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small set of Tinkertoys in front of each student, and said:‖Make something out of the Tinkertoys. You have 45 minutes today and 45minutes each day for the rest of the week.‖ A few students hesitated to start. They waited to see the rest of the class would do. Several others checked the instructions and made something according to one of the model plans provided. Another group built something out of their own imaginations. Once I had a boy who worked experimentally with Tinkertoys in his free time. His constructions filled a shelf in the art classroom and a good part of his bedroom at home. I was delighted at the presence of such a student. Here was an exceptionally creative mind at work. His presence meant that I had an unexpected teaching assistant in class whose creativity would infect(感染 ) other students. Encouraging this kind of thinking has a downside. I ran the risk of losing those students who had a different style of thin king. Without fail one would declare, ‖But I‘m just not creative.‖ ―Do you dream at night when you‘re asleep?‖ ―Oh, sure.‖ ―So tell me one of your most interesting dreams.‖ The student would tell something wildly imaginative. Flying in the sky or in a time machine or growing three heads. ―That‘s pretty creative. Who does that for you?‖ ―Nobody. I do it.‖ ―Reallyat night, when you‘re asleep?‖ ―Sure.‖ ―Try doing it in the daytime, in class, okay?‖ 28. The teacher used Tinkertoys in class in order to ________? A. know more about the students B. make the lessons more exciting C. raise the students‘ interest in art D. teach the students about toy design 29. What do we know about the boy mentioned in Paragraph 3? A. He liked to help his teacher. B. He preferred to study alone. C. He was active in class. D. He was imaginative. 30. What does the underlined word ―downside‖ in Paragraph 4 probably mean? A. Mistake. B. Drawback. C. Difficulty. D. Burden. 31. Why did the teacher ask the students to talk about their dreams? A. To help them to see their creativity. B. To find out about their sleeping habits. C. To help them to improve their memory. D. To find out about their ways of thinking. D Terrafugia Inc. said Monday that its new flying car has pleted its first flight, bringing the pany closer to its goal of selling the flying car within the next year. The vehicle —named the Transition – has two seats, four wheels and wings that fold up so it can be driven like a car. The Transition, which flew at 1,400 feet for eight minutes last month, can reach around 70 miles per hour on the road and 115 in the air. It flies using a 23gallon tank of gas and burns 5 gallons per hour in the air. On the ground, it gets 35 miles per gallon. Around 100 people have already put down a $10,000 deposit to get a Transition when they go on sale, and those numbers will likely rise after Terrafugia introduces the Transition to the public later this week at the New York Auto Show. But don‘t expect it to show up in too many driveways. It‘s expected to cost $279, it won‘t help if you‘re stuck in traffic. The car needs a runway. Inventors have been trying to make flying cars since the 1930s, according to Robert Mann, an airline industry expert. But Mann thinks Terrafugia has e closer than anyone to making the flying car a reality. The government has already permitted the pany to use special materials to make it easier for the vehicle to fly. The Transition is now going through crash tests to make sure it meets federal safety standards. Mann said Terrafugia was helped by the Federal Aviation Administration‘s decision five years ago to create a separate set of standards for light sport aircraft, which are lower than those for pilots of larger planes. Terrafugia says an owner would need to pass a test and plete 20 hours of flying time to be able to fly the Transition, a re