欢迎来到天天文库
浏览记录
ID:52104225
大小:436.00 KB
页数:30页
时间:2020-03-31
《《英语因果连词》PPT课件.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、因果连词类别1表示原因1.for义为:因为,由于…的缘故;既然;鉴于…You'dbetterputonyoursweater,forit'srathercoldoutside.你最好把毛衣穿上,外边相当冷。Hefeltnofear,forhewasabraveman.他不感到害怕,因为他是个勇敢的人。Comforthimforheissad.去安慰他,因为他很悲伤。[比because较为正式,少用于口语中,用于提出证据或说明前面刚作的陈述]判断改错:(错)Forheisill,heisabsenttoday.(对)Heisabsenttod
2、ay,forheisill.for是并列连词,不能置于含两个并列分句的句子的句首,只能将其放在两个分句中间。比较since和forSince用来说明动作起始时间,for用来说明动作延续时间长度。Ihavelivedhereformorethantwentyyears.IhavelivedheresinceIwasborn..Myaunthasworkedinaclinicsince1949.Somenewoilfieldshavebeenopenedupsince1976.IhaveknownXiaoLisinceshewasalittle
3、girl.MybrotherhasbeenintheYouthLeaguefortwoyears.Ihavenotheardfrommyuncleforalongtime.注意:并非有for作为时间状语的句子都用现在完成时。Iworkedhereformorethantwentyyears.(我现在已不在这里工作。)Ihaveworkedhereformanyyears.(现在我仍在这里工作。)小窍门: 当现在完成时+一段时间,这一结构中,我们用下面的公式转化,很容易就能排除非延续动词在完成时中的误使。1)(对)TomhasstudiedR
4、ussianforthreeyears.=TombegantostudyRussianthreeyearsago,andisstillstudyingitnow.2)(错)Harryhasgotmarriedforsixyears.=Harrybegantogetmarriedsixyearsago,andisstillgettingmarriednow.显然,第二句不对,它应改为Harrygotmarriedsixyearsago.或Harryhasbeenmarriedforsixyears.2.because1.因为,由于:Thebo
5、ywasalwayslatebecauseittooksolongtogetdressed.这个男孩因花太长时间穿衣服总是迟到。Ican'tdoitnowbecauseIambusy.因为我正忙着,现在不能做此事。2.[用于引导一个名词从句,相当于that或thefactthat]…这一事实,…这一点原因,原因是:ThereasonIamhereisbecauseIwanttoaskforyourhelp.我之所以到这儿来是想寻求你的帮助。3.[用于省略句,表示暂不便说明详细理由]:Ithinkitwouldmakeherfeelbette
6、rbecause.我想它会使她觉得好受些。原因嘛,现在不说。BecauseofButinoverweightoverweightpeople,itcanlookyellowbecauseoffat.但是在超重的人中,因为脂肪它可能看起来是黄色的。Becauseofthis,yousometimescanusecontrailstopredicttheweather.因为原理,你有时候可以用这条轨迹来预测天气。Thereissomethingtothis—butnotbecauseofwhatishappeninginAmerica.有一点是
7、值得关注的,并且这一点与发生在美国的事情无关3since因为;既然:Sincethisisso,it'sbettertoacceptit.既来之,则安之。4.duetoThescientistsfoundthathalfofthe421deathswereclearlyduetocarbonmonoxidepoisoning.科学工作者发现在421个死难者中,半数显然是由于一氧化碳中毒。5.owingtoOnceoutofreachowingtotheblanketoficethatentombedthem,theseresourceslo
8、oktemptinglygrabbableasclimatechangeshrinkstheiceshelf.这些资源曾因为覆盖它们的冰层而显然遥不可及,但由于气候变化令冰架收缩
此文档下载收益归作者所有