ä¸è¬ç°å¨æ¶ do
ä¸è¬è¿å»æ¶ did
ä¸è¬å°æ¥æ¶ will do
ç°å¨è¿è¡æ¶ isï¼am areï¼doing
è¿å»è¿è¡æ¶ wasï¼wereï¼doing
ä¸è¬è¿å»å°æ¥æ¶ would do
è¿å»å®ææ¶æ had done
ç°å¨å®ææ¶ haveï¼hasï¼done
ä¸ã ä¸è¬ç°å¨æ¶
1ãå®ä¹ 表示ç»å¸¸åççå¨ä½æåå¨çç¶æ,å¦è½åãç¹å¾ãæ§è´¨ã身份ç.
2ãææ 1) be --- is, am, are 2) å®æå¨è¯ç¨å形表示 (注æå½ä¸»è¯ä¸ºç¬¬ä¸äººç§°åæ°æ¶,å¨è¯ + sæ + es)
å¥åè½¬æ¢ 1) æ
æå¨è¯,èç³»å¨è¯æåæç´æ¥å¨å
¶åå not 2) å®æå¨è¯å do/ doesædon't/ doesn't
3ãç¨æ³ 1) 表示ç»å¸¸æ§çãä¹ æ¯æ§çææ°¸ä¹
æ§çå¨ä½,å¸¸ä¸ always, usually, often, sometimes, every day,
twice a monthçè¿ç¨. e.g. Does he usually go to school on foot?
2) 表示åå¨çç¶æ,常ç¨å¨è¯ be, have, love, like, know, see, hear, think, have, belong to ç.注æè¿äº
å¨è¯ä¸è¬ä¸ç¨è¢«å¨è¯æ. e.g. He doesn't like music.
3) 表示ä¸åæ¶é´éå¶ç客è§äºå®ææ®éçç. e.g. The earth goes round the sun.
äºãä¸è¬è¿å»æ¶
1ãå®ä¹ 表示è¿å»æä¸æ¶é´å
åççå¨ä½æåå¨çç¶æ,å¯è½æ¯ä¸æ¬¡ç,ä¹å¯è½æ¯ç»å¸¸ç,å¨ä½å·²å®æ.
2ãææ 1) be â was,were 2) å®æå¨è¯ç¨è¿å»å¼æ¥è¡¨ç¤º,没æ人称åæ°çåå.
å¥åè½¬æ¢ 1) was, were æåæç´æ¥å not 2) å®æå¨è¯å didædidn't(å¨è¯æ¹ä¸ºåå½¢)
3ãç¨æ³ 1) 表示è¿å»æä¸æ¶é´å
åççå¨ä½æåå¨çç¶æ,常ä¸è¡¨ç¤ºè¿å»çæ¶é´ç¶è¯è¿ç¨ yesterday , last Friday, in 1994, an hour ago, a moment ago, last November, before 1997, on December 26, 1976. yesterday morning.
2) 表示è¿å»ç»å¸¸æåå¤åççå¨ä½. When I was in the university, I did morning exercises every day.
3) had(haveçè¿å»å¼)å½âæâ讲æ¶,ææçé®åå¦å®æ两ç§å½¢å¼,å
¶ä»è¯ä¹åå®æå¨è¯.
Did you have no friends? He hasn't enough time.
My father doesn't have lunch at factory. (ä¸ç¨ haven't) Did you have a good time?
ä¸ãä¸è¬å°æ¥æ¶
1ãå®ä¹ 表示å°æ¥æä¸æ¶é´å
è¦åççå¨ä½æåå¨çç¶æ,常ä¸è¡¨ç¤ºå°æ¥çæ¶é´ç¶è¯è¿ç¨.å¦tomorrow, today, this week, next week, next month, next year, next Wednesday, from now on, in a year, in the future
2ãææåç¨æ³1)shall (第ä¸äººç§°)åwill (ææ人称) + å¨è¯åå½¢, 缩å为 â'llâ,å¦å®ç¼©å为shan't, won't.
2) be going to do,常ç¨äºå£è¯,表示æç®å»åçäºåå¯è½è¦åççäº. It's going to rain.
3) is/ am/ are about to do...when...表马ä¸è¦åççäº,ä¸ä¸æ¶é´è¿ç¨.I was about to leave when it rained.
4) be to do sth. æ计åæèè´£ãä¹å¡è¦æ±å¿
é¡»åçäºæå³å°åççå¨ä½.
5) ç»æ¢æ§å¨è¯come, go, leave, arriveççç°å¨è¿è¡æ¶å»è¡¨ç¤ºæ计å,å®ææå³å°è¿è¡çå¨ä½.
6) 以if, as soon as, when, once, unlessçå¼å¯¼çä»å¥çä¸è¬ç°å¨æ¶è¡¨ç¤ºä¸è¬å°æ¥æ¶.
åãè¿å»å°æ¥æ¶
1ãå®ä¹ 表示ä»è¿å»æä¸æ¶é´æ¥çå°è¦åççå¨ä½æåå¨çç¶æ.
2ãææåç¨æ³ should (第ä¸äººç§°)æwould (第äº,ä¸äººç§°) + å¨è¯åå½¢,常ç¨äºå®¾è¯ä»å¥ä¸.
We asked him where we should have a meeting. å
¶ä»ç¨æ³è§ä¸è¬å°æ¥æ¶.
äºãç°å¨è¿è¡æ¶åè¿å»è¿è¡æ¶
å®ä¹ï¼ç°å¨è¿è¡æ¶è¡¨ç¤º1ï¼ç°å¨æ£å¨è¿è¡çå¨ä½ 2ï¼ç°é¶æ®µä¸ç´
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