Ⅰ.阅读理解

　　People, whose desk space is well ventilated (使空气流通) with below average indoor pollution and carbon dioxide levels, showed more ability to think, understand, remember and learn, according to a new study. Researchers at Harvard claim that working in a green office can help increase the brainpower. It's clear that the indoor air quality can have a great impact on the performance of workers.

　　Researchers looked at the decision­making abilities of 24 participants (参与者), who were exposed to different indoor working conditions over six days. The data showed that those with higher levels of pollutants were less able to finish the work. Participants scored an average of 61 percent higher while working in buildings with the low pollution level, compared with those working in the conventional buildings.

　　The participants were tested on everything from the basic task to crisis (危机) response and information seeking. When low carbon dioxide levels were combined with lower level of pollutants in buildings, scores were 101 percent higher than in buildings with the same decoration and furniture, which researchers said was important. All the time, it is not typically thought of as a direct indoor pollutant.

　　Dr Joseph Allen, director of the healthy buildings program at the Centre for Health and Global Environment, notes the air quality in the office is an area that has been largely ignored. Fortunately, the research results from Harvard has sounded the alarm in time. "We spend 90 percent of our time indoors, yet indoor environment and its impact on health and productivity are often an afterthought，" he said.

　　It has turned out that even the modest improvement to indoor air quality may contribute to the decision­making performance of workers. British research has found that having plants in the workplace can increase productivity by 15 percent by making workers more physically and emotionally involved in their jobs.

　　语篇解读：本文为说明文，题材为科普环保类。研究人员发现，通风良好的绿色办公室有助于提升脑力，室内空气质量对员工的决策力和工作表现有很大的影响。

　　1．What's the new finding from Harvard?

　　A．It's necessary to paint the office green.

　　B．Fresh air can improve work efficiency.

　　C．Air quality in the office is usually poor.

　　D．People make more mistakes in big offices.

　　解析：选B　细节理解题。由第一段可知，哈佛大学的研究发现，在通风条件良好、室内空气污染和二氧化碳水平均低于平均水平的地方，人们表现出更强的思考、理解、记忆和学习能力。

　　2．What does the underlined word "it" in Paragraph 3 refer to?

　　A．Furniture.　　　　　　　B．Decoration.

　　C．Carbon dioxide. D．The level of pollutants.

　　解析：选C　代词指代题。由第三段可知，在二氧化碳含量低而且室内污染物少时，参与者的得分比在装修和家具相同的办公室里时高出101%。研究人员称这一发现十分重要，因为一直以来，人们并不认为二氧化碳是直接的室内污染物。

　　3．What's the attitude of Dr Joseph Allen to the research results from Harvard?

　　A．Critical. B．Positive.

　　C．Doubtful. D．Unconcerned.

　　解析：选B　观点态度题。由第四段可知，约瑟夫·艾伦博士说，办公室的空气质量在很大程度上一直被人们所忽视。幸好，哈佛大学的研究结果及时为人们敲响了警钟。由此可推测，他对研究结果是持肯定的态度。

4．We can infer from the last paragraph that .