阅读理解
The mystery had now reached its climax: the man had undoubtedly been murdered, and it was absolutely certain no one could conceivably have done it. It was therefore time to call in the great detective, who gave one searching glance at the corpse, then produced a microscope.
"Aha!" he exclaimed as he picked a hair off the lapel of the dead man''s coat." The mystery is a mystery no longer. We have only to find the man who lost this hair, and the criminal will be in our hand." The inexorable chain of logic was complete, and the detective embarked on his search.
For four days and four nights he moved unobserved through the streets of New York, scanning closely every face he passed, looking for a man who had lost a hair. On the fifth day he discovered a man disguised as a tourist, his head enveloped in a cap reaching below his ears. The man was about to board the Gloritania, and the detective lost no time in following him on board.
"Arrest him!" shouted the detective, and then, drawing himself to his full height, he brandished aloft the hair." This is his," said the great detective," and it proves his guilt".
"Remove his hat," ordered the ship'' s captain sternly.
It was discovered that the man was entirely bald.
"Aha!" exclaimed the great detective without a moment'' s hesitation." He has committed not one murder, but about one million !"
单选题
The detective declared the mystery solved before he______.
【正确答案】
C
【答案解析】此题为细节题。按照文中侦探的所为，可将其动作顺序排列如下：gave one glance→ produced a micro- scope→ picked a hair。这些动作都发生在“declare”之前，因而此三项可排除。此外，侦探在宣布此案已不再是不解之谜之后，才“embarked on his search(开始寻找)”也佐证了C项为正确选项。
单选题
The writer implies that______.
【正确答案】
B
【答案解析】此题为推论题。文中没有明确交待“Gloritania”离开何地，驶向何方，但从第三段开头的“he moved un- observed through the streets of New York”中可以得知此事发生在纽约，而从本段的最后一句“following him on board(随他上船)”中可推知此船要离开，因此可合理推出B项为正确答案。A项文中有明确交待：C项有悖事实(船长命令疑犯摘下帽子说明他是合作的)；D项文中未提及，实乃无中生有。