因果状语从句

原因状语从句Adverbialclauseofcause/reason原因状语从句常用的从属连词和短语有：because,as,since,nowthat,forthereasonthat...例如：Shegotthejobbecauseshewasthebestone.

Asshehasnocar,shehastocallataxi.

Sinceyouhavecome,youhadbetterstayhere.

Nowthatyouhavefinishedyourwork,youmayleavenow.Idon'tlikethegirlforthereasonthatsheistooselfish.Payattention:中文中有“因为……所以……”的结构，但英文中的because,as或者since,不能和so同时使用。Becauseitwasrainingheavily,sotheydidn'tgoouttoplay.(错误)——>>Becauseitwasrainingheavily,theydidn'tgoouttoplay.(正确)——>>Itwasrainingheavily,sotheydidn'tgoouttoplay.(正确)Becauseshewascareless,soshefailed.(错误)——>>Shefailedbecauseshewascareless.(正确)——>>Shewascarelesssoshefailed.(正确)辨析1."because“引导的原因状语从句可以放在句首，"for"不可以。2."for"表示原因语气较弱，有补充说明的含义。3.“because"是对事实作出的解释，但"for"则为说话者的推断和预测提供理由。4."because"语气最强，"since"其次，"as"稍弱。结果状语从句结果状语从句常用的从属连词有：sothat,so...that,such...that等例句：Heslammedthedoor,sothatheawokeeveryone.IalwayswritesocarefullythatImakemymeaningclear.Shegotsuchafrightthatshelosthersenses.so...that和such...that的比较so后面跟形容词或副词，such后面跟名词"such+a+形容词+可数名词单数”——>>"so+形容词+a+可数名词单数"如果"such"后面的名词是可数名词复数或不可数名词，不能转换为"so"结构。"so"还可以与"many,much,little,few"构成固定搭配，此时不能用"such"结构。so...that和sothat的比较so...that引导结果状语从句，sothat除了引导结果状语从句，还可以引导目的状语从句。exercise1：()1.It‘sgoingtorain________theskyhasbecomedarker.A.forB.sinceC.becauseD.as()2.Ididn'tgotoschoolyesterday________Iwasill.A.butB.becauseC.evenifD.though把从句简化为becauseof结构：1.Helayinbedbecausehehadcaughtabadcold.2.Hecouldn'twalkbecausehislegwasbroken.3.Icamebackbecauseitwasraining.4.Theystayedinbecausetheweatherwasbad.ABHelayinbedbecauseofabadcold.Hecouldn'twalkbecauseof

hisbrokenleg.Icamebackbecaueoftherain.Theystayedinbecauseof

thebadweather.exercise2:一．根据句意，用so或such填空。1.Theboyis_____youngthathecan'tgotoschool.2.Hetoldus_______afunnystorythatwealllaughed.3.Hehas____fewbookstoreadthathehastoborrowsomebooksfromthelibrary.4.Itis_____atallbuildingthatIcan'tseeitstop.5.Thegirlshad_____highafeverthatshenearlydiedlastweek.6.Theyare_____cleverchildrenthatalltheteacherslovethem.sosuchsosuchsosuch()1.Theteachertoldus_______funnystory________wealllaughed.

A.sucha,thatB.such,thatC.soa,thatD.so,that()2.Theheadmasterspokeslowly_________wecouldunderstandhim.

A.suchthatB.becauseC.sothatD.when