1as引导让步状语从句的倒装形式as引导的这种让步状语从句语气比较强,语体正规,经常用于书面语言,意为“尽管,虽然”。从句需要进行倒装。其倒装构成形式见下表。■使用as引导让步状语从句时,还应注意以下几点:1.这类让步状语从句一般应置于主句之前,但有时也可放在主句之后或插入到主句之中。e.g.Hewoulddoit,forbiddenashewas.Thebook,masterpieceasitis,isfarfrompopular.2.这类让步状语从句中的as有时也可以换用成though;如果表语是名词时还可以用that来替代。e.g.Disabledthough(=as)heis,hetrieshisbesttoservethepeople.Loveroftownsthat(=as)Iam,IrealizethatIownagreatdebttomyearlycountrylife.Patientthough(=as)hewas,hewasunwillingtowaitthreehours.3.有时as表示原因时也可使用倒装结构,这时应注意as表示原因与表示让步的区别,其辨别方法主要是根据句子的意义。基本构成形式例句有关说明表语+as+主语+系动词1.Youngasheis,heisequaltothetask.2.Crowdedastherestaurantwas,theytriedtofindatable.3.Childashewas,heknewwhatwastherightthingtodo.4.Difficultaswasthework,theyfinisheditintime.1.表语经常是由形容词、分词、或名词充当;2.名词用作表语时,其前不能加用冠词;3.从句的主语是名词时,其主谓语序要倒装。状语+as+主语+谓语动词1.Hardashestudied,hedidnotgetgoodmarksintheexam.2.Earlyaswegotthere,ourteacherwastherebeforeus.这一结构中的谓语动词一般是行为动词,即可以是及物动词(带宾语)也可以是不及物动词。动词+as+主语+……1.Searchastheywould,theycouldfindnothinginthehouse.2.Tryashemay,hewillfailintheexamination.3.Dieashedid,hisinspirationlivedon.4.LosemoneyasIdid,Igotalotofexperience.5.Failashedid,hewouldnevergiveup.在这一结构中,主语后面一般加上情态动词may,might,will,would,can,could等,句首的动词应该使用原形。如果从句中没有情态动词,那么,应在从句的主语之后(根据时态和数要求)加上助动词do,does,或did。在这一结构中,放在句首的动词如果是及物动词,那么,这个动词连同它的宾语一起放到as之前。分词+as+主语+助动词1.Standingasitdoesatthetopofthehill,Thetempleiswellpreserved.2.Living,asIdo,soremotefromtown,Ihavemanyvistors.3.Hiddenasitisbythetrees,thetowercanscarcelybeseen.在这一结构中,若现在分词提前时,主语之后根据具体的时态和数需放置一个助动词(did,do,does);若过去分词提前时,主语之后需放置be动词(am,is,are,was,were)。2e.g.Busyassheis,shecannotattendthemeeting.(原因)Busyassheis,sheworkshardatEnglish.(让步)Fastasheread,hefinishedthebookintime.(原因)Fastasheread,hecouldnotfinishthebookintime.(让步)4.注意下列几种说法,意义基本相同:Richas(though)heis,Idonotenvyhim.(Al)thoughheisrich,Idonotenvyhim.Howeverrichhemaybe,Idonotenvyhim.Nomatterhowrichheis,Idonotenvyhim.Idonotenvyhim,eventhoughheisrich.