Question 12 is based on the passage you have just heard.

听力原文

    Setting the office air-conditioning at about 22 degrees Celsius has become standard practice across the world. Numerous guidebooks across the world on heating, ventilation and air-conditioning claim office performance peaks at 22 degrees. Many people indeed find relief from soaring summer temperatures in air-conditioned offices, (12) [but recent studies have challenged the accepted wisdom that a cool office is more productive: the reality is more complex.] 

    Researchers conducted a review of all studies relating to air-conditioning and productivity. They found that 22 degrees was probably a little chilly, even at the height of summer. (13) [For a person dressed in typical summer clothing, an optimal range would be between 23 and 26 degrees.] And people can even tolerate temperatures beyond this “comfort zone”, as long as they can adjust their clothing and expectations. (14) [In fact, even on very hot days, it makes sense to turn the air-conditioning up.] People often chase just one “optimum” temperature. And this is understandable when people feel hot, (14) [but there is a range of at least 3 to 4 degrees which does not have any adverse impact.] 

    Another issue related to this is that people can become psychologically dependent on air-conditioning. (15) [If they are used to the environment which is air-conditioned, they tend to prefer lower temperatures.] But the studies found that almost all humans became accustomed to the new temperature. It was only at the “extreme” ends of the temperature range where people’s productivity suffered. This range was above 26 degrees and below 19 degrees.

12. What is the accepted wisdom concerning the office environment?（关于办公室环境，人们普遍接受的观点是什么？）

解析：B。录音前半部分提到，最近一项研究对“凉爽的办公室中效率更高”这一人们普遍接受的观点提出了质疑：实际情况其实要更复杂。也就是说，人们普遍认为在凉爽的办公室中工作效率更高。B项与此内容相符，其中A cool office为原词复现，boost employees’ productivity是对录音中的is more productive的同义替换，故B项为正确答案。

错项排除：A项利用ventilated设置干扰，录音中虽然提到了通风（ventilation），但只是说世界上无数供热系统、通风系统和空调的说明书都称，办公室的最佳温度是22度，并没有提到办公室中自然通风更舒适，故A项排除。录音中只提到说明书建议办公室的最佳温度是22度，没有提到人们普遍认为办公室的空调应该按照说明书调节温度，C项属于过度引申，故错误。录音中是将空调系统和通风系统作为并列的两种设备进行说明的，没有提到开空调能改善办公室的通风，D项只是利用Air-conditioning和ventilation进行细节拼凑，故排除。