关系词误用
名词性从句和定语从句中都需要一个用来引导从句的关系词,改错题中经常会出现这种关系词的误用现象。常见比较容易混淆的关系词有:what和that,that和which, as和which, whose和which或who,who和whom等。
要识别这类错误,考生应注意以下几点:
1.熟悉引导各种从句常用的关系词及其用法。引导名词性从句的关系词主要有:that, whether, if, who(ever),whom(ever), whose, what(ever),which(ever), when, where, why, how;引导定语从句的关系词主要有: that, which,who, whom, whose, when, where, why。
2.注意容易混淆的几对关系词的区别。
【例】(05-1-S7)
Instead, patients can take that is called a multi-drug therapy. S7. __________
【解析】分析句子结构可知,take后面接的是宾语从句,that引导宾语从句时,只起引导作用,不充当成份,而此处需要一个能在从句中充当主语的关系词,故应将that改为what。