a very important thing to know. It's wise to be afraid. The young understand that the water can sometimes be very dangerous.

When you swim, you should follow certain rules:

★ Never swim alone! No matter how good you are in the water, don't risk drowning by swimming alone. If you swim by yourself, you may get into trouble.

★ Don't go beyond your abilities. Most swimmers know it clearly not to swim too far from the bank or the beach.

★ Don't show off your skills by doing dangerous tricks.

★ Don't smoke. Swimming depends on a healthy body.

★ Work at any activity that builds muscles (肌肉).

1.Little children can learn to swim as soon as _________ .

A.they can talk B.they start walking

C.they have no fear of the water D.they are five or six years old

2. The writer believes it's very __________for a child to know the fear

of water.

A. important B. useful C. dangerous D. bad

3.According to the passage, you should not swim alone because .

A.the water is too cold B.your parents would not be happy

C.something in the water might attack D.you might drown

( B ) 　

Henry Ford was the first person to build cars which were cheap，strong and fast．He was able to se11 millions of models because he could produce them in large numbers at a time；that is，he made a great many cars of exactly the same kind．Ford's father hoped that his son would become a farmer，but the young man did not like the idea