独立主格结构

　那儿的湿度很大,所以树都长的特别高,一些高达90多米.

　划线部分为独立主格结构,逻辑主语是some.

当分词(短语)做状语时,其逻辑主语一般和句子的主语一致;但有的分词短语有它自己的独立的主语(在分词短语之前,这种主语常常是名词或代词主格),这种结构称为独立主格结构。其构成是:"名词/代词+现在分词/过去分词/形容词/副词/名词/介词短语"。

　注意：独立主格结构在句子中只能用作状语,表示时间,原因,条件,伴随等.

1) The clock striking eight, they began working.(时间状语)

2) The rain being over, we continued to march.(时间状语)

雨过之后，我们继续前行.

3) Time permitting, I'll go out with you.

4. That afternoon aboard the train, the cousins settled down in their seats.

那天下午,姐妹俩才登上火车落了座.

Settle vt./vi.

1). 定居 She settled in London last year. 她去年在伦敦安了家。

2). 解决(分歧、纠纷等)

It's time you settled your differences with your father.

现在你该解决同你父亲之间的分歧了.

3).平静下来

After the excitement, I tried to settle myself.

激动过后，我设法平静下来.

相关短语：

1）settle （sb.） down

① 使...安静,安顿下来

It always takes the class a while to settle down at the start of lesson.

那个班一上课总得过一会才能安静下来.

2)(在某地)定居下来,过安定的生活

When are you going to get married and settle down? 你打算什么时候成家安定下来?

3)舒服的躺下或坐下

She settle down/back in the chair and closed her eyes.她坐在椅子上闭目养神.

2) settle (down ) to 开始认真对待,定下心来做

They finally settled down to a discussion of the main issues.

他们终于开始讨论一些主要的问题了

3）Settle in/ into

① (使)适应(新的家、工作、环境等)

I haven't yet settled (down ) in my new job. 我还没有适应我的新工作.

② (+for)安定下来,安心(在某处停留一段时间)

They settled in for a long wait.他们安下心来,准备长时间的等待.

5. When they crossed the Rocky Mountains, they managed to catch sight of some mountain goats and even a grizzly bear and an eagle. 火车先是穿越落基山脉，她们设法看到了野山羊，甚至还看到了一只大灰熊和一只鹰。

1)catch /have/get sight of 看见，瞥见

I caught sight of his figure in the crowd.

我在人群中发现了他的身影.