根据短文内容填空,每空一词。
Swimming is a good sport. It's very popular in summer. Now many people enjoy swimming. People like swimming because the water makes them feel cool.
Children, summer holiday is coming soon. Here is some advice for you.
⭐ Don't get into the water ifyou are alone(独自的).
⭐ Don't get into the water ifyou see the "No Swimming" sign.
⭐ Don't eat too much before you go swimming.
⭐ Do some warm—up exercises(热身运动) before you swim.
⭐ Ask for help ifyou don't feel well in the water.