Car owners who inflate their tires properly can substantially boost their vehicles' fuel efficiency, since the increase in car-road friction can waste up to five percent of car fuel by under inflation.
a) .....
B) Because the underinflation of tires can waste up to five percent of a car's fuel by increasing car-road friction, car owners can substantially boost their vehicles' fuel efficiency by properly inflating the tires.
Why B is better than A?
[em07][em07][em07]作者: Peace 时间: 2003-4-3 13:16
谢谢你的指点,我没有那本书,不过按照你说的,我仔细读了A and B,觉得A中的by under inflation的确无法搭配。呵呵,我太粗心了
谢谢~作者: Peace 时间: 2003-4-3 23:41
To Oddyuibe.
以下是LZM书里对A,B选项的比较:
1,先补充一点关于by 的用法。 在GMAT中,by 有三种用法:
(1)by + 时间状语 表在....之前
(2)by + 动名词,表动作的方式
(3)by + 名词,表明该名词是前面动作或行为的执行者,
如 the pollution of water by landfills and the pollution of air by incinerators
和 a strike by the transportation union.
在A中,by underinflation 从语法上讲,应是前面“浪费5%的汽油”的动作执行者,但实际上, 该动作已有主语: the increase in car-road fiction, 而同一动作显然不可能有两个动作执行者,所以A错。
B的结构清晰:原因状语从句在前,结果在后; their (car owners)指代明确且直接,用两个
by +动名词表明了动作的方式,反映了句意。作者: oddyuibe 时间: 2003-4-4 00:14
太细腻了,呵呵
谢谢Peace~作者: Peace 时间: 2003-4-4 00:26
To Oddyuibe,
做了一段时间语法题,我感觉到最后,就看你细不细心了。
有些高分题中的选项的差异就在很细微的地方,稍不留神就掉进陷井了。
现在有点如履薄冰的感觉。
Good Luck!作者: oddyuibe 时间: 2003-4-6 12:01
同意,同意,
以后一定会更加细心~
good luck~
Be careful~作者: oddyuibe 时间: 2003-4-6 12:04
嗯,又回味了一下,觉得你说的更有道理了
谢谢~
欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/)