单选题
A. abolish B. accelerate C. ambiguity D. bring E. dispense F. evidence G. expenditure H. inquiry I. irrational J. lead K. outpace L. shift M. simply N. striking O. unanimously For the past four decades that basic tension between artificial intelligence and intelligence augmentation (增加)—A.I. versus I.A. —has been at the heart of progress in computing science as the field has produced a series of ever more powerful technologies. Now, as the pace of technological change continues to 42 , it has become increasingly possible to design computing systems that enhance the human experience, or now—in a growing number of cases—completely 43 with it. Watson is an effort by IBM researchers to advance a set of techniques used to process human language. It provides 44 evidence that computing systems will no longer be limited to responding to simple commands. Machines will increasingly be able to pick out jargon (行话) and even riddles. In attacking the problem of the 45 of human language, computer science is now closing in on what researchers refer to as the 'Paris Hilton problem' —the ability, for example, to determine whether an 46 is being made by someone who is trying to reserve a hotel in France, or 47 to pass time surfing the Internet. Traditionally, economists have argued that while new forms of automation may displace jobs in the short run, over longer periods of time economic growth and job creation have continued to 48 any job-killing technology. Over the past century and a half the 49 from being a largely agrarian (农业的) society to one in which less than 1 percent of the United States labor force is in agriculture is frequently cited as 50 of the economy's ability to reinvent itself. Rapid progress in natural language processing is beginning to 51 to a new wave of automation that promises to transform areas of the economy that have until now been untouched by technological change.
【答案解析】分析句子结构可知，句末的代词it指代前面的the human experience，句中的or提示空格所填词应与前面的动词enhance并列，所以空格处应填入动词，且能与空格后的介词with相搭配。 本句指出，计算机系统增强人类体验，或现在则完全______人类体验。结合备选动词可知，答案为dispense (with)“不用，摒弃”。
【答案解析】空格前为不定式符号to，空格后为名词短语any job-killing technology，因此空格处应填入动词原形。 结合句中while表示的转折之意、in the short run和over longer periods of time的对比以及备选动词可知，outpace“超过，比……快”符合题意。
问答题
【正确答案】L
【答案解析】本句结构较复杂，介词短语Over the past century and a half为句子的时间状语，the ______ from...to...in agriculture为句子的主语，主语部分缺少中心词，故空格处应填入名词。 结合空格后面的内容“美国从基本是农耕社会到农业劳动人口占总劳动人口不足1%的社会”及备选名词可知，shift“改变，转变”符合题意，the shift from...to...意为“从……到……的转变”。