Can dolphins talk？Maybe they can't talk with words，but they talk with sounds.They give information and show their feelings with sounds.
   We call a group of fish "a school".They don't study together，but they travel together in a group.Dolphins are mammals，not fish，but they swim together like fish in a school.
   Dolphins talk to the other dolphins in the school.They tell each other when they are happy or sad or afraid.They say "welcome" when a dolphin comes back.They talk when they play.They make a few sounds above water.They many more sounds under water.People cannot hear these sounds because they are very high.Scientists make tapes of the sounds and study them.
   Dolphins are smart animals.Sometimes people catch（ 抓 捕）dolphins for large sea parks.
   People can watch wonderful dolphin shows in a sea park.But dolphins don't like to be away from their school.They miss their group members.They are sad and lonely when they are in the sea park.
   Dolphins are friendly to humans.There are many stories about dolphins.They help people in trouble and sometimes they save a person in danger.People love dolphins and don't want to hurt or kill them.They say that dolphins bring good luck.Many people believe this.

（1）Which of the followings about the dolphins' sounds is TRUE according to the passage？

B

B

A．Dolphins' sounds aren't very high.
B．Dolphins give information with sounds.
C．Dolphins make less sounds under water.
D．Dolphins never show feelings with sounds.
（2）The underlined expression "a school" （in Para.2）refer to

A

A

.
A．a(chǎn) group of fish swimming together
B．a(chǎn) dolphin show in a sea park
C．A special kind of animals in the sea
（3）How do the dolphins in the sea park feel？

C

C

A．Surprised.
B．Angry.
C．Upset（沮喪的）.
D．Happy.
（4）The best title for the passage is

A

A

.
A．Fun Facts about Dolphins
B．Special Schools for Dolphins
C．Nice Stories about Dolphins
D．Beautiful Sounds by Dolphins