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1,主å¥ä¸ºå¦å®æ¶ï¼è°è¯å¨è¯ä¸ºç»æ¢æ§å¨è¯ã常è§çå¨è¯æopen, start, leave, go, arrive, finish, begin, stop, etc.
For example:
1), The noise of the street didnât stop before/until it was midnight.
2), The children wonât come back until/before it is dark.
3), I didnât leave the lonely boy before/until his mother came home.
2,主å¥ä¸ºè¯å®å¼ï¼è°è¯ä¸ºå»¶ç»æ§å¨è¯ãè¿ç±»å¨è¯æï¼stand, live, stay, talk, be, wait, etc.
For example:
1). He lived with his parents until/before he graduated from school.
2). I will wait before/until he comes to my help.
3). I shall stay here until/before you come back.
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For example:
1). He fell asleep before I could take off his clothes.
2). We arrived there before it started to rain.
3). The holiday came to an end before I knew it.
4). He almost knocked me down before he saw me.
2ã主å¥è°è¯å¨è¯å¼ºè°å¨ä½çè¿ç¼æ§ï¼åªç¨before,è¿æ¶å¸¸ä¼´ææ¶é´æ®µç¶è¯ææ¶é´æ®µæ示ã
For example:
It was quite a long time before he found the elephant.è¿äºå¾é¿æ¶é´ï¼ä»ææ¾å°å¤§è±¡ã
We had walked a long way before we found some water.èµ°äºå¾é¿çè·¯æ们ææ¾å°æ°´ã
We had sailed for two days before we saw the land.èªè¡äºä¸¤å¤©æ们æåç°éå°ã
It was midnight before my brother came home.æå¥å¥ç´å°åå¤æåæ¥ã
3ãå¦æ强è°ä»å¥è°è¯å¨ä½æªåçå°±åç主å¥è°è¯å¨ä½ï¼åªç¨before,è¿æ¶å¸¸è¯ä¸ºâæªåï¼ä¸çï¼â¦â¦å°±â¦â¦â
For example:
1ï¼We can leave early in the morning before it gets too hot.è¶å¤©è¿ä¸å¤ªçï¼æ们ä¸åæ©ç¹ç¦»å¼ã
2ï¼I must write it down before I forget it.è¶æè¿æªå¿ï¼æå¿
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For example:
I would give up my job before I agree to be dismissed.æä¸å
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He will die of hunger before he steals.ä»å®æ¿é¥¿æ»ä¹ä¸æ¿æå»å·ã
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It was (not) long beforeâ¦ï¼ä¸ä¹
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It will (not) be long beforeâ¦ï¼ä¸å°ï¼è¦è¿å¾é¿æ¶é´æä¼â¦
For example:
.It will probably not be long before they understand each other.
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It was not long before the whole country rose up.
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For example:
1). We discussed the problem until/before he came back.
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2). We didnât discuss the problem until he came back.
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åµä¸å¯ä¸beforeäºæ¢ä½¿ç¨ï¼ä½å¨å¼ºè°å¥ä¸ä¸è¬ä»ç¨until;
1). It was not until he told me that I knew it.ç´å°ä»åè¯æææç¥éè¿ä»¶äºã
2ï¼.It was not until he finished his homework that he went home.ç´å°å®æä½ä¸ä»æå家ã
3ï¼æ¾äºå¥é¦æ¶ç¨until.
For example:
Antil he finished his homework ï¼he didnât go home. ç´å°å®æä½ä¸ä»æå家ã
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Not until he finished his homeworkï¼did he go home. ç´å°å®æä½ä¸ä»æå家ã
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