高一英语同步课程
《完形填空之词语辨析》麻雪玲
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老师传授典型题详细办法
教学生举一反三
一题多解、一题巧解
错题本
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老师针对课堂中的经典例题
为学生推送同类型题，掌握解题方法
原则一、两个句子必须要用连词连接，如果没有连词连接，则需要用非谓语动词
例1. _________ many times, but he still couldn’t understand it.
A. Having been told B. Having told C. He had been told D. Though he had been told
例2._________ many times, he still couldn’t understand it.
A. Having been told B. Having told C. He had been told D. Though he had told
解析：例1中有连词but连接，表明前后都是句子，所以答案为C。
例2中后面是一个句子，而且没有连词，所以前面不是句子，应该用非谓语动词，根据句意此处为被动，所以答案为A。
原则二、不及物动词无-ed形式非谓语动词，及物动词有宾语时用-ing形式，无宾语时用-ed形式
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