What sentences describe summer heat?

1, the weather is sultry, there is no wind, and the thick air seems to be frozen.

2. The clods on the ground are boiling hot, and several dark brown crickets jump around like springs.

Those ironware are like baked sweet potatoes in the summer sun, which makes people afraid to touch them.

4. The scorching sun is in the sky, and on both sides of the road, mature grains are bent down by the sun. Grasshoppers are as numerous as grass leaves, making a weak and noisy sound in wheat fields and rye fields and among the reeds on the shore.