原因状语从句和目的状语从句

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1、原因状语从句原因状语Afraidofbeinglate,theycamebytaxi.因为怕迟到，所以他们坐出租车来的。Thankyouforremindingme.谢谢你提醒我。I’llhavetohavemywatchreplacedbecausethereissomethingwrongwiththealarm.引导词Because，since，as等语气强弱because>since>asbecause不知道原因since原因明显，已知as双方都知道Theybumpedheroff________sheknewtoomuch.因为她知道太多，所以他们把她干掉了。_____y

2、ouarefreetoday,youhadbetterhelpmewithmymathematics.既然今天你休息，你最好帮我补习数学。____itisraining,you’dbettertakeataxi.因为在下雨，你最好乘出租汽车。becauseSinceAs（1）回答why，只能用because。A：Whycan’tIgo?B：_______youaretooyoung.Because（2)不能将because,since,as等与so连用。2.________heisill,______hecannotcome.A.Because,/B.Because,soC.Tho

3、ugh,butD.Though,/Abecause和becauseofbecause+从句becauseof+名词短语他因病不能来。Hecan’tcomebecauseheisill.Hecan’tcomebecauseofhisillness.Readandcombine.Iboughtthehousesimply.Itislarge.→Iboughtthehousesimplybecauseitislarge.Languageinuse1.Everybodystaysunderthetree.Itisveryhot.→Asitisveryhot,everybodystaysun

4、derthetree.Languageinuse2.Theboycouldn’tdrawmoneyfromtheATM.Heforgotthepin.→Theboycouldn’tdrawmoneyfromtheATMbecauseheforgotthepin.Languageinuse3.Iwillexplainagain.Youdonotunderstand.→Sinceyoudonotunderstand,Iwillexplainagain.目的状语从句引导词sothat，inorderthat等“以便”Ilenthim$50inorderthathemightgoforah

5、oliday.我借给他50美元，以便他能去度假。他早起以便他能够赶上首班车。Hegotupearlysothathecouldcatchthefirstbus.谓语前常含有may,might,can,could,should,would等情态动词。