Question 5 is based on the news report you have just heard.

听力原文

    (5) [A man in Halifax, Canada, wanted to find out if people were thankful for someone holding the door open for them.] The social experiment showed that (7) [99 out of 100 people expressed gratitude.] “I didn’t think we were going to get 99. I don’t know why, but I was pleasantly surprised because it went beyond just ‘thank you’. People got into conversations with us,” said Steve Foran, CEO of Gratitude at Work. “What we know from research is that from grateful people come good things”, he said. “A simple way to induce gratitude in people is opening doors, (6) [and so we went to six places and opened the doors for people.]” For the experiment, Foran’s team went to a shopping centre, a mall, two office buildings, and a coffee shop. (6) [The door was held for 15 to 20 people at a time at each location.] “We did have one that didn’t say thank you. We’re not here to judge them because on any given day, that could be me or you. I suspect out of the 100 people, there were probably a bunch of them having a bad day, (7) [but grateful people make people grateful]”, said Foran.

5. What is the purpose of the social experiment?（这项社会实验的目的是什么？）

解析：A。此题可用到视听一致原则作答。录音开头说到，加拿大哈利法克斯的一名男子想知道人们是否会感谢帮他们扶门的人。他的社会实验显示，100人中有99人表示了感谢。因此社会实验的目的是调查人们是否会对获得的帮助表示感激，A选项符合题意。

错项排除：录音中提到，社会实验的内容是到不同地方为人们开门，但实验的目的并不是看看人们是否会帮陌生人扶门，故B项错误。录音中提到，引导人们感恩的一个简单方法就是帮他们开门，但这是实验的方法，并非实验目的，故C项错误。D项利用录音中的find out和expressed gratitude进行细节拼凑，但“表达感谢”只是大多数受试者的表现，没有提及人们表达感谢的方式，故排除。