重点词汇词组：

There was no reason1 on earth that Professor McGonagall would accept for their being out of bed and creeping around the school in the dead of night2, let alone being up the tallest astronomy tower, which was out-of-bounds except for classes3.

长难句分析

解：1主语+2定语从句+3定语从句

析：“that Professor McGonagall would accept…of night”是定语从句，修饰先行词reason，关系代词that在从句中作宾语；“which was out-of-bounds except for classes”是非限制性定语从句，修饰先行词the tallest astronomy tower，关系代词which在从句中作主语。

1.get out of 规避，摆脱

例：I think her backache was just a way of getting out of the housework.

我想，她说背疼只不过是为了逃避做家务编造的借口罢了。

常见搭配：

①get behind 落后；拖欠

例：She got behind with her mortgage and the house was repossessed.

她拖欠抵押贷款，房子被收回去了。

②get round sth. 成功应对，解决

例：We can get round the problem of space by building an extension.

我们可以通过扩建来解决空间不足的问题。

2.on earth 根本

例：There was no reason on earth why she couldn't have moved in with us.

她不能跟我们一起搬进来根本没有道理。

相关俚语：

①like nothing (else) on earth 极其古怪

例：With his make-up and strange clothes, he looked like nothing on earth.

他化了妆，穿了一身稀奇古怪的衣服，看上去像个外星人。

②bring sb. back down to earth 回到现实中来

例：The realization of how little work I'd done for the exams brought me abruptly back down to earth.

意识到要考试了，可我还没怎么复习呢，我一下子被拉回到了现实中来。

3.let alone 更不用说

例：Some people never even read a newspaper, let alone a book.

有些人从不看报纸，更不用说读书了。

常见搭配：

①let sb. down 使（某人）失望

例：When I was sent to prison, I really felt I had let my parents down.

我入狱的时候真觉得对不起我的父母。

②let sb. off 宽宥（某人）；从轻处罚（某人）

例：Instead of a prison sentence they were let off with a fine.

他们没有被判刑，只是被罚了款而已。

4.might as well 要不就……

例：We might as well walk there.

我们要不就步行去那里吧。

相关俚语：

①be just as well 最好；正好

例：He left at three, which was just as well or he'd have missed the plane.

他3点钟出发的，时间刚刚好，否则就赶不上飞机了。

②well away 醉酒

例：After five pints of lager and a couple of whiskies I was well away.

喝了5品脱淡啤酒和几杯威士忌之后，我已经完全醉了。

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