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wear business suits
wear hats in class
firefighter
n.消防人员
a special coat
a helmet
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
Look at the pictures and discuss the following questions with your partner. Then read and compare your opinions with the writer's.
1.What are the functions of uniforms?
2.How many kinds of uniforms are there in the text? What are they?
n.正文，文本
Read 1a again and complete the table.
Job
Uniform
Purpose
student
to protect themselves from heat and falling ceilings
green clothes
official
pilot uniforms