资源描述：
《微课2状语从句重点难点归纳课件》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、RevisionoftheAdverbialClauses状语从句望城一中张敏双状语从句中部分连词的用法比较when,while,as,before,until,till,before,where,wherever,whoever,等考点与难点归纳连接词when的用法小结when可用来引导时间状语从句，意为“当……的时候”从句的谓语动词可以是延续的，也可以是短暂的。Whenthefilmended,theywentback.WhenIlivedthere,IusedtogototheseashoreonSundays.2.When常用于下列句式
2、：意为“就在那时”。如：…wasdoingsomethingwhen……wasabouttodosomethingwhen……wasonthepointofdoingsth.when……haddone…when…3.when可以表“既然”，如：HowcanIhelpthemtounderstandwhentheywon’tlistentome?注意同一个从属连词的多义性：问题2:6.ThecostoflivinginGlasgowisamongthelowestinBritain,______thequalityoflifeisprobably
3、oneofthehighest.A.sinceB.whenC.asD.while7.______Iacceptthatheisnotperfect,Idoactuallyliketheperson.A.WhileB.SinceC.BeforeD.Unless8.________itistruethatastudent’smostimportantgoalistodowellinhisorherstudies,itdoesn’tneedtobetheonlygoal.AwhenBAsCWhileDBefore9.Marymadecoffeeher
4、guestswerefinishingtheirmeal.A.sothatB.althoughC.whileD.asifDACC1.while可用来引导时间状语，意为“当……的时候”；引导的动作必须是持续性的，如：Pleasedon’ttalksoloudwhileothersareworking.2.while作为并列连词，意为“而，却”，表示对比。JanewasdressedinbrownwhileMarywasdressedinblue.3.while也可用来引导让步状语，意为“尽管，虽然”；可表示尽管，相当于althoughWhileI
5、admitthattheproblemsaredifficult,Idon’tagreethattheycan’tbesolved.4趁…的情况赶紧做,否则来不及了Strikewhiletheironishot.连接词while的用法小结1.as可用来引导时间状语，意为“一边…一边”；随着Shesangasshewalkedhomealltheway.(一边…一边）Shewasdoingherhomeworkasshewaslisteningtothemusic.Asshegrewolder,shebecamemorebeautiful.（随着
6、）Asthedaywenton,theweathergotworse.2.as也可用来引导原因状语从句意为“因为”；Assheisfreetoday,shewouldliketodosomeshopping.（因为）3.as还可用来引导让步状语从句（通常用倒装结构）意为“尽管”。Tiredashewas,herefusedtotakearest.（尽管）Hardasheworked,hecan’tworkouttheproblem.Childasheis,heknowsalot.连接词as的用法小结连接词when,while,as的用法区别：w
7、hen,while,as这三个连词都可表示“当……的时候”，使用时应注意：1)when可表示一个时间点，也可表示一个时间段。Whenhecamein,wewerehavingsupper.Whenwewerehavingsupper,thelightsuddenlywentout.2)while则只表示一个时间段。它所引导的时间状语从句中的时态常用进行时态。When/Whilehewaseatinghisbreakfast,heheardthedoorbellring.WhilehewaswatchingTV,theboyfellasleep.
8、3)as则强调主句和从句的动作在同一时间进行;也可表示“随着……”，。Shesangasshewalkedalong.Astheelectionapp
