Reading for Speed and Fluency 2/e 4 영영 Unit 1

교육안내

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세트공유

sea level

n. the height of the sea relative to the land
The lake is around 400 meters below sea level.

greenhouse

n. a house made from clear glass or plastic for plants to grow in
We have a small greenhouse in our backyard where we grow plants.

normally

n. usually
It was strange to see an owl. Normally, they only come out at night.

coal

n. a black rock made of carbon that is burned as a fuel
Many power stations burn coal to produce energy.

global warming

n. the heating of the earth by human actions
Global warming occurs when the temperature goes up.

concern

n. a feeling of worry shared by people
I was filled with concern after reading the newspaper.

gas

n. an air-like substance; for example, steam is water in gas form
Is there a gas station around here?

cool

n. to make something become colder
She cooled her hands in the stream.

oil

n. a thick black liquid used for making gasoline and other fuels
Water and oil will not mix.

produce

n. to make or create something
Plants and trees produce oxygen we need to breathe.