题目内容：

In a book called Magnificent Obsession，by Lloyd C．Douglas，a description is given of people helping others but doing it secretly.When difficult problems worried an individual，friends nearby would meet to discuss possible solution without the individual knowing their actions.When a solution was agreed upon，one or two of the friends would carry out the plan and solve the problems secretly，to the great delight of the worried individual.The helpers would stand by privately，contented with their success.No reward was given to the problem solvers，not even a sincere “thank you”，because they were never known.

This concept is popular today but in a different way.The phrase “pay_it_forward” is now used when one person helps another.However，the person being helped may not be able to repay the person or group that helped them.So rather than return the favor to their helpers，they are supposed to help someone else in the future，which means they pay it forward.It is the sense of responsibility that makes us want to give back in equal measure to the one who has helped us.But，in this case，the responsibility turns to helping someone in the future.

Suppose your elderly grandmother pays part of your schooling.She may tell you there is no need to repay her because it is a gift from someone who loves you very much.Nothing would please her more than to have you use her money to get a good education.

You may never be able to repay her for such a gift.However，she not only gave you some money，but she provided you with an example that you should also help other people who need it.

People with serious needs are everywhere.Many are children who need better clothes，more books and even better schools.Some are elderly people who can’t afford their medicine or a doctor’s care.Consider how you can “pay it forward”rather than pay money back to your grandmother.

1.The helpers in the book Magnificent Obsession were not rewarded because________.

A．they hadn’t solved the problems thoroughly

B．they had solved the problems secretly

C．they were friends of the worried individual

D．they expected to be paid back in the future

2.The underlined words “pay it forward” in Paragraph 2 mean________.

A．to repay someone who has helped you

B．to pay someone else who needs help

C．to help someone who has helped you

D．to help someone else who needs help

3.What does the writer suggest with the example of “your elderly grandmother”？

A．We should learn to respect our grandparents.

B．We should work hard to get a good education.

C．We should also lend a hand to other people in need of help.

D．We should never forget to repay people for their help.

4.By writing the passage，the author wishes people in the world to be________.

A．unselfish  B．mysterious

C．honest    D．Unforgettable