1、 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 nightat breakfastlunchsupperon 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 Womens Day on MondayIn 用在年；月；季节
2、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 morningin the afternoonin the evening“” 以 this, that, last, next, some, every, one, any,all 开始的时间副词之前的 atonin 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
3、略Practice_ summer _ 2012 _ supper _ 4:00 _ June the first _yesterday morning _ New Years Day _ Womens Day_ the morning _ the morning of July the first _ 2014_ tomorrow morning _ midnight1.What are you doing _ Sunday? And what is your wife doing _ the weekend?2. Hell see you _ Monday. And hell see yo
4、ur brother _next Monday.3. They often go out _ the evenings. But they dont 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
5、_ 9 oclock _ 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. in2. The twins were born _ a Friday evening.A. on B. of C. at D. in3. Its 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.By5. She has been an English teacher _ 2000.A. for B. since C. in D.on6.I have studied English _ 2003.A. since B. for C. from D.in
