Question 31. From the story we can tell that...............................

The only animals that really can talk to one another are people. Some birds can say words which they hear people say. But they cannot understand each other when they hear these words.

Although they cannot talk, animals do make sounds. Cats make growling sounds and purring sounds and meowing sounds. All of these sounds are made in the throat.

Not all the sounds that animals make come from their throats. When birds sing, the sound comes from below their throats. Bees hum and flics buzz by beating the air with their wings. A grasshopper makes sounds by rubbing one wing against the other.

By making sounds, animals tell when they are angry or happy or hungry. Only man can make real words and understand all that is said to him.

Notes:

1. to growl : gầm gừ
2. to purr : (tiếng mèo kêu) gừ gừ, rù rù
3. to meow : kêu meo meo
4. to hum : kêu vù vù
5. to buzz : (ong) kêu vo ve
6. grasshopper : con châu chấu
7. to rub : chà, xát, cọ xát, cà vào nhau.