题目内容：

    Many students like watching TV very much. But from Monday to Friday, they must go to school. So on Saturday and Sunday they always stay at home to watch TV. Some children even watch TV from morning to night. They don't know it's very bad for their eyes.

Now, computers are also very popular. They make our lives more interesting. But using computers too much also does harm to children's eyes. So now in middle schools，even primary schools，you can see many students wear glasses.

Usually children like to eat meat very much，but they don't like vegetables or fruit. They don't know some vegetables and fruit are good for their eyes.

1.What do many students do on weekdays?

A.They stay at home. B.They must go to school.

C.They watch TV at home. D.They watch movies in the cinema.

2.According to the passage，what is bad for children's eyes?

A.Watching TV too much. B.Studying hard on weekdays.

C.Eating lots of vegetables or fruit. D.Playing computer games for a short time.

3.What does the underlined word “harm” mean?

A.提高 B.改变 C.伤害 D.帮助

4.From the passage，we can infer(推断)that ______.

A.the writer thinks students can learn better with a computer

B.parents think it is good for children to watch TV a lot

C.every child should learn how to use a computer in class

D.the writer doesn't like children to use a computer too much