Lesson 7 A perfect alibi
极好的不在现场的证据

文章讲解

'At the time the murder was committed, I was travelling on the 8 o'clock train to London,' said the man.
'Do you always catch such an early train?' asked the inspector.
'Of course I do,' answered the man. 'I must be at work at 10 o'clock. My employer will confirm that I was there on time.'
'Would a later train get you to work on time?' asked the inspector.
'I suppose it would, but I never catch a later train.'
'At what time did you arrive at the station?'
'At ten to eight. I bought a paper and waited for the train.'
'And you didn't notice anything unusual?'
'Of course not.'
'I suggest,' said the inspector, 'that you are not telling the truth. I suggest that you did not catch the 8 o'clock train, but that you caught the 8.25 which would still get you to work on time. You see, on the morning of the murder, the 8 o'clock train did not run at all. It broke down at Ferngreen station and was taken off the line.'


一、词汇部分
1.alibi/ˈæl.ɪ.baɪ/ n. 不在犯罪现场
2.commit/kəˈmɪt/ v. 犯（罪、错）
3.inspector/ɪnˈspek.tɚ/ n. 探长
词汇助记：in(向内) ＋spect-看＋or 名词后缀

4.employer/ɪmˈplɔɪ.ɚ/ n. 雇主
词汇助记：em-表示en- + ploy利用＋er名词后缀
词汇扩展：deploy 施展，部署

5.confirm/kənˈfɝːm/ v. 确认，证实
词汇助记：con-全部＋firm（实）

6.suggest /səˈdʒest/ v. 提醒
7.truth/truːθ/ n. 真相

二、文章讲解部分

1. 'At the time the murder was committed, I was travelling on the 8 o'clock train to London,' said the man.

'Do you always catch such an early train?' asked the inspector.

知识点:
1)time用法

at times 有时；不时
例： I love my family, but at times, I just need to take a vacation by myself.

at a time 作“一次，每次”讲，常用于“数词+at a time”的结构中。
例如： It's taking forever! How many boxes can you carry at a time?

注意它与at one time 的区别。at one time一般指“过去某一时期，曾一度(once)”或“同时”的意思。如表示“同时”，则两者可通用。例如：
例：Don't try to carry more than two boxes at one time—they're heavy!
例：Yes, I was a teacher at one time, long before I became a fashion designer.

at the time 那时
例句：I remember watching the first men on the moon on television; I was only six at the time.

2)时间＋状语从句
例句：Every time I see her, I feel like my heart skips a beat.
例句：The minute I heard the news from my parents, I decided to go home.

3)catch 用法小梳理
I didn't catch your name.
Catch you later.
I'm gonna go home and catch up on my beauty sleep.
A catch

2. 'Of course I do,' answered the man. 'I must be at work at 10 o'clock. My employer will confirm that I was there on time.'

知识点:
1)Must be 表推测；You must be the cutie Peter keeps talking about.
扩展：a must-see; a must-have; a must-go
扩展：对过去肯定推测must have done