时间介词
一、知识回顾
介词为虚词，不能单独充当句子成分，必须同名词、代词、短语、句子构成介词短语，才能充当句子成分。

介词短语在句中常作表语、定语、状语和补足语。

（一）表示时间的介词：
1．at, on, in
(1) at表示具体点钟或具体年龄
at 5:30在5:30at sunrise 日出时at lunch 午饭时
at noon正午时at night 夜间
{
I get up at 6:00 every day. 我每天6:00起床。

表示“在……岁”时用at the age of…。

如：at the age of five 在五岁时
(2) on表示“在具体某一天或某天的上、下午”。

如：
on Monday在星期一on April 1st在四月一日
I heard a shot on the morning of March 18.三月十八日早晨我听到一声枪响。

泛指上、下午、晚上、夜间时用in the morning/afternoon/evening, at night；但若指具体某一天的上述时段时，则一律用on。

如：on the afternoon of May 23 在五月二十三日下午。

(3) in表示“在某月、季节、年、世纪”以及泛指的上、下午、晚上。

in September在九月in winter在冬季
in 1999 在1999年in the 20th century在20世纪
in the morning/afternoon/evening 在上午/下午/晚上
2．for, during, through（时间的期间）
(1) for表示“一段时间”，后接与数词连用的时间名词。

多与完成时连用。

I’ve been a soldier for 5 years.我入伍已5年了。

She has been ill for several days. 她已经病了几天了。

】
表示“持续一段时间”时，for后面必须跟“数字+时间名词”，而during后决不可接数字。

(2) during表示“在……期间”
He visited many nice places during his stay here.在他逗留期间他参观了许多美丽的地方。

What did you do during the summer vacation 你在暑假做了什么
(3) through表示“一直……，自始至终”
They worked hard through the winter.整个冬天他们都在努力工作。

She treated me like her brother through these years. 这些年来她始终把我当哥哥对待。

\
3．from, since（时间的起点）
(1)from 作“从……”解，多用于“from…to/till…”中。

You can come anytime from Monday to Friday. 周一至周五你什么时间来都行。

The exam will start from 9:00am. 考试将从上午九点开始。

①from“从……（开始）”未必持续到现在，如：
from 1995 to 1998.从1995年到1998年。

而since是指“自从……以来一直持续到现在”
②since一般只与现在完成时连用，而from不受此限。

—
(2) since表示“自从……以来（直到现在）”
He has been away from home since 1973.他自从1973年就离开了家乡。

We have known each other since ten years ago.我们十年前就认识了。

for与since表示一段时间，但for与时间段连用，而since与时间点连用。

如for two hours（持续）两小时；since last week自从上周直到现在
4．before, after（时间的前后）
(1) before指“在……之前”
Please come before ten o’clock.请10点以前来。

~
The meeting will end after 3:00 .会议将在下午三点后结束。

表示“在……以前”时，before与by基本可通用。

但by还有“截至……为止”之意（2）after表示“在……之后”，是before的反义词。

We’ll hold a party after dinner.晚餐后我们将举办晚会。

He got a cancer and died after a year.他患了癌症，一年后去世了。

I’ll phone you after I arrive.到达后我给你打电话。

（after作连词）
二、习题练习
*
（1）填空
was born _________ Children’s Day.
was born _________ the morning of September 1st,1993.
was born ______ June, 1994.
4.在18岁的时候______ the age of 18
5.开始，在……起初______ the beginning of
6.此刻________ the moment=now
7.从……到……________…_______…
—
8.下课/放学/下班后________class/school/work
9.在圣诞节________ Christmas Day
10.过了一会儿________ a while
( 2)选择
traveled overnight to Paris and arrived _______ 5 o’clock ______ the morning.
A. on; in
B. at; in
C. at; on
D. in; on
2. Jack has studied Chinese in this school _______ the year of 2000.
A. since
B. in
C. on
D. by
？
3 My brother joined the army ＿＿＿
A 1989，March
B in March，1989
C March，1989
D 1989，in March
4We had our breakfast ＿＿＿a quarter ＿＿＿seven
A /，to
B in，to
C at，to
D on，to
5 I was born ＿＿＿the night ＿＿＿September 15，1978
A in，on Bat，on Cat，in Don，of
6 The people's Republic of China was founded ＿＿＿1949。

A with
B on
C since
D in
7 He arrived _____ Guangzhou ____ noon.
A. in; in
B. to; at
C. in; at
D. at; in
8 --When will Mr Black come to Beijing
-- ____ September 5th.
A. On
B. To
C. At
D. In
9 ____ the night before Christmas Day, parents fill their children’s stockings with small presents.
A. Of
B. At
C. To
D. On
10 We left Xi’an _______ a very hot summer afternoon.
A. on D. by。