2. 外语
  3. Complete the summary below using words from the box. Write your answers in boxes 9-13 on your answer sheet. While the Nutcracker

Complete the summary below using words from the box. Write your answers in boxes 9-13 on your answer sheet. While the Nutcracker

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问题 Complete the summary below using words from the box.
Write your answers in boxes 9-13 on your answer sheet.
While the Nutcracker is more able to cache seeds, the Jay relies【R1】______on caching food and is thus less specialized in this ability, but more【R2】______.
To study their behavior of caching and finding their caches, an experiment was designed and carried out to test these two birds for their ability to remember where they hid the seeds.
In the experiment, the cacher bird hid seeds in the ground while the other【R3】______. As a result, the Nutcracker and the Mexican Jay showed different performance in the role of【R4】______at finding the seeds — the observing【R5】______didn’t do as well as its counterpart.
less more solitary social cacher observer
remembered watched Jay Nutcracker
【R4】
选项
答案observer
解析 利用语法和逻辑分析，该题目只能填名词，且只有“cacher”和“observer”可以待选，其他排除。再利用顺序性定位于段落G倒数第四行“…jay observer were as success-ful as jay cachers whereas nutcracker observers did no better than chance”，所以答案为observer。
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