Middle Age: A Low Point for Most
　　People around the globe hit the height of their misery and depression in_____ 1 age, a new international study suggests.
　　The finding by British and American researchers was based on an analysis of well-being among approximately 2 million people in 80 nations. With few exceptions, the observation appears to apply across the board, regardless _____2 gender, culture, geography, wealth, job history, education, and marriage or parental status.
　　"The scientific fact seems to be that happiness and positive mental health follow a giant ’U’ _____3 through life," said study author Andrew J. Oswald, a professor of economics at Warwick University in Warwickshire, England. "For the average person, it’s high when you’re 20, and then it slowly falls and bottoms out_____ 4 your 40s. But the good news is that your _____5 health picks up again, and eventually gets back to the high levels of our youth."
　　The finding was_____ 6 on the pooling of several different sources of happiness data, including: two multi-decade happiness/satisfaction surveys (first launched in the 1970s), involving about 500,000 American and Western European men and women; four rounds of the 80-nation "World Values Survey" _____ 7 between 1981 and 2004 in North America, Eastern and Western Europe, Asia, Africa, Australia, and Central and South America; and a 2004-2007 survey _____ 8 nearly 1 million Britons.
　　The bottom-line: For most people throughout the world, the highest probability for depression striking is around 44 years of _____9 .
　　In the United States, however, some as-yet unexplained _____ 10 differences were observed, with happiness among men dipping the most in their early 50s, whereas women hit their nadir around the age of 40.
　　The researchers cautioned that cheerful people tend to live longer than unhappy _____ 11 -- a fact that might have skewed the overall finding. But they also suggested that evidence of a happiness_____ 12 might simply reflect a midlife choice to give up long-held but no longer tenable aspirations, followed by a senior’s sense of gratitude for having successfully endured _____13 others did not.
　　"That said, some might find it helpful simply to understand the general _____14 of mental health as they go through their own life," said Oswald. "It might be useful for people to realize that if they are_____15 in their 40s, this is normal. It is not exceptional. And just knowing this might help."
　　練習(xí)：
　　1. A old B middle C right D young
　　2. A of B for C to D by
　　3. A color B size C shape D letter
　　4. A with B on C in D upon
　　5. A mental B good C general D physical
　　6. A focused B concluded C decided D based
　　7. A measured B conducted C checked D inspected
　　8. A taking B counting C involving D accepting
　　9. A age B marriage C experience D work
　　10. A race B gender C education D income
　　11. A men B people C women D families
　　12. A curve B line C axis D table
　　13. A unless B because C while D since
　　14. A moods B figures C views D trends
　　15. A poor B low C old D weak
　　答案：B　A　C　C　A 　D　B　C　A　B　 B　A　C　D　B