Englishfor English speakers
as
Preposition
—
A word that is used to compare two things that are equal.
As you know, we need more workers.
I baked the cake as my mother used to.
The room looks just as it did when I was a child.
The speech, as he remembered it, was very powerful.
Interesting as it seems, I don't think I'll get it.
He was as big as a mountain.
—
A word that is used to show that two things happened at the same time.
Just as I went out, it started to rain.
We sleep as the world turns in darkness.
—
A word that is used to show why something happens.
As I couldn't understand French, I didn't watch the film.
as
Adverb
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A word that is used to compare two things that are equal. (Used before adjectives)
You are younger than I am, but nearly as tall.
This is not as good as it was last time.
a
Determinative
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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
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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.
control
Noun
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If you have control over someone or something, you can make it do what you want.
He should try to take control and tell the other handlers what to do.
in the rain, he had lost control on the wet surface and spun off the road.
The country fell under the direct control of the army.
They are trying to keep tighter control over spending.
The government will demand improved pollution control systems for all factories.
Most companies devote some resources to quality control and product testing.
Unless birth control methods are used, sooner or later the woman is likely to get pregnant.
The continuing Soviet desire for arms control led to a SALT II treaty.
The brain's control systems tend to decline with age so that, for instance, our balance gets less good.
The experimental group took the medicine while the control group took a sugar pill.
Suddenly the airplane went out of control and started diving.
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A control is a button, switch, dial, etc. that lets you make a machine do what you want.
If you turn off your TV with the remote control, it continues to use a quarter of normal power.
She touched the volume control and the sound dropped.
control
Verb
—
If you control something, you make it do what you want.
Too many people are overweight because they can't control their eating behaviour.
The company is controlled by a New York businessman.
—
If you control something, you do not let its numbers or size grow too much.
The new plan should control inflation.