句法篇三大从句之状语从句-●原因状语从句

句法篇三大从句之状语从句

●原因状语从句

原因状语从句顾名思义:用一个完整的句子去修饰主句谓语动词,用来说明该动作或状态产生的原因,简单讲就是主语所发出的动作或产生的状态是在此原因下进行的。

Because表示原因的语气最强,常用于回答以疑问词why引导的疑问句。because从句一般位于主句后面(也可放在主句前面),但是当 because从句表示理由时,只能放在主句后面。

※原因是客观因素,理由多带有主观因素。

找理由，就是找借口。主观原因，有可能无因果关系。

原因是事实上存在的一种因果关系，天气下暴雨，无法出门。

• for引导的从句并不说明主句行为发生的【直接原因】,只是提供一些有助于说明情况的【补充说明】,且不可位于主句前。
• since表示一种附带的原因,或者表示已知的、显然的理由,意为“既然”，引导的从句常放在句首。
• as所表示的理由最弱,只是对主句的附带说明,重点在主句。as从句通常放在主句前,有时也可改用so引导的复合句。

例如:

Since you say so, I suppose it is true.你既然这么说,我想这是真的。

As she was young, she was not equal to the task.因为她还年轻,胜任不了这项工作。

As I am about to start journey, I shall not be able to begin the work before I return.

因为我即将出去旅行,回来之前我不能开始那项工作。

I am about to start on a journey, so i shall not be able to begin the work before I return.

我即将出去旅行,所以回来之前我不能开始那项工作。

He was punished because he did not obey the regulations.

Because he did not obey the regulations,he was punished.

客观原因，放前，放后都可以

她可能没有参加会议，因为我在大厅里没有看见她。

(Because I didn't see her in the hall,she probably didn't atend the meeting.

she probably didn't attend the meeting because I didn't see her in the hall. （主观原因，不能放句中,表达错误）

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For centuries the Targaryens had married brother to sister, since Aegon the Conqueror had taken his sisters to bride.

自征服者伊耿娶妹妹为妻伊始，数百年来坦格利安家族的成员向来是兄妹通婚。

Since his father would not forbid it, she turned to others.

既然父亲不愿阻止他四处攀爬，她便转而采取迂回策略。

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①for和 because的比较

for是并列连词,只用于连接【表示原因的】分句,因此不能用于第一个分句的句首。此外,for还可以【表示推断式解释

】,而 because却不能。但是,如果for从句表示原因,有时可与 because互相替换。

例如:

There must be no one in the house for the door is closed.

门关着,屋子里准是没人。 (不可用because,推断)

The day breaks, for the birds are singing.

天要亮了,因为鸟在叫。(不可用 because,鸟叫并不是天亮的原因,只能从鸟叫推测出“天要亮了”)

Someone in the house must be ill, for a doctor has just come out.

房子里准是有人生病了,因为一个医生刚刚出来。 (表示推断,不用 because）

I didn't' go to see him because/for heavy snow was falling (for表原因可与 because互换)

Because a heavy snow was falling, i didn t go to see him.

由于天下大雪,我没有去看他。 (不可用for,for不用于句首)

Because/As/Since he was the best candidate, he got the job

.因为他是最佳人选,他得到了那份工作。（表示原因)

As/ Since he was the best candidate, he must have got the job.

由于他是最佳人选,他一定得到了那份工作。(不可用because,推断)

②强调原因状语只能用“it is because that”结构,这里的because不能换成 since,as或for。例如:

It was because he was too careless tha he failed in the exam.他正是因为太粗心才考试没有通过。

(不能用as或 since)

这几个连词同 since,as意义相近,都有“鉴于某个事实,原因是”的意思

Now (that) you are old enough to Judge things, you should start your own career

你既然已经长大,能明辨事理了,就应该去开创自己的事业

Seeing (that) she was seriously ill, they sent for the doctor鉴于她病情严重,他们派人请了医生

We could have a joint party, seeing that your birthday is the same day as mine.

因为你和我的生日在同一天,我们可以一起开一个生日聚会

Now that they got to know each other a little better, they get along just fine

由于彼此之间有了进一步了解,他们相处得不错

The situation is rather complicated in that we have two managing directors

由于我们有两位总经理,所以情况很复杂

Theory is valuable in thar it can provide a direction for practice.

理论所以有价值,就在于它能给实践指出方向

In that she is ill, she feels unable to do it

因为病了,她觉得不能做那件事

enough 当副词讲，放在old的后面

现在分词还是过去分词，主要是逻辑主语的判断

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这是一种强调语气的表示“原因”的结构。例如:

This essay, published as it was in a small magazine, remained unknown for a long time

这篇杂文由于发表在一个小杂志上,所以很长时间没有人知道

Living as he loes remote from the city, he rarely has visitors

他住在离城很远的地方,所以很少有人来访

例如: Not thal I don't like the film, but thal I have no time for it.

不是因为我不喜欢这部电影,而是因为我没有时间去看

句中的that= because not ....that but that 有时表示“不是…而是…”“

The soldier's' essential honour was not that he killed his enemy, but tha he was willing to die.

军人真正的光荣,不是*敌,而是不惜牺牲。

Not tha a life of drudgery should be our ideal life.我不是说终身劳苦是我们的理想生活。

Hernry did not quarrel with her, gentle creature that he was.

亨利没同她争吵,因为他是一个性情温和的人。

Tony, fool that/ as was, believed what she said.

托尼真是个傻瓜,相信了她的话。