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第三部分:阅读理解(共20小题;每小题2分,满分40分) 阅读下列短文,从每题所给的四个选项中(A,B,C和D)中,选出最佳选项. A Light travels at a speed which is about a million times faster than the speed of sound. In one second, light travels about 300,000 km, but sound travels only 0.334 km. You can get some idea of this difference by watching the start of a race. If you stand some distance away from the starter, you can see smoke come from his gun before the sound reaches your ears. This great speed of light produces some strange facts. Sunlight takes about 8 minutes to reach us. If you look at the light of the moon tonight, remember that the light rays left the moon 1.3 seconds before they reached you. The nearest star is so far away that the light which you can see from it tonight started to travel towards you four years ago at a speed of nearly 2 million km per minute. In some cases, the light from one of tonight's stars started on its journey to you before you were born. Thus, if we want to be honest, we cannot say, "The stars are shining tonight." We have to say, "The stars look pretty. They were shining four years ago but their light has only just reached Earth." 51. Light speed is _____ than sound speed. A. millions times faster B. a million times slower C. about millions of times faster D. about a million times faster 52. If you stand 200 meters away from a man who is firing a gun to start a race, you will find out that ___ A. you can hear the gun before you see the smoke B. sound does not travel as fast as light C. the sound of the gun will reach you before the man fires his gun D. sound travels about a million times faster than light 53. The light of the nearest star you see tonight has been ____ for years. A. on the earth B. on the moon C. away from the sun D. away from the star B The American book Who Moved My Cheese has been a bestseller all over the world. It teaches people how to face changes in their lives. Now its author Spence Johnson has written a book just for teens. The book tells us that when facing change in our lives, like a new school or new friends, don't be afraid. Instead, use this change to make a better life. The book gives an example of a change at school. A school is changing from having two terms to three terms because there are too many students. Several teens are talking about this. Most of them are unhappy and worried. But Chris is not. He laughs and tells a story about two mice, two "little people" and some cheese. The four are in a maze looking for the cheese. Here, cheese means something important in life, like moving to a new class or getting into college. But they find the cheese is gone. The mice realize that they can't change what has happened and have to find more cheese. This means finding different dreams. The little people, however, can't do this. They are afraid of change so they find no cheese. After Chris finishes the story, the friends understand one thing: to get more cheese, move in a new direction quickly. His friends understand how this can be used in the changes all teens face, such as doing well at school or having good relationships or just feeling good about yourself. 54. What does the text mainly discuss A. Never change in our life B. Change when you like to do C. Change with the changes D. Pay attention to the changes. 55. The underlined word "four"(paragraph 3)refers to ______. A. Mice and little people B. Students C. Cheese D. Readers 56. In our lives, we should learn from _________. A. mice B. little people C. Chris D. Spence Johnson 57. Which of the following statements is true A. The author is Britain B. There are three terms in every school. C. Most teens don't understand Chris' story D. The book tells teens how to face changes in their lives C (责任编辑：admin) |