雅思语法五讲.ppt

Workers will have finished all the projects for the Olympic by the end of this month.We will have washed your suit by next Monday.We will wash your suit next Monday.
状语从句
I. 时间状语从句:
i. 时态:英文的动词在表示不同时间发生的动作时要用不同的形态,这项语法即为时态;
ii. 常见时态:
时间
一般时
进行时
完成时
完成进行时
将来
一般将来时
将来进行时
将来完成时
将来完成进行时
will/shall do; am/is/are doing/going to do;
will be doing
will have done
will have been doing
过去
一般过去时
过去进行时
过去完成时
过去完成进行时
did, was, were
was/were doing
had done
had been doning
现在
一般现在时
现在进行时
现在完成时
现在完成进行时
do/does; am, is, are
am/is/are doing
have/has done
have been doing
状语从句
iii. 时间状语从句常见引导词:
a. when Vs. while
The headmaster returned to his office while/when we were waiting.
I was walking in the darkness, when I saw a face just in front of me.
The last man in the world was sitting in his room when there came a knock at the door.
I had nearly reached the town when the young man said, very slowly, “do you speak English?”.
状语从句
iii. 时间状语从句常见引导词:
a. when Vs. while
I was reading while others were watching films or drinking coffee.
You were playing while others were studying.
While we knew that the school wouldn’t allow it, we went out drinking at midnight.
While you keep them in the fridge, the apples will remain fresh for a whole week.
I won’t say sorry while he doesn’t say first.
状语从句
iii. 时间状语从句常见引导词:
b. as
As cells die off, human beings get older and older.
puters relieve more and more hard works for us, we, human beings are ing more and more dependent on them.
He pulled off the table cloth as he stood up and sent all the dishes smashed on the floor.
c. as soon as, the moment, the second, the instant, the minute;
The moment he saw me, he broke out laughing.
状语从句
iii. 时间状语从句常见引导词:
d. before, until, after, no sooner… than…, hardly… when …
The train had left before I arrived at the station.
I arrived at the station after the train had left.
Nearly a week had passed, before the girl was able to explain what had happened to her