20．______ I toured Lushan Mountain，I was deeply impressed with its beautiful scenery．（　　）
A．The first timeB．For the first time
C．At firstD．It was the first time

分析 第一次去廬山旅行的時候，我被它的美景深深的打動了．

解答 答案：A．
根據(jù)句式分析可知"I toured Lushan Mountain"是主句的時間狀語從句，而四個選項中，只有 the first time 能引導(dǎo)時間狀語從句表示"第一次做某事的時候"，而其他選項中B只做時間狀語，不能引導(dǎo)句子，C表示"首先"，用于列舉；D做主句，后面用that引導(dǎo)的句子，表示"是某人第一次做某事"，事業(yè)答案是A．

點評 考查時間狀語從句．英語中一些表示時間的名詞短語或副詞都可以充當(dāng)引導(dǎo)詞，來引導(dǎo)時間狀語，例如本句中的the first time，又如the minute；imediately等等．
He put away his toys the minute his father came in．他爸爸一回來他就收起來玩具．

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