Recently implenmented "shift-worker equations"based on studies of the human sleep cycle have reduced sickness, sleeping on the job, fatigue among shift workers, and have raised production efficiency in various industries. A. RT不变 B.fatigue among shift workers, and raised C.and fatigue among shift workers while raising D.lowered fatigue among shift workers, and raised E.and fatigue among shift workers was lowered while raising 答案C,我想请教各位,那个while后面是个状从省略的形式不? PREP语法笔记上写着,状语从句省略应符合以下两个规则: 第一点,状语从句的主语一定要是主句的主语,即状语从句动作的逻辑主语是主句主语。第二点,状语从句中的working verb一定是be动词,但不要求主句的working verb也是be动词。所以,状从省略可看为状从中省略了主语和be动词,且同省同留。然后我一直很纠结于这个be动词的问题,有没有NN可以指点下迷津。像Q134这个题,补全了的话句子是否应该为: The equations have reduced sickness, sleeping on the job, and fatigue among shift workers, while (the equations have raised) production efficiency. ? 相对的,The equations reduced sickness, sleeping on the job, and fatigue among shift workers, while the equations reduced production efficiency. 这句话能否省略啊?~ 第一句话里头因为是完成时,have done可以理解为状从的working verb是必动词;可是第二句话,一般现在时的话,working verb就是实意动词了,是不是就不能省略了? 这个问题我一直搞不懂啊!!!!!!!!!求帮助,求解救~ -- by 会员 superbat28 (2011/9/3 22:05:44)
我的理解是 还原句子 The equations have reduced sickness, sleeping on the job, and fatigue among shift workers, while (the equations have been) raising production efficiency. 现在完成进行时, shift-worker equations消除了人们的疾病、上班睡觉的现象和他们的疲倦(现在完成时), shift-worker equations同时(现在进行并延续到将来)提高着人们的生产效率。 不知这样理解对不对,这样一来,就满足省略be动词的要求了,意思也比较平行 |