表示“因为”的词组有很多。because of, due to ,thanks to ,owing to ,asa result of ,on account of 等都可以用来表示原因，但其用法却各有不同。下面就其用法分述如下：1．because of意为“因为，由于”，普通用语，比其他短语更口语化,强调因果关系；构成的短语在句子中通常作状语，一般不作表语用；后面可接名词、代词、分词或what引导的名词性从句等。Eg. He is likely to miss the US Openbecause of his back injury.他因为背部有伤可能缺席美国公开赛。（置于句后作状语）Because of my bad leg ,I couldn’t walk sofast as the others.由于我的腿坏了，我不能像其他人走得那么快。（置于句首做状语，但用逗号与其他部分分开）Because of his wife's being there,I saidnothing about it.因为他妻子在场，我对此事只字未提。(接-ing分词短语)He realized that she was crying because ofwhat he had said.他意识到她在哭是因为他说的那些话。(接what从句)We must not get discouraged because of sucha minor setback．我们决不可因为这样一个小小的挫折而灰心丧气。2. due to“由于，因…造成”，强调造成后果的原因，在句中作表语、状语和定语。作表语和状语时与owing to同义，作状语时，一般不与其他成分隔开（此时不用于句首）。规范英语仅将 due to 用于动词be之后作表语，但普遍认为可将due to看作是owing to的同义词。Eg. Your failure is due to negligence.你的失败是由于疏忽所造成的。A part of the energy is wasted in machinesdue to friction.一部分能量由于摩擦而消耗在机器内。That Shelley became a poet may have beendue to his mother’s influence.雪莱成为诗人可能是由于受母亲的影响。Accidents due to driving at high speed werevery common that weekend.在那个周末因高速驾驶造成的交通事故很多。Joe's application to the University was notaccepted due to his failing English.乔因英语不及格申报那所大学没被录取。This accident was due to（owing to）his carelessdriving．这次车祸是由于他开车疏忽大意造成的。He arrived late due to（owing to）the storm．由于暴风雨他来晚了。Mistakes due to carelessness may haveserious consequences．由于疏忽大意造成的错误可能带来严重的后果。注意：due to除可表示原因外，还有“应给于，应属于”的意思。Eg.Our grateful thanks are due to you.向你表示我们衷心的感谢3. on account of 当“因为”讲，后面常接名词。on account of与because of，owing to同义，但语气较为正式。可作状语、表语，不作定语。如：He could not come on account of his illness．他因病不能前来。That was on account of lack of exercise．那是由于缺乏锻炼。We delayed our departure on account of thebad weather.由于天气不好，我们将起程时间推迟了。I’m thinking of goingdown to Qingdao for a fortnight ,on account of my health.由于身体方面的原因，我正考虑到青岛休养两个星期。注意：On my/your accoun 为了你（我）（的缘故）On this/that account由于这个（那个）缘故She thinks you’re leavingAunt Ketty on her account.她以为你是为了她才打算离开凯蒂阿姨的。On this account, we should be cautious.因为这个缘故我们应该谨慎。He is angry on that account.由于那个缘故他生气了。4.owing to 与because of一样引出的介词短语，也强调因果关系，在句中作状语，做状语时，习惯上用逗号和句子其他部分分开。注意：作状语时修饰整个句子，可在句首或句末，用逗号隔开。owing to 除作状语外，也可作表语，但 because of 不作表语。如：They decided to cancel the flight，owing to thestorm．由于这场暴风雨，他们决定取消这个航班。His death was owing to an accident．他死于一场事故。They decided to pospone the trip, owing tobad weather.由于天气不好他们决定推迟旅行。Owing to his careless driving, we had a badaccident.由于他驾驶疏忽，我们发生了次大车祸。=The accident was due to his carelessdriving.这次车祸是由于他的驾驶疏忽。 注意：owe vt.(债等); 应该向(某人)付出把...归功于(to); 认为...是靠...的力量; 由于感激; 感恩; 感谢I owe him ten dollars.我欠他10美元。He owes his success to his hard work.他认为自己取得成功是辛勤劳动的结果。I owe you for your help.我感谢你的帮助。5.thanks to “由于或因为某人（某事）”，通常用于好的方面，多用于表达正面意思，相当于感谢，有时可作“反语）。在句中作状语和表语。引导的介词短语可置于句首或句末。Thanks to your advice，much troublewas saved．The play succeeded thanks to your timelyhelp.由于你的及时帮助，那出戏才成功。It was thanks to
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