介词双重结构

先请看 SEFC IB Lesson 91 中的一句话：Today you can either fly to Abu Simbel or you can take a boat from across the lake . 今天你既可以乘飞机去阿布辛波古庙,也可以从湖的对岸乘小船过去。

该句中“from across the lake”为“介词 + 介词短语”结构，这一结构是英语介词用法中较为特殊的现象，其目的主要是为了使所表达的意思更确切、更全面。一般语法书对此很少涉及，但我们在学习中时常碰到。现将常见的“介词 + 介词短语”结构举例说明如下。

1 . from + 介词短语。

“from + 介词短语”是“介词 + 介词短语”结构中最常见的一个，其后可接的另一个介词短语至少有十个以上。

The old man looked at me from above his glasses .

He said hello to me from across the room .

The little boy came out from behind the door .

They came from beyond the sea .

He heard the shouting from somewhere down the corridor .

Take the kettle from off the stove .

We heard voices from over the fence .

The snake crawled out from under the table .

2 . except + 介词短语。

except 后常接介词 at , by , from , in , on , to 等引导的短语。

I never saw Mr White except at parties .

You could never have lost your way , except by your own carelessness .

I take no orders , except from the king .

I can take my holidays at any time , except in August .

No admittance , except on business .

We went nowhere , except to school .

3 . till / until + 介词短语。

till / until 后总是接介词 after 引导的短语。

I stayed till after ten o'clock .

It was not till after midnight that my visit came to an end .