市净率与市盈率相比，前者通常用于考察股票的内在价值，多为长期投资者所重视；后者通常用

Not only adults but also teenagers have problems in their life. Here is a survey showing the main problems of      .
They feel stressed because they have       homework to do both at school and at home. They have lots of exams      . And parents usually send them       different classes at weekends. As a result, so many of them almost become bookworms(书虫). On holidays, they could hardly have       time to do what they are interested in. Now more and more teenagers     short-sighted. They often read in bed or keep       for a long time without having a rest. Some of them are crazy about playing computer games. Some       too much watching TV.       serious problem among teenagers is that many of them are becoming fat. They eat too much junk food, but they take little exercise.
I think teenagers should think of ways on how to       the problem. They should make a plan for study and hobbies and find time to relax as much as possible.

小题1:	A．adult B．adults C．teenager D．teenagers

小题2:	A．too many B．too much C．much too D．many too

小题3:	A．join B．to be taken C．to take D．to join

小题4:	A．to B．for C．of D．in

小题5:	A．our own B．their own C．his own D．they own

小题6:	A．are getting B．are getting C．got D．are become

小题7:	A．red B．read C．to read D．reading

小题8:	A．pay B．cost C．spend D．take

小题9:	A．Another B．Other C．Others D．Some

小题10:

A．doing with B．do with C．dealing with D．deal with