时间状语从句原因状语从句地点状语从句目的状语从句结果状语从句条件状语从句让步状语从句比较状语从句方式状语从句引导词可分为两部分． when whenever as while before after until (till) since as soon asevery timenext timethe first/…timethe momentthe minuteinstantlyimmediatelydirectly ( 一…就… )1. as, while , when 的区别as: 当；一边…一边；随着＊某事一发生，另一事立即发生＊两个动作同时发生e.g. As the captain passed me, I askedhim whether there was any hope of saving the ship.As the day went on, the weather gotworse.while: 持续性动词／ 进行时＊一般或现在情况＊将来情况－ V 一般现在时或现在进行时＊过去情况e.g. Never get on or off a bus while itis in motion.e.g.—I’m going to the post office. -- While you are there, can you getsome stamps for me?e.g. I hurt my should while I was doinggym.when: 持续性／非持续性动词都可＊当．．．时＊正在．．．忽然e.g. Are you going to be a sailor when you leave school?Chen Wei and Susan were walking downthe street when they saw an accident.I was about to go swimming when ourguide stopped me.＊尽管／虽然／鉴于／如果／届时／在那时…e.g. He walks when he might take a taxi. The Queen will visit the town in May,when she will open the new hospital. How can you hope for mercy yourself when you show none? How could I live in Los Angeles whenall my favorite people live here?虽然届时如果既然becausesinceasfornow thatconsidering (that)seeing (that)既然考虑到／鉴于鉴于／由于／既然／因为because, since, as, forbecause— 直接原因，非推断．语气最强． 回答 whysince – 通常放句首．译为“既然”as– 不谈自明的原因，语气最弱．for– 放句中，引导后半句表原因。e.g. I danced in front of the people ________ I liked it. You’d better wear strong shoes________ we’ll do a lot of walking. _________ he was not well, I decidedto go without him. _________ everybo...
