1 The astronomer was not interested in the way dolphins communicate with each other.
A Right
B Wrong
C Not mentioned
2 The dolphin leapt up into the air because Sagan was too near the water.
A Right
B Wrong
C Not mentioned
3 Parts of the dolphin's brain are particularly well developed to handle different kinds of sound.
A Right
B Wrong
C Not mentioned
4 Dolphins are the most useful animals to humans.
A Right
B Wrong
C Not mentioned
5 Dolphins travel faster in water than any other animals.
A Right
B Wrong
C Not mentioned
6 Some scientists believe that dolphins have a language of their own.
A Right
B Wrong
C Not mentioned
7 Sounds can be called a language only when they have a structure and a grammar.
A Right
B Wrong
C Not mentioned
【参考答案】1. B 2. B 3. A 4. C 5. C 6. A 7. A
