摘要： 此题系2001年之(24)题 Selecting a mobile phone for personal use is no easy task because technology so rapidly. A. is changing B. has changed C. will have changed D. will change 答案 :A 通过率 :57% 测试语言点 :动词时态的实际应用 . 要吸取的经验 :时态在实际应用中才能学会. 试题详析 :is changing 表示“目前正在变化之中 .has changed表示“目前已经有了变化.与从前不同了 .will have changed表示“预计将来某个时候会发生变化.产生不同的结果 .will change表示“将来某个时候会有变化.但是变化结果 .尚未可知 . 仅仅用汉语讲解是不行的.请仔细对照此题与下列句子的不同含义 : Nowadays selecting a mobile phone for personal use like the one I’m used to is far more difficult than in my days ; you see , there are so many new models that it is impossible for an old man like myself to tell which is more like the one I’m familiar with or which is better than which ; technology has changed and I’m too old to get used to so many new things . I don’t want to spend so much money on such a mobile phone . An ordinary one will do . And I’m sure in a few months much better and more advanced models will be produced. Technology will change and production cost will be reduced ; mobile phone will be as cheap and popular as ordinary phone today . By the year of 2008 when Olympic Games are to be held in Beijing , mobile phone production technology will have changed so rapidly and so greatly that those tiny things for personal use will cost less than half of the price we have to pay today . That’s why I don’t want to give away this old one of mine . I’m waiting for the time when the mobile phone in my hand will be one of the most advanced models in the world . 第二节 书面表达训练 试将这个短文(Weight On And Off The Earth)的每句话用尽可能不同的句型改写 .全文10个句子大约能够改写成19种不同的句子 : WEIGHT ON AND OFF THE EARTH (1) Because we can feel that things are heavy , we think of weight as being a fixed quality in an object , but it is not really fixed at all . (2) If you could take a one-pound packet of butter 4,000 miles out from the earth , it would weigh only a quarter of a pound . (3) Why would things weigh only a quarter as they do at the surface of the earth if we took them 4,000 miles out into space ? (4) The reason is this : all objects have a natural attraction for all other objects ; this is called gravitational attraction . (5) But this power of attraction between two objects gets weaker as they get farther apart . (6) When the butter was at the surface of the earth , it was 4,000 miles from the centre ( in other words the radius半径 of the earth is 4,000 miles .) (7) When we took the butter 4,000 miles out , it was 8,000 miles from the centre , which is twice the distance . (8) If you double the distance between two objects , their gravitational attraction decreasestwo times two . (9) If the distance is three times it gets nine times weaker . (10) If you take two objects four times far away from each other , their power of attraction gets sixteen times weaker

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