LIFE ON THE GOUNIT 9readingLead-in How is the way we live today different from life in the past?Beacon Tower烽火台In ancient times, people built beacon tower to send signals.LetterTelephoneEmailtodaythe latest cellphonesLife on the go Unit 9 Technology ▲ Are cellphones popular among teenagers?Skimming What does the title “Life on the go” mean?A. It means an active and busy life.B. It me..