题目内容
10．The expo will be held in Shanghai，_____a lot of advanced technology will be shown for the first time．（ ）| A． | where | B． | which | C． | when | D． | from which |
分析 世博会将会在上海举办，在这次世博会上有很多先进的技术将首次亮相．
解答 答案：A
题干中a lot of advanced technology will be shown for the first time修饰expo，是一个非限制性定语从句；从句结构完整，要用关系副词；先行词expo表示抽象地点，要用where来引导．故选A．
点评 定语从句是用来修饰名词的形容词性从句，相当于一个形容词．连接定语从句的引导词分为关系代词和关系副词，关系代词在从句中要作主语或宾语；关系副词在从句中作状语．这也是选择关系词的一个判断方法．
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