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）：
th( )on Sunday morning( on Sunday（）on May 4 ) 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
1
______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.
inthespring是什么意思A. on
B. at
C. in
D. during
(    ) 5. My grandfather was born____Oct. 10, 1935.
A. on
B. in
C. at
D. of
(    ) 6. The train is starting___five minutes.
A. in
B. at
C. for
D.still
(    ) 7. Mike does his exercises ____ seven _____ 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
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.
<
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
(    ) 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
2
(    ) 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. one
2.two
3. six
4.five
5.
nine      6.twelve        7.eight        8.twenty-one
3
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    _
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. three
B. first
C. the second
(  )2. What date is it today? It's        of April.
A.  twelfth
B. the 12th
C. 12th
(  )3. There are  days in a week.
A. the seven
B. seventh
C. the seventh
D. seven
(  )4.Sunday is the        day of a week.
A. one
B. first
C. second
(  )5. Twenty-eight minus(减)six is    .
A. the twenty- second
B. twenty-two
C. twenty- second
(  )6. Four plus(加)      is twelve.      A. seven    B. eight      C. nine 4

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