第二节 单句改错（共5小题：每小题1分，满分5分）
【小题1】Police have found which appears to be the lost ancient statue.
【小题2】A serious study of physics is impossible beyond some knowledge of maths.
【小题3】The Smiths are praised by the way they bring up their children.
【小题4】If being asked to look after luggage for someone else, inform the police at once.
【小题5】He wrote a letter that he explained what had happened in the accident.which—what
网友回答
(答案→)which—what
解析：
【小题1】which—what 连词的用法。此处为宾语从句，which/what均可引导宾语从句，且所做句子成份相同在此做主语，但which有选择范围，而what没有，句意为：警察找到了像是被丢失的古代雕塑的东西。
【小题2】beyond—without 介词词义的考查。beyond意思是超出---的范围；without意思是没有。句意为：没有一些数学知识进行物理研究是不可能的。
【小题3】by—for介词的考查。by意为经----，由---；而for表因为。句意为：史密斯夫妇因为他们培养孩子的方式而受到表扬。
【小题4】去掉being 省略的用法。If/unless/once/when等状语从句，可以省去主语和be动词，因此此处要略去being.全句应为：If you are asked to look after luggage for someone else, inform the police at once.
【小题5】that—where 关系词的考查。定语从句关系词的用法，先行词为letter, 而定语从句不缺少成份，故应用关系副词，指在信中，他解释了在事故中发生的事情。所以应改为where.
考点:考查句子的纠错。