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¶ç¨æ³ï¼å¨ä½¿ç¨æ¶å°±ä¼é æé误ãä¾å¦ï¼I have not heard from him since I lived in Shanghai.
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He has studied very hard since he came to our school.èªä»ä»æ¥å°æ们å¦æ ¡ï¼ä»å¦ä¹ å°±é常åªåã
We have been missing them since they left hereèªä»ä»ä»¬ç¦»å¼è¿éï¼æ们就ä¸ç´å¾æ³å¿µä»ä»¬ã
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I havenât heard any noise since I slept. Sleep 为æç»æ§å¨è¯ï¼sleepçå¨ä½ç»ææ¶ï¼å³âéæ¥âæ¶ï¼è¿å¥åºè¯ä¸ºâæéåè¿æªå¬å°ä»»ä½å£°é³âã
John is now with his parents in New York, it is already three years since he was a teacher约翰ç°å¨åç¶æ¯ä¸èµ·ä½å¨çº½çº¦ï¼ä»ä¸å½æå¸å·²ç»ä¸å¹´äºã
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How long is it since you lived in Shanghai?ä½ ç¦»å¼ï¼æ²¡ä½å¨ï¼ä¸æµ·å¤ä¹
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It is half a month since he was a League member.ä»éå¢ï¼ä¸å½å¢åï¼å个æäºã
Itâs been quite some time since I was last in Londonæ离å¼ä¼¦æ¦å·²å¾é¿æ¶é´äºã
æ¯è¾ï¼He has written to me frequently since I was ill.èªä»æç
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He has written to me frequently since I fell ill.èªä»æçç
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I havenât heard from him since he has lived thereã
è¿éhas lived表示å¨ä½çæç»æ§ï¼æ¶é´çèµ·ç¹åºä»ï¼âå¼å§å±
ä½âæ¶ç®èµ·ãå æ¤æ¤å¥å¯ç解为âèªä»ä»ï¼å¼å§ï¼ä½å¨é£å¿èµ·ï¼æå°±ä¸ç´æ²¡æ¶å°ä»çæ¥ä¿¡âã
Since we have owned a car, we have gone camping every yearãèªä»æ们èªå·±æäºæ±½è½¦ï¼æ们æ¯å¹´é½å»éè¥ã
è¯æ¯è¾ï¼1. Since Iâve been at this school, we have had three headmasters.èªä»æå°è¿æå¦æ ¡ï¼æ们已æ¢äºä¸ä¸ªæ ¡é¿äºã
Since I was at this school, they have had three headmasters.èªä»æ离å¼è¿æå¦æ ¡ï¼ä»ä»¬å·²æ¢äºä¸ä¸ªæ ¡é¿äºã
2.He has never been to see me since I have been ill. èªä»æçç
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He has never been to see me since I was ill. èªä»æç
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It is a long time since he didnât study English.
Itâs two months since you didnât come to see me.
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Itâs a long time since he studied English ä»å¥½ä¹
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You havenât come to see me for two months. ä½ æ两个æ没æ¥çæäºã
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å½±åãå¦ï¼learn, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, sleep, live, stayçã
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1.延ç»æ§å¨è¯å¯ä»¥ç¨äºç°å¨å®ææ¶ï¼å
¶å®ææ¶æå¯ä¸è¡¨ç¤º"段æ¶é´"çç¶è¯è¿ç¨ã表示"段æ¶é´"ççè¯æï¼for two years, during the past three years, since last year, how longçãå¦ï¼I have learned English since I came here.èªä»ææ¥å°è¿å¿å°±å¦è±è¯äºã
2.延ç»æ§å¨è¯ä¸è½ä¸è¡¨ç¤ºçææ¶é´ç"ç¹æ¶é´"ç¶è¯è¿ç¨ãå¦ï¼It raind at eight yesterday morning.(误) rain为延ç»æ§å¨è¯ï¼èat eight表示"ç¹æ¶é´"ï¼ååæ¾ç¶çç¾ãå¦æç¨å»¶ç»æ§å¨è¯è¡¨ç¤ºä¸ç¬é´çå¨ä½ï¼å¯ä»¥åå©come, begin, getçç»æ¢æ§å¨è¯æ¥è¡¨ç¤ºãä¸å¥å¯æ¹ä¸ºï¼It began to rain at eight yesterday morning.(æ£)åå¦ï¼
-When did you get to know Jack?
-Two years ago.
-Then you've known each other for more than two years.
-That's right.
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1.ç»æ¢æ§å¨è¯å¯ç¨æ¥è¡¨ç¤ºæä¸å¨ä½å®æï¼å æ¤å¯ç¨äºç°å¨å®ææ¶ãå¦ï¼
The train has arrived.ç«è½¦å°äºã
Have you joined the computer group?ä½ å å
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2.ç»æ¢æ§å¨è¯è¡¨ç¤ºçå¨ä½æå
¶çæï¼ä¸è½æç»ãå æ¤ï¼ä¸å¯ä¸è¡¨ç¤ºä¸æ®µæ¶é´çç¶è¯è¿ç¨(åªéè¯å®å¼)ãå¦ï¼
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误ï¼He has died for three years.
æ£ï¼He has been dead for three years.
æ£ï¼He died three years ago.
æ£ï¼It is three years since he died.
æ£ï¼Three years has passed since he died.
(2)ä»æ¥è¿å¿äºå¤©äºã
误ï¼He has come here for five days.
æ£ï¼He has been here for five days.
æ£ï¼He came here five days ago.
æ£ï¼It is five days since he came here.
æ£ï¼Five days has passed since he came here.
(1)ã(2)å¥ä¸çdieãcome为ç»æ¢æ§å¨è¯ï¼ä¸è½ä¸è¡¨ç¤º"段æ¶é´"çç¶è¯è¿ç¨ãé£ä¹ï¼åºå¦ä½æ£ç¡®è¡¨è¾¾å¢ï¼å¯ä»¥éç¨ä¸é¢çåç§æ¹æ³ï¼
(1)å°å¥ä¸ç»æ¢æ§å¨è¯è½¬æ¢ä¸ºç¸åºç延ç»æ§å¨è¯ï¼å¦ä¸é¢ä¸¤ä¾ä¸ç第ä¸ç§æ£ç¡®è¡¨è¾¾æ¹å¼ãä¸é¢å举å ä¾ï¼leaveâbe away, borrowâkeep, buyâhave, begin/startâbe on, dieâbe dead, move toâlive in, finishâbe over, joinâbe in/be a member of, open sth.âkeep sth. open, fall illâbe ill, get upâbe up, catch a coldâhave a coldã
(2)å°å¥ä¸è¡¨ç¤º"段æ¶é´"çç¶è¯æ¹ä¸ºè¡¨ç¤ºè¿å»ç¡®å®æ¶é´çç¶è¯ï¼å¦ä¸é¢ä¸¤ä¾ä¸ç第äºç§æ£ç¡®è¡¨è¾¾æ¹å¼ã
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(4)ç¨å¥å"æ¶é´+has passed+since..."表达åæï¼å¦ä¸é¢ä¸¤ä¾ä¸ç第åç§æ£ç¡®è¡¨è¾¾æ¹å¼ã
3.ç»æ¢æ§å¨è¯å¯ç¨äºç°å¨å®ææ¶å¦å®å¼ä¸ï¼æ为å¯ä»¥å»¶ç»çç¶æï¼å èå¯ä¸è¡¨ç¤ºä¸æ®µæ¶é´çç¶è¯è¿ç¨ãå¦ï¼
He hasn't left here since 1986.
I haven't heard from my father for two weeks.
4.ç»æ¢æ§å¨è¯çå¦å®å¼ä¸until/tillè¿ç¨ï¼ææ"not+ç»æ¢æ§å¨è¯+until/till ..."çå¥åï¼æ为"ç´å°â¦â¦æâ¦â¦"ãå¦ï¼
You can't leave here until I arrive.ç´å°æå°äºï¼ä½ æè½ç¦»å¼è¿éã
I will not go to bed until I finish drawing the picture tonight.ä»å¤©æä¸ç´å°æç»å®ç»ï¼ææä¸åºç¡è§ã
5.ç»æ¢æ§å¨è¯å¯ä»¥ç¨äºwhenå¼å¯¼çæ¶é´ç¶è¯ä»å¥ä¸ï¼ä½ä¸å¯ä»¥ç¨äºwhileå¼å¯¼çæ¶é´ç¶è¯ä»å¥ä¸ãwhen表示çæ¶é´æ¯"ç¹æ¶é´"(ä»å¥è°è¯å¨è¯ç¨ç»æ¢æ§å¨è¯)ï¼ä¹å¯ä»¥æ¯"段æ¶é´"(ä»å¥è°è¯å¨è¯ç¨å»¶ç»æ§å¨è¯)ãèwhile表示çæ¯ä¸ä¸ªè¾é¿çæ¶é´æè¿ç¨ï¼ä»å¥è°è¯å¨è¯ç¨å»¶ç»æ§å¨è¯ãå¦ï¼
When we reached London, it was twelve o'clock. (reach为ç»æ¢æ§å¨è¯)
Please look after my daughter while/when we are away. (be away为延ç»æ§å¨è¯çè¯)
6.ç»æ¢æ§å¨è¯å®ææ¶ä¸å¯ä¸how longè¿ç¨(åªéäºè¯å®å¼)ãå¦ï¼
误ï¼How long have you come here?
æ£ï¼How long have you been here?
æ£ï¼When did you come here?
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