can dolphins talk maybe they can't talk with words ,but they

can dolphins talk maybe they can't talk with words ,but they can talk with sounds .they show their feelings with souds .
dolphins travel in a group .we call a group of fish a "school ".dolphins are not fish ,but they can swim together in a school .dolphins also talk to the other dolphins in the school .they give information .they talk when they are happy and they talk when they talk when they are happy and they talk when they are sad ,too .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 .scientists make tapes of the sounds and study them .
sometimes people catch a dolphin for a large aquarium .people can watch the dolphins in a show .dolphins don't like to be away from their school in an aquarium .they are sad and lonely .
there are many stories about dolphins .they help people .sometimes they save men's life .if is said that dolphins can bring good luck .many people believe this .
1.how do dolphins show their feelings
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2.are dolphins fish
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3.what do dolphins say when a dolphin comes back to the school
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4.if dolphins are away from their school ,what do they feel
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5.do you think dolphins can bring luck to people
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（答案和题眼）

1 They can talk with sounds .they show their feelings with souds .题眼 第一段第二句
2 NO 题眼 第二段第三句
3 They say "welcome " when a dolphin comes back to the school .题眼 第二段倒数第三句
4 They are sad and lonely .题眼 第三段最后一句
5 Yes I do 题眼 最后一段最后一句