时间介词(at, in ,on) 的用法与练习【时间介词记法口诀】:at用在时刻前，亦与正午、午夜连，黎明、终止和开端，at与之紧接着相伴。

周月季年长时间，in须放在其前面，泛指一晌和傍晚，也要放在in后边。

on指特定某一天，日期、星期和节日前某天上下和夜晚，依然要在on后站。

今明昨天前后天，上下这那每之前，at、in、on都不用，此乃习惯记心间。

1. at+night/noon/dawn/daybreak/点钟（所指的时间小于天）：at night( ) at noon( ) at down( )at daybreak( ) at7:30( ) at 7o’clock ( )2. in+年/月/季节/泛指某一天的上morning，下afternoon，晚evening（所指时间大于天）：in 2004（）in March（）in spring（）in the morning（）in the evening （）in the afternoon（）扩展：在一段时间之后。

一般情况下，用于将来时，意为“在……以后”。

如：He will come in two hours.3. on+星期/日期/节日/特指某一天的上，下，晚（所指时间是天）：on Sunday（）on May 4th( )on Sundaymorning( ) on Christmas Day( )/on Teachers’ Day( )on the morning of Sunday( ) on a cold winter morning( )扩展：准时，按时。

如：on time 按时，in time 准时练习一、用介词in on at填空______1999 _______9:45 _______the evening _______Monday evening ________June ________the afternoon_______noon ______night ______Children’s Day ______Teachers’Day _______8 o’clock _______Summer_______May ______May,1999 ________May15th,1999 二、单选( ) 1. Children get gifts ____ Christmas(圣诞节) and ____ their birthdays.A. on; onB. at; onC. in; inD. in; on( ) 2.----There is nothing ____tomorrow afternoon, is there? -----No. We can have a game of table tennis.A. onB. inC. outD. up( ) 3. A lot of students in our school were born____March, 1981.A. inB. atC. onD. since( ) 4. He suddenly returned____ a rainy night.A. onB. atC. inD. during( ) 5. My grandfather was born____Oct. 10, 1935.A. onB. inC. atD. of( ) 6. The train is starting___five minutes.A. inB. atC. forD.still( ) 7. Mike does his exercises ____ seven _____ the evening.A. on; toB. at; inC. by; ofD. at; on( ) 8. Children wake up very early____the morning of Christmas Day.A. inB. onC. forD. at( ) 9 ____ a cold winter morning, I met her in the stfeet.A. InB. OnC. AtD. For( ) 10 It happened to be very cold____ the morning of our sports meeting.A. atB. onC. withD. of( ) 11. Why did you get up so early ___ this morning.A. onB. /C. atD. in( ) 12. He went to Shanghai___ September 3, 1991 and came back___ a cold morning last year.A. in; onB. on; inC. on; onD. in; ia( ) 13. Lucy was born____ the night of May 12, 1984. . ...A. onB. inC. atD. to( ) 14. Mrs Brown came to China ____ 1996.A.onB. ofC. to,D. in( ) 15 ___ the morning of November 20, 1915, the workers came to Chicago to show their mourning of Joe Hill.A. OnB. InC. OnD. At( ) 16. Ann moved___Hangzhou___September, 1992.A. /; inB. to; inC. to; on D, in; in( ) 17. They started off___an autumn afternoon.A. duringB. atC. inD. on( ) 18. He often goes ____ school ____ six thirty ____ the morning.A. for; to; inB. to; at; inC. to; for; at D, for; at; to ( ) 19. He arrived ___ Shanghai ___ 9: 30 ___ March 5. A. at; in; at B. to; on; at C. in; on; atD. in; at; on( ) 20.The English teacher told me to get there____ half past ten.A: in B. at C. on D. of基数词与序数词专项练习一、知识归纳①基数词变序数词的规律：口诀：基变序，有规律，结尾加上th。

一、二、三、特殊记，词尾字母t,d,d. (如：first, second, third)。

八减t,九去e,（如：eighth, ninth）, f来把ve替。

（如：twelfth）.单词ty作结尾，ty变成tie(如：twentieth).若是碰到几十几，只变个位就可以。

（如：twenty-first）②1-100的序数词：1st--first；2nd--second；3rd--third；4th--fourth；5th--fifth；6th--sixth；7th--seventh；8th--eighth；9th--ninth；10th--tenth；11th--eleventh；12th--twelfth；20th--twentieth；21st--twenty-first；22nd--twenty-second；29th--twenty-ninth；30th--thirtieth；31st--thirty-first；40th--fortieth；50th--fiftieth；60th--sixtieth；70th--seventieth；80th--eightieth；90th--ninetieth；100th--hundredth二、巩固练习：①写出下列词的序数词形式。

1. one2.two3. six4.five5.nine 6.twelve 7.eight 8.twenty-one②写出下列单词的基数词形式。

1.third2.fourth3.tenth4.twentieth5.nineteenth6.thirty-first _③根据句子意思填空。

1. Children’s Day（儿童节）is on the of June（六月）.2. There are months（月）in a year(年).3. Teacher’s Day(教师节) is on the of September（九月）.4. Three plus(加) six is .④选择填空。

( )1. My cousin’s birthday in on the of October.A. threeB. firstC. the second( )2. What date is it today? It’s of April.A. twelfthB. the 12thC. 12th( )3. There are days in a week.A. the sevenB. seventhC. the seventhD. seven( )4.Sunday is the day of a week.A. oneB. firstC. second( )5. Twenty-eight minus(减)six is .A. the twenty- secondB. twenty-twoC. twenty- second ( )6. Four plus(加) is twelve. A. seven B. eight C. nine。