题目内容：

People like swimming in summer， even （即使） in the other three seasons， because swimming can make them strong． But you shouldn't swim in a dangerous place． A lot of people died （死亡） when they were having fun in the water．

Some people are not careful． They often think they swim well， and they may be safe in water． Last summer， a few students went swimming in the river （河流）． Unluckily， three of them never came out of the river．

Summer is here again． If you go swimming， don't forget the three students． They died because they were careless．

Don't get close to the water when you are alone， or when you see "No Swimming" sign． If you remember these， swimming will be good for you．

1.People like swimming 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

2.The underlined word "unluckily" means in Chinese．  

A. 不幸地

B. 迅速地

C. 终于

D. 慢慢地

3.Last summer   students died in the water when they swam in the river．

A. a few

B. a lot of

C. three

D. four

4.The students died in water because   ．

A. they swim so well

B. they are not careful

C. they are not strong enough

D. they can't swim well

5.The writer wants to tell us that   ．

A. swimming is a good sport

B. we should not go swimming in summer

C. we should not go swimming in the river

D. we must be careful when we are swimming