文档介绍：八年级上册知识点清理
Unit 1 Where did you go on vacation？
1，一般过去时
根本构造：主语+动词过去式+其他;
否认形式：①was / were + not； ②在行为动词前加didn't,同时复ty of
20,in the past在过去
21,enjoy/ like doing
22，感慨句：How+adj+主谓！
How+adj+a/an +n单+主谓！
What+ a/an +adj+ n单+主谓!
What+ adj+ n复/ 不可数+主谓！
23，more than=over超过 less than 少于 more or less或多或少
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24，wait for等待
25，too many“太多”修饰可数名词复数
too much“太多"修饰不可数名词
much too“实在太"修饰形容词或副词
26，because+从句 because of +n/ V-ing /代词
27,enough作adj修饰n, enough time enough money
have enough…to do sth eg：I have enough time to finish the work.（精品文档请下载）
enough作adv修饰adj/ adv old enough fast enough（精品文档请下载）
…enough for sb to do sth eg:The job is easy enough for me to do.（精品文档请下载）
not…enough to do The book isn't easy enough for me to read。（精品文档请下载）
too…to… The book is too difficult for me to read。（精品文档请下载）
so…that… The book is so difficult that I can’t read。（精品文档请下载）
28，the next day第二天
29，remember/ forget+to do要做
+doing做过
30，Stop sb from doing sth阻止
Stop to do 停下来去做其他事
Stop doing 停顿正在做的事
31，another two hours=two more hours
32，at the top of在…顶端，名列…之前 强调点
on the top of在…上面 强调面
33，find out查明，弄清 find找到（结果） look for寻找（过程）
34，go on with/ doing sth继续原来的事
go on to do sth继续做别的事
35，so +adj +that +结果状语从句“如此……以致……"
eg:I was so busy that I didn't go to sleep for 3 days。（精品文档请下载）
so that 引导目的状语从句，以便，为了（in order to）
eg：they got up early so that they could catch the early bus.（精品文档请下载）
so +adj +(a/ an+n单数)that It is so important a meeting that I can’t miss it.（精品文档请下载）
such+ a/ an+ adj + n单数+that It is such an important meeting that I can't miss it。（精品文档请下载）
such+ adj+n复数/不可数+that
Unit 2 How often do you exercise？
1，How 如何（方式）
how long 多长（时间）答语常用“（For/ about +）时间段”
how far多远（间隔 ）答语常用“（It’s +）数词 +miles/ meters/ kilometers”（精品文档请下载）
how often多久一次（频率）答语常用“Always/ often/ ever