单选题 Go (围棋) is an ancient Asian game. In recent years, computer experts, particularly those 27 in artificial intelligence, have felt the fascination. Programming other board games has been a relative snap. Even chess has 28 to the power of the processor. Five years ago, a chess-playing computer called Deep Blue not only beat but thoroughly 29 Garry Kasparov, the world champion at that time. That is because chess, while highly complex, can be reduced to a matter of brute force computation. Go is different. Deceptively easy to learn, either for a computer or a human, it is a game of such depth and 30 that it can take years for a person to become a strong player. To date, no computer has been able to achieve a skill level beyond that of the casual player.
The game is played on a board divided into a grid of 19 31 and 19 vertical lines. Black and white pieces called stones are placed one at a time on the grid's intersections. The object is to acquire and defend 32 by surrounding it with stones. Programmers working on Go see it as more accurate than chess in 33 the ways the human mind works. The challenge of programming a computer to mimic that process goes to the core of artificial intelligence, which involves the study of learning and decision-making, strategic thinking, knowledge representation, pattern recognition and perhaps most intriguingly, intuition.
In the 34 of a chess game, a player has an average of 25 to 35 moves available. In Go, on the other hand, a player can choose from an average of 240 moves. A Go-playing computer would need about 30000 years to look as far ahead as Deep Blue can with chess in three seconds. But the 35 go deeper than processing power. Not only do Go programs have trouble evaluating positions quickly; they have trouble making it correctly. 36 , the allure (吸引力) of computer Go increases as the difficulties it poses encourages programmers to advance basic work in artificial intelligence.
A. complexity
B. Consequently
C. course
D. horizontal
E. humbled
F. humiliated
G. Nonetheless
H. obstacles
I. reflecting
J. responding
K. slanted
L. specializing
M. submitted
N. subscribed
O. territory

问答题

【正确答案】L

【答案解析】动词辨析题。分析句子结构可知，空格所在部分为插入语，对主语computer experts进行进一步说明，空格处应填形容词或动词的现在分词，且该词能与介词in搭配。结合句意和备选词可知，specializing“专门研究，专攻”符合题意。

问答题

【正确答案】M

【答案解析】动词辨析题。由句子结构和空格前的has可知，空格处应填动词的过去分词，且此动词能与to搭配。上一句提到，编写其他棋类游戏的电脑程序都比较简单，本句承接上句说明国际象棋也能被编成电脑程序，因此submitted“同意服从，顺从”符合题意。

问答题

【正确答案】E

【答案解析】动词辨析题。由句中的not only...but...结构可知，空格处应填一个动词与前面的动词beat并列。本句举例说明国际象棋服从于强大的电脑程序，这台名为“深蓝”的电脑不仅在技术上打败了世界冠军，还在精神上打败了他，备选动词中的humbled“击败”符合题意。

问答题

【正确答案】A

【答案解析】名词辨析题。分析句子结构可知，of such depth and ______为后置定语修饰前面的a game，因此空格处应填入与depth意义相当的名词。结合空格后面的句意“一个人要成为一名(围棋)强手需要好几年”可知，备选名词中，complexity“复杂性，错综复杂”符合题意，此处指围棋是非常复杂的游戏。

问答题

【正确答案】D

【答案解析】形容词辨析题。分析句子结构可知，19 ______应与19 vertical lines并列，因此空格处应填入与vertical意义相当的形容词，备选形容词中，只有horizontal“水平的”符合题意。

问答题

【正确答案】O

【答案解析】名词辨析题。根据空格前的acquire and defend和空格后的by可知，空格处应填入名词作宾语。根据常识，下围棋时，对战双方通过棋子来扩大自己的领土，故答案为territory“领地”。

问答题

【正确答案】I

【答案解析】动词辨析题。空格前为in，后为名词短语the ways，因此空格处较有可能填动名词。根据句意，空格所在分句解释说明在某个方面，围棋比国际象棋更为精确。因此，reflecting“反映”符合题意。

问答题

【正确答案】C

【答案解析】名词辨析题。根据空格前的定冠词the和空格后的介词of可知，空格处应填入名词。根据后半句句意“每位棋手平均可以走25至35步棋”可知，course“过程”符合题意。

问答题

【正确答案】H

【答案解析】名词辨析题。分析句子结构可知，此处应填入名词作主语。结合下一句来看，本句强调了编写围棋电脑程序的困难不仅仅在于电脑的数据处理能力和速度不快，而且在于其准确度也很低。所以，空格所填词应该表示“难处”，故obstacles“障碍，阻碍”符合题意。

问答题

【正确答案】G

【答案解析】副词辨析题。分析句子结构可知，该句不缺成分，结合空格后的逗号可知，空格处应填一个副词，修饰整个句子。结合前后句意可知，所填副词应含有转折之意，因此Nonetheless“然而，尽管如此”符合题意。