原因状语从句和目的状语从句

原因状语从句第一页，共15页。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。第二页，共15页。I’llhavetohavemywatchreplacedbecausethereissomethingwrongwiththealarm.第三页，共15页。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双方都知道第四页，共15页。Theybumpedheroff________sheknewtoomuch.因为她知道太多，所以他们把她干掉了。_____youarefreetoday,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

第五页，共15页。（1）回答why，只能用because。

A：Whycan’tIgo?B：_______youaretooyoung.Because第六页，共15页。（2)不能将because,since,as等与so连用。2.________heisill,______hecannotcome.

A.Because,/B.Because,soC.Though,butD.Though,/A第七页，共15页。because和becauseofbecause+从句becauseof+名词短语他因病不能来。Hecan’tcomebecauseheisill.Hecan’tcomebecauseofhisillness.第八页，共15页。Readandcombine.Iboughtthehousesimply.Itislarge.→Iboughtthehousesimplybecauseitislarge.第九页，共15页。Languageinuse1.Everybodystaysunderthetree.

Itisveryhot.→Asitisveryhot,everybodystaysunderthetree.第十页，共15页。Languageinuse2.Theboycouldn’tdrawmoneyfromtheATM.

Heforgotthepin.→Theboycouldn’tdrawmoneyfromtheATMbecauseheforgotthepin.第十一页，共15页。Languageinuse3.Iwillexplainagain.Youdonotunderstand.→

Since

youdonotunderstand,Iwillexplainagain.第十二页，共15页。目的状语从句第十三页，共15页。引导词sothat，inorderthat等“以便”第十四页，共15页。Ilenthim$50inorder

that

hemightgoforaholiday.

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。Hegotupearlysothathe