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．pictures
B．words
C．waves
D．sounds小题2:Dolphins __________ in the school according to the passage.
A． give information
B．don’t tell other dolphins when they are afraid
C． talk when they sleep
D．say “ sorry” when a dolphin comes back小题3:People can’t hear the dolphin’s sounds because ______________>
A．they are above the water
B．they are under the water
C．they are very high
D．they are very low小题4:Many people believe that dolphins can bring_______________.
A．good luck
B．health
C．wealth
D．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.
小题1:D
小题2:A
小题3:C
小题4:A
小题5:B
题目分析：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。