2015年英语专八改错练习题及答案解析(11)
教程:专八改错  浏览:1099  
  • 提示:点击文章中的单词,就可以看到词义解释
      下面是2015年英语专八改错练习题及答案解析(11),希望考生认真训练,获得不错的复习效果。

      One important outcome of the work on the expression of genes in developing embryos

      is sure to be knowledge that can help preventing birth defects. Just as promising (26)

      is the possibility of unraveling the complicated writing (27) of the brain. A mechanic

      gets valuable insight how an (28) automobile works by rebuilding car engines;

      similarly, neuroscientists can learn how the brain functions from (29) the way it is

      put together. The next step pursuing the (30) goal is to find out how the blueprint

      genes, the home box genes, control the expression of other genes that create the valves

      and piston of the working cerebral engine.

      The protein encoded by the latter genes could change the (31) stickiness of the

      cell surface, the shape of the cell or its metabolism to create the characteristic

      peculiar to, say, neurons or neural-crest cell. Surface proteins may be the (32)

      mechanism, whereby similar programmed cells stick together to form specific structures;

      they might also sense (33)the local environment to help the cell decide what is to do.

      Clarifying those mechanisms will engage the best talents in (34) embryology and

      molecular biology for some times to come. (35) What is perhaps the most intriguing

      question of all is if the brain is powerful enough to solve the puzzle of its own creation.

      答案与解析:

      26.preventing改为prevent

      27.complicated改为complexion

      28.sight后加into

      29.neuroscientist改为a neuroscientist

      30.pursuing后加in

      31.later改为latter

      32.similar改为similarly

      33.去掉is

      34.times改为time

      35.if改为whether

    0/0
      上一篇:2015年英语专八改错练习题及答案解析(10) 下一篇:2015年英语专八改错练习题及答案解析(12)

      本周热门

      受欢迎的教程

      下载听力课堂手机客户端
      随时随地练听力!(可离线学英语)