I read in a grammar textbook that when people want to talk about general phenomena they shouldn’t use “the”. For example:
They took him to hospital.
Here the speaker doesn’t mean a specific hospital. Then it is mentioned that in American English, “the” is used for general phenomena too. So:
They took him to the hospital.
Here also, the speaker doesn’t mean a specific hospital.
I wonder if it is a general rule in American English? For example which of the following is correct in American English?
I have to be at the airport by 5PM. (Not a specific airport, but the general meaning of airport.)
or
I have to be at airport by 5PM. (Not a specific airport, but the general meaning of airport.)