【分析】本句为复合句，主干为Few people turn down a discount。at tollbooths为地点状语。to avoid using the EZ-Pass system为不定式作状语。that引导的定语从句that can track automobile movements修饰the EZ-Pass system。

【译文】很少有人会拒绝使用在收费站能打折的易通收费系统，该系统能够追踪汽车的行车路线。

27. Privacy economist Alessandro Acquisti has run a series of tests that reveal people will surrender personal information like Social Security numbers just to get their hands on a pitiful 50-cents-off coupon (优惠券). (2008年6月)

【分析】本句为复合句，主干为Alessandro Acquisti has run a series of tests。Privacy economist作Alessandro Acquisti的定语。that引导的定语从句that reveal people… coupon修饰的是a series of tests。to在这里表目的。

【译文】隐私权经济学家Alessandro Acquisti做了一系列测试，测试显示，人们会为了得到少得可怜的50美分优惠券而轻易地就将像社会保险号码这样的个人信息提供出来。

28. When you consider that nearly three out of four Americans have seen the game show Who Wants to Be a Millionaire? you can understand the power of television to communicate with a large audience. (2008年6月)

【分析】本句为复合句，主句主干为you can understand the power，从句为when引导的时间状语从句When you consider…Millionaire?。从句中又包含一个由that引导的宾语从句that nearly…Millionaire?，作consider的宾语。

【译文】当你考虑到几乎每四个美国人中就有三个看过电视游戏节目《谁想成为百万富翁？》，你就会明白电视在与大量的观众交流方面的巨大威力了。

29.Global warming may or may not be the great environmental crisis of the 21st century, but — regardless of whether it is or isn’t — we won’t do much about it. (2008年6月)

【分析】本句为并列句。句子主干为Global warming…,but we won’t… about it。regardless of意为“不管，不顾”；whether it is or isn’t 中的it指代的是并列连词but前的句子。

【译文】不管全球变暖是否是21世纪最大的环境危机，我们都不会为之倾注太多。