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1. å¨when,whenever,while,until,as soon asçå¼å¯¼çæ¶é´ç¶è¯ä»å¥ä¸,å¯ä»¥çç¥ä¸ä¸»å¥ä¸ä¸»è¯ç¸åç主è¯åç³»å¨è¯æå©å¨è¯ã
When (he was) a child he ran wild. ä»å°çæ¶åå¾ä¸å®è§ç©ã
They were scolded whenever (they were) late for school.æ¯æ¬¡ä¸å¦è¿å°,ä»ä»¬é½è¦æ¨éªã
While (he was) in prison,he wrote his first novel.ä»å¨ç±ä¸ååºäºç¬¬ä¸é¨å°è¯´ã
As soon as (I am) on board I always feel sick. æä¸ä¸è¹å°±æå°æ¶å¿ã
2. å¨if,unless,onceçå¼å¯¼çæ¡ä»¶ç¶è¯ä»å¥ä¸ã
If (it is) not well organized,the meeting will be a failure.å¦æç»ç»ä¸å¥½,ä¼è®®å°±ä¼å¤±è´¥ã
Substances have no tendency to expand unless(they are) heated.é¤éåç,ç©è´¨ä¸ä¼æè¨èçå¾åã
Once (she was) inside her bedroom,she began to cry. ä¸èµ°è¿å§å®¤,她就å¼å§åã
3. å¨where,whereverå¼å¯¼çå°ç¹ç¶è¯ä»å¥ä¸,å¯ä»¥çç¥ä¸»è¯åç³»å¨è¯æå©å¨è¯ã
Through long power lines,electricity goes where (it is) needed.çµéè¿è¾çµçº¿è¾éå°éè¦å®çå°æ¹å»ã
4. å¨than,aså¼å¯¼çæ¯è¾ç¶è¯ä»å¥ä¸ã
She works better than I (works). 她工ä½åå¾æ¯æ好ã
I'd rather play football than (I'd rather) go swimming. ä¸å ¶å»æ¸¸æ³³æè¿ä¸å¦å»è¸¢è¶³çã
Run as fast as you can (run). ä½ è½è·å¤å¿«å°±è·å¤å¿«ã
5. å¨âthe+æ¯è¾çº§,the+æ¯è¾çº§âçå¥åä¸ã
The greater the force of action (is),the greater the force of reaction (is).ä½ç¨åè¶å¤§,åä½ç¨åä¹è¶å¤§ã
6. å¨whatever,howeverå¼å¯¼ç让æ¥ç¶è¯ä»å¥ä¸,å¯ä»¥çç¥ç³»å¨è¯ã
He was determined to carry out the plan,whatever the cost (was).ä»å³å¿æ§è¡è®¡å,ä¸ç®¡ä»£ä»·å¦ä½ã
However difficult the task (may be),we must finish it on time.ä¸ç®¡è¿ä»»å¡æå¤é¾,æ们é½å¿ é¡»ææ¶å®æã