题目内容
16.Because of his special experience,he was chosen to be anassistant (助理) to the president for energy affairs.分析 句意为:由于他特殊的经历,他被选为总统的助理,来应付紧急情况.
解答 答案:assistant.assist为动词,帮助的意思,其名词形式为assistance,assistant表示帮助的人,助理,是可数名词.空格前,有不定冠词an,所以用单数形式.
点评 考查这类题型的时候,要考虑到该词所相关的不同词性,然后根据前后上下文判断需要什么形式的词.
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