Summer is coming. We need to drink more water in the daytime. Usually when we are sick, the doctor will ask us to drink more water. But as the global warming is more and more serious, the summer is becoming hotter and hotter. We are easily get sick under the hot weather. Some people will died from heatstroke. It is very terrible. To make such kind of things be less, we need to protect ourselves. Try not to leave the high temperature if possible. And then, remember to drink more water.