Injuries 受伤
When people fall down, they can break a bone.(R) 当人们跌倒时，他们会骨折。
A broken bone can be very painful.(R) 骨折是非常痛苦的。
If someone is (cut), they will (bleed).(R) 如果有人被割伤，他们会流血。
A knife or a sharp object and can cut someone and cause bleeding. 刀或锋利的物体，可以割伤人并引起出血。
Poisons are very dangerous and can cause death. 毒药是非常危险的并且可能致死。
Some snakes or spiders are poisonous, so be careful. 一些蛇或者蜘蛛是有毒的，所以要小心。
A heart attack (can) (happen) very (suddenly).(R) 心脏病发作会发生得很突然。
If someone has a heart attack, call for an ambulance right away. 如果有人心脏病发作，马上叫救护车。
If you catch on fire, fall to the ground and roll. 如果你着火了，倒在地上并滚动。
Getting too close to the fire can be very dangerous. 离火太近会非常危险。
Q：What happens is someone's heart stopped beating? If someone's heart stopped beating, they are having a heart attack.(R) 一些人的心脏停止跳动会发生什么？如果一个人的心脏停止跳动，他们有心脏病。
Q：Why are some snakes or spiders are dangerous? Some snakes or spiders are poisonous. 为什么一些蛇和蜘蛛是危险的？一些蛇和蜘蛛有有毒的。
Q：What can happen is someone falls down? When people fall down, they can break a bone. 一些人跌倒时会发什么什么？当人们跌倒时，他们会骨折。
