题目

阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。According to a recent study, dolphins have displayed certain characteristics of human conversation in their communication. Two dolphins, Yana and Yasha, 【1】 (study) as they communicated with each other. Researchers found that they would stop talking in order to listen to 【2】 the other had to “say”, just like a conversation between two humans. Dolphins have been known to be one of the most intelligent 【3】 (animal). We have studied dolphins for decades, but this new evidence on their communication patterns is one of the most exciting. 答案：【答案】【1】were studied【2】what【3】animals【解析】这是一篇说明文， 主要讲了海豚间的交流跟人的交流有一些类似。【1】考查被动语态。句意：研究者们在两只海豚Yana和Yasha互相交流的时候，对他们进行了研究。结合上文，根据最近的一项研究，海豚的交流里有一些人类的交流特色。所以研究人员研究了两只海豚，即两只海豚被研究。研究已经完成，是过去的事，所以用一般过去时的被动语态，因为主语是两只海豚，所以还要用复数。故填were studied。【2】考查宾语从句。句意：研究者发现，他们会停止说话，为了倾听另一方说什么，就像两个人之间的交流一样。根据句子结构，这里是listen to的宾语从句，宾语从句中缺少动词say的宾语，故填what。【3】考查名词。句意：海豚一直是众所周知的最聪明的动物之一。one of…意为…之一，后面的形容词或副词用最高级，名词用复数形式，故填animals。

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