2. 外语
  3. The research on otters’ environmental requirements is surprisingly (i)________. One reason for this has to do with the estimatio

The research on otters’ environmental requirements is surprisingly (i)________. One reason for this has to do with the estimatio

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问题 The research on otters’ environmental requirements is surprisingly (i)________. One reason for this has to do with the estimation of how much they use different areas. Doing so may be (ii)________in some kinds of terrain, such as Shetland where the Eurasian otters are active in daytime and have clear individual markings. There it is possible to identify the individuals over stretches of coast of a few kilometers and to see what kinds of coast they use. However, the field conditions are (iii)________.
Blank (i)      Blank (ii)                                  Blank (iii)
A. problematic D. were suitable only for certain locations G. source for
B. profitable  E. inspired a variety of new technologies   H. adjunct to
C. versatile   F. required a good deal of upkeep           I. return on
选项
答案C,E,I
解析 通读题于，发现空格(ii)最好做，空格(ii)表示在有的地方做这些事可能会怎样，后面说条件是在白天活动并且有着清晰的个体标记(active in daytime and have clear individual markings)，所以空格(ii)选择E。再看空格(iii)，however表示转折，所以结合空格(ii)relatively simple，后面就要体现出与之相反的概念。结合G、H、I三个选项，发现只有I项exceptional符合逻辑，强调这种户外条件的特殊性。意思就是尽管在这些地方做研究相对简单。但是这种实地条件只是一个例外。空格(iii)有的同学可能会错选H项deceptive(欺骗性的)。注意前面在陈述一个事实，并不能因此说其具有欺骗性。结合后两个空格的判断，空格(i)应该表示research整体很难，所以选择C。空格(i)有的同学可能会错选B。注意整个题干并没有体现出争议性，只是说在极个别例外的地方相对简单，整体研究应该是比较难的，所以不能选择B。
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