介绍:
We use the:
When there is only one of something in a particular area: the government, the police, the bridge, the river, the hospital
When there is only one in the entire world: the internet, the environment, the ozone layer, the atmosphere
With cardinal numbers: the first, the second, the third
With superlatives: the worst, the shortest, the lowest, the most beautiful, the least impressive
With places where the name refers to a group of islands or states: the USA, the UK, the Maldives, the Middle East, the United Arab Emirates
Before nouns which describe general things: exercise is good for the body, the motorbike is the most common form of transport in Asia, the role of the teacher has changed in recent years
Before abstract nouns used to describe a situation, process, quality or a change: over the years the development of the town accelerated, the frequency of violent crime decreased over the period, the improvement in living standards
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