一、名词
含义：原因;起因;理由;动机;缘故;(支持或为之奋斗的)事业，目标，思想;诉讼案
cause表示原因是一般指比较直接的原因，比较根本性原因，常常有cause and effect连用，表“原因和结果”；如：
According to the recent research, heavy coffee drinking and heart attack is not necessarily cause and effect.(02上海高考46题)
根据最近的研究，大量饮用咖啡和心脏病发作不一定是因果关系。
We should analyze the cause and effect of this event.
我们应该分析这场事变的因果。
Every thing that happens has a cause and effect.
事情发生了，就会有它的前因后果。
Does the study mean that cats will soon grasp the ins and outs of cause and effect?
这项研究是否意味着猫很快就会理解因果关系的详情?四级真题- 2018年 12月
Rather than merely asking about something they wanted to try, they tended to include both cause and effect in their question.
他们不是只问一些自己想尝试的事情,而是倾向于在问题中包括因与果。
六级真题- 2015年 12月
reason表示做某事的理由,可数名词；但是cause也可以表示“理由”，此时是不可数名词，当它们表示“理由”时，常常与for连用，如：
There is no cause/ reason for anxiety.
不必焦虑。
I believe we have /there is just cause(= a fair reason) for taking this action.
我相信采取这个行动是有很好的理由的。
Her triumph was a cause for celebration.
她的胜利是庆祝的理由。
Only a few people can find any cause for celebration
只有少数几个人能找到庆祝的理由。
The most important reason for coming to university is to work for a degree
上大学最重要的原因就是要拿个学位。
To an extent, that is the reason for the meeting.
在某种程度上，那就是召开这次会议的原因。
Detectives are so far at a loss to explain the reason for his death.
至今侦探仍茫然无法解释他的死因。
I have no particular reason for doubting him.
我没有什么特别的理由怀疑他。
The ostensible reason for his absence was illness.
他假托生病缺勤。
There is a reason for every important thing that happens
每件重要事情的发生都有原因。
This was the real reason for her call
这才是她打电话的真正原因。
As always, Peter had a reason for his action
一如往常，彼得对自己的行为总有说辞。
The major reason for excess weight is excess eating.
体重超标的主要原因是饮食过量。
The reason for my visit had obviously slipped his mind.
他显然已经忘掉了我的来意。
She hoped he hadn't deduced the reason for her visit.
她希望他还没有推断出她此次来访的原因。
It gives him a reason for lounging around doing nothing
这给了他一个无所事事地消磨时间的理由。
You have no cause for complaint.
你没有理由抱怨。
We were told there was no cause for alarm.
有人告诉我们没有任何理由惊慌失措。
要特别注意，cause 表“原因、根源”解，常常与of连用，且是可数名词：
We can’t get rid of war unless we get rid of the cause of the war.
如果我们不能消灭战争的根源，我们就不能摆脱战争。
What would you say was the root cause of the problem?
你认为问题的根源是什么？
The cause of the crash was given as engine failure.
撞车事故的原因被认定是发动机故障。
The cause of the Fire is not yet known.
火灾的原因尚不清楚。
An official inquiry has been launched into the cause of the accident.
当局已对事故的原因展开调查。
Police are still trying to establish the cause of the accident.
警方仍在努力确定事故的原因。
Police are trying to establish the cause of death.
警方在设法确定死因。
The cause of the accident was still in dispute.
事故的原因仍在争议之中。
Unemployment is a major cause of poverty.
失业是贫困的主要原因。
She was the unwitting cause of the argument.
她无意中引起了这场争执。
