完形填空(共20小题；每小题l.5分，共30分)
阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
The Man Who Achieved Everything He Could
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, 36   he set his mind to it.
He knew that his  37  had no limits. He knew that he could accumulate  38  that would dwarf (使相形见绌) that of ancient kings; he knew that he could  39  books that would shake the minds of generations; he knew that he could  40  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  41, he had to make a choice. He had to decide where to  42  all of his ability. Making that decision was extremely hard, for any  43  meant cutting off some future achievements. In the meantime, he went to school, graduated, found a job, married, and  44  children. And he spent every minute of his spare time trying to decide  45  he should bring his potential into full play.
Time went by, and he grew  46. 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  47, he looked in the mirror. A worn-out, gray-haired man stared back at him. He looked  48  into these eyes and, all of a sudden, 49  one simple truth. The next moment, the pain came again, and his heart stopped  50  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  51  this or that if not for such-and-such circumstances. Yet this is nothing but  52  . You simply lack something that is  53 for achieving that goal you’ve never reached — a talent, a skill, willpower, 54 something else. In fact, 55  you don’t achieve is something you’re not capable of achieving.

A．before B．since C．if D．though

A．wisdom B．potential C．world D．freedom

A．courage B．interest C．knowledge D．power

A．write B．read C．buy D．edit

A．invent B．acquire C．adopt D．destroy

A．step B．life C．chance D．condition

A．promote B．accumulate C．increase D．apply

A．choice B．mistake C．failure D．effort

A．assisted B．loved C．raised D．punished

A．why B．where C．when D．whether

A．greedier B．wiser C．older D．cruder

A．sleepy B．weak C．satisfied D．comfortable

A．carelessly B．secretly C．angrily D．closely

A．realized B．remembered C．reminded D．created

A．fueling B．starting C．beating D．moving

A．learned B．achieved C．undertaken D．doubted

A．reality B．history C．imagination D．record

A．unimportant B．necessary C．unbelievable D．ordinary

A．and B．even C．or D．as

A．what B．which C．that D．how