Unit 3 Computers（课件）-2018-2019版英语创新设计课堂讲义同步系列（人教版必修2）浙江专版

Unit 3　Computers In Kansas City，Missouri，a computer helps firefighters. The computer，which works very fast，has information about all the 350,000 street addresses in the city.Within two or three seconds after a call is received，the computer provides necessary information for the firefighters.The information is then sent to them by radio from the computer centre in the City Hall.The exact place of the burning building and its size，type and any other details are clear to them. The Kansas City computer system also has a medical record of each of the city's 900 firefighters.This kind of information is especially useful when a firefighter is injured.With the information，doctors at the hospital can treat the injured firefighters more quickly and easily. The firefighters themselves greatly appreciate the computer's help.They know about possible danger ahead of them and can prepare for it.Many times the computer information helps to save lives and property.Sometimes the lives are those of firefighters themselves.Mike Horan，a firefighter captain，says，“I feel as if the computer is watching over me to help me if I get hurt.” 词海拾贝 1．firefighter n．消防员 2．by radio通过无线电 3．appreciate v．感激；欣赏 4．watch over看守；监视；照管 $$