Over the last 70 years．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． R esearchers 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(社会地位)，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 Mic halos 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(差距)．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． 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.” 小题1:According to the passage，the feeling of happiness _________. A．has little to do with wealth B．increases gradually with age C．is measured by desires D．is determined partly by genes 小题2:Some actors would like to accept poorly-paid jobs because the jobs _________. A．make them feel much better B．provide chances to m ake friends C．improve their social position D．satisfy their professional interests 小题3:Aged people are more likely to feel happy because they are more _________. A．optimistic B．p ractical C．successful D．emotional 小题4:Professor Alex Michalos found that people feel less happy if __________. 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