Then she thought no more, for the heat became raging flames.

It was almost noon and the heat had become oppressive.

A stainless blue sky held a sun whose heat had not yet become fierce.

The heat became every day more oppressive as the summer advanced into the suicide days of late November, and she could not sleep.

We wish it would stay that way, but the heat is becoming too great, I fear.

I cried; when, to my horror and astonishment, the heat became greater than before.

The heat became stifling and the breath came heavy in our lungs.

The heat from their star is becoming progressively more trapped by the contaminated atmosphere.

The heat was becoming more intense, and I struggled to my knees.

Meanwhile the day was ending and the heat becoming less intense.