Questions 6 to 10 are based on the following passage.
【真题来源：2018年6月大学英语四级真题（第二套）Part Ⅲ，Section C，第46-50题】
Passage One
Living in an urban area with green spaces has a long-lasting positive impact on people 's mental wellbeing, a study has suggested. UK researchers found moving to a green space had a sustained positive effect, unlike pay rises or promotions, which only provided a short-term boost. Co-author Mathew White, from the University of Exeter, UK, explained that the study showed people living in greener urban areas were displaying fewer signs of depression or anxiety. “There could be a number of reasons,” he said, “for example, people do many things to make themselves happier: they strive for promotion or pay rises, or they get married. But the trouble with those things is that within six months to a year, people are back to their original baseline levels of well-being. So, these things are not sustainable ； they don't make us happy in the long term. We found that for some lottery (彩票) winners who had won more than £ 500,000 the positive effect was definitely there, but after six months to a year, they were back to the baseline. ”
Dr. White said his team wanted to see whether living in greener urban areas had a lasting positive effect on people's sense of well-being or whether the effect also disappeared after a period of time. To do this, the team used data from the British Household Panel Survey compiled by the University of Essex.
Explaining what the data revealed, he said: “What you see is that even after three years, mental health is still better, which is unlike many other things that we think will make us happy. ” He observed that people living in green spaces were less stressed, and less stressed people made more sensible decisions and communicated better.
With a growing body of evidence establishing a link between urban green spaces and a positive impact on human well-being, Dr. White said, There's growing interest among public policy officials, but the trouble is who funds it. What we really need at a policy level is to decide where the money will come from to help support good quality local green spaces.
According to one study, what do green spaces do to people?
细节题。原文第一段第一句话指出，一项研究表明，生活在具有绿色空间的市区对人们的幸福感有着持久的积极影响。B项中的sustained同义替换原文中的long-lasting，happiness同义替换原文中的mental well-being，故答案为B。A、C、D三项原文均未提及，故排除。
What does Dr. White say people usually do to make themselves happier?
细节题。原文第一段倒数第四句话指出，怀特博士说，人们做了很多事情来让自己更快乐：他们努力争取升职或加薪，或者结婚。故答案为A。B、C两项原文均未提及，故排除。D项答非所问，生活在绿色环境中能让人们更幸福是怀特博士的研究得出的结论，并非人们做的让自己更快乐的事情，故排除。
What does Dr. White try to find out about living in a greener urban area?
细节题。原文第二段第一句话指出，怀特博士说，他的团队想要看看生活在绿色的市区是否会对人们的幸福感产生持久的积极影响，或者这种影响是否会在一段时间后消失。由此可知，怀特博士的研究旨在发现绿色的市区对人们的幸福感的影响持续多久，故答案为C。A、D两项原文均未提及，故排除。B项与原文不符，怀特博士的研究对象并不是积极影响有多大，而是积极影响会持续多久，故排除。
What did Dr. White's research reveal about people living in a green environment?
细节题。原文第三段最后一句话指出，怀特博士观察到，生活在绿色空间的人们压力较小，而且这些压力更小的人做出的决定更明智，与人交流更通畅。由此可知，生活在绿色环境中的人们沟通能力有所提升，故答案为D。A项与原文不符，第三段最后一句话指出，生活在绿色空间的人压力更小了，而不是更明显，故排除。B项与原文不符，原文提到的是生活在绿色空间的人压力小，因此可以做出更明智的决定，并不是做决定时考虑的因素更少，故排除。C项原文未提及，故排除。
According to Dr. White, what should the government do to build more green spaces in cities?
推理题。原文最后一段指出，怀特博士说，政府官员对城市绿色空间的兴趣越来越浓厚，但问题是谁来出资。因此政府应该做的是找到财政支持，故答案为A。B、C、D三项原文均未提及，故排除。