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Can dolphins talk? Maybe they can't talk with words, but they talk with sounds. They show their feelings with __1__.
Dolphins travel in groups. We call a group of fish a
“__2__”. They don't study, but they travel together. Dolphins are mammals（哺乳動物）, not fish, but they swim together in a school. Dolphins talk to the other dolphins in the school. They give information. They tell when they are happy or __3__ or afraid. They say“Welcome”when a dolphin comes back to the school. They make __4__ sounds under water. People can't hear these sounds because they are very, very high. Scientists make tapes of the sounds and __5__ them.Sometimes people catch a dolphin for large aquarium. (An aquarium is a zoo for fish.)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 __6__. There are many stories about dolphins. They help people. Sometimes they save people's
__7__. If you fall into the water and can't swim, they may come up to help you. They swim fast and jump very __8__. They can play with a ball. They can stand up and walk on water! They are friendly __9__ people. Dolphins'meat is __10__, but people don't like to kill them. They say that dolphins bring good luck. Many people believe this.
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(1) A ．signs |
B ．sounds |
C ．words |
|
(2) A ．group |
B ．team |
C ．school |
|
(3) A ．glad |
B ．sad |
C ．afraid |
|
(4) A ．more |
B ．many |
C ．much |
|
(5) A ．learn |
B ．imitate（模仿） |
C ．study |
|
(6) A ．alone |
B ．lonely |
C ．by itself |
|
(7) A ．lives |
B ．living |
C ．life |
|
(8) A ．high |
B ．highly |
C ．easy |
|
(9) A ．with |
B ．for |
C ．to |
|
(10) A ．well |
B ．good |
C ．bad |
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