小升初考试中In和on的区别
In:
1,在月份，年份，季节前面用in.
In May 在五月份in 1990 在1990年in summer 在夏天
2.在泛指的早上，中午，晚上。

In the moring 在早上
3.后面加某种语言。

Can you speak it in English? 你能用英语说他吗？
4.在-----里面。

The pen is in the box.
5.加颜色，表示穿某种颜色的衣服。

The boy in blue. 穿蓝色衣服的男孩子。

On:
1.表示长在树上用on.不是长在树上用in.
The apple is on the tree.
2.在“具体某一天”或者在“（具体某一天）的早上，中午，晚上”
On May 10th,1990
On a summer morning
3.在”星期几“或者”在星期几的早上，中午，晚上“
On Monday 在星期一
On Friday afternoon 在星期五晚上
At:
at后常接几点几分，天明，中午，日出，日落，开始等。

如：
at five o’clock （五点），at dawn （黎明），at daybreak （天亮），at sunrise （日出），at noon （中午），at sunset （日落），at midnight （半夜），at the beginning of the month（月初），at that time （那时），at that moment （那会儿），at this time of day （在一天的这个时候）。

练习：
( ) 1. Children get gifts ____ Christmas and ____ their birthdays.
A. on; on
B. at; on
C. in; in
D. in; on
( ) 2.----There is nothing ____tomorrow afternoon, is there? -----No. W e 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
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. She 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. Tom 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
( ) 20.The English teacher told me to get there____ half past ten.
A: in B. at C. on D. of
答案：B A A A A A B B B B B C A D B A D B D B。