Emergency Vehicles

Ambulances are used to transport injured or sick people to a hospital.

Anambulance has trained medical personnel who can treat injured or sick people.

A wheelchair is for people who can’t walk.

Wheelchairs have 4 wheels and are often pushed by people from behind.

Fire engines are used to fight fires.

ps:消防车是用来灭火的。

used to曾经

fight打仗; 战斗; 作战; 搏斗; 打斗; 打架; 参加; 竞争; 斗争; 比赛，竞赛

fires火; 失火; 火灾; 炉火; 灶火; 射击; 开火; 开枪; 射出; 射; fire的第三人

Firefighters, like this one, often rescue people from burning buildings.

Tow trucks are used to tow cars.

ps:拖车用来拖汽车。

Tow trucks牵引车，拖运车; tow truck的复数

used to曾经

tow拖，拉，牵引，拽; 牵引，拽引

cars小汽车; 轿车; 火车车厢; car的复数

This tow truck is towing a car to a repair shop.

Helicopters are used to rescue people from dangerous places. 

This helicopter is lifting someone from a sinking boat.

Exercises:

1.what has medical equipment trained medical personnel？

Anambulance has trained medical personnel who can treat injured or sick people.

2.what do you call for a case of fire?

Firefighters often rescue people from burning buildings.

3.what is designed for people who can't walk?

A wheelchair is for people who can’t walk.

4.This helicopter is lifting someone from a sinking boat.

5.This tow truck is towing a car to a repair shop.

6.Ambulances are used to transport injured or sick people to a hospital.

7.Fire engines are used to fight fires.

8.This tow truck is towing a car to a repair shop.

9.Firefighters often rescue people from burning buildings.

10. if your car won't start ,you should call for a tow truck.