GMAT prep一道SC,help~

来源:百度知道 编辑:UC知道 时间:2024/04/28 13:24:50
One automobile manufacturer has announced plans to increase the average fuel efficiency of its sport utility vehicles by 25 percent over the next five years,{ amounting to roughly five miles per gallon, and representing }the first significant change in the fuel efficiency of any class of passenger vehicle in almost two decades.

(A) amounting to roughly five miles per gallon, and representing

(B) amounting to roughly five miles per gallon, and it would represent

(C) an increase that would amount to roughly five miles per gallon and it would represent

(D) an increase that would amount to roughly five miles per gallon and would represent

(E) which is an increase amounting to roughly five miles per gallon, representing

OA是D,我选得A,amounting和representing并列做句末伴随状语不对吗?另外D当中的an increase跳过了前面的over the next five years而直接做25 percent的同位语,这种跳跃同位语什么情况下对?

我同意OA的答案,选D。
先说其他的选项。
B中后半句的it无所指,错误。
C中it多余,排除。
E中which is多余,因此也排除。
A的结构是 increase ... by 25% over the next 5 years, amounting to..., and representing.. 修饰成分错误
D中的would表达时态,意思完整。

选D
首先要弄清楚amounting 之后的句子是修饰谁的,这要把握语义,the average fuel efficiency 的increase { amounting to roughly five miles per gallon, and representing }the first significant change in the fuel efficiency of any class of passenger vehicle in almost two decades.这才是原句要表达的意思,那A选项显然有歧义地可以理解修饰成了原句的主语One automobile manufacturer,为了避免这个语义可以引入一个如D选项的同位语从句,强调后面的句子修饰的逻辑主语是an increase。