本单元是关于朋友的朋友的对话
Helen:Well, you see, I have this friend. And, she has a problem. She saw a friend of hers doing something wrong and now she doesn't know what to do. If she reports him, he'll know it was her and probably won't ever speak to her again. But if she doesn't report him, he'll just get away with it.
Prof. Lewis:What do you think your 'friend' should do?
Helen: I haven't got a clue!
Prof. Lewis:Well, you can tell your 'friend' that I'm very suspicious about someone's unusually high test score recently and I also overheard some very worrying comments about photocopying being 'very easy'.
Helen: Really?
Prof. Lewis:Yes really. Now what's your friend of a friend's name?
Helen: It's ...it's John.
Vocabulary:（词汇）
get away with something:（侥幸逃脱）
to do something wrong or illegal and not get caught or found out
本单元语言点是省略号，请看下面关于省略号的用法和例句
Apostrophes
Uses:（用法）
We can use an apostrophe (') to:
1. show possession, show that something belongs or is owned by someone.
Someone's high test score
Your friend's name
2. show a contraction show where a letter has been missed out when words are shortened
He'll know it was me (He will)
If she doesn't report him (does not)
Possession:（所有格）
If it's a singular noun, the apostrophe goes before the 's'. It doesn't matter if thing or person owned is singular or plural
The boy's shirt = one owner, the boy
The doctor's patients = one owner, one doctor
If it's a plural noun, the apostrophe goes after the 's'
The boys' shirts = more than one boy or owner
The doctors' patients = more than one doctor or owner
If it's an irregular plural noun, the apostrophe goes before the 's' The men's newspapers
The mice's footprints
If a noun ends in an 's', we usually put the apostrophe + s after the first 's'
James's house
Dennis's friends
Although this rule is flexible and nowadays you might see:
James' house
Dennis' friends
Another exception to this rule is with literary or classical references:
Dickens' novels
Socrates' writings
If the context is clear, we don't always have to mention the thing that's owned:
Is that my pen or Paul's? = Paul's pen
That top is my sister's = my sister's top
We don't use an apostrophe to show possession with these determiners:
mine - That's mine
yours - I've got my money, have you got yours?
his - Those shoes are his
hers - That bike is hers
its - My dog isn't well, its temperature is very high
ours - That house is his and that one is ours
theirs - Don't touch those cakes, they're theirs and they don't like to share
Contraction:（缩写）
The apostrophe is used to show where a letter or letters have been left out:
She hasn't replied to my letter = has not
He's my brother = is
We can make contractions with:
1. nouns and pronouns
She's a teacher
There's nobody here
2. auxiliary verbs (would, could, will, should) as well as sometimes with be and havewhen they aren't being used as auxiliary verbs:
They would've come if you'd invited them = would have/you had
I haven't got any money = have not
We can't use double contractions in English:
'She'sn't from France' is wrong.
Instead we'd say 'She isn't from France' or 'She's not from France'
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