3．Over the last 70years，researchers have been studying happy and unhappy people and finally found out ten factors that make a difference．Our feelings of well-being at any moment are determined to a certain degree by genes．However，of all the factors，wealth and age are the top two．
Money can buy a degree of happiness．But once you can afford to feed，clothe and house yourself，each extra dollar makes less and less difference．
Researchers find that，on average，wealthier people are happier．But the link between money and happiness is complex．In the past half-century，average income has sharply increased in developed countries，yet happiness levels have remained almost the same．Once your basic needs are met，money only seems to increase happiness if you have more than your friends，neighbors and colleagues．
"Dollars buy status，and status makes people feel better，"conclude some experts，which helps explain why people who can seek status in other ways-scientists or actors，for example-may happily accept relatively poorly-paid jobs．
In a research，Professor Alex Michalos found that the people whose desires-not just for money，but for friends，family，job，health-rose furthest beyond what they already had，tended to be less happy than those who felt a smaller gap．Indeed，the size of the gap predicted happiness about five times better than income alone．"The gap measures just blow away the only measures of income．"says Michalos．
Another factor that has to do with happiness is age．Old age may not be so bad"Given all the problems of aging，how could the elderly be more satisfied？"asks Professor Laura Carstensen．
In one survey，Carstensen interviewed 184people between the ages of 18and 94，and asked them to fill out an emotions questionnaire．She found that old people reported positive emotions just as often as young people but negative emotions much less often．
Why are old people happier？Some scientists suggest older people may expect life to be harder and learn to live with it，or they're more realistic about their goals，only setting ones that they know they can achieve．But Carstensen thinks that with time running out，older people have learned to focus on things that make them happy and let go of those that don't．
"People realize not only what they have，but also that what they have cannot last forever，"she says．"A goodbye kiss to a husband or wife at the age of 85，for example，may bring far more complex emotional responses than a similar kiss to a boy or girl friend at the age of 20．"
72．According to the passage，the feeling of happinessA．
A．is determined partly by genes
B．increases gradually with age
C．has little to do with wealt
D．is measured by desires
73．Some actors would like to accept poorly-paid jobs because the jobsC．
A．make them feel much better
B．provide chances to make friends
C．improve their social position
D．satisfy their professional interests
74．Aged people are more likely to feel happy because they are moreC．
A．optimistic
B．successful
C．practical
D．emotional
75．Professor Alex Michalos found that people feel less happy ifA．
A．the gap between reality and desire is bigger
B．they have a stronger desire for friendship
C．their income is below their expectation
D．the hope for good health is greater．
分析 文章讲述了幸福感与基因有关，但是更重要的是财富和年龄大小是决定人们对幸福不同看法的最重要的两个因素．
解答 72-75 ACCA
72．答案A．细节题．根据第一段"Our feelings of well-being at any moment are determined to a certain degree by genes．"可以推断出幸福感在一定程度上由基因决定．故选A．
73．答案C．推断题．根据第四段"‘Dollars buy status，and status makes people feel better'…which helps explain why people who can seek status in other way-scientists or actors，for example-may happily accept relatively poorly-paid jobs．"可以推断出，演员接受收入低的工作是为了提升社会地位，使自己感觉更好．故选C．
74．答案C．归纳题．根据倒数第二段"Some scientists suggest older people may expect life to be harder and learn to live with it，or they're more realistic about their goals"可以推断出老年人对待目标更加实际，所以可以感觉更幸福．故选C．
75．答案A．推断题．根据第五段"people whose desires…rose furthest beyond what they already had，tended to be less happy than those who felt a smaller gap．"可以推断出，如果现实和欲望差距比较大，比起相差不大的人幸福感差，也就是说感觉相对不幸福．故选A．
点评 阅读理解解题技巧：1．迅速将整篇文章分解，理出文章结构；2．迅速抓住文章叙述的主题；3．迅速找出各部分的中心意思，并找出表达中心意思的句子．
