49、The Nobel Prize in chemistry was awarded to three scientists for their discovery that plastic can be made electrically conductive--an advance that has led to improvements in film, television screens, and windows.
　　(A) that plastic can be made electrically conductive--an advance that has led
　　(B) that plastic can be made electrically conductive--this advance leading
　　(C) that plastic can be made to be electrically conductive, and this advance led
　　(D) of plastic's ability to be made electrically conductive, with this advance leading
　　(E) of plastic being able to be made electrically conductive--an advance that has led
　　原文意思：
　　诺贝尔奖被颁给了三个科学家由于他们发现了塑料能导电，这个发明有一些影响
　　题目分析：
　　读完 A，发现 A 选项逻辑通顺，并且 A 选项说的很像犀牛望月式（听不懂这句话就证明上课没有好好听讲） ， 先留着。 B用this advance， 这个this实无必要， 干掉。 C用and this advance，语义后办部分无法和前面形成并列关系，这个 and 不对，并且也用 this，干掉。D 和 E 都用of，of 后面跟短语，that 后面跟句子，句子说的是个事情，而短语说的不是个事情，就好像 discovery that yingji kill people，强调的英吉杀人这个事情，而如果用 discovery of yingji who kill people， 强调的就不是英吉杀人这个事情， 而是杀人的英吉这个人了， that和 of 引导的东西在语义的重心上是不一样的，而 advance 后面所说的是一个事情，这个事情会把 advance 带来的影响说出来，所以用 that。

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