2. 职称英语
  3. If you left your book on the table overnight, you would find the following m

If you left your book on the table overnight, you would find the following m

游客2023-12-27  77
问题     If you left your book on the table overnight, you would find the following morning that it was still exactly when you had left it, provided nobody had moved it. If a ball is made to roll on a very smooth surface, it will roll a long distance unless something stops it or changes its direction. This tendency of an object to remain at rest unless something moves it and to continue moving unless something stops it is known as the Law of Inertia.
    The following examples show the truth of this law.
     (a)Put a table-cloth on a table and arrange a pile of books on it. Hold one edge of the tablecloth and pull it quickly. The table-cloth will come off, leaving the pile of books undisturbed.
     (b)Place a small piece of cardboard on an open jar and place a coin on it directly over its mouth. Use one finger to flick the piece of cardboard away. You will" notice that the coin drops into the jar.
     (c)Sitting in a car which starts suddenly, you feel you are jerked backwards. In fact, you are not jerked backwards. Your lower half, which is in contact with the cushion, is forced to move forward with the car, and the upper part of your body, which remained at rest, is left behind. [br] This passage, on the whole, is developed by______.
选项 A、time
B、space
C、process
D、example
答案 D
解析 本题考查推理判断。通读文章可知，文章第一段讲的是惯性；后面几段是借助三个例子进一步对惯性进行说明。所以，答案是D。
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