On May 23,1989, Stefania Follini came out from a cave at Carlsbad , New Mexico．She hadn’t seen the sun for eighteen and a half weeks ．Stefania was in a research program, and the scientists in the program were studying body rhythms （节奏）。In this experiment Stefania had spent 130 days in a cave ,30 feet in depth．
During her time in the cave, Stefania had been pletely alone except for two white mice．Her living place had been very fortable ,but there had been nothing to feel her the time ．She’d had no clock or watches , no television or radio．There had been no natural light and the temperature had always been kept at 21℃
【小题1】Stefania stayed in the cave for a long time because ．A．she was asked to do research on miceB．she wanted to experience lonelinessC．she was the subject of a studyD．she needed to record her life【小题2】What is a cause for the change of Stefania’s body clock?A．Eating fewer hours B．Having more hours of sleepC．Lacking physical exercise．D．Getting no natural light．【小题3】Where does the text probably e from?A．A novel．B．A news story．C．A pet magazine ．D．A travel guide．C
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(答案→)C
解析：
【小题1】C细节理解题。根据第一段中Stefania was in a research program和整段的意思，可以排除A、B、D项。
【小题2】D细节理解题。根据第二段中 She hadn't kept to a 24-hour day. She had stayed awake for 20-25 hours and then had slept for 10 hours.可知答案。
【小题3】B推理判断题。从全文的内容来看，本文主要报道了一个实验及实验得出的结果，所以由此判断本文可能来自于新闻报道，A项小说不可能。因为文章没有小说的特点；C项不正确，本文没有涉及宠物问题；D项不正确，因为本文也没涉及旅游的问题。