介词at,in,on在时间的用法区别

发布网友 发布时间:2022-04-21 06:08

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热心网友 时间:2022-06-18 10:01

1.
at指时间表示:
(1)时间的一点、时刻等。如:
They
came
home
at
sunrise
(at
noon,
at
midnight,
at
ten
o’clock,
at
daybreak,
at
dawn).
(2)较短暂的一段时间。可指某个节日或被认为是一年中标志大事的日子。如:
He
went
home
at
Christmas
(at
New
Year,
at
the
Spring
Festival,
at
night).
2.
in指时间表示:
(1)在某个较长的时间(如世纪、朝代、年、月、季节以及泛指的上午、下午或傍晚等)内。如:
in
2004,
in
March,
in
spring,
in
the
morning,
in
the
evening,
etc
(2)在一段时间之后。一般情况下,用于将来时,谓语动词为瞬间动词,意为“在……以后”。如:
He
will
arrive
in
two
hours.
谓语动词为延续性动词时,in意为“在……以内”。如:
These
procts
will
be
proced
in
a
month.
注意:after用于将来时间也指一段时间之后,但其后的时间是“一点”,而不是“一段”。如:
He
will
arrive
after
two
o’clock.
3.
on指时间表示:
(1)具体的时日和一个特定的时间,如某日、某节日、星期几等。如:
On
Christmas
Day(On
May
4th),
there
will
be
a
celebration.
(2)在某个特定的早晨、下午或晚上。如:
He
arrived
at
10
o’clock
on
the
night
of
the
5th.
(3)准时,按时。如:
If
the
train
should
be
on
time,
I
should
reach
home
before
dark.
4.
by指时间表示:
(1)不迟于,在(某时)前。如:
He
will
come
by
six
o’clock.
Jack
had
made
some
friends
by
the
time
you
came.
(2)在……间,在……的时候。如:
He
worked
by
day
and
slept
by
night.

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