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Firefighters wear special coats and helmets to protect themseleves from heat and falling ceilings.
ceiling
n.天花板，顶棚
n.温度；热
v.把......加热
soldier
n.士兵，战士
officer
n.警官，军官，官员
airport
n.航空站，飞机场
Read 1a again and complete the table.
Job
Uniform
Purpose
student
to protect themselves from heat and falling ceilings
green clothes
official
pilot uniforms
to let us know we can get help from them
doctor
school uniforms
to show good discipline
firefighter
special coats and helmets
to make us believe that they know how to fly the plane
airline pilot
police officer
to make patients find them easily and to stop the spread of diseases