2024届高三英语二轮复习 状语从句课件

状语从句状语从句1.状语从句位置灵活，可以位于句首，句中或句尾。2.置于句首，通常与主句之间有逗号；在句中，前后有逗号与主句隔开；句尾，逗号可有可无。3.比较，方式，结果状语从句通常位于主句之后。4.状从由连词引导，也可由一些起连词作用的词或短语引导。as+时间状语从句主句+themoment+时间状语从句Isawhim状语从句时间:when,while,as,whenever,before,after,till/until,since,assoonas,theinstant,theminute,themoment,immediately,directly,instantly,nosooner…than…,hardly/scarcely…when…,

nexttime,thelasttime,everytime,eachtime,once（一旦）

原因:because,as,since,nowthat（既然）,consideringthat（考虑到，鉴于）条件:if,unless,as/solongas,incase（万一）,supposing（假设）,provided/providing（假如）,providedthat,onconditionthat（假如，如果）

让步:although,though,as,while,evenif,eventhough,疑问词+ever，nomatter+疑问词，whether…or…，whether…ornot目的:sothat,inorderthat结果：so/such…that…,sothat地点:where,wherever,anywhere,everywhere方式:as,asif,asthough比较:than,as…as…,notas/so…as…连词when主句：haddone,was/weredoing,was/wereabouttodo（正要。。。）,was/wereonthepointofdoingsth（正要。。。）从句：when+一般过去时句子1.IwasdrivingdowntoLondonwhenIsuddenlyfoundthatIwasonthewrongroad.2.Shehadjustfinishedherhomeworkwhenhermotheraskedhertopracticeplayingthepiano.3.Theboywasonthepointofjumpingoffthebridgewhensomeonecried,“Stop!”4.Shewasjustabouttosaysomethingmorewhenshenoticedthattheteacherwasapproaching.

wheneverconj.无论何时，每当，每次Whenevershecomes,shebringsmeabunchofflowers.Ialsowatertheflowersintheyardandtidyupmyownbedroomwhenever(itis)necessary.Theroofleakswheneveritrains.while时间状从：在。。。期间，当。。。时候让步状从：虽然，尽管（用于句首）并列连词：然而1.IwoulddosomereadingwhileIwaswaitingforthetrain.2.Whileemotionalintelligenceispopularamongthepublic,peoplehavesomemisunderstandingaboutit.3.Adoctorcanuseittotreatpatients,whileacheatermayuseittofindpotentialvictims.asconj.表时间：当。。。时，随着。。。Iloveyoumoreandmoreeachdayastimegoesby.表原因：因为，由于Shemayneedsomehelpasshe'snew.表方式：正如。。。，按照。。。,像。。。那样Dotheexperimentastheteacherdemonstrates（示范，演示）.表让步：虽然，尽管

（倒装）Happyastheywere,therewassomethingmissing.Childasheis,heknowsalot.表比较：像。。。一样，如同。。。It’snotashardasIthought.beforeconj.在。。。之前Wehavetotidyupthelivingroombeforemomcomesback.IknewnothingaboutPekingOperabeforeIcametoChina.2.主句含有时间段，before译为“（多久）才。。。”It

may

be

years

before

youcantreatpatients.Itwillbefourdaysbeforetheycomeback.3.主句含有时间段，且是否定句，before译为“（没过多久）就。。。”Itwasn’tlongbeforewefoundoutthatshehadliedtous.Itwon’tbelongbeforeweknowtheresultoftheexperiment.4.从句谓语含有can/could,译为“还没来得及就（发生主句的动作）”He

left

before

I

could

say

thank

you.LilyhungupthephonebeforeIcouldexplain.5.beforesbknowit不知不觉，某人还没意识到（就。。。）Theywillleavehomeandstarttheirownfamiliesbeforeyouknowit.till和until，“直到”，till不用于句首1.Ifyoudon’tunderstandsomething,youmayresearch,studyandtalktootherpeopleuntil/tillyoufigureitout.2.Iworkedinarestauranttill/untilIwas25.till和until肯定句：主句谓语为延续性动词，主句的动作持续到till/until所表示的时间结束Itwasapaperfactoryuntil1997,whenthelocalpeoplerealizeditwasasourceofpollution.Shedidn’tstartthelessonuntilthepupilssettleddown.倒装和强调Itis/was+强调部分+that+其他部分Notuntilthepupilssettleddowndidshestartthelesson.否定句：主句动作为非延续性动词，表示：直到。。。才。。。“，即主句的动作到till/until所表示的时间才开始Iwon'tstopuntilyoupromisetobuymeanicecream.表示“一。。。就。。。”的连词引导状语从句assoonas,themoment,theminute,theinstant,immediately,directly,instantly，onceIstarttostudydirectlyIfinishmybreakfast.ThemomentIheardthenews,Ihurriedtothespot（现场）.

AssoonasIreachCanada,Iwillringyouup.Irecognizedherinstantlyshecameintotheroom.OnceyouareinXi’an,youwillknowhowattractivethecityis.Theboyranofftheminutehesawtheowneroftheorchard（果园）.表示“刚一。。。就。。。”的连词引导状语从句2.hardly…when…,scarcely…when…,nosooner…than…结构中，主句用过去完成时，than或when引导的从句用一般过去时Ihadhardlygottotheofficewhenmywifephonedmetogobackhomeatonce.HardlyhadIgottotheofficewhen....HehadnosoonerarrivedinAfghanistanthanhewaskidnapped（绑架）.倒装句：hardly,scarcely或nosooner放句首，主句部分倒装everytime,eachtime（每一次。。。的时候）,nexttime,thefirsttime,bythetime（到。。。的时候）引导的时间状语从句Bythetimeyougettherethemeetingwillbeover.IfeelrelaxedeverytimeIhearthatsong.Hedidn’tperformedwellthefirsttimehetooktheexam.辨析：forthefirsttime是介词短语，在句中作时间状语Forthefirsttimeinmylife,IfeltIwasinchargeofmylife.Hewasnervousforthefirsttimehemethisfather-in-law.Although,though,as和while引导让步状语从句although引导的从句不倒装though引导的从句可用倒装语序，也可不倒装as引导让步状语从句必须用倒装语序：表语/状语/动原+as/though/+主语+其他while引导让步状语从句，位于句首Hotas/thoughthenightairwas,wesleptdeeplybecauseweweresotiredafterthelongjourney.

Whileitmaytastegood,it’snotgoodforyourhealth．疑问词+ever，nomatter+疑问词引导让步状语从句1.________________(不管我要什么），healwaysbuysitforme.2.________________(无论你是谁），youhavetowearamaskifyouwanttoenterthemall.3.Howeverhardshetried,nothingseemedtowork.

4.Shehasthewindowopen,howevercolditisoutside.

5.HowevercarefullyIexplained,shestilldidn'tunderstand.

However/nomatterhow+副词、形容词+主语+谓语+其他方式状语从句asif或asthough引导的从句与事实相反时，通常用虚拟语气：与现在事实相反，从句用一般过去时(be一般用were)；与过去事实相反，从句用过去完成时；与将来事实相反，从句谓语用“would/could/might+动词原形”。从句内容与事实相符或有很大可能成为事实时，则用陈述句语气。（大本128页）Theytreatherasthoughsheweretheirdaughter.

条件状语从句：if,unless（除非，如果不/没）1.Youcan’tleavetheschool_unless_____youhaveyourheadteacher’snote.2.Iwillletyouleave______youhaveyourheadteachersnote.so/such...that...，that引导结果状语从句so+adj./adv.so+adj.+a/an+可数名词单数somany/much/few/little+名词（不可数，可数复）such+a/an+adj.+可数名词单数such+adj.+不可数名词/可数名词复数这是如此有益的一次活动，以至于我们希望将来会有更多这样的活动。西安是如此有魅力的一座城市以至于你一定会爱上它的。他吃了很多的状语从句的省略

While(youwere)walkingthedog,youwerecarelessanditgotlooseandwashitbyacar.省略的条件状语从句的的主语与主句的主语一致，或者是it状语从句谓语中含有be动词省略的形式省略从句的主语和be动词

WhiletheyarewatchingTV,childrendonotmerelyabsorbwordsandimages.Whenitisunderattack（受到攻击）,aleafyplantdoesn'tsitquietly.Therefore,IcanexplaintherelevantinformationaboutChinesepaintingifitisnecessary.1.When（既然）almosteveryone