题目内容
20．Today there are two new students in our class I don't know____of them．（ ）| A． | both | B． | either | C． | neither | D． | nor |
分析 今天我们班有两个新学生，我一个也不认识．
解答 答案：A．both的意思是"两者都"；either的意思是"两者之中的任何一个"；neither的意思是"两者都不"；nor的意思是"三者或三者以上都不"．根据"there are two new students"以及"I don't know____of them"可知这两个新同学，我都不认识，所以要用both．如果用neither的话，是双重否定就成了肯定了，就成了认识他们了，所以要用both．
点评 首先要掌握both，either，neither，nor这四个不定代词的意思以及用法，任何结合具体的语句，就可以确定正确答案．
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