阅读理解。根据短文内容，判断正（T）误（F）。

 　　Swimming is very popular in summer. People like swimming in summer

because water makes them feel cool.If you swim in a wrong place,it may not be

safe.These years,more than ten people died in this city while they were enjoying

in the water and most of them were students. But some people are still not

careful in swimming.They often think they swim so well that nothing can happen

to them in water. Summer is here again. If you go swimming, don't forget that

better swimmers have died in water. They died because they were not careful,no

t because they were not good at swimming. So don't get into water when you are

alone. If there is a"No Swimming"  sign,don't get into water,either.If you

remember all this,swimming will be safer.

( )1. Swimming is a very safe sport.

( )2. We shouldn't swim in some wrong places.

( )3. Only students die in water.

( )4. If you are good at swimming,you will not die in water.

( )5. If we often practice swimming,we will be safer.