2. 外语
  3. New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study

New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study

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问题 New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before.
选项 A、makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before
B、make it possible to study, in greater detail, the effects of calefaction, or warming,of a river than ever before
C、have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river
D、make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before
E、has made it more possible than ever before to study in greater detail the effects of calefaction, or warming, of a river
答案C
解析 本句的主语new techniques决定其谓语应该为复数形式的动词，由此可排除A、E；D中有三个缺陷：(1)本句强调的是“进行研究”这个动作，而不是指“研究的结果”，用thestudy取代to study是没有道理的；(2)由句中的in greater detail表明了在此新技术存在之前已有过研究，那么用make possible the study就是前后矛盾的；(3)than ever before本身就是一种习惯表达，在than之后补出it反而是画蛇添足。B、C间的选择更为困难。细读B、C，两者之间有两点区别：(1)时态；(2)B中，in greater detail离比较词than很遥远，而C中两者紧挨在一起。从时态上，很难辨别孰对孰错；但根据它们在比较中的差异，完全可以断定C优于B。因为：B中形容词比较级作为插入成分而比较连词than却作为主要成分的表达，这是不可以接受的；同时，两者分隔太远也会影响表达效果。
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