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  3. Research on animal intelligence always makes us wonder just how smart humans

Research on animal intelligence always makes us wonder just how smart humans

游客2023-08-23  26
问题     Research on animal intelligence always makes us wonder just how smart humans are. Consider the fruit-fly experiments described by Carl Zimmer in the Science Times. Fruit flies who were taught to be smarter than the average fruit fly【C1】______to live shorter lives. This suggests that dimmer bulbs burn longer, that there is a(n) 【C2】______in not being too bright.
    Intelligence, it turns out, is a high-priced【C3】______. It takes more upkeep, burns more fuel and is slow off the starting line because it depends on learning—a(n) 【C4】______process—instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to stop.
    Is there an adaptive value to limited intelligence? That’s the question behind this new research. Instead of casting a wistful glance【C5】______at all the species we’ve left in the dust I.Q.-wise, it implicitly asks what the real costs of our own intelligence might be. This is on the【C6】______of every animal we’ve ever met.
    Research on animal intelligence also makes us wonder what experiments animals would【C7】______on humans if they had the chance. Every cat with an owner, for instance, is running a small-scale study in operant conditioning. We believe that if animals ran the labs, they would test us to【C8】______the limits of our patience, our faithfulness, our memory for locations. They would try to decide what intelligence in humans is really for, not【C9】______how much of it there is. Above all, they would hope to study a【C10】______question: Are humans actually aware of the world they live in? So far the results are inconclusive.
A)mind B)fundamental C)gradual D)determine
E)advantage F)happened G)spontaneous H)backward
I)aptly J)overcome K)option L)merely
M)tended N)inclination O)perform [br] 【C1】
选项
答案 M
解析 主句缺少谓语动词，空格处应填动词，且可以与to搭配。词库中符合要求的有determine、happened和tended。上一句引出果蝇实验，本句介绍实验结论“通过训练变得更聪明的果蝇，其寿命 比普通果蝇短”，实验结果一般是客观的、带有规律性的，故用tended，tend to的意思是“倾向于；往往”。happen to“碰巧”和determine to“决心做……”都不合句意。
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