阅读理解。

     It can be dangerous to travel by sea. Ships sometimes sink far away from land. When this happens,

the sailors (水手) have to get into small boats. If another ship does not come and help them and they do

not have enough food or water, they may die.

      Most people believe we must not drink sea water. They believe that if we do, we shall be very ill

because of all the salt in the water. A doctor called Alain Bombard did not believe this. He thought that

people could stay alive by drinking sea water and eating small fish, animals, and plants from the sea. On

19 October 1953, he set out in a small boat to cross the Atlantic Ocean. He did not take any food or water

with him. 

     Every day Dr. Bombard drank just a little sea water. He also caught fish and they had water in them.

He took small plants from the sea, which gave him more food.

     Dr. Bombard became hot, tired and quite ill, but after 65 days at sea he was still alive. He traveled

2750 miles from one side of the Atlantic Ocean to the other, and on 24 December 1953, he reached

Barbados.

     He lost 20 kilos, but he showed that people could live on sea water and animals and plants in the sea.

1. What is this story mainly about?

A. Drinking sea water.

B. A dying sailor.

C. A clever doctor.

D. A happy journey.

2. Alain Bombard was _______.

A. an old sailor

B. a fisherman

C. a teacher

D. a doctor

3. He went across_________ in 1953.

A. many countries

B. a large ocean

C. a ship

D. a small town

4. He wanted to show that _________.

A. sea water was dangerous

B. fish and plants were good for people

C. people could drink seawater and not die

D. sailors often died when they were traveling on the sea