ADVANCED STUDENTS NEED TO BE AWARE OF THE IMPORTANCE OF COLLOCATION.A....

Câu 43:

Advanced

students need to be aware of the importance of collocation.

A. Of high level

B. Of low level

C. Of great importance

D. Reputation

Read the following passage and mark the letter A, B, C, or D on your answer sheet to

indicate the correct answer to each of the questions.

The sea has always interested people. From it they can get food, minerals, and treasures. For

thousands of years, they sailed on the sea. But they could not go far beneath its surface.

People want to explore deep into the sea. However, they are not fishes. Because people must

breathe air, they cannot stay under the water’s surface for any length of time. To explore

deep water, men and women face even more dangers and problems. A diver who wants to

stay under water for more than a few minutes must breathe air or a special mixture of gases.

Divers can wear diving suits and have air pumped to them from above. They can carry tanks

of air on their back and breathe through a hose and a mouthpiece. Water weighs 800 times as

much as air. Tons of water push against a diver deep in the sea. The diver’s body is under

great pressure. When divers are under great pressure, their blood takes in some of the gases

they breathe. As they rise too quickly, the gases in their blood form bubbles. Divers then

suffer from the bends. The bends can cause divers to double up in pain. Bends can even kill

divers.