单选题     A. excessively      B. collectively    C. positive      D. automate
    E. adoption          F. embed          G. respective    H. pollutants
    I. degradation      J. neutralize      K. pervasive      L. additive
    M. baffle            N. bind            O. available
    What if clothing was more than just an accessory? The green movement is not new to fashion, and many designers and manufacturers have been actively seeking out ways to ensure their garments have less of an environmental impact. But what if your clothes were actually able to have a     42    impact on the environment?
    This vision is one shared by the two founders of Catalytic Clothing(触媒服装): Professor Tony Ryan, a scientist from the University of Sheffield, and Professor Helen Storey, a designer and artist from the London College of Fashion. Together they are working on a project that draws on the growing field of nanotechnology(纳米技术) to create a fabric     43    that can break down pollutants in the air.
    'In a sense, it's a recycling of an existing technology that exists in toothpaste and sunscreen,' Professor Storey explains. The additive contains nanoparticles of titanium dioxide which act as a catalyst (触媒剂;催化剂). When light hits these particles, they react with oxygen to make what is essentially a peroxide(过氧化物) bleach. This in turn reacts with air     44    such as nitric oxide and breaks them down.
    While this technology could be used to create an entirely new fabric, Professor Ryan thinks that it has greater potential as an additive. 'It only needs to be on the surface,' he says. 'You don't     45    it in the fibers, and that means that it's really easy to upgrade existing fabrics with the technology. We think the best way to do this is via the laundry, because everyone washes their clothes.'
    Jeans have been a particular focus of Catalytic Clothing, both because they are widely prevalent as well as that the particles     46    especially well to cotton denim. And while the amount of air pollutants broken down by any one individual wearing catalyzed jeans is minor, '    47    , we can have a huge impact on the quality of the air and therefore respiratory health,' Storey says.
    According to Ryan, 4 people wearing catalyzed jeans in a day would     48    the nitric oxide air pollution created by one car.
    The future might be one in which this pollution-busting fabric additive is so     49    that we no longer give it a second thought, like fluoride(氟化物) in tap water. Though at the moment it's not commercially     50    , Ryan estimates that it could be with in a year or class. Catalytic Clothing is aiming for mass     51    . The day is near when we'll be able to make our clothes work for us in more ways than one.
问答题    
 
【正确答案】C
【答案解析】根据句子结构可知,空格处缺少一个形容词。上文的...many designers and manufacturers have been actively seeking out ways to ensure their garments have less of an environmental impact与空格所在句子由but连接,由此可推知本句句意应为“但是如果你的服装真的能够给环境带来积极的影响,那又会怎么样?”备选项中的positive“积极的”符合,故选C。
问答题    
 
【正确答案】L
【答案解析】根据句子结构可知,空格处缺少一个名词。该句句意为“他们正在合作开展一个项目,采用纳米技术的最新成果,研制出一种可以分解空气中污染物的布料……”。由此可推测这是一种布料(纤维)添加剂,备选项中的additive“添加剂”符合,故选L。
问答题    
 
【正确答案】H
【答案解析】根据句子结构可知,空格处缺少一个名词。由空格后的such as nitric oxide“一氧化氮”可知,空格处说的是空气污染物,备选项中pollutants“污染物”符合,故选H。
问答题    
 
【正确答案】F
【答案解析】根据句子结构可知,空格处缺少一个动词。由空格所在句上文提到的“它仅仅需要附着在表面上”可推知,本句话的意思应为“不用把这种添加剂嵌入到布料中”,备选项中的embed“把……嵌入”符合,故选F。
问答题    
 
【正确答案】N
【答案解析】根据句子结构可知,空格处缺少一个动词。as well as连接的前半部分they are widely prevalent“它们广泛流行”是这种添加剂的优点之一,由此可推知后半部分应该也是其优点“这种添加剂颗粒与牛仔裤的棉质布料结合得尤其好”,备选项中的bind“(使)结合”符合句意,故选N。
问答题    
 
【正确答案】B
【答案解析】根据句子结构可知,空格处缺少一个作插入语的副词。由上文的...while the amount of air pollutants broken down by any one individual wearing catalyzed jeans is minor可推知,本句句意应为“穿的人多了就可以极大地影响空气质量”,备选项中的collectively“共同地,全体地”符合句意,故选B。
问答题    
 
【正确答案】J
【答案解析】根据句子结构可知,空格处缺少一个动词,且应为动词原形。由上文可知,这种布料制成的牛仔裤可以分解空气中的污染物,故本句句意应为“如果四个人穿一天这种含有催化剂的牛仔裤,那么就可以分解一辆汽车所产生的一氧化氮空气污染物”。备选项中的neutralize“(用化学品)中和,使成为中性”与句意相吻合,故选J。
问答题    
 
【正确答案】K
【答案解析】根据空格前的is so和空格后的that可知,空格处缺少一个形容词。由空格所在句下文中的that we no longer give it a second thought, like fluoride in tap water可推知,如同我们在自来水中使用氟化物一样,这种分解污染的布料添加剂将变得很普遍,备选项中的pervasive“普遍的,无处不在的”符合句意,故选K。
问答题    
 
【正确答案】O
【答案解析】根据句子结构可知,空格处缺少一个形容词。根据上下文可知,目前该产品还处在研究阶段,还没有被大众消费者所接受,也就是还没有进行商业销售,备选项中的available“可获得的,可用的”符合句意,故选O。
问答题    
 
【正确答案】E
【答案解析】根据句子结构可知,空格处缺少一个名词。结合上文的like fluoride in tap water可推知,触媒服装正在努力使大众接受并采用这项技术。备选项中的adoption“采纳,接受”可以与空格前的mass搭配,表示“大规模使用,被公众接受”,故选E。