第6题: [填空题]S10 参考答案:Using a tape recorder helps you concentrate on what your subject is saying．Main Points：The use of a tape recorder is very help for you to focus on your subject．
第20题: [单项选择]Although ordinarily skeptical about the purity of Robinson's motives, in this instance Jenkins did not consider Robinson's generosity to be ______ consideration of personal gain. A. lacking in B. contrary to C. alloyed with D. mitigated by 参考答案:C 答案解析:(alloyed with搀杂着)。句意为：尽管詹金斯通常怀疑鲁滨逊动机的纯洁性，但是，在这个事例中，他并不认为鲁滨逊的慷慨搀杂着个人的私利。A．lacking in缺乏； B．contrary to
