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1、TheAdverbialClause状语从句定义：在复合句中由从句表示的状语称作状语从句，来说明一件事情发生的时间,地点,原因,条件,结果等.它可以用来修饰谓语（包括非谓语动词）、定语或状语，或是整个句子。1、时间状语从句2、地点状语从句3、原因状语从句4、目的状语从句5、结果状语从句6、条件状语从句7、方式状语从句8、让步状语从句9、比较状语从句一时间状语从句连接词while,when,as,whenever,before,after,since,till,until,once,assoonas,nosooner…
2、than,hardly/scarcely/barely…when,themoment,thesecond,theinstant,everytime,eachtime,nexttime,thefirst/lasttime,bythetimedirectly,immediately,instantly等１.when/wheneverWhenIcameintotheroom,hewaswritingaletter.当我进屋时，他正在写信。Weshallgotherewheneverwearefree.我们什么时间有空，我们
3、就去那里。2.when/while/asWhen既可指某一点时间,也可指一段时间;Whenhereturned,hiswifewascooking.while指“在某一段时间里”，“在…期间”，引导的动作必须是持续性的;Whilehewasreading,hiswifewascooking.as强调主句和从句的动作同时发生。,翻译成”一边……一边……”Ashewasreading,hewaslisteningtotheradio.注意:when/while都可以做并列连词,连接并列句,when表示“就在这时”和“wa
4、sdoing”,“hadjustdone”和“wasabouttodo”连用;while则表示转折“然而”Iwaswalkinginthestreetwhensuddenlysomeonepattedmeontheshoulderfrombehind.Myfatherwascookingwhilemymotherwasplayingcards.3.“一……就……”AssoonasIarriveinShanghai,I’llwritetoyou.upon/on+arrivingImmediately+句子The+时间名
5、词(minute/moment……)+句子hardly…whennosooner…than4.连接词beforesince的小结：一、含义1．Wehadsailedfourdaysandfournightsbeforewesawland.2．Wehadn’trunamilebeforehefelttired.3．Pleasewriteitdownbeforeyouforgetit.4．BeforeIcouldgetinaword,hehadmeasuredme.“……才”“不到……就”“趁……”“还没来得及”二．B
6、efore从句中谓语不用否定式。如：Beforetheyreachedthestation,thetrainhadgone.三．1）句型Itwillbe/was＋段时间＋before…“过多久才……”如：Itwillbetwoyearsbeforeheleavesthecountry.2）句型Itwillbe/wasnot＋一段时间＋before…“没多久就……”如：Itwasn’ttwoyearsbeforeheleftthecountry.3）句型Itis＋段时间＋since…时间的计算一律从since从句的动作
7、完成或状态结束时算起。如：Itisthreeyearssinceshewasinthearmy.Itisthreeyearssinceshejoinedthearmy.延续性动词:反过来翻译短暂性动词:直译5till/untilWewaitedtill(until)hecameback.我们一直等到他回来。Shedidn’tstopworkinguntileleveno’clock.她到11点钟才停止工作。如主句动词是延续性动作，常用肯定式，表示“直到…为止”;如主句动词是瞬间动词，常用否定式，表示“直到…才”Not
8、until句型与强调句型结合Ididn’tgotosleepuntilhecameback.与倒装句式结合ItwasnotuntilhecamebackthatIwenttosleep.NotuntilhecamebackdidIgotosleep.二地点状语从句(where,everywhere,anywhere)Wherethereisaw
