A. expansion B. expedition C. exploitation D. exploration

　　What is the thing called happiness? For centuries, people were too busy pursuing it 39 much time analyzing it. Now a pioneering band of researchers has finally bagged the elusive quarry or at least taken its measure. Using such sophisticated new tools 40 the five-item Life Satisfaction Scale and the seven-point Delighted-terrible Scale (On a scale of one to seven, how do you feel about your life?),social psychologists have plumbed the heart of happiness. And their answer to the age-old 41 is that it all depends.

　　Happiness, that is, 42 what makes. you feel happy, which is why psyc1hologists often call it“subjective well-being.” But from studies of various age and population groups in the United States and abroad, they have reached some

　　44 at the top of the charts is not, as many might expect, success, youth, good looks or any of those 45 assets. The clear winner is relationship, close ones, followed by happy marriage. Supportive, intimate connections with other people seem 46 important. Using simple survey questions, psychologist David Myers found that the 47 happy people are those in unhappy marriages. Happiest are those who married 48 their “best friend.”

　　39.A.to spend B.spending C.has spent D.have spent

　　40.Alike B.alike C.as D.for instance

　　41.A.psychology B.mystery C.solution D.trick

　　42.A.results in B.leans against C.dependes on D.arrives at

　　43.A.realistic B.idealistic C.objective D.individualistic

　　44.A.endlessly B.contradictorily C.harmoniously D.consistrntly

　　45.Aenviable B.reliabele C.inevitable D.endurable

　　46.A.vastly B.tremendously C.swiftly D.basically

　　47.A.most B.best C.least D.worst

　　48.A.to B.with C.for D.off