问题 完形填空
完形填空。
     After retirement from medical research, my wife and I built our home on Hilton Head Island. But
when I traveled on dirt roads     1     with simple farm houses. I was     2     to discover that the majority
of the maids, gardeners, waitresses and construction workers who made this island work had     3     or
no access to medical care. I wondered why someone didn't do something about that.     4   my father's
words, which he had asked his children      5     when they were young, rang in my head again: "What
did you do for someone today?"
     _   6   my father had died several years before, I guess I still didn't want to     7    him. So I started
working on a solution. The island was full of     8     doctors. If I could     9____  them to spend a few
hours a week volunteering their services, we could provide     10     primary health care for those who
need it     11  . Most of the doctors I talked with liked the idea and with much effort I was able to
persuade the local government to create a special license for doctors volunteering in not-for-profit clinics.
     The town     12     land, local people contributed office and medical equipment. And within one year,
we opened the doors of the clinic and named it Volunteers in Medicine with retired doctors, ___ 13  
and dentists as well as nearly 150 nonprofessional volunteers. That year we had 5,000 patient visits and
last year we had 16,000. Somehow word of what we were doing got      14     . Soon we were     15  
phone calls from retired doctors all over the country,     16    help in starting VIM clinics in their own
communities. We did the best we could - there are now 15 other clinics operating -    17     we couldn't
keep up with the need. Yet last month I think my father's words found their 38   up north, to McNeil
Consumer Healthcare, a well-known     19    company.    20   a large sum of money from McNeil, we
shall respond to these requests and help establish other free clinics in communities around the country.
( )1.A. covered    
( )2.A. excited    
( )3.A. little    
( )4.A. At the same time
( )5.A. weekly    
( )6.A. Although    
( )7.A. discourage  
( )8.A. professional
( )9.A. advise    
( )10.A. cheap    
( )11.A. truly    
( )12.A. sold      
( )13.A. nurses    
( )14.A. in      
( )15.A. expecting  
( )16.A. providing  
( )17.A. so      
( )18.A. way      
( )19.A. clothing  
( )20.A. Together with
B. equipped    
B. delighted    
B. few        
B. On the contrary
B. rarely    
B. When        
B. disappoint    
B. well-known   
B. persuade    
B. timely      
B. immediately  
B. donated    
B. cleaners    
B. around      
B. receiving  
B. asking for  
B. since    
B. effect    
B. medicine    
B. But for    
C. filled
C. shocked
C. much  
C. And then  
C. monthly
C. whether
C. surprise
C. retired
C. employ  
C. convenient
C. quickly
C. set up  
C. drivers
C. out  
C. making  
C. offering
C. but  
C. influence
C. food  
C. As for  
D. lined            
D. frightened      
D. plenty of        
D. On the other hand
D. daily            
D. Because          
D. disturb          
D. experienced      
D. pay              
D. free            
D. badly          
D. shared          
D. assistants      
D. through          
D. hearing          
D. supplying        
D. because          
D. spirits          
D. construction    
D. Thanks to        
答案

1-5 DCACD           6-10 ABCBD   11-15DBABB           16-20 BCABD

单项选择题
单项选择题

请根据下文回答41-45题:
说到生物世界里的发光现象,人们首先会想到萤火虫,但是除了这种昆虫外,还有许多生物也能发光,人们发现,不同的生物会发出不同颜色的光来,所有的植物在阳光照射后都会发出一种很暗淡的红光,微生物一般都会发出淡淡的蓝光或浅绿光,某些昆虫会发出黄光。仔细地划分一下,生物发光可分两类:一类是被动发光,如植物,那些微弱的红光不过是没能参与光合作用的多余的光,这种光对植物是否有着生物学上的意义目前还是个谜,但一般的看法是这种光无意义,就像涂有荧光物质的材料经强光照射后再置于黑暗中发光那样;另一类是主动发光,尽管有一些主动发光的意义目前还未全部认识清楚,但有一点是可以肯定的,绝大多数生物的主动发光是有用途的。光是一种能量,主动发光是对能量的一种[ ]生物的生存策略有一个最基本的共同点,那就是在维持生命的正常活动中最大限度地去节省能量,因此主动发光必定是主动受光生物生存的一个重要手段。
1885年,杜堡伊斯在实验室里提取出萤火虫的荧光素和荧光素酶,指出萤火虫的发光是一种化学反应,后来,科学家们又得到了荧光素酶的基因。经过科学家们的研究,萤火虫的发光原理被完全弄清楚了。我们知道,化学发光的物质有两种能态,即基态和激发态,前者能级低而后者能级很高。一般地说,在激发态时分子有很高并且不稳定的能量,它们很容易释放能量重新回到基态,当能量以光子形式释放时,我们就看到了生物发光,如果我们企图使一个物体发光,我们只需要它足够的能量使它从基态变成激发态就行了。但生物要发光则需要体内的酶来参与,酶是一种催化剂,并且是高效率的催化剂。它可以促使化学反应的发生,给发光物质提供能量,且能保证以较少的能量使发光强度尽可能高。在萤火虫体内,ATP(三磷酸腺苷)水解产生能量提供给荧光素而发生氧化反应,每分解一个ATP氧化一个荧光素就会有一个光子产生,从而发出光来。目前已知,绝大多数的生物发光机制是这种模式。不过在发光的腔肠动物那里,荧光素则换成了光蛋白,如常见发光水母的绿荧光蛋白,这些绿荧光蛋白与钙或铁离子结合发生反应从而发出光来。

文中[ ]应填入的词语是( )。

A.消耗

B.耗损

C.耗费

D.浪费