Since, we are told, 80 to 90 percent of all instruction in the typical university is by the lecture method, we should give close

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问题     Since, we are told, 80 to 90 percent of all instruction in the typical university is by the lecture method, we should give close attention【C1】______this form of education. There is, I think,【C2】______truth in Patricia Nelson Limerick’s observation that "【C3】______is an unnatural act, an act for which God did not design humans. It is perfectly all right, now and【C4】______, for a human to be possessed by the urge to speak, and to speak【C5】______others remain silent. But to do this 【C6】______, one hour and 15 minutes at a time? I do not believe that this is what the Creator【C7】______humans to do. "
    The strange, almost incomprehensible fact is that many professors, just as they feel【C8】______to write dully, believe that they【C9】______lecture dully. To show enthusiasm is to risk【C10】______unscientific, unobjective; it is to appeal【C11】______the students’ emotions rather than their【C12】______. Thus the ideal lecture is one filled with facts and read with an【C13】______tone.
    The cult(推崇)of lecturing dully, like the cult of writing dully, goes back some years. Edward Shils, recalls the professors he【C14】______at the University of Pennsylvania in his youth. They seemed " a priesthood,【C15】______uneven in their merits but【C16】______in their bearing. Some read from old lecture notes and then haltingly explained the thumb-worn last lines. Others lectured from cards that had【C17】______for years, to judge by the worn edges. The teachers began on time, ended on time, and left the room【C18】______saying a word more to their students, very【C19】______being detained(留住)by questioners. No questions were【C20】______in class, and there were no office hours. "
【C17】

选项 A、used
B、served
C、existed
D、remained

答案B

解析 动词辨义题。此处在描述这些牧师一般的教授们是如何以相同的方式上课的。有的教授读着旧讲稿,吞吞吐吐地解释着都已被捻破了的句子;而有的教授上课则靠用了多年的卡片。used为及物动词,放在此处需用被动语态,故排除;served“服务,服役,使用”,既可用作及物又可用作不及物动词,符合句意;existed“存在”,remained“保持不变”,均不能体现卡片的作用和教授对于卡片的依赖,因而无法体现枯燥教学这一主题,故排除。
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