阅读理解。
People have sailed (航行) around the world in quite small boats.  It is not an easy thing to do.
Sometimes the weather gets bad.  That can be the end of a boat, and the end of everyone in it.
Accidents can happen easily and quickly.
One family once had an accident with some big fish.  The fish swam under their boat and bit (咬) holes
in it.   The sea water came in,  of course,  and the boat soon sank (沉没).  Hr,  these people had another
small boat-a lifeboat,  and they all got into that.  They lived and hoped for many days.  They ate and
slept, and they always hoped.  At last a ship found them.
How do people live in a very small lifeboat? Perhaps for weeks or months? They must be strong in
every way. They must have hope-they want to live. But you cannot cat and drink hope.
You cannot drink sea water. Drink a lot of sea water and you will quickly die. Sailors (海员)  can
drink rain water. They must catch rain water in their boat. They must also catch fish and birds for food.
Lifeboats do not carry a cooker (炊具), and so the sailors cannot cook their food.  Raw fish (生鱼) and
bird meat is not very nice. But there is no other choice in a lifeboatl The sailors must eat
raw food, or they will die.
What do people think about in a life boat'l They think about land, a warm bed,dry clothes, fresh water and food, food, food.
1. When sailors' boat sinks, their lifeboat gives them _________.
A. food
B. beds
C. rainwater
D. hope
2. One famil'y once had an accident at sea,  because _________.
A. their boat was caught in bad weather
B. the boat knocked against (对着) a rock and sea water came in
C. some fish bit through the bottom of their boat
D. one of them knew how to sail in the sea
3. Sailors can catch _________ for food and drink at sea in a lifeboat.
A. rain water
B. fish and birds
C. both sea water and rain water
D. both A and B
4. Lifeboats do not often carry a cooker, which is _________.
A. something used for cooking
B. food for cooking
C. a large box
D. a person who cooks food
5. Which of the following is NOT true?
A. Sailing around the world in quite small boats is not easy.
B. All the food sailors have in a lifeboat is cooked fish and bird meat.
C. Anyone who drinks a lot of sea water will die.
D. No one can live for weeks in a lifeboat unless (除非) hc is strong and wants to live.

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