八年级上册Unit2重难点梳理--郭向荣(共11页).docx

精选优质文档-倾情为你奉上八年级上册Unit 2重难点梳理WORDS1. 辨析：hardly hard 频率副词：never, hardly, sometimes, often, usually, always 否定副词：never, seldom, rarely, hardly 否定形容词：few, little, no2. ever 在任何时候；曾经(用于现在完成时) whoever whatever whenever3. once用法 一次 I have been there only once. 一旦 =as soon as/ if Once you finish your homework, you can go with me. 曾经(用于一般过去时) 词组：at once once again once upon a time all at once 拓展：twice 两次；两倍three time