2. 外语
  3. Many of the unusual behaviors attributed to crows—such as drinking coffee or presenting gifts to people who feed them—are based

Many of the unusual behaviors attributed to crows—such as drinking coffee or presenting gifts to people who feed them—are based

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问题 Many of the unusual behaviors attributed to crows—such as drinking coffee or presenting gifts to people who feed them—are based on (i) ______ and therefore fall into the category of (ii) ______ rather than science.
Blank (i)                             Blank (ii)
A. long-term observations               D. anecdote
B. controlled experiments               E. speculation
C. secondhand testimony                F. hypothesis
选项
答案C，D
解析 空格(i)：
- 方程等号：and并列，同义重复。
- 强词和对应：很多属于乌鸦的异常行为是基于空格(i)因此落入空格(ii)的范畴而非科学。由and并列结构可知两个空格是同方向的，又依据rather than可知空格(i)与science是反义重复，应填入表示“非科学的”。long-term observation长期观测，controlled experiment控制实验，secondhand testimony二手证词，答案选C。
空格(ii)：
- 方程等号：rather than=not，前后取反。
- 强词和对应： 因此这些东西属于空格(ii)的范畴而非科学。本题的强词是science指向空格(ii)，依据rather than取反，可知空格(ii)应填入一个表示“不科学”的词。anecdote奇闻轶事，speculation猜测，hypothesis理论假说，此时只能排除F。再由and可知两个空格同方向，答案选D。
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