Ask for a sentence at the beginning of the composition that can set off the irritable atmosphere in summer.

It's very hot in summer, the sun has just come out, and the ground is in flames. It's so hot that it seems that a spark will cause an explosion.

There is not a cloud in the sky, there is no sun overhead, there is no wind, and all the trees are standing there listlessly and lazily.

Cicada kept making annoying calls on the branches, as if cheering for the scorching sun.

Note that this is a paragraph, not three beginnings.