A: Oh, my God. Now you started a fire. Oh, now you set off the smoke detector.
B: Oh, pardon?
A: I said, “now you set off the smoke detector”. Hah.
B: Oh, what was that noise?
A: The smoke detector. The fire alarm. You set it off.
When there is a fire, the alarm goes off.
B: Why?
A: Because an alarm means there’s an emergency.
B: Emergency?
When there is a fire, ←
1- What does “When there is a fire” mean?
Does it mean "When a fire happens "?
2- Does “there is” mean “happens” in this sentence?
Pretty much.
I think “a fire happens” means a fire starts.
“There is a fire” indicates that a fire exists, but probably no one would care about the difference.
I don’t think we can use ‘a fire’ when fire is a non-count noun which cannot be pluralized or quantified.
We may say ‘an occurrence of fire’.
Even the proverb says: Where there is smoke, there is fire.
What’s your take on it, @Torsten?
I think there’s two different concepts here.
There is fire in my kitchen whenever I turn on the gas stove, but fortunately I have never had a fire there.
Also in the plural:
“Brush fires rage in Southern California amid record heat, worsening drought.”