Shoals of fish are able to move and turn in seamless formation by following

游客2024-10-18 46

问题 Shoals of fish are able to move and turn in seamless formation by following simple rules that are like those used by car drivers, researchers say.
Some of the most【C1】______sights in nature happen when animals form【C2】______ groups and move together as if【C3】______. Earlier work has shown that fish in large groups make better decisions than【C4】______or small groups.
Many theories have been【C5】______ about how animals might communicate in order to【C6】______this. But now it appears really simple. The researchers【C7】______groups of two, four or eight mosquito fish in a square arena for five minutes【C8】______studied the movements of individuals in each group. The【C9】______of the swimming fish were fed into software which acts like many pairs of eyes to keep【C10】______ on the direction and speed of each fish in the school and【C11】______it responds to other fish around it.
As schools of fish rarely suffer from crashes or【C12】______, the rules they use could also【C13】______be applied to robotic systems to solve traffic problems. If a system could be【C14】______ where each car knew where each car was and they could respond to each other and communicate with each other, traffic problems【C15】______ be avoid.
The researchers used a technique called artificial neural networks to look for【C16】______ in the data. And it turns out the【C17】______ well-organized swimming that fish in shoals【C18】______is actually caused by each fish using very simple rules to respond to its neighbors. These rules include " accelerate towards a neighbor that is far away from you" and " decelerate when a neighbor is【C19】______ in front of you". It is also found that a fish only responds to a single nearest neighbor at any one time. Those【C20】______ to be the rules people use when they are driving. [br] 【C3】

选项 A、arranged
B、enchanted
C、assembled
D、startled

答案 A

解析形容词辨析题。句意同上。由上下文可知，研究者们对动物整齐排列使用了什么样的规则很感兴趣，希望能应用于引导、安排车辆行驶。观察四个选项，arranged“安排好的”可较好地描述动物队列的秩序性，也与下文的研究与应用相符合，故为答案。排列成队必定要先集合，故assembled用于as if“似乎”之后不合适，排除；而enchanted“被迷住的”和startled“受惊吓的”在原文中均没有依据，排除。

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