(Even if) automakers modify commercially produced cars to run (on) alternative (fuels), the cars won’t catch on in a big way (wh

admin2008-12-26  33

问题 (Even if) automakers modify commercially produced cars to run (on) alternative (fuels), the cars won’t catch on in a big way (when) drivers can fill them up at the gas station.

选项 A、Even if
B、on
C、fuels
D、when

答案D

解析 改when为unless。本题考查连接词的用法。从句意看,讲话人是在谈论一种新型的、靠多种代用燃料作动力的汽车,而这种汽车无论用何种代用燃料,它首先必须能在加油站加燃料才能得到司机们的青睐。因此,此处需要一个连词来引导条件从句而非时间从句,所以应将when改为unless,意为"除非、如果不",相当于if…not...。
转载请注明原文地址:https://jikaoti.com/ti/WVjRFFFM
0

最新回复(0)