English grammar_ Definite article the_ Small details

1> the + Body parts

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1.1> by the hand

The police officer catch cought the thief by the hand.
The police officer caught the thief by the hand .

• Preposition by It means surround , by the hand , There is surround action ;

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1.2> in the stomach

The boxer hit his opponent in the stomach.
The boxer punched his opponent in the stomach .

• Preposition in, On the inside , Directly dented .

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1.3> on the forhead

The mother kiss her daughter on the forhead saying good night.
The mother kiss her daughter on the forhead and said good night.
The mother kissed her daughter on the forehead , And say good night .

• Participle construction , Go conjunction and, say Participle ;

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1.4> on the back

The boss slapped me on the back of for my good job.
The boss patted me on the back for my good work .

• Can't write my back;

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2> play + the + Musical Instruments

He is playing the piano in the room.
He is playing the piano in the room .

• Memory method , Musical instruments are more private , Such as flute , Don't let others blow , So we should specifically refer to ;

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3> play + motion

I like playing basketbll wiht my classmates.
I like playing basketball with my classmates .

• Memory method , Basketball team sports , Not specifically that basketball .

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4> the + Changes in nouns

go to shcool ; Go to school ;
go to the school; To that school ;

go to bed; sleep ;
go to the bed; Go to the bedside ;

on TV; On TV ;
on the TV; On the TV ;

at table; At dinner ;
at the table; At the table ;

• the ： specific ;

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5> the + Adjective = Plural nouns

the rich = rich people
the poor = poor people
the young = young people
the old = old people

The rich are not always happy.
Rich people are not always happy .

The poor are often generous to each other.
The poor are often generous to each other .