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Scientific research has revealed that throughout the animal world, communication is just as important as it is to human beings.
Scientific research has revealed that throughout the animal world, communication is just as important as it is to human beings.
admin
2010-07-24
57
问题
Scientific research has revealed that throughout the animal world, communication is just as important as it is to human beings. Countless animals lack the【C1】______for human speech, yet they employ entirely different methods in order to communicate【C2】______each other. Some of the most dramatic examples of this are provided by birds. There are roughly 10 000【C3】______of birds in the world, each of which has its own miraculous features.【C4】______you may live, you can see a great number of these feathered creatures and can【C5】______different and extraordinary properties. In addition to their flawless flight mechanisms, expertise【C6】______the routes and timing of migrations, and ability to build nests, their methods to communicate is【C7】______wonder. At critical times in birds’ lives, their【C8】______of hearing becomes particularly important. Experiments have shown that in order for birds to learn the【C9】______song of their own species, they need an auditory feedback system.【C10】______this system, young birds learn to【C11】______the sounds they produce with the song they have memorized. If they were【C12】______, it wouldn’t normally be【C13】______for them to recognize songs. Birds’ extremely sensitive hearing functions perfectly. Clearly, if this sense failed to【C14】______properly, the bird would not be able to hear any sounds【C15】______Moreover, birds also produce【C16】______communications by their facial expressions, beak movements, feather ruffling, and【C17】______their wings. Although each species has its own body language, many different species【C18】______movements in the same way. Via facial expression, birds can【C19】______a variety of messages to those around them--negative feelings such as dislike and resentment, as well as【C20】______ones like pleasure, enthusiasm and curiosity.
【C11】
选项
A、listen
B、equal
C、compare
D、match
答案
C
解析
动词辨义题。根据上下文意思知道幼鸟通过比较其他鸟的歌声和记忆中的声音来辨别同类。这句承接前半句的意思“多亏了这个系统,幼鸟才能够学会对它仃]所发出的声音和它们记忆中的声音进行比较”,compare“比较,相比”的意思,所以应该选C。
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0
大学英语四级
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