Unit4ThenandnowAlet’stryLetstalkByZhangHaizhuin199920yearsago5yearsagothesameschooldifferenttimesSchoolin2018Schoolin2018Schoolin1968Schoolin1968-Children,pleasewelcomeYifansgrandfathertotheclass.-Welcome!-Wow!Thisschoolisverydifferentfrommyoldschool.Therewerenocomputersatallbefore.-Really?Howdidyoulearn?-Welistenedtotheteachersandreadlotsofbooks.:Wow,alibrary!Therewasnolibraryinmyoldschool.:T...