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Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.In a telephone survey of more than 2,000 adults,21% said they believed the sun revolved (旋转)around the earth. An 1 7% did not know which revolved around 2 . I have no doubt that 3 all of these people were 4 in school that the earth revolves around the sun; 5 may even have written it 6 at test. But they never 7 their incorrect mental models of planetary (行星的) 8 because their every day observations didn’t support 9 their teachers told them: People see the sun moving 10 the sky as morning turns to night,and the earth seems stationary (静止的) 11 that is happening. Students can learn the right answers 12 heart in class,and yet never combined them 13 their working models of the world. The objectively correct answer the professor accepts and the 14 personal understanding of the world can 15 side by side,each unaffected by the other. Outside of class,the student continues to use the 16 model because it has always worked well 17 that circumstance. Unless professors address 18 errors in students’ personal models of the world,students are not 19 to replace them with the 20 one.

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I tend to accept any idea put forward by experts on TV. One day, a sociologist proposed that the1society has been consuming modern humans little by little. For fear that I would become a victim of the consumer society. I 2hurried to a bicycle shop in my neighborhood. 3the shopkeeper Mr. Johnson was selling me the bicycle, he said, “This is the best thing you4have done. Life has become hopelessly 5. A bicycle is simple, and it brings to you 6things: fresh air, sunshine and exercise.” I agreed. Happy as a child, I got on the bicycle and headed out onto the streets. After some time, I 7at the other end of the town. I was 8that this simple vehicle could let me9long distance in a fairly short time. But how 10did I really go?Since I hated to be 11,I went back to Mr. Johnson and asked him to 12an odometer on my bicycle. He agreed, but 13,“An odometer without a speedometer is like a 14without a knife.” I admitted he wasright and in a few minutes, the two devices were 15to the handlebars of my bicycle. “What about a horn?” he then asked. “Look, this horn is no larger than a matchbox and has many 16.” Attracted by these functions, I bought the horn.“You can’t leave the back part 17.” noted Mr. Johnson. He fixed a metal box with buttons18the seat, and said, “Is there anything better than this oven when you feel 19on your way? I can give you a special discount.” I was not strong enough to 20the offer.“I congratulate you once more; this is the best thing you could have done,” said Mr. Johnson in the end.

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“Mum, can I invite my classmate Brett over to stay tomorrow night, please? It’s Friday, and we don’t have any 1. Can I, please?” Mum was sitting at the kitchen table. Dad was2 next to her, resting his head on his arms. Mum could 3that James wanted so badly to have his friend over.“I’m so sorry, James,” she said.“I’m never allowed to have friends come to the house? Why, Mum?” James asked sadly, almost in4.“I know it’s5for you,” Mum said softly. “But I’m just worried other people might think we’re a little …strange. And then they would make fun of you.”“No, they wouldn’t, Mum,” James protested. “We’re not6at all. We’re just ordinary people.”Mum sighed heavily. “To tell you the truth, James, my neck has been so painful that it’s give me a heavy 7. And your poor father—he doesn’t feel 8. He really needs a rest.”“I can help, Mum!” James said. “9 I can make you and Dad feel better, can Brett come over? Please?”“Well…” Mum began.“Great! Thanks, Mum!” James almost shouted. “Just sit there, don’t move.” He rushed over to the kitchen drawer and10 what he needed—two spanners(扳手). “Hang on, Mum,” he said. “This won’t take a second.” After some 11, James was finished. With a smile of12 on his face he said, “There! How does that feel?” “Oh, James,” Mum said. “That’s much better! How did you do it?”“Easy,” James said13. “Dad had tightened your neck bolts (螺栓)too much! I just14 them slightly! I learned that in robotic science at school.”“What about your father? Can you15him?” asked Mum.“I’ll try,” James replied. He 16up Dad’s hair at the back of his neck, and plugged the electric wire into Dad’s head. Then he turned the 17on. Dad opened his eyes and18immediately. “He just let his19 run too low, that’s all,” James said. “Shall I tell Brett to come over straight after school tomorrow?”“I guess so,” replied Mum. “Your friends will just have to20that we are a very unusual family. Thanks, son!”

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