Swimming is a good sport. It’s very popular in summer. Now lots of people like swimming because the water makes them feel cool.
Children, the summer holiday is coming. Here is some advice for you.
☆Swim with your parents or friends.
☆Do some warm-up exercises before you swim.
☆Ask for help if you don’t feel well in the water.
☆Don’t get into the water if you see the sign “ No Swimming”.
☆Don’t eat too much before you go swimming.
1.Swimming is very popular in summer.
2.People like swimming because the water makes them cold.
3.Winter holiday is coming soon.
4.Before we go swimming, we can’t eat too much.
5.If we don’t feel well in the water, we should ask for help.

同类型试题

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2


y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

