"it" is the subject. Controlling the verb "is".
a swim on a very hot day cools the body
taste
Lemon and honey in hot water can be very remedial for a sore throat.
freezing, very cold, cold, lukewarm, warm, hot, very hot, boiling
We like hot weather. We always go to the beach to swim.
Yes, the word it can be the subject of a sentence. It is hot outside today. It hasn't rained this hard in ten years!
a swim on a very hot day cools the body
very very hot
The linking verb in the sentence is "taste". It links the subject "we" to the adjective phrase "very hot and spicy."
The translation you seek is: "It is very hot today."
Five.
Sweltering - "The weather today is sweltering hot!"
The weather is blazing hot outside today.
sun is very hot
The linking verb in the sentence is "feels." It connects the subject "even a hot day in Arizona" with the subject complement "comfortable."
it is very hot
Steam is very hot. The bathroom is full of steam.