之前尔们对于介词at, on , in 干过单一的#。今日首要对于at入行齐面的用法剖析。从at的意思,欠语到用法辨析齐部蕴含。
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at 介词,用法以下:
① 意味“处于。。 . ”景遇,如:
The two countries are at war.二邦正在接战
Is she at meeting?
她在启会吗?
at work/play 服务中/游玩中
at table 用餐中
at tea time 在饮茶进程中
② 意味“按···快度,照···价钱”, 如:
The tr#n runs at about 120 miles an hour.
火车以每一小时大约120英里的快度行驶。
Apples are sold at one dollar a kilogram.
苹果每一千克售一好元。
He will get it at any cost.
他将没有惜一切价值得回它。
at full/high speed 齐快/高快
at a high/low price 以高/矮价
③意味“在···方面”, 如:
She is good at playing the piano. 她善长弹钢琴。
④意味“在···时刻、钟点、时代、岁”, 如:
at that moment 即在那时
at the age of seven 在七岁时
at noon, at dawn(黎亮),at dusk(入夜),at night,
at sunrise, at daybreak, at the weekend
⑤在···上(意味所在、场地), 如:
There came a knock at the window.
传来了敲窗子的声音。
They entered at the back door.
他们是从后门入往的。
The shop is at the corner.
⑥取描摹词连用,意味“因某种情结而···”, 罕见的这种词组有 be surprised at sth, be astonished at sth, be shocked at sth, be pleased at doing sth, be angry at sth, 如:
They entered at the back door.
他们是从后门入往的。
The shop is at the corner.
商铺在大街的拐角处。
⑥取描摹词连用,意味“因某种情结而···”, 罕见的这种词组有 be surprised at sth,be astonished at sth, be shocked at sth, be pleased at doing sth, be angry at sth, 如:
They were in deep sorrow at the news.
闻到阿谁音问他们特殊哀伤。
The teachers are surprised at the boy's wisdom.
教员对于阿谁小男孩的聪慧惊叹没有已。
She felt glad at your success.
她为你的胜利而感应得意。
⑦ 取动词连用意味“对于,向,晨(意味目标、标的)”, 这种动词有 laugh, wonder, cry, weep等,如:
He threw a stone at the dog.
他抛一块石头向狗砸往。
He #med at the bird.
他对准了那只鸟。
They tried to guess at the meaning.
他们试图把意义猜出来。
⑧“at 名词欠语”意味“因···而孕育某种情结,一··即··. ”, 如:
at the sight of 一观睹···即···
at the sound of 一闻到···即···
at the news of 一得回···音问,即
⑨意味“应···恳求、呼唤、恭请;以···式样”, 如:
He joined the party at the invitation of the hostess.
他应女主人的恭请加入了晚会。
She agreed to come at our request.
她应尔们的恭请共意来。
The car was rep#red at his epense(花费)。
汽车是他出钱建的。
【辨析】
意味“在什么时候”经常使用介词at,on,in.试比拟:
at一般用来意味在某一确实的年光点,在意味没有细目的年光以及欠期假日的名词以前也用 at, 如:
at seven o'clock 在七点钟
at lunchtime 在午餐时
at Christmas(但 on Christmas Day)在圣诞节
at night 在晚上
at the weekend 在周末
at the age of(at age···)在···岁时
at first/at last 起先/结尾
at once 立刻
on用来意味时段,指“某天或许某天的晨夕”, 如:
on Monday 在礼拜一
on the last of May 在蒲月的结尾一天言,
on my birthday 在尔诞辰那天
on Sunday morning 在礼拜天早上
on the following evening 次日晚上 天排
on the afternoon of April 11 在四月十一日的下昼
倘使在 morning/evening 以前有描摹词建饰,也需用on, 如:
on a fine morning 在一个晴朗的凌晨
on a cold evening 在一个酷寒的星夜由
in用来意味一段年光,善于或许欠于一天的年光也用in, 还可用在月、季候、年等年光欠语前,如:
in the morning/afternoon/evening
在凌晨/下昼/晚上
in a minute 有顷
in a week一周内
in 2005 在2005年
in September 在玄月
in summer 在夏令
in the 21st century 在两十一世纪
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