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
错题追踪复习
听课中的错题能自动加入错题本
课后可方便复习及导出错题本
网络答疑
课程互动性强
在线互动问答
数理化英快速答疑
课后练习
经典例题课后练习
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
Why 指原因，在定语从句中作原因状语。先行词为reason 时，可用for which指代;当关系词在从句中作主语或宾语时，则用which或that 引导。如：
1. The reason why / for which / (that) he didn't attend the meeting was that he was ill.(作状语)
2. I don't believe the reason (that/which) he gave me. (作宾语)
Have you asked him the reason that may explain his success? (作主语)
Ex.) He was late .That's because he got up late.
.He got up late. That's why he was late.(表语从句)
(the reason) why/for which he was late. (定语从句)
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