问题补充：
Can dolphins talk ? Maybe they can’t talk with words ,but they can talk with sounds . They show their feelings with sounds .
Dolphins travel in group . We call a group of them a “school “. They don’t study , but they travel together.
Dolphins talk to other dolphins in the school .They give information . They tell other dolphins when they are happy or sad or afraid . They say “welcome “when a dolphin comes back to the school . They talk when they play .
They make a few sounds above water . They make many more sounds under water . People can hear these sounds because they are very high .
Sometimes people catch dolphins for large aquariums . People can watch the dolphins in a show . Dolphins don’t like to be in the aquarium , being away from their school . They are sad and lonely if they do so .
There are many stories about dolphins . They help people . Sometimes they save someone’s life . Many people believe that dolphins can bring good luck .
【小题1】Dolphins show their feelings with .A．picturesB．wordsC．wavesD．sounds【小题2】Dolphins in the school according to the passage.A． give informationB．don’t tell other dolphins when they are afraid C． talk when they sleepD．say “ sorry” when a dolphin comes back【小题3】People can’t hear the dolphin’s sounds because >A．they are above the waterB．they are under the waterC．they are very highD．they are very low【小题4】Many people believe that dolphins can bring.A．good luckB．healthC．wealthD．danger【小题5】Which of the following is TRUE ?A． Dolphins study in the school.B．Dolphins travel in a group.C．Dolphins like to be away from their school.D．Dolphins sometimes kill people.D
答案：
(答案→)D
解析：这篇短文重点介绍了海豚的生活习性及他们不同于其它动物的特点。它们一般集体活动，是哺乳动物，他们通过声音彼此交谈，也具有人类的情感，并且被人们认为是会带来幸运的动物。
【小题1】细节理解题。根据They show their feelings with sounds .描述，可知海豚用声音表达他的感情。故选D.
【小题2】细节理解题。根据Dolphins talk to other dolphins in the school .They give information .描述，可知在鱼群中，海豚能发出信息。故选A。
【小题3】细节理解题。根据People can hear these sounds because they are very high .描述，可知人们能听到海豚的声音，是因为他们发出的声音很大。故选C。
【小题4】细节了理解题。根据最后一段Many people believe that dolphins can bring good luck .描述，可知许多人认为海豚能带来好运。故选A。
【小题5】细节理解题。根据Dolphins travel in group . 描述，可知海豚成群活动。故选项B描述正确。
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