非谓语复习专题：状语从句的省略与高考题

状语从句的省略与非谓语动词,在英语学习过程中，我们经常遇到状语从句中的省略用法，它是一种简洁、精练、地道的文字表达形式，也是值得关注的一个高考考点。状语从句的省略规则如果主句和从句的主语一致,且谓语包含系动词be的某种形式，那么可以将从句的主语及动词be省略。省略结构中非谓语的使用是高考的热点。,一、when,while,until引导的时间状语从句【经典例句】1.When(itis)takenaccordingtothedirections，thedrughasfewersideeffects.2.Dobecarefulwhen（youare）crossingthestreet.3.Dontcomeinuntil(youare)askedto.【高考链接】1.(2013浙江卷)Therearesomehealthproblemsthat,when_intime,canbecomebiggeroneslateron.A.nottreatedB.notbeingtreatedC.nottobetreatedD.nothavebeentreated,2.(2013福建卷)Anyone,once_positiveforH7N9fluvirus,willreceivefreemedicaltreatmentfromourgovernment.A.tobetestedB.beingtestedC.testedD.totest3.(2012安徽卷)When_forhisviewsabouthisteachingjob,Philipsaidhefounditveryinterestingandrewarding.A.askingB.askedC.havingaskedD.tobeasked,4.(12全国I)Filmhasamuchshorterhistory,especiallywhen_suchartformsasmusicandpainting.havingcomparedtoB.comparingtoC.comparetoD.comparedto5.(06浙江)When_differentcultures,weoftenpayattentiononlytothedifferenceswithoutnoticingthemanysimilarities.A.comparedB.beingcomparedC.comparingD.havingcompared,6.(2004全国IV)Itshamesmetosayit,butItoldaliewhen_atthemeetingbymyboss.A.questioningB.havingquestioningC.questionedD.tobequestioned7.(2004全国II)Whenfirst_tothemarket,theseproductsenjoyedgreatsuccess.A.introducingB.introducedC.introduceD.beingintroduced,二、if,unless,once引导的条件状语从句。【经典例句】1.If（itis）properlytreated,wastewilldonoharmtotheenvironment.2.Illnotgotothepartyunless（Iam）invited.Once（youare）caughtstealinginasupermarket,youwillbepunished.,1.(13江西)If_tolookafterluggageforsomeoneelse,informthepoliceatonce.A.askedB.toaskC.askingD.havingasked,youinformthepoliceatonce,=If(youare)askedtolookafter,【高考链接】,2.(2009湖南)Everyeveningafterdinner,ifnot_fromwork,Iwillspendsometimewalkingmydog.A.beingtiredB.tiringC.tiredD.tobetired3.(2007四川)Theflowershisfriendgavehimwilldieunless_everyday.A.wateredB.wateringC.waterD.towater,三、though,although,evenif,eventhough,however等引导的让步状语从句。【经典例句】1.Evenif(Iam)invitedto,Iwontgotosuchabadlecture.2.Though/Although（hewas）blamedforhismistake,theboydidntseemtobeangry.【高考链接】1.(2010全国)Though_toseeus,theprofessorgaveusawarmwelcome.A.surprisingB.assurprisedC.surprisedDbeingsurprised,2.(2006广东)Nomatterhowfrequently_,theworksofBeetho