students to do schoolwork anywhere they want. Within five years, each of the 1500 students at the college will receive a laptop. The laptops are part of a $10 million computer program at Westlake, a 110-year-old college. The students with laptops will also have access to the Internet. In addition, they will be able to use e-mail to "speak" with their teachers, their classmates, and their families. However, the most important part of the laptop program is that students will be able to use computers without going to computer labs. They can work with it at home, in a fast-food restaurant or under the trees-anywhere at all! Because of the many changes in computer technology, laptop use in higher education, such as colleges and universities, is workable(可行的). As laptops become more powerful, they become more similar to desktop computers. In addition, the portable computers can connect students to not only the Internet, but also libraries and other resources. State higher-education officials are studying how laptops can help students. State officials are also testing laptop programs at other universities, too. (责任编辑：admin) |