PartⅣ　Exercises

1.Read and complete the blanks.

（1）BAS is mainly used in________HVAC control systems and energy management system.

（2）BAS is not limited to just HVAC________.It also has the ability to________electricity，gas，________，steam，hot water，chilled water and fuel.

（3）A building controlled by a BAS is often________as an intelligent building.A metro station________by a BAS can be referred to as a smart station.

（4）Many BAS can be________from any location with an Internet connection.

2.Translate the following passage into Chinese.

BAS itself is an energy and comfort management system.It integrates the different systems in a building like HVAC，lighting，vertical transportation，fire safety and security in order to provide coordinated control of the building's functions.

BAS joins mechanical and electrical systems and equipment with microprocessors，communicating with each other.In a fire emergency，a BAS can respond quickly to control the ventilation system to minimize the spread of smoke.It also coordinates all of the functions in a metro，such as shuting down elevators in the affected area，activating fire suppression system in the fire location，and opening security and emergency doors for passengers and emergency personnel.