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Summer Safety Tips
Summer is a great time of the year. You go swimming in a lake or pool. You spend time at the beach and play in the ocean. But don’t forget these tips.
1. Always swim with an adult. Even the best swimmers should not swim alone. Why? You might get a cramp.
2. Do not run when you are near a pool, lake or sea. Accidents can happen quickly.
3. The hot sun can burn your skin. So use sunscreen to protect yourself. Your eyes should be protected, too. So wear sunglasses or a hat. Make sure you drink lots of water on hot days, too.
If you follow these simple tips, you will have a great and safe summer!
1．You may get cramp while swimming, so you must ________. ( )| A．use sunscreen | B．keep yourself away from water | C．swim with an adult |
| A．The sun can hurt your eyes. | B．The sun can burn your skin. | C．Water can get into your eyes. |
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
