文档介绍：关于初中英语语法表示时间的介词
第一页，本课件共有9页
We use:
at for a PRECISE TIME
I have a meeting at 9am.
The shop closes at midnight.
Jane went home at lunchtime.
at 3 o'clock
at
at sunrise
at bedtime
at dinnertime
at noon
at the moment
at sunset
第二页，本课件共有9页
We use:
in for MONTHS, YEARS, CENTURIES and LONG PERIODS.
In England, it often snows in December.
Do you think we will go to Jupiter in the future?
There should be a lot of progress in the next century.
in the Summer
in May
in the Ice Age
in the past/future
in the 1990s
in the next century
in 1990
in Summer
第三页，本课件共有9页
We use:
on for DAYS and DATES
Do you work on Mondays?
Her birthday is on 20 November.
Where will you be on New Year's Day?
on Sunday
on Sunday
on Tuesdays
on Tuesdays
on 6 March
on 6 March
on 25 Dec. 2010
on 25 Dec. 2010
第四页，本课件共有9页
Notice the use of the preposition of time at in the following standard expressions:
Expression
Example
at night
The stars shine at night.
at the weekend*
I don't usually work at the weekend.
at Christmas*/Easter
I stay with my family at Christmas.
at the same time
We finished the test at the same time.
at present
He's not home at present. Try later.
第五页，本课件共有9页
Prepositions of time
第六页，本课件共有9页
Notice the u