19．People were puzzled _______ they read the book．（　�。�
A．the first timeB．at the first time
C．for the first timeD．at first

分析 人們一讀這本書就感到困惑．

解答 答案：A
根據(jù)句式可知，空格處需要用一個(gè)具有連詞功能的詞或短語．"the first time"意為"第一次"可以充當(dāng)連詞來使用．類似的還有"the second time，the moment，the minute"等．"for the first time""at first"均為介詞短語．

點(diǎn)評(píng) 考查時(shí)間狀語從句．考生需對(duì)句子結(jié)構(gòu)了解，并掌握一些能具有連詞功能的短語．

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