分析 ,可知本文主要讲了科学家在冰川底下发现了健康活着的细菌,改变了科学家对其生活环境的看法,表明细菌可以在极端的环境下存活,这是对细菌研究的重大发现
解答 DCCD
72.D 根据The new study shifts attention to the other end of the thermometer(温度计).The exciting thing is the idea of pushing the window of acceptable bacterial environments a little bit farther open.可知,这些关于细菌的研究改变了科学家对其生活环境的看法,故答案为D
73.C 根据Looking at the bacteria under a microscope(显微镜),the researchers found that many were in the process of dividing,and healthy under the ice.可知,很多细菌正在分裂并健康的生长,可以判断细菌是活体,故答案为C
74.C 根据The new study points out in many ways that the bottoms of glaciers are probably quite good environments from the point of view of bacteria.可知,细菌可以在极端的环境中生存,故答案为C
75.D 纵观全文,可知本文主要讲了科学家在冰川底下发现了健康活着的细菌,改变了科学家对其生活环境的看法,表明细菌可以在极端的环境下存活,这是对细菌研究的重大发现,故答案为D
点评 做阅读时经常犯错的主要原因是,仅凭读过文章后残留在脑海中的一丝印象来勾选答案,这样便很容易掉入出题人故意设布下的题目陷阱.所谓阅读理解,对于题目的理解一定要忠实于原文,因此,每一道题都应该与原文作全面的对比与核查,再得出答案.也就是说,阅读理解的每一道题目,在原文都应该有明确的出处,我们把这一出处叫做原文相关句,(1)排除与原文相关句主题不一致的选项(2)排除与原文相关句态度相反的选项 (3)排除用于过于极端或负面的选项(4)注意结合文章主旨和主题去排除.
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