资源描述：
《高中英语语法专项复习之状语从句.ppt》由会员上传分享，免费在线阅读，更多相关内容在PPT专区-天天文库。
1、高中英语语法专项复习之状语从句定义：在复合句中由从句表示的状语称作状语从句，它可以用来修饰谓语（包括非谓语动词）、定语或状语，或是整个句子类别时间状语从句地点状语从句原因状语从句目的状语从句结果状语从句条件状语从句方式状语从句比较状语从句让步状语从句1.时间状语从句1>When：意为“当…时”表示主句和从句的动作同时或先后发生，从句的谓语动词可延续也可非延续Ifeelveryhappywhenyoucometovisitus.Whenyouarecrossingthestreet,becarefulHewasworkinghardatthetablewhenIw
2、entin.IworkedforaforeigncompanywhenIwasinShanghai.2>while意为“与…同时，在…期间，而”从句多用延续性动词或表示状态的动词Theyrushedinwhilewewerediscussingtheproblems.FatherwascleaningthecarwhileIwasplayinggames.3>as意为“一边…一边，随着…”可表示某事一发生，另一件事立刻发生或在在某事发生的过程中另一件事发生也可表示两件事同时发生Thefirefightersrushedintothehouseasthefireb
3、rokeout.Justashewasspeaking,therewasaloudexplosion.Hesmiledashepassed.4>before意为”在…之前”表示主句的动作在从句之间发生.Wecleanedtheroombeforeweleft.Hehadbeenacoolbeforehewenttocollege.Afteryouuseplasticbags,youmustn’tthrowthemabout.Hecalledmeafterhehadfinishedhiswork.6>since意为“自从…以来”之意主句从用现在完成时，从句常用一般
4、过去时Wehaven’tseeneachothersinceweparted.Itis/hasbeentwoyearssinceshegraduatedfromtheschool.HehasgonetoAmericasincehewasill.HehasgonetoAmericasincehefellinillness.7>until/till意为“直到…时候”之意，表示主句动作发生于从句动作之前。从句的谓语动词若是延续性动词主句多用肯定形式；非延续性动词时则用否定形式IwillwaithereuntilhecomesHedidn’tgotobeduntilhe
5、finishedhishomework.Notuntilallthefishhaddieddidthefarmersrealizehowseriousthepollutionwas.8>assoonas意为“一…就…之意，表示从句的动作一发生，主句的动作立即发生IwillinformyouofthenewassoonasIhearofit.Assoonashesawhismother,heburstintotears.拓展immediately,instantly,directly,themoment,theminute,thetime,thehour,thei
6、nstant9>once意为“一旦…就…”之意，暗含条件意味Onceyoubeginit,youshouldkeepittotheend.Physicsiseasytolearnonceyouunderstandtherules.10>名词短语：bythetime,eachtime,everytime,nexttime,anytime，thefirsttimeIthoughthernicethefirsttimeImether.Bythetimeyouarrived,thelecturehadalreadyended.11>nosooner…than…,hard
7、ly/scarcely…when…从句用一般过去时，主句用过去完成时。当短语位于句首时应部分倒装NosoonerhadIbeguntotalkthanherangoffHardlyhadItoldhimmynamewhenhestoppedlistening.2.地点状语从句Welivewheretheroadcrossestheriver.Makemarkswhereveryouhavequestions.Wesatdownwheretherewasanicelake.3.原因状语从句Hewaslaidoffbecausehedidn’ttakehisjobs
8、eriously.Sin
