Answer the questions according to the following materials: Material 1: On July 9, 2002, the temperature in a certain place in Henan was as high as 39℃, and everyone was resting at home. However, Zhao,

Answer the questions according to the following materials: Material 1: On July 9, 2002, the temperature in a certain place in Henan was as high as 39℃, and everyone was resting at home. However, Zhao, who is in his fifties, (1) The main way of heat dissipation in high temperature environment is the increase of sweat gland secretion, that is, sweating.

(2) Zhao's body temperature rises, which means that he generates more heat than he emits. Due to excessive drinking water, the osmotic pressure of intracellular fluid decreases, but the temperature adjustment is not affected, and heat production and heat dissipation are basically balanced.

(3) When Zhao's body temperature rises gradually, the destroyed internal environment factor is body temperature; Gao used pure water to quench his thirst. Sweating leads to the decrease of salt in the body, so the osmotic pressure decreases, and the destroyed internal environmental factor is the balance of water and salt.

So the answer is:

(1) sweating at high temperature

(2) Heat generation is more than heat dissipation, which is basically balanced.

(3) Water-salt balance of body temperature