on
prep.在...之上, 依附于, 临近, 靠近, 向, 在...时候, 关于, 涉及
adv.在上, 向前, 行动中, 作用中
on“在具体某一天”①
“当某时”,动名词, arrival,death前;early,late位句先②,用in一般“上”“下”“晚”;on用于天,in用于月、季、年③;限定三时in要变。 ④at是个时间点,“工作”“时刻”与“圣诞”⑤。at noon(night),in the day,习惯用语记心间。
注:①on表示在具体某一天及具体某一天的上午、下午和晚上。
例 On mother's Day, we should send flowers to our mother. 母亲节,我们应该送花给我们的母亲。
On my arrival home,I found he had gone already.当我到家时,我发现他已经走了。
在桌子上 on the table
爱好做某事 be keen on (doing)sth.
就共同关心的问题交换意见exchange views on questions of common concern
担任委员be on thr committee
罢工工人workers on strike
在电话里交谈talk on the phone
由...支付
in, to, on和off在方位名词前的区别
1. in表示A地在B地范围之内。如:
Taiwan is in the southeast of China.
2. to表示A地在B地范围之外,即二者之间有距离间隔。如:
Japan lies to the east of China.
3. on表示A地与B地接壤、毗邻。如:
North Korea is on the east of China.
4. off表示“离……一些距离或离……不远的海上”。如:
They arrived at a house off the main road.
New Zealand lies off the eastern coast of Australia.
at, in, on, by和through在表示时间上的区别
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 products will be produced 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.
5. through指时间意为“从……开始到结束”,此时与throughout相同。如:
We work hard all through the year.
at, in和on表示地点时的区别
1. at表示地点:
(1)用于指较小的地方。如:
I shall wait for you at the station.
(2)用于门牌号码前。如:
He lives at 115 Zhongshan Road.
2. in表示地点:
(1)用于指较大的地方。如:
He lives in Shanghai.
(2)虽然是很小的地方,如果说话人住在那里,也可用in。商店、学校、机关等,若看作一个地点(point)用at,若看作一个场所(place)用in。如:
I met him at the post-office.
I’m now working in the post-office.
3. on表示地点,一般指与面或线接触,意为“在……上;在……旁”。如:
The picture was hanging on the wall.
New York is on the Hudson River.
above, over, on, up表示“在……上”之间的区别
1. above指“……上方”,表示相对高度,不一定在正上方,其反义词为below。如:
We’re flying above the clouds.
2. over指“在……正上方”,表示垂直上方,其反义词为under。如:
The bridge is over the river.
3. on表示“在……上面”,与物体表面接触,与beneath相对。如:
There is a map on the wall.
The earth felt soft beneath our feet.
4. up表示动作的方向往上,反义词为down。如:
Please hang the picture up.