because of 用在句首或句子后面,表示原因.例如：
It was all because of your necklace, your beautiful necklace.
那全是你的項鏈,你那條美麗的項鏈.
Because of the heavy rain, the sports meet has been put off.
因為大雨,運動會已推遲.
I came late because of the heavy rain.
由于交通阻塞我來晚了.
They are here because of us.
他們是為了我們才來到這里.
He walked slowly because of his bad leg.
他走得慢是因為腿有毛病.
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其他表示原因的詞
1. for: 因為；由于某事物 多用于表示內(nèi)在的、心理的原因.例如：
He didn’t answer for fear of hurting her feelings.
他沒回答是怕傷她的感情.
I couldn’t speak for laughing.
我笑得說不出話來.
They sang and danced for joy
他們高興得又唱又跳.
They will reward you for your help.
你幫了他們, 他們會獎賞你的.
常見的短語還有：praise sb for..因…而受到稱贊; be sorry for.. 因…而表示歉意; be famous/well-known for.. 因…而聞名; pay for.. . 因…而付款；be punished for…因…而受到懲罰, excuse sb for .. . 因…而請求寬恕/饒恕,apologize to sb for…因…而道歉/認錯,be honored for因…而受到尊敬
2. at: 多用來表示感情上的原因,常和表示一定感情的詞連用.例如：
I’m much pleased at your arrival.
你來了我非常高興
He is angry at being delayed.
他因被耽擱而生氣.
People wondered at his skill,
人們驚嘆他的技藝.
常見的短語還有：be afraid at, be surprised at, be happy at, be frightened at, be sad at, be in deep sorrow at, at sight of etc.
3. on/upon: (表示為某事物的基礎、根據(jù)或理由)由于,因為 所表示的原因與條件直接相關.例如：
The story is based on the fact.
這個故事以事實為依據(jù).
On your advice, I applied for the job.
我聽從你的建議申請了這份工作.
He called to see me on business.
他因公事來看我.
He came on your invitation.
應你的邀請他來了.
4. with：因為或由于（某事物） 多用來表示由外界影響到身心的原因.例如：
Her fingers were red with cold.
她的手指凍得發(fā)紅了.
He was trembling with fear.
他嚇得發(fā)抖.
The old man was bent with age.
這老人年齡大了,腰彎了.
His face turned red with anger.
他因生氣而臉紅.
5. by 因（某事物）所致；由于；憑借 通常用來表示由什么方式產(chǎn)生的.例如：
I met her quite by chance/accident.
我遇見她完全是偶然的.
He got ill by drinking too much yesterday.
昨天由于喝得太多,他病了.
Dr Manette had been mentally disturbed by his long years alone in prison and his hair had turned white.
由于多年被關在老房里,曼奈特醫(yī)生精神失常了,頭發(fā)也白了.
6. through 表示消極的、偶然的、意外的原因和理由.例如：
On reading it, he found that a servant of the family in France had been put in prison, through no fault of his own.
看了信,他得知他法國家中的一個仆人無辜地被關進了監(jiān)獄.
He lost his job through his carelessness.
由于粗心大意,他丟去了他的工作.
The accident happened through no fault of yours.
這事故的發(fā)生不能怪你.
We missed the plane through being held up on the motorway.
由于高速公路上交通阻塞,我們誤了班機.
7. from 表示自然的或直接的原因.例如：
I’m tired from work.
我因工作而累了.
Do you often suffer from headache?
你常頭疼嗎?
He feels weak from lack of sleep.
他由于睡眠不足而虛弱.
The old man died from the cold in the winter.
那位老人因為冬天的寒冷而死.
注意：die from表示“因…而死亡”的意思,常常指除了疾病、情感等以外的原因造成的死亡.其后常常跟pollution, overwork, accident, wound, drinking too much, habit, smoking等一類表示外部原因或災禍方面的名詞.但有時也可以用來指由于疾病的原因而造成的死亡,只是die of 比die from更常見.例如：
He died of/from cancer.
他死于癌癥.
8． in 因為,由于 例如：
He cried in pain.
他因疼痛而哭了.
I called in the hope of finding her at home.
我希望她能在家才給他打電話.
9. of 常用來表示情緒上的原因,因此常常與glad, fond, proud, shamed, tired 同時等形容詞連用.例如：
We’re proud of being Chinese.
我們因是中國人而感到驕傲.
Don’t get tired of life; you are still young.
不要對生活厭倦；你還年輕.
He is very fond of playing basketball.
他非常喜歡打籃球.
The beggar died of hunger and cold.
那乞丐因饑餓和寒冷而死.
注意：die of常常指由于疾病、情感等原因造成的死亡.其意思為“因…而死”,其后常跟fever, illness, hunger, thirst, anger, despair, sadness, disappointment, grief等一類表示內(nèi)部原因或情感方面的名詞.
還有due to, owing to, thanks to, because of四個成語介詞表示“因為”、“由于”,但他們在用法上有區(qū)別.
1. because of 用在句首或句子后面,表示原因.例如：
It was all because of your necklace, your beautiful necklace.
那全是你的項鏈,你那條美麗的項鏈.
Because of the heavy rain, the sports meet has been put off.
因為大雨,運動會已推遲.
I came late because of the heavy rain.
由于交通阻塞我來晚了.
They are here because of us.
他們是為了我們才來到這里.
He walked slowly because of his bad leg.
他走得慢是因為腿有毛病.
2. due to sth/sb: 由某人[某事物]引起的；由于某人[某事物] 例如：
The team’s success was largely due to her efforts.
該隊的成功在很大程度上是由于她的努力.
Her failure in the speech contest was due to her nervousness.
她在演講比賽中失利,原因是她太緊張了.
They arrived late due to the storm.
他們由于風暴而來遲.
3. owing to: 由于；因為
Owing to the rain, the meeting has to be put off.
會議因雨而推遲了
I couldn’t attend the meeting owing to illness.
我因病不能出席會議.
owing to與 due to的用法基本相同,但與because of 的用法有些差別.一般說來,owing to 只
引導一個修飾全句的狀語,而后because of引導的狀語又可修飾句子中的一部分.例如：
You mustn’t punish the child because of such a small mistake.
你千萬不要因為這樣一個小錯誤而懲罰孩子.
4. thanks to 由于,因為；幸虧,多虧 常位于句首,表感謝或諷刺意味.例如：
Thanks to your help, we finished the work head of time.
多虧你的幫助,我們提前完成了任務.
Thanks to the bad weather, the match had been put off.
多虧這倒霉的天氣,比賽推遲了.