【正确答案】 D

【答案解析】[听力原文] M：Have you ever had to do experimental research before? W：Once．Haveyou? M：Yes，but only for secondary school． W：What did you do it on? M：1 was looking at how far people traveled to different kinds of shops．I used a questionnaire and interviewed shoppers． W：How did it go? M：Not bad．but I did cheat a bit． W：Oh，really! M：Yes，I didn't use any system of choosing who I interviewed．I just asked those who looked friendly and nice，and who I thought would answer my questions．I didn't ask many men or those shoppers who looked busy either． W：at doesn't sound so terrible! M：Wlell，it did probably bias the results，and I'm sure that if my teacher had known，I'd have had to do it again．What kind of research did you do? W：I volunteered to do a survey last summer．1 was asked to investigate the kinds of shops that had closed， and those that remained didn't cater to local needs． M：That sounds interesting．Did you have any problems? W：Yes．the first few days I tried recording a list of all the properties in the town center．But later I knew, cafes，pubs，clubs and so on weren't considered shops．Once I got all the information collected，my main trouble was deciding how to present it．I ended up writing a very short report． M：I would have made the same mistake，I'm sure! Let's hope this Project for Economics will go smoothly… What are the two speakers talking about? [考点] 综合理解题 对话开头男士先提到做实验研究，继而引出下面的对话，后面女士又谈到自己在去年夏天做过一个调查，综合理解上述信息，整个对话围绕研究(research)和调查(survey)进行谈论，所以选D。

【正确答案】 C

【答案解析】[听力原文] Why does the man think his research results are biased? [考点] 细节题 对话中当女士问男士实验研究的结果如何时，男士说自己的确有一点点作弊，因为没有使用任何系统来随机抽取受访对象，而只是采访了那些看上去友好和善的人，所以选C。

【正确答案】 A

【答案解析】[听力原文] According to the woman，which of the following are probably considered shops by the local people? [考点] 推断题 对话中女士没有直接说问题的答案，而是说咖啡馆、酒吧和俱乐部(cafes，pubs，clubs and so on)不被认为是商店，因此排除选项B、C和D，所以选A。

【正确答案】 B

【答案解析】[听力原文] What will the two speakers probably do? [考点] 综合理解题 对话一直在谈论researches and surveys的内容和进展过程中的问题，在对话结束时男士说让我们共同祝愿这个经济学项目进展顺利，所以选B。