新概念英语第二册 Lesson 46 · 语法精读与固定搭配分类
本课是一则偷渡被发现的新闻。语言点集中在 被动语态（be astonished at / be discovered / be arrested / be confined to / be ordered to）、It occurred to sb. to do sth. 句型、以及 a number of、account for、on top of、admit doing sth. 等短语。
| 句子 | 语法点 |
|---|---|
| When a plane from London arrived at Sydney airport, workers began to unload a number of wooden boxes which contained clothing. | 时间状语从句 when 引导 · a number of ＋ 复数名词 ＝ 若干 · which contained clothing 是定语从句，修饰 boxes |
| No one could account for the fact that one of the boxes was extremely heavy. | 同位语从句 that 引导，说明 the fact 的内容 · account for 说明……的原因；no one could account for 谁也弄不清 · extremely 极其，修饰 heavy |
| 句子 | 语法点 |
|---|---|
| It suddenly occurred to one of the workers to open up the box. | 固定句型 It occurred to sb. to do sth. ＝ 某人突然想到做某事；it 是形式主语，真正的主语是 to open up the box · open up 打开 |
| He was astonished at what he found. | 被动语态 be astonished at 对……感到惊讶 · 宾语从句 what 引导，作介词 at 的宾语（what ＝ the thing which） |
| 句子 | 语法点 |
|---|---|
| A man was lying in the box on top of a pile of woollen goods. | lie in the box 躺在箱子里 · on top of 在……之上 · a pile of 一堆 · goods 货物，永远用复数 |
| He was so surprised at being discovered that he did not even try to run away. | 结果状语从句 so … that … · being discovered 是动名词的被动式，作介词 at 的宾语 · not even 甚至都不 |
| 句子 | 语法点 |
|---|---|
| After he was arrested, the man admitted hiding in the box before the plane left London. | 被动语态 be arrested 被捕 · admit doing sth. 承认做过某事（admit 后接动名词，不接不定式） |
| He had had a long and uncomfortable trip, for he had been confined to the wooden box for over eighteen hours. | had had 是 have 的过去完成时（＝经历过）· for 是并列连词，表原因 · 被动语态 be confined to 被关在……里 · over ＝ more than |
| The man was ordered to pay £3,500 for the cost of the trip. / The normal price of a ticket is £2,000! | be ordered to do sth. 被命令做某事 · the cost of the trip 旅费 · 结尾用「正常票价 2,000 英镑」与他被罚的 3,500 英镑作对比，形成讽刺 |
| 短语 | 用法与例句 |
|---|---|
| a number of | 若干，许多，后接可数名词复数：a number of wooden boxes。 |
| account for | 说明……的原因；no one could account for the fact 谁也弄不清这个事实。 |
| It occurred to sb. to do sth. | 某人突然想到做某事：It occurred to one of the workers to open up the box. |
| be astonished at | 对……感到惊讶：He was astonished at what he found. |
| on top of | 在……之上：on top of a pile of woollen goods。 |
| admit doing sth. | 承认做过某事：the man admitted hiding in the box。 |
| be confined to | 被限制、被关在……里：he had been confined to the wooden box。 |