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2016考研英语模拟试题及答案:阅读篇(1)

2015-11-30 17:15:26来源:新东方在线

  词汇注释

  stuff 物质

  preamble 开端

  nook and cranny 排列

  potency 力量

  susceptible 易受感染的

  predisposition 易患病的体质

  难句讲解

  1. They know that human DNA acts like a biological computer program some 3 billion bits long that spells out the instructions for making proteins, the basic building blocks of life.

  [简析] 本句话的主干是“They know that…”。they 指的是前面句子中提到的scientists;第一个引导的是宾语从句,some 3 billion bits long修饰computer program,第二个that也修饰computer program;the basic building blocks of life是在解释proteins.

  2. Anderson, who pioneered the first successful human gene-therapy operations, is leading the campaign to put information about DNA to use as quickly as possible in the treatment and prevention of human diseases.

  [简析] 本句话的主干是“Anderson is leading the campaign…”。Who引导的非限定性定语从句,修饰Anderson;to put information…短语修饰campaign,其中的to use…作目的状语。

  3. DNA in their hands has become both a blueprint and a drug, a pharmacological substance of extraordinary potency that can treat not just symptoms or the diseases that cause them but also the imperfections in DNA that make people susceptible to a disease.

  [简析] 本句话的主干是“DNA has become both a blueprint and a drug”。in their hands修饰DNA;a pharmacological substance…是在解释前面的drug,其中的第一个that 引导的定语从句修饰pharmacological substance;第二个that引导的定语从句修饰imperfections.

  4. And if scientists determine that a vital protein is missing because the gene that was supposed to make it is defective, they might be able to give the patient an artificial version of the protein.

  [简析] 本句话的主干是“…they might be able to give the patient an artificial version of the protein”。If引导的是条件状语从句,其中的第一个that引导的是宾语从句,because引导的时原因状语从句;第二个that引导的定语从句修饰gene.


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