题目内容：

The secret to happiness is keeping busy , research has found . Keeping the mind occupied with tasks –------ no matter how meaningless—keeps off (避开) negative emotions (情绪)，the study found .

However , the bad news is that humans are seemingly born to be lazy in order to save energy , according to Professor Christopher Hsee , a behavioral（行为的）scientist at Chicago University .

In a study , 98 students were asked to complete two surveys（调查）. After they had completed the first ,they were made to wait 15 minutes to receive the next one . They were given a choice of either handing in the first survey nearby or at a more distant location they had to walk to . Whichever option they chose , they received a chocolate bar . It turned out that approximately(大约) two – thirds (68 students ) chose the lazy option（选项）. Those who had taken the walk reported feeling happier than those who had stayed put（呆在原处）.

Prof . Hsee concluded that keeping busy helped keep people happy . He said the findings , reported in the journal Psychological Science , had policy implications (政策意义).

“Governments may increase the happiness of idle (闲散的) citizens by having them build bridges that are actually useless , ” he proposed (建议).

At the individual（个人的）level , he advised , “Get up and do something . Anything . Even if there really is no point to what you are doing , you will feel better for it” . He added , “Incidentally , thinking deeply or engaging in self-reflection（反省）counts as keeping busy , too .”

“You do not need to be running around . You just need to be engaged , either physically or mentally .”

1.Why can keeping busy make people happy ?

A. It can help people get rid of laziness .    B. It can make people sleep better .

C. It can help get rid of negative emotions(负面情绪)    D. It can give people a sense of achievement

2.Which of the following statements is TRUE according to the passage ?

A. The finding may contribute to politics

B. The officials have taken Prof . Hsee’s advice

C. In the study half students handed in the first survey nearby ,

D. Governments can increase citizens’ happiness by building bridges

3.What can we infer（推断）from the passage ?

A. Only by keeping working all the time can you gain happiness

B. Prof .Hsee’s finding was published in Psychological Science.

C. Keeping busy can add to the possibility of being happy

D. Everybody is born to be lazy

4.What is the author’s purpose in writing this passage ?

A. To explain what happiness is .    B. To advise people not to sit around(坐着啥也不做) .

C. To advise people to do what they like to .    D. To show people how to take life correctly.