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      4. If Newton lived today,he would be surprised by what in science and technology.

         A. had discovered   B. had been discovered

         C. has discovered   D. has been discovered

    4. D

    4. D解析：考査动词时态和语态辨析。 句意:假如牛顿生活在今天，他会对当今 科技中的新发现感到惊异。从句中的谓 语动词应使用现在完成时的被动语态， 故选D项。

    题目来源：2016年周测月考直通高考高中英语必修3外研版 > 周内课时练 12 Period Four Grammar & Writing

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