分词及分词短语用法之练习部分:
(1)On the principle of the conservation of energy, the heat lost must be equal to the heat gained. 根据能量守恒定律,损失的热量必然等于所得到德热量。(lost和gained都是单独的过去分词,作定语,说明heat)。
(2)Average velocity may be defined as the distance traveled divided by the time of travel. 平均速度可定义为通过的距离除以运动所需的时间。(defineas,把定义为。过去分词traveled作定语,说明distance,分词短语dividedtravel也是说明distance的定语成分。)
(3)The kilogramme-calorie is the heat required to raise one kilogramme of water through one degree centigrade. 把1千克水升高摄氏1度所需的热量为1千卡。(过去分词短语requiredcentigrade作定语,说明heat.介词短语throughcentrigrade是raise要求的状语。)
(4)Particles bearing like charges tend to repel one another, whereas particles bearing unlike charges tend to attract one another. 带有相同电荷的粒子相互排斥,而带有不同电荷的粒子则相互吸引。(bearing like charges和bearing unlike charge均为现在分词短语,作定语,修饰particles.)
(5)When a body loses some of its electons, the total of negative charges left in it is less than the positive charge.当一个物体失去一些电子时,该物体中剩下的负电荷就少于正电荷。(left in it是过去分词短语,作定语,修饰charge.Left是leave的过去分词。)
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