In\ on\ at (time)
at 用在具体某一时刻eg at 11:00 at 4:30
在节假日的全部日子里at Christmas
习惯用法at noon at weekends\ at the weekend at night
at breakfast\lunch\supper
on 具体到某一天;某一天的早晨,中午或晚上on May the first on Sunday morning 对具体某一天的早晨,中午,晚上进行详细的描述on a sunny morning on a windy night 节日的当天;星期on Women’s Day on Monday
In 用在年;月;季节in spring in 2012 in August
后面+一段时间表示将来时in two days
习惯用法in the morning\in the afternoon\in the evening
“\”以this, that, last, next, some, every, one, any,all开始的时间副词之前的at\on\in 省略在today, tomorrow, yesterday, the day after tomorrow, tomorrow morning,yesterday afternoon,the day before yesterday 之前的介词必须省略
Practice
___ summer ____ 2012 ____ supper ___ 4:00 ___ June the first
___yesterday morning ____ New Year’s Day ___ Women’s Day
___ the morning ____ the morning of July the first ____ 2014
___ tomorrow morning ____ midnight
1、—What are you doing ____ Sunday? And what is your wife doing ___ the weekend?
2、He’ll see you ____ Monday、And he‘ll see your brother ____next Monday、
3、They often go out ___ the evenings、But they don’t go out ____ Sunday evenings、
4、Do you work ____ Fridays? Does she work _____ every Friday?
5、They usually have a long holiday ___ summer、But their son can only have a short holiday ___ Christmas、
6、Paul got married ___ 2010, He got married ___ 9 o’clock ___ 19 May 2010、
His brother got married ___ May, 2011、His sister is getting married ___ this year、
1、—When will Mr Black come to Beijing?
---_______ September 5
A、on
B、to
C、at
D、in
2、The twins were born ____ a Friday evening、
A、on
B、of
C、at
D、in
3、It’s the best time to plant ____ spring、
A、on
B、in
C、at
D、\
4、____ the age of twelve, Edison began selling newspaper on train、
A、On
B、At
C、In
D、By
5、She has been an English teacher ____ 2000、
A、for
B、since
C、in
D、on
6、I have studied English _____ 2003、
A、since
B、for
C、from
D、in