一、时间状语从句：主要由when，whenever，after，before，as，(ever)since，once，assoonas，(not)until，while等连词引导典型例题：2.表示"一…就…"的结构,hardly/scarcely…when/before,nosooner…than和assoonas都可以表示"一…就…"的意思，例：Ihadhardly/scarcelygothomewhenitbegantorain.Ihadnosoonergothomethanitbegantorain.AssoonasIgothome,itbegantorain.注意：如果hardly,scarcely或nosooner置于句首，句子必须用倒装结构：Hardly/ScarcelyhadIgothomewhenitbegantorain.NosoonerhadIgothomethanitbegantorain2)Untilwhen疑问句中，until要放在句首。---Untilwhenareyoustaying?你呆到什么时候？---UntilnextMonday.呆到下周一。(3)Notuntil…在句首，主句用倒装。Notuntiltheearlyyearsofthe19thcenturydidmanknowwhatheatis.直到19世纪初，人类才知道热能是什么。NotuntilIbegantoworkdidIrealizehowmuchtimeIhadwasted.直到我开始工作，我才认识到了我已蹉跎了几多岁月。(4)Itisnotuntil…that…表示强调，“直到。。。才。。。”。五、结果状语从句：结果状语从句常由so…that或such…that引导，掌握这两个句型，首先要了解so和such与其后的词的搭配规律。1.其规律由so与such的不同词性决定。such是形容词，修饰名词或名词词组，so是副词，只能修饰形容词或副词。so还可与表示数量的形容词many,few,much,little连用，形成固定搭配。sofoolishsuchafoolsoniceaflowersuchaniceflowersomany/fewflowerssuchniceflowerssomuch/littlemoney.suchrapidprogresssomanypeoplesuchalotofpeople（somany已成固定搭配，alotof虽相当于many，但alotof为名词性的，只能用such搭配。）2.so…that与such…that之间的转换Theboyissoyoungthathecan'tgotoschool.====Heissuchayoungboythathecan'tgotoschool七、让步状语从句：让步状语从句通常由(even)though，although，nomatter，evenif，however，whatever等词引导注意：1).当有though,although时，后面的从句不能有but，但是though和yet可连用Althoughit'sraining,theyarestillworkinginthefield.虽然在下雨，但他们仍在地里干活。Heisveryold,buthestillworksveryhard.虽然他很老，但仍然努力地工作。Thoughthesorebehealed,yetascarmayremain.伤口虽愈合，但伤疤留下了。（谚语）典型例题:___sheisyoung,sheknowsquitealot.A.WhenB.HoweverC.AlthoughD.Unless答案：C。意为虽然她很年轻，却知道许多。5)"nomatter+疑问词"或"疑问词+后缀ever"表示“无论。。。”Nomatterwhathappened,hewouldnotmind.===Whateverhappened,hewouldnotmind.替换：nomatterwhat=whatevernomatterwho=whoevernomatterwhen=whenevernomatterwhere=wherevernomatterwhich=whichevernomatterhow=however注意：nomatter不能引导主语从句和宾语从句。（错）Nomatterwhatyousayisofnousenow.（对）Whateveryousayisofnousenow.你现在说什么也没用了。(Whateveryousay是主语从句)（错）Prisonershavetoeatnomatterwhatthey'regiven,（对）Prisonershavetoeatwhateverthey'regiven.囚犯们只能给什么吃什么。例如：Theycompletelyignorethesefactsasif(asthough)theyneverexisted.他们完全忽略了这些事实，就仿佛它不存在似的。（与事实相反，谓语用虚拟语气。）Helooksasif(asthough)hehadbeenhitbylighting.他那样子就像被雷击了似的。（与事实相反，谓语用虚拟语气。）Itlooksasiftheweathermaypickupverysoon.看来天气很快就会好起来。（实现的可能性较大，谓语用陈述语气。）说明：asif/asthough也可以引导一个分词短语、不定式短语或无动词短语，例如：Hestaredatmeasifseeingmeforfirsttime.他目不转睛地看着我，就像第一次看见我似的。Heclearedhisthroatasiftosaysomething.他清了清嗓子，像要说什么似的。Thewavesdashedontherocksasifinanger.波涛冲击着岩石，好像很愤怒。名校模拟试题汇编训练（10分钟）5.【2012届甘肃兰州一中三诊】14.–ShallwepayavisittotheGreatWalltomorrowmorning?--____itrains.A.IfB.UntilC.sinceD.Unless6.【2012届河北省唐山市三模】33．I’mwillingtohelp,Idonothavemuchtimeavailable.A．BecauseB．WhileC．WhenD．Since10.【2012届福建漳州市四地七校第四次联考】30.—Areyoustillworkinginthatcompany,Mary?—No,itistenmonths____Iworkedthere．A．afterB．thatC．beforeD．since11.【2012届辽宁省大连市二模】35．Itprovesthatbeingcreativemaybemoreimportantthanexperience______itcomestostartingyourownbusiness．A．whileB．asC．sinceD．when12.【2012届甘肃省西北师大附中高三诊断】15._________theInternetisbridgingthedistancebetweenpeople,itmayalsobreaksomefamiliesorcauseotherfamilyproblems.A.AsB.IfC.WhileD.Since
