文档介绍：新概念第二册语法总结
1. 被动语态（二）
will/must/can/would/could/have to be done
have/has been done
must have been done Time, Reader’s Digest
7. 物质名词一般意义 Water boils at 100 degrees. We can not live without air.
8.
抽象名词 Life is short. Art is difficult to appreciate.
to do 用法
Used to do 表示过去常常做某事现在不做了
I used to get up at seven o’clock.
Experience, save, very/too
, 比较状语从句（见复合句-比较状语从句）
A/one的区别
Passed/past, next/other
一般现在时: is/am/are done
一般过去时: was/were done
现在进行时: is/am/are being done
现在完成时: have/has been done
过去完成时: had been done
一般将来时: will be done
过去将来时: would be done
过去进行时: was/were being done
情态动词: can be done, must be done, could be done, may be done, might be done,
情态动词完成式: can have been done,must have been done,could have been done, may have been done，might have been done,
Call at(拜访某地), call out at(大声喊), call on(拜访某人), call sb up(给某人打电话), call off(取消)
+谓语(感官动词)+doing表示正在发生的事情,+do 表示已经完成的动作.
So/such
So+adj. /adv.
such+n.
固定用法：so many
going to do
will/be going to do一般情况下可以相互替换,但是要表示说话人决定做某事或者表示建议,请求, 肯定或不肯定等含义时只能用will.
Watch/look at/follow, solid/firm/stable
Hold/look, look forward to(期望), look out(当心), look up (查询,), look sb. up(拜访某人)
if /though+虚拟语气, 过去完成时总结
as if /though 常在描述行为的动词后面使用, 如act/look/feel/appear/smell/sound, 后面要用虚拟语气
He looks as if he were a king.
Her skin feels as if it were silk.
The song sounds as if it were a sad story.
He looked as if he had never lived in England.
No sooner…than, hardly…when, country/countryside, continuously, continually,
No sooner…than 一…就… 与过去完成时连用
I had no sooner come into the room than it began to rain.
The bell had no sooner rung than the game began.
如果no sooner 放在句首, 主句的主谓结构倒装
No sooner had I come into the room than it began to rain.
No sooner had the bell rung than it began to rain.
Hardly…when 几乎没来得及…就… 与过去完成时连用
He