时间：2022-07-06 06:16:57
请看今年一个高考题：
（2012重庆，29） Sales director is a position ________ communication ability is just as important as sales skills.
A. which
B. that
C. when
D. where
分析：本题考查定语从句。先行词为position，代入定语从句后为：Communication ability is just as important as sales skills in the position.由此可见先行词与介词in一起作状语，故排除A、B两项；position在本句中表示“模糊化的地点”，故答案为D项。句意：销售总监是一个职位，在这个职位中，交际能力和销售技巧同等重要。
在某些模糊地点先行词后由关系副词where引导的定语从句一直是学生在备考过程中感到比较困惑的地方，现笔者根据多年的教学经验，将该类定语从句简单总结如下，希望对同学们有所帮助。
当先行词是case，degree, situation，point，stage, job, position, activity, age, system, race, conditions, scene, spot, family等，表示某人或某物所处的情况或发展的阶段，并且关系词在定语从句中作地点状语时，一般用关系副词where引导定语从句。
这个用法在人教版必修一、必修五和选修九等课文中也反复出现过。下面是课文中的原句，请同学们好好体会一下。
1. Until today, we have reached a stage where we have almost no rights at all.直到今天，我们还处在几乎什么权利都没有的阶段。（人教版必修一Unit 5 Nelson Mandala- a modern hero P34）
2. We were put into a position in which (where) we had either to accept we were less important or fight the government. 我们被置于这样一个境地：要么被迫接受我们低人一等的现实，要么跟政府作斗争。（人教版必修一Unit 5 Nelson Mandala- a modern hero P34）
3. Well, now there’s a system where the waste is disposed of using the principles of ecology.可现在我们有一种装置，能利用生态学原理来处理掉废弃物。(人教版必须五Unit 3 Life in the future P22 )
4. Every time Ashrita tries to break a record, he reaches a point where he feels he cannot physically do any more. 每次试图破纪录的时候，阿什里塔都会达到一个体力不可逾越的极限点。(人教版选修九Unit 1 Breaking records P3)
很多学生对上面几个例子中stage，position, system, point后面where引导的定语从句感到很难理解。其实，它们都是模糊的表示地点的先行词，其后的定语从句中也都因缺少地点状语而由关系副词where引导。
即时练习 在空格处填入一个恰当的词。
1. I have reached a point in my life I am supposed to make decisions of my own.
2. It’s helpful to put children in a situation
they can see themselves differently.
3. Today, we’ll discuss a number of cases
beginners of English fail to use the language properly.
[以上三题的先行词分别是point, situation, cases，指模糊地点(地步、处境或情形)，在定语从句中作状语，故均由where引导定语从句]
(作者单位：山东省寿光市第一中学)
责任编校 蒋小青