A at,on
用atæ¥è¡¨ç¤ºåœ¨æŸä¸€æ—¶åˆ»ï¼š
at dawn在黎明
at six在6点钟
at midnight在åˆå¤œ
at 4∶30在4点30分
用atæ¥è¡¨ç¤ºåœ¨å²æ—¶ï¼š
at sixteen/at the age of sixteen 16å²çš„æ—¶å€™
She got married at seventeen.
她17å²ç»“婚。
用onæ¥è¡¨ç¤ºåœ¨æ˜ŸæœŸå‡ ï¼æŸæ—¥ï¼š
on Monday在星期一
on 4 June在 6月 4日
on Christmas Day在圣诞那一天
但以下的状况例外:
at night在晚上
at Christmas在圣诞期间(ä¸åªå½“天)
at Easteråœ¨å¤æ´»èŠ‚æœŸé—´ï¼ˆä¸åªå½“天)
on the morning/afternoonï¼eveningï¼night of a certain date在æŸä¸€å…·ä½“日期的早上ï¼ä¸‹åˆï¼å‚晚ï¼å¤œé‡Œ
We arrived on the morning of the sixth.
大家在6å·æ—©ä¸Šåˆ°è¾¾ã€‚
当然也å¯ä»¥è¯´ï¼š
thisï¼next Monday在这个ï¼ä¸‹ä¸ªæ˜ŸæœŸä¸€
any Monday在任何一个星期一
one Monday在æŸä¸ªæ˜ŸæœŸä¸€
B by,before
by a timeï¼dateï¼periodï¼at that time or beforeï¼not later than that date
在那一时刻或在那1日期或ä¸è¿ŸäºŽé‚£1日期
è¿™ç§è¡¨ç¤ºåŠžæ³•å¸¸æš—æŒ‡åœ¨é‚£ä¸€æ—¶åˆ»æˆ–æ—¥æœŸä¹‹å‰ï¼š
The train starts at 6∶10,so you had better be at the station by 6∶10.
ç«è½¦6点10分å‘è½¦ï¼Œæ‰€ä»¥ä½ æœ€å¥½åœ¨6点10分之å‰åˆ°è¾¾ç«è½¦ç«™ã€‚
by+a timeå¸¸å¸¸å’Œå®Œæˆæ—¶æ€è¿žç”¨ï¼Œç‰¹åˆ«ä¸Žä»¥åŽå®Œæˆæ—¶æ€è¿žç”¨ï¼ˆå‚è§ç¬¬216节):
By the end of July Ill have read all those books.
到7月底我将已把那些书全读完了。
beforeå¯ä½œä»‹è¯ã€è¿žè¯æˆ–副è¯ï¼š
Before signing this
在ç¾ç½²è¿™ä¸ªä¹‹å‰ï¼ˆä»‹è¯ï¼‰
Before you sign this
åœ¨ä½ ç¾ç½²è¿™ä¸ªä¹‹å‰ï¼ˆè¿žè¯ï¼‰
Ive seen him somewhere before.
我以å‰åœ¨ä»€ä¹ˆåœ°æ–¹è§åˆ°è¿‡ä»–。(副è¯ï¼‰
(å‚è§ç¬¬195节B与第342节。)
C on time,in time,in good time
on time(按时,按时,既ä¸åœ¨æ¤æ—¶ä»¥å‰ä¹Ÿä¸è¿ŸäºŽæ¤æ—¶ï¼‰ï¼š
The 8∶15 train started on time.
8点15分的ç«è½¦æŒ‰æ—¶å‘车。ç‰äºŽï¼š
It started at 8∶15.
ç«è½¦åœ¨ç‚¹15分æ£ç‚¹å‘车。
in timeï¼in time for(+åè¯ï¼‰ï¼ˆå‡†æ—¶ï¼Œä¸è¿ŸäºŽï¼‰ï¼›in good time (for)(留有充足的时间):
Passengers should be in time for their train.
旅客们è¦ä¹˜åç«è½¦æ—¶åº”当早点到。
I arrived at the concert hall in good time(for the concert).
我准时到达了音ä¹åŽ…ã€‚ï¼ˆæˆ–è®¸éŸ³ä¹ä¼š7点åŠå¼€å§‹ï¼Œè€Œæˆ‘在7点15分就到了)。
D on arrival,on arriving,on reaching,on getting to
On arrivalï¼on arriving,heç‰äºŽï¼š
When he arrives/arrived,he
在他到达时,他
åŒç†ï¼Œon也å¯ä»¥ä¸Žå…¶ä»–æŸäº›åЍè¯ï¼ˆä¸»å¦‚æžœè¡¨ç¤ºäº¤æµæ€æƒ³çš„动è¯ï¼‰è¿žç”¨ï¼š
On checking,she found that some of the party didnt know the way.
ç»æ ¸æŸ¥ï¼Œå¥¹å‘çŽ°è¿™ä¸€ç»„äººä¸æœ‰çš„ä¸è®¤å¾—路。
On hearingï¼Hearing that the plane had been perted,they left the air- port.
一å¬åˆ°é£žæœºå·²ç»æ”¹é£žåˆ«çš„æœºåœºï¼Œä»–们就离开了机场。
åŽé¢ä¸€å¥ä¸çš„onå¯ä»¥çœç•¥ã€‚(å‚è§ç¬¬277节。)
E at the beginningï¼end,in the beginningï¼end,at firstï¼at lastat the beginning(of)(在的开头)ï¼at the end(of)(在的最åŽï¼Œç…§å…¶å—é¢çš„æ„æ€è¡¨ç¤ºåœ¨å¼€å¤´ï¼æœ€åŽï¼‰ï¼š
At the beginning of a book there is often a table of contents.
在一本书的开头常常有个目录。
At the end there may be an index1.
结尾处å¯èƒ½æœ‰ç´¢å¼•。
in the beginningï¼at first(=in the early stages在当åˆï¼åˆšå¼€å§‹ï¼‰æš—示ç€å°†æ¥æœ‰æ‰€å˜åŒ–。
In the beginningï¼At first we used hand tools.Later we had machines.
当åˆï¼åˆšå¼€å§‹å¤§å®¶ç”¨æ‰‹å·¥å·¥å…·ï¼ŒåŽæ¥å¤§å®¶æœ‰äº†æœºå™¨ã€‚
in the endï¼at last(=eventuallyï¼after some time最åŽï¼ç»ˆäºŽï¼åŽæ¥ï¼‰ï¼š
At first he opposed2 the marriage,but in the end he gave his consent3.
刚开始他å对这桩婚事,但最åŽè¿˜æ˜¯èµžåŒäº†ã€‚