30. A: people B: population C: popularity D: popular
Question 5: Read the passage and then answer the questions
For many years people believed that the cleverest animals after man were chimpanzees. Now, however, there is
proof that dolphins may be even cleverer than these big apes. Although a dolphin lives in the sea it is not a fish. It is a
mammal. It is in many ways, therefore, like a human being.
Dolphins have a simple language. They are able to talk to one another. It may be possible for man to learn how to
talk to dolphins. But this will not be easy because dolphins can not hear the kind of sounds man can make. If man
wants to talk to dolphins, therefore, he will have to make a third language which both he and the dolphins can
understand.
Dolphins are also very friendly towards man. They often follow ships. There are many stories of dolphins
guiding ships through difficult and dangerous waters.
Bạn đang xem 30. - BAITAPU4 5 6CODAPAN