English grammar_ Noun - use

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1> A common noun

1.1> a table and four chairs

I bought a table and four chairs.
I bought 1 A table and 4 A chair .

• countable noun , Performance realization sheet / complex ;
• chairperson： chairman ;

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1.2> in a week

There are seven days in a week.
1 Zhou you 7 God .

• Yes ： There is ,there be;

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1.3> Show the whole

a whale is a mammal.
Whales are mammals.
The whale is a mammal.
Whales are mammals .

• the + Singular noun , Represent all ;
  the whale： All whales ;
• whales ： All whales ;

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2> Collective nouns

• Represents a group of units , Or refers to the aggregate regarded as a whole .

2.1> family

My family is an important part in my life.
My family is a very important part of my life .

• an important part

There are thirty families in the apartment building.
This apartment lives 30 A family .

• family 【n.】 family , There is a list / The plural ;

My family are all basketball fans.
My family are all basketball fans .

• family 【n.】 family , Only the plural ;

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2.2> cattle

The cattle are grazing glass.
Cows are eating grass .

• cattle: 【n.】 /ˈkæt(ə)l/
  All types of cattle are collectively called , Only the plural ;
  bull ： Bull ; crow： Cow ;
  ox： Castrate cattle ;

A head of cattle is grazing glass.
A cow is eating grass .

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3> Material terms

• A substance noun that indicates no fixed shape ;

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3.1> too much butter

There is too much butter on the toast.
There is too much butter on this toast .

• butter Material terms , It's uncountable , use is;

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3.2> a cup of tea

She have a cup of tea.
She drank a cup of tea .

• tea , Liquid , It's uncountable , In units of measurement a cup of;

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6 > paper

6.1> a piece of paper

I need a piece of paper.
I need a sheet of paper.
I need a piece of paper .

6.2> evening paper

I bought an evening paper
I bought an evening paper .

6.3> evening paper

I am going to write a paper about air pollution.
I'm going to write a report on air pollution .

• >= 2 A word adjective , Put it in the back for decoration ;

6.4> my papers

The guard stopped me and asked to see my papers.
The guard stopped me to ask to see my papers.
The guard stopped me to see my ID .

• ask: The request has not been done yet , Use infinitive ;