Swimming is very popular, people like swimming in summer because water makes people feel cool. If you like swimming and swim in a wrong place, it may not be safe. These years, a lot of people died when they were enjoying themselves in the water, and most of them were students. Some people are not careful in swimming. They often think they swim so well that nothing will happen to them in the water. Summer is here again. If you go swimming in summer, don’t forget that better swimmers have died in water. They died because they were not careful, not because they could not swim. So don't get into the water when you are alone. Don't get into the water if there is a "No Swimming" sign. If you remember these, swimming will be safe.
People like to swim in summer because______.

A．they feel cool in the water

B．they feel free in the water

C．swimming makes them strong

D．swimming makes them popular

Swimming may not be safe if_____.

A．it is popular enough

B．you like swimming very much

C．it makes people excited

D．you swim in dangerous places

These years many ______died in the water when they were swimming happily.

A．old people	B．young people
C．women	D．people

Some swimmers die in water because______.

A．they swim so well	B．they are not strong enough
C．they are not careful	D．they can't swim well

The writer wants to tell us that_______.

A．swimming is a good sport

B．we should not go swimming in summer

C．we must be careful in swimming

D．we should not go swimming in the river