Question

　　Can dolphins talk?Maybe they can't talk with words, but they talk with sounds．They show their feelings with sounds．

　　Dolphins travel in groups．We call a group of fish a“school”．They don't study but they travel together．Dolphins are mammals(哺乳动物)，not fish, but they swim together in schools．Dolphins talk to other dolphins in the same school．They give information to each other．They can tell when they are happy, 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, but they make many more sounds under water．People can't hear these sounds because the sounds are very high．Scientists make tapes of the sounds and study them．

　　Sometimes people catch some dolphins for a large aquarium．People watch the dolphins in a show．Dolphins don't like to be away from their schools．In the aquarium, they are sad and lonely．There are many stories about dolphins．They can help people．Sometimes they save people's lives．Dolphin's meat is good but people don't want to kill dolphins．They say that dolphins bring good luck．Many people believe this．

根据文章内容，将下列句子补充完整．

1．Maybe dolphins can't talk with ________, but they talk with sounds．And they with sounds．

2．Dolphins travel in groups．A group is called a“________”．

3．Dolphins make ________ sounds above water than what they make under water．

4．When dolphins are in the aquarium, they feel ________．

5．Many people believe that dolphins bring ________．

Answer 1

答案：words;show their feelings;School;fewer;sad and lonely;good luck