一、表示时间的介词：1、at：用于表示时刻，时间的某一点atdawn在黎明时候 atnight 在夜间atnoon在中午atmidnight在午夜atsix o'clock在 6 点钟at7：30(seventhirty) 在 7 点半 athalfpasteleven在 11 点半sevento five5 点差 7 分(半小时以上) fiveminutespasttwo2 点过 5 分a quartero two1 点 45 分2、on:用于星期、某天、某一天的上午、下午、傍晚 指具体的某一天时，也一律用 on onTuesday在星期二onMay8th ,2009onSundaymorning在星期天早上 在 2009年 5 月 8 号3、in:（1）用于表示：月，季节，年，泛指上午，下午，晚上；in 1986in Aprilin July l983在 1986 年在四月1983年 7 月in spring在春季 in aut mn 在秋季in summer在夏季 in winter 在冬季（2）与一般将来时连用，表示“在……之后”I amgoingto finishmyhomework twodays. 我打算两天后完成我的作业。
4、before:在... 5、after:在...之前之后beforebreakfastafterschool6、from…to …: 从……到……fromMondayto Friday7、for：达…之久（表示经过了多少时间）I cleanedmybedroomfor aboutthirtyminutes. 8、during：表示持续一段时间duringthewinterholiday，duringthewar随堂练习题一、选择填空：1. Hecameto school_______ 8:30thismorning.A. for B. on C. at D. in 2. This storyhappened_______ themorningofOctober19th .A. of B. on C. in D. at3. Johnalwaysdoes hishomework______ 9:00p.m.A. at B. on C. to D. in4. Hewasborn_______ March8th, 1988.A. in B. on C. at D. from5. Chinabecamea WTOmember______ December11th, 2001.A. of B. on C. at D. in6. Mondaycomes________ Sunday.A. after B. before C. behind D. from7. Lily oftengetsup_______8:00 ____ Sundays.A. on,in B. in, on C. at,on D. in, at8. Thestoryhappened_______1945.A. on B. at C. in D. with9. Howmanylessonsdoyouhave______ themorning?A. on B. at C. in D. before10. Let’s go for a walk ________ supper.A. for B. at C. after D. in 11.I canstudywell________night.A. for B. at C. after D. in12.Thestudentscanhavea goodrest________ thesummer oliday.A. to B. at C. during D. before 13.Theyworkhard______ morning____ evening.A. on,on B. at,at C. in, and D. from…to14.Thesportsmeetwill begin____ 9:00_____ Mondaymorning.A. on,in B. at,on C. in, on D. in, at 二、阅读短文，填入适当的介词。
I get up______6:30 _____the morning. I have breakfast________7:00, and I go to school_______ breakfast.We have fourclasses_____ themorning,andwehavetwoclasses______theafternoon. I oftenplayping-pong_____ school.三、用适当的介词填空1. We gohome______ halfpastfive_____ theevening.2. Doyouoftenplaycomputergames_______ night? 3. Hehaslivedin Beijing_______ tenyears.4. I wasborn__________ 1998.5. We havenoclasses__________ Sunday.6. Teachers’ Day is ___________ September 10th.7. They have a party _________ Children’s Day.8. Therearesevendays_________ a week.9. Todayis thefirstdayofschool______ theholiday.10.We oftenvisitrelatives（亲戚） andfriends_________ theSpring Festival.四、在文中需要的地方填入适当的介词。
I go to school________ Monday__________ Friday.I get up__________ 7:00________ every morning.I go to school__________halfpastseven.We havefourclasses_______ themorning.I havelunch_______ school._______ theafternoonwehavetwoclasses.I oftenplaybasketball_______ school.Therewasa basketballmatch_______ Class 1 andClass2 _______ yesterday.。