题目内容：

The advice to"let go"of negative (消极的) feelings is repeated in yoga classes and self-help books. Now a new study suggests it really brings lasting health advantages. Those who had a hard time getting over daily troubles had more physical health problems ten years later.

If you are likely to think over daily troubles--running through every "what if" and "if only"-- it makes you feel that's a big deal. Maddux said, “You probably find you feel even worse after a night of thinking. If that cycle is repeated over time, it will wear you down."

The study results are based on 1,155 people who took in a national health study. Each day, the people described their feeling changes over the past 24 hours. During the 10-year mark, only 17 percent of the people have no physical health problems, and only 20 percent are satisfied with their physical strength. But those who always say they have negative feelings because of daily troubles are more likely to have the physical problems, the finding showed.

People can be likely to have bad feelings for a longer time for many reasons. For some people, worries or anger could drive it. Many others naturally have a more nervous feeling or are likely to think over and over again. But even if you are born to be negative, that can be changed.

"Yes, it's hard to 'let go'," Leger said. But people can develop that skill through practice, in which you train the mind to pay attention to the present, rather than worries about the past.

"Paying attention to the present, especially on things you are grateful for, has been shown to have several advantages, "Leger said.

1.What does the study result show us?'

A.1, 155 people say they have physical health problems.

B.During 24 hours, people never change their feelings

C.Only 17% of the people have no physical health problems.

D.Only 20% don’t feel quite good about their physical strength.

2.The underlined expression "that skill" in Paragraph 5 refers to _______.

A.asking "what if” B.letting it go

C.caring about the past D.thinking over and over

3.The purpose of the passage is to _______.

A.introduce different kinds of negative feelings.

B.help people know about the national health study

C.teach readers the ways to let the negative feelings go

D.ask people not to think over too much about the daily troubles

4.Which part of the magazine is the passage most probably from ?

A.Technology Part B.Advertisement Part.

C.Health Study Part D.Chemical Research Part.