GWD-31-Q30

cannahere

The United States petroleum industry’s cost to meet environmental regulations is projected at ten percent of the price per barrel of refined petroleum by the end of the decade
.A: The United States petroleum industry’s cost to meet environmental regulations is projected at ten percent of the price per barrel of refined petroleum by the end of the decade.
B: It is estimated that by the end of the decade the cost to the United States petroleum industry of meeting environmental regulations will be ten percent of the price per barrel of refined petroleum.
C: By the end of the decade, the United States petroleum industry’s cost of meeting environmental regulations is projected at ten percent of the price per barrel of refined petroleum.
D: To meet environmental regulations, the cost to the United States petroleum industry is estimated at ten percent of the price per barrel of refined petroleum by the end of the decade.
E: The United States petroleum industry’s cost by the end of the decade to meet environmental regulations is estimated at ten percent of the price per barrel of refined petroleum.

这道题答案是b

其实b是一种常用的表达方式：it is estimated that ...

可是其他选项我也没看出来有什么大大的错误。。。。。。不小心就选错咧

要怎么分析这题呢

还有projected 为啥要改成estimate呢

zowenny

从时态角度考虑，因为这里是表示将来的 而且it is estimated that 后面也要用将来时

zhenghualiao

我觉得industry’s cost是个不好的表达 c的话 逻辑主语不该是the cost 而该是United States petroleum industry

shalinzz

http://forum.chasedream.com/GMAT_SC/thread-383431-1-1.html

jolinshang

Choice A, C, D, and E are awkward and confusing. In A, for example, the issue is not the industry’s cost but the cost to the industry; also, to meet should be of meeting here, projected at is unidiomatic, and by the end of the decade is placed so that its meaning is unclear. C and E suffer from many of the same problems. The wording of D implies that cost… is estimated in order to meet environmental regulations. B alone makes a logical statement and varies verb tense to indicate that the issue is present estimates of future costs. The question is moderately difficult.