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考研
The idea that people might be chosen or rejected for jobs on the basis of their genes disturbs many. Such【B1】______may however,
The idea that people might be chosen or rejected for jobs on the basis of their genes disturbs many. Such【B1】______may however,
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2018-04-27
36
问题
The idea that people might be chosen or rejected for jobs on the basis of their genes disturbs many. Such【B1】______may however, be a step 【B2】______ , thanks to work just published in Current Biology by Derk-Jan Dijk and his colleagues at the University of Surrey, in England. Dr. Dijk studies the biology of timekeeping—in particular of the part of the internal body-clock that 【B3】______people to sleep and wakes them up. One of the genes involved in 【B4】______ this clock is known as PER3 and【B5】______in two forms. Dr. Dijk’s work【B6】______that one of these forms is more conducive to night-shift work than the other.
The two forms of PER3 【B7】______ into two slightly different proteins, one of which is longer than the other.【B8】______work by this group showed that people with two short versions of the gene are more likely to be "owls", 【B9】______ to get up late and go to bed late. "Larks"—【B10】______, early risers, have two long versions. Pursuing this【B11】______of enquiry, Dr. Dijk and his team have been studying how such people【B12】______to sleep deprivation. Two dozen volunteers, some genetic owls and some genetic larks, were forced to stay awake for two days. The genetic larks reacted to this worse than the owls did.【B13】______, larks given memory tests and puzzles to【B14】______between the hours of four and eight in the morning turned【B15】______far worse performances than did owls.
What【B16】______that may have for employers is not fully clear. Nevertheless, it is intriguing. There may【B17】______come a time when employers【B18】______night shifts will want a blood sample from【B19】______employees—【B20】______to protect themselves against negligence suits should someone have an accident.
【B8】
选项
A、Subsequent
B、Latest
C、Present
D、Previous
答案
D
解析
考查逻辑关系。空格处表示“该研究小组______的研究”。由文章可知,该研究的结果是:拥有两种都可转化为较短蛋白质基因的人更有可能成为“夜猫子”,而“百灵鸟”类型的人则有两种都可转化为较长蛋白质的基因。前文提到的一项研究结果为“其中一种形态比另一种对夜班工作更有益”。由此可以推知,前文的研究是在本处提到的研究的基础上得来的,因此本句的研究应该发生在前。因此正确答案为D.Previous“先前的,以往的”。Subsequent“随后的”;Latest“最近的,最新的”;Present“现存的,当前的”,均不符合文意。
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0
考研英语一
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