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always, usually, often, sometimes, every week (day, year, monthâ¦), once a week, on Sundays, etc.
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æ¶é´ç¶è¯ï¼ago, yesterday, the day before yesterday, last week(year, night, monthâ¦), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.
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æ¶é´ç¶è¯ï¼now, at this time, these days, etc.
åºæ¬ç»æï¼am/is/are+doing
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åºæ¬ç»æï¼was/were+doing
å¦å®å½¢å¼ï¼was/were + not + doing.
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æ¶é´ç¶è¯ï¼recently, lately, sinceâ¦forâ¦,in the past few years, etc.
åºæ¬ç»æï¼have/has + done
å¦å®å½¢å¼ï¼have/has + not +d one.
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æ¶é´ç¶è¯ï¼before, by the end of last year(term, monthâ¦),etc.
åºæ¬ç»æï¼had + done.
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æ¶é´ç¶è¯ï¼tomorrow, next day(week, month, yearâ¦),soon, in a few minutes, byâ¦,the day after tomorrow, etc.
åºæ¬ç»æï¼â am/is/are/going to + doï¼â¡will/shall + do.
å¦å®å½¢å¼ï¼â was/were + not; â¡å¨è¡ä¸ºå¨è¯åå didn'tï¼åæ¶è¿åè¡ä¸ºå¨è¯ã
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æ¶é´ç¶è¯ï¼the next day(morning, yearâ¦),the following month(weekâ¦),etc.
åºæ¬ç»æï¼â was/were/going to + doï¼â¡would/should + do.
å¦å®å½¢å¼ï¼â was/were/not + going to + do;â¡would/should + not + do.
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ä¸ãä¸è¬è¿å»æ¶ä¸ç°å¨å®ææ¶ç转æ¢
å¨ç°å¨å®ææ¶ä¸ï¼å»¶ç»æ§å¨è¯è½ä¸è¡¨ç¤ºä¸æ®µæ¶é´çç¶è¯è¿ç¨ï¼ç¬é´å¨è¯å´ä¸è½ãä½æ¯ï¼å¯ç¨å«ç表达æ¹å¼ï¼â ç¬é´å¨è¯ç¨äºâä¸æ®µæ¶é´ + agoâçä¸è¬è¿å»æ¶çå¥åä¸ï¼â¡ç¬é´å¨è¯å¯æ¹æä¸ä¹ç¸å¯¹åºç延ç»æ§å¨è¯åçè¯ï¼ä¸ä¸æ®µæ¶é´è¿ç¨ï¼â¢ç¬é´å¨è¯ç¨äºâIt is + ä¸æ®µæ¶é´ + since + ä¸è¬è¿å»æ¶âçå¥åä¸ï¼è¡¨ç¤ºâèªä»â¦â¦ä»¥æ¥æâ¦â¦æ¶é´âçææï¼ä¸»å¥ä¸è¬ç¨it isæ¥ä»£æ¿It has been;â£ç¬é´å¨è¯ç¨äºâSome time has passed since + ä¸è¬è¿å»æ¶âçå¥åä¸ã请çï¼
A. He joined the League two years ago.
B. He has been in the League for two years.
C. It is two years since he joined the League.
D. Two years has passed since he joined the League.
äºãä¸è¬ç°å¨æ¶ä¸ç°å¨è¿è¡æ¶ç转æ¢
å¨ä¸è¬ç°å¨æ¶ä¸ï¼atå ä¸åè¯è¡¨ç¤ºâå¤äºæç§ç¶æâï¼å¦at workï¼å¨å·¥ä½ï¼, at schoolï¼ä¸å¦ãä¸è¯¾ï¼çãæ¤çè¯å¯ä¸è¿è¡æ¶æ转æ¢ã请çï¼
Peter is at work, but Mike is at play.
Peter is working, but Mike is playing.
ä¸ãç°å¨è¿è¡æ¶ä¸ä¸è¬å°æ¥æ¶ç转æ¢
å¨ç°å¨è¿è¡æ¶æä¸go, come, leave, start, arriveçå¨è¯å¸¸ä¸è¡¨ç¤ºå°æ¥çæ¶é´ç¶è¯è¿ç¨è¡¨ç¤ºå°è¦åççå¨ä½ãå¦ï¼I am coming, Mum! æ为âæå°±æ¥ï¼å¦å¦ï¼â请çï¼
The train is leaving soon.
The train will leave soon.
åãâbe going to+å¨è¯åå½¢âä¸âwill(shall)+å¨è¯åå½¢âç»æç转æ¢
âbe going to+å¨è¯åå½¢âã表示æç®ã计åè¦åçäºï¼å°æ¥æ¶âwill(shall)+å¨è¯åå½¢âç»æå¨ä¹¦é¢è¯ä¸ï¼å½ä¸»è¯ä¸ºç¬¬ä¸äººç§°æ¶ï¼å¸¸ç¨å©å¨è¯shallãå¨å£è¯ä¸ï¼ææ人称é½å¯ä»¥ç¨willã请çï¼
We are going to visit the Great Wall next Sunday.
We shall visit the Great Wall next Sunday
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