题目内容：

The human brain remembers negative experiences more easily than positive ones. Our brains have developed in this way because threats, like dangerous animals, have a more immediate effect on people’s survival compared to positive things like food or shelter. As a result, you clearly know what makes you unhappy, but do you know what makes you happy?

Research suggests that our level of happiness is partly shaped by the choices we make. If you’ve been chasing wealth, fame, power and some material things, you may be looking for happiness in the wrong places. Psychologists suggest that the following habits can make people happier.

People who own close relationships tend to be happier than those who do not. The number of our friends is not important. What matters is the quality of our relationships. Relationships that bring happiness usually consist of the sharing of feelings, acceptance, mutual (双方的) respect and trust.

People who exercise regularly can improve both their physical and mental well-being. Some research has shown that exercise can be as effective as some medicine in treating depression.

If we are so interested in an activity, we may lose track of time, and we can be in a state of flow. The activity could be playing the piano, surfing the Internet or playing a game… People who experience flow in their work or life tend to be happier.

People are more likely to be happy if they know what their strengths are and can use them regularly. People are especially happy when they can set goals and use their strengths to achieve them.

People, who think positively by being grateful, mindful and optimistic, are more likely to be happy. Being grateful means being thankful. Being mindful means considering, focusing on, and enjoying the experiences of the present moment. Being optimistic means being hopeful about the future.

1.Human brains remember negative things more easily because negative things____ .

A. tend to affect human survival immediately

B. are much more important than other things

C. can make people live much happier

D. are easy to remember

2.According to this passage, people may find happiness in___ .

A. being famous    B. chasing power

C. setting life goals    D. earning money

3.In the last paragraph, the author tries to tell us to ____.

A. think more about our future    B. be positive in our life and work

C. focus on everything in our life    D. only enjoy the present moment

4.What does the passage mainly want to tell us?

A. Why people remember positive things easily.

B. Why people remember negative things easily.

C. What makes people happy.

D. What makes people sad.