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，
文绉绉黎明、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( ) chine people on Sunday morning( ) 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; on B. at; on C. in; in D. in; on
( ) 2.----There is nothing ____tomorrow afternoon, is there? -----No. We can have a game of table tennis.
A. on B. in C. out D. up
( ) 3. A lot of students in our school were born____March, 1981.
A. in B. at C. on D. since
( ) 4. He suddenly returned____ a rainy night.
A. on B. at C. in bearerD. during
( ) 5. My grandfather was born____Oct. 10, 1935.
A. on B. in C. at D. of
视听说4 ( ) 6. The train is starting___five minutes.
A. in B. at C. for D.still
( ) 7. Mike does his exercis ____ ven _____ the evening.
A. on; to B. at; in C. by; of D. at; on
( ) 8. Children wake up very early____the morning of Christmas Day.
A. in compass B. on C. for D. at
( ) 9 ____ a cold winter morning, I met her in the stfeet.
A. In B. On C. At D. For
( ) 10 It happened to be very cold____ the morning of our sports meeting.
A. at B. on C. with D. of
( ) 11. Why did you get up so early ___ this morning.
A. on B. / C. at D. in
( ) 12. He went to Shanghai___ September 3, 1991 and came back___ a cold morning last year.
A. in; on B. on; in C. on; on D. in; ia
( ) 13. Lucy was born____ the night of May 12, 1984. . ...
A. on B. in C. at D. to
( ) 14. Mrs Brown came to China ____ 1996.
A.on B. of C. to, D. in
( ) 15 ___ the morning of November 20, 1915, the workers came to Chicago to show their mourning of Joe Hill.
A. On B. In C. On D. At
( ) 16. Ann moved___Hangzhou___September, 1992.
A. /; in B. to; in C. to; on D, in; in
( ) 17. They started off___an autumn afternoon.
A. during B. at C. in D. on
( raceway ) 18. He often goes ____ school ____ six thirty ____ the morning.
A. for; to; in B. to; at; in C. 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; at D. 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. (亲爱的英文怎么写如：first, cond, 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--cond；3rd--third；4th--fourth；5th--fifth；6th--sixth；7th--venth；8th--eighth；eworld9th--ninth；10th--tenth；11th--eleventh；
12th--twelfth；20th--twentieth；21st--twenty-first；22nd--twenty-cond；29th--twenty-ninth；30th--thirtieth；31st--thirty-first；40th--fortieth；50th--fiftieth；60th--sixtieth；70th--ventieth；80th--eightieth；
energy star90th--ninetieth；100th--hundredth
二、巩固练习：①写出下列词的序数词形式。
1. one 2.two 3. six 4.five 5. nine 6.twelve 7.eight 来源英文 8.twenty-one
②写出下列单词的基数词形式。1.third 2.fourth 3.tenth 4.twentieth 5.nineteenth 6.thirty-first _
