Englishfor English speakers
a
Determinative
—
A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
—
A is the first letter of the alphabet.
The letter "a" comes before "b".
—
In some schools, an A is a very high grade.
Ron got an A on his earth science test.
world
Noun
—
The Earth.
Our world needs to be cared for.
—
The .
I love you more than anybody else in the world.
—
The setting of a group of people.
They were in their own world as they talked about trains nobody else knew about.
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A planet.
I wonder if there is life on other worlds.
economy
Noun
—
The economy is the use of the resources of a community or system.
We wonder about the ability of our businesses to compete in the global economy.
The economy was growing at a rate of 2% per year.
Small businesses provided most of the new jobs in our economy.
The economy has not been this strong since 2007.
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Economy is the careful and minimal use of resources.
The schools were closed for reasons of economy.
We bought a small economy car.
You can save 50 cents by getting the economy size.
These cars are fun to drive, plus they have high fuel economy.
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Economy is the section of the airplane with the smallest seats and cheapest ticket prices.
We decided to fly business class instead of economy.
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A market economy is an economy with free competition between businesses.
China will continue to move towards a market economy.
for
Preposition
—
shows that something belongs to something else, or has a specific function
This cake is for you.
This is a net for catching fish.
—
For is used to show the reason for something
He was angry, for he had never been called such terrible names before.
for
Subordinator
—
For introduces a clause with a subject and a to-infinitive
It's not good for you to be too relaxed.
the
Determiner
—
Used, instead of a, to reference something specific, already known to exist.
Compare "I read a book." and "I read the book."
—
Used with a stress, to show that the word following is special.
Are you the John Smith that I went to school with?
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Used with an adjective that acts like a noun to mean all of the people concerned
The poor are always with us.
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Used with superlatives forms of adjectives and adverbs.
You are the best.
benefit
Noun
—
A benefit is something good that comes from something else.
It was her idea, but she received no benefit from the new program.
With the new job comes many new benefits, such as dental and medical insurance.
benefit
Verb
—
If you benefit from something, you get something good from it.
My health has really benefited from all the exercise I'm getting.
of
Preposition
—
Made using.
It is a house of cards.
all
Determinative
—
All of something is 100% of it, or the entire amount.
Well you could stay in bed all day on Friday. And I could take the kids to school.
You know, you can't see all of the moon.
"There was a problem." "Yes, I know all about it."
No! You did it all wrong.
Can you tell me all this tomorrow?
I think we all know we have to change.
The shirt is almost all white.
Is that all you can do?
—
All of some things is 100% of them, or every one.
And then you can go and tell all your friends about it.
We have over two hundred men, but not all of them had the problem.
all
Noun
—
If you give your all, you give 100% of your energy, attention, etc.