完形填空

阅读下面短文，掌握其大意，然后从各题所给的A、B、C和D项中，选出最佳选项。

　　Mary Kimble-smith was an ordinary 12-year-old girl; ordinary, that is, in every way except one．She suddenly started to walk in her 　　1　　．No one knew why this happened．The best guess seems to be that it represents 　　2　　：the sleep-walker is worried．This feeling normally remains under control during 　　3　　 hours, but at night, when the mind is in a more passive mode, it 　　4　　 to the surface and shows itself in the form of physical movement．

　　At first, her family 　　5　　 help from just about every doctor they could find．But none of them were able to suggest a means by which she could be 　　6　　．Then her parents were frightened, and they tried to wake her up．In fact, the general advice is that we should not wake a sleepwalker．To wake a person and bring them to a sudden 　　7　　 that they are not where they thought they were could 　　8　　 the feelings of anxiety and perhaps even reinforce the habit．

　　Most sleepwalkers at last stop without any warning-they just 　　9　　 do it again．In Mary's case though, she 　　10　　 sleep-walking soon after her twelfth birthday and was still doing it the day before she died in 1989, at the age of 93．

完形填空

　　Once upon a time, there lived a man who wanted to achieve everything he was capable of achieving．He was obsessed with this desire－he ate, slept, and walked with one and only dream：to die, having accomplished every single thing he was able to accomplish．

　　There were so many things he could do．He felt like the whole world could be his, 　　1　　 he set his mind to it．

　　He knew that his 　　2　　 had no limits．He knew that he could accumulate 　　3　　 that would dwarf(使相形见绌)that of ancient kings; he knew that he could 　　4　　 books that would shake the minds of generations; he knew that he could 　　5　　 things that would forever change the lives of millions of people．He lived, constantly feeling the power within－and that power knew no bounds．

　　There was only one problem：having such a potential, but only one 　　6　　, he had to make a choice．He had to decide where to 　　7　　 all of his ability．Making that decision was extremely hard, for any 　　8　　 meant cutting off some future achievements．In the meantime, he went to school, graduated, found a job, married, and 　　9　　 children．And he spent every minute of his spare time trying to decide 　　10　　 he should bring his potential into full play．

　　Time went by, and he grew 　　11　　．Some roads he used to dream about became closed to him．But there was still so much he could accomplish．

　　One day, a sudden chest pain made him come home early．He dragged his feet to the bathroom．There, feeling 　　12　　, he looked in the mirror．A worn-out, gray-haired man stared back at him．He looked 　　13　　 into these eyes and, all of a sudden, 　　14　　 one simple truth．The next moment, the pain came again, and his heart stopped 　　15　　 forever．

　　The truth that came upon him was rather simple：People only flatter themselves(自以为是，自鸣得意)by thinking that they could have 　　16　　 this or that if not for such-and-such circumstances．Yet this is nothing but 　　17　　．You simply lack something that is 　　18　　 for achieving that goal you've never reached－a talent, a skill, willpower, 　　19　　 something else．In fact, 　　20　　 you don't achieve is something you're not capable of achieving．