懂你英语 Level3 Unit2 Part2 Vocabula

When people fall down they can break a bone. 

A broken bone can be very painful.

If someone is cut, they will bleed. 

A knife or sharp object can cut someone and cause bleeding.

Poisons are very dangerous and can cause death. 

Some snakes or spiders are poisonous, so be careful.

A heart attack can happen very suddenly. 

If someone has a heart attack, call for an ambulance right away.

If you catch on fire, fall to the ground and roll. 

Getting too close to a fire can be very dangerous.