【正确答案】 C

【答案解析】[听力原文] Moderator: Good evening, ladies and gentleman. Today we are honored to have Professor Barnett who is an expert in dolphin study. And he will introduce to us the unique characteristics and living conditions of dolphins. Professor Barnett, please. Professor Barnett: Thank you for your introduction, Lisa. Well, one of the most intelligent animals on the planet is the dolphin. These unique animals have been regarded highly by humans for many centuries. In ancient Greece, if sailors saw dolphins swim by their ships when they were starting out on a voyage, they believed they would have good luck. One unique characteristic that makes them different from other sea animals is the way that they communicate. Dolphins use sound, touch and taste in order to learn about their world; however, unlike dogs, dolphins cannot smell. They use a whistle or sound waves to see and feel their way around their environment. This makes them different from many other sea animals and also helps them communicate with people. Another unique thing about dolphins is that the bones in their fins are similar to those in human arms and hands. However, the connective tissue that surrounds the bones forms a flipper instead of a hand with individual fingers. Even though dolphins live in the oceans, they do not drink the salt water around them. Their bodies absorb water from the wide variety of creatures they eat. Loving a dolphin is an easy thing to do but, unlike a dog or a cat, the dolphin cannot come home with you from the ocean. That is why many people like collecting dolphin souvenirs. One can find many such things in almost every shop around the world. Even the ancient people painted the images of dolphins on their vases. However, dolphins are sometimes hunted in places like Japan, in an activity known as dolphin drive hunting. Besides drive hunting, they also face threats from habitat loss and marine pollution. Dolphins have been depicted in various cultures worldwide. Dolphins occasionally feature in literature and film. Dolphins are sometimes kept in captivity and trained to perform tricks, but breeding success has been poor and the animals often die within a few months of capture. The most common dolphins kept are the killer whales and bottlenose dolphins. Q: What makes dolphins different from other sea animals? 解题思路：四项均为名词性短语，各项的关键词汇分别为extraordinary intelligence，special bones in their fins, way they communicate和way they get water。根据这些关键词汇可推测题目可能考查的是某一特征或行为方式。听音时应重点关注相关信息。 本题问的是海豚与其他海洋动物的不同之处。讲座中提到：“海豚有别于其他海洋动物的一个独一无二的特点是它们的交流方式……它们通过口哨声或声波来观察周围的环境和游动。这一点使它们有别于许多其他海洋动物。”故选C项。选项中的the way they communicate是原词复现。需要注意的是，讲座中另有一处也提到了海豚的独特之处，即“海豚的另一个独特之处在于它们的鳍骨与人类手臂及手掌的骨骼相似”，但题目问的是与其他海洋动物的不同之处，所以B项不正确。

【正确答案】 B

【答案解析】[听力原文] Q: Why do many people enjoy collecting dolphin souvenirs? 解题思路：四项均为以they开头的句子。四项的关键词汇分别为：love to keep them as pets, love them but cannot live with them, find many stores和believe...bring good luck。首先应辨明they和them的指代对象，听音时应重点关注与选项中的关键词汇有关的内容。 本题问的是人们喜欢收集海豚纪念品的原因。讲座中提到：“爱上海豚很容易，但是，海豚不同于狗或猫，你不能将它们从海洋中带回家。而这正是很多人喜欢收集海豚纪念品的原因。”故选B项。选项中they指代的是many people，而cannot live with them是对讲座中cannot come home with you from the ocean的同义替换。其他三项都不符合讲座内容，可排除。

【正确答案】 B

【答案解析】[听力原文] Q: What did ancient people do with dolphins? 解题思路：四项均为以they开头的一般过去时的句子。四项的关键词汇分别为：made them swim, painted their images, hunted them和trained them。本题考查的应该是与过去有关的内容，听录音时首先应辨明they, their和them的指代对象，然后将听音重点放在与各个选项的关键词汇有关的内容上。 关于古代的人们对海豚做了些什么，原文中提到：“甚至连古代的人们都在花瓶上绘上海豚的图案。”由此可见他们将海豚的图案绘制在某些物品上，故选B项。选项中的they指代ancient people, their和them的指代对象是海豚，而some items对应讲座中的their vases。A项干扰性较强，讲座前面部分提到：“在古希腊，水手们准备出海远行时如果看到海豚在船边畅游，他们相信自己将会交上好运。”并不是让海豚在自己的船边畅游，故排除A项。C项和D项都不符合题意，也可排除。

【正确答案】 D

【答案解析】[听力原文] Q: What's happening to the dolphins? 解题思路：四项均为以they开头的句子，描述的内容与其生存状态相关(are hunted, have been protected, have adapted to和are losing their habitat)。听音时应重点关注与各选项中的关键词汇有关的内容，并将其与题干问题相对应。 本题问的是海豚目前的遭遇，讲座中提到：“除了受到围猎捕杀，它们还面临着栖息地丧失和海洋污染的威胁。”由此可知答案为D项。其中，losing their habitat and clean sea是对讲座中habitat loss and marine pollution的同义替换。C项干扰性较强，但根据讲座中的“海豚有时会被人工驯养，接受训练表演特技，但海豚的繁殖成功率极低，被捕获的海豚通常在数月之内就会死去”可知此项有误，应排除。