Unit1PublicsignsTheFirstPeriodWhatdoesthissignmean?Itmeansyoushouldn’tsmoke.Thenewwordsmean意思是意指should应当应该shouldn’t=shouldnotsmoke吸烟TheSummerHolidayiscoming.Yourcousin,LucywillvisitNanjing.Sheisonly5yearsold.PleaseinvitehertogotoHongshanZoo.Pleaseteachhersomethingaboutthepublicsigns.LookandwriteJack:There____asignhere.Ben:Yes.Thisisapublic____.Jack:What____itmean?Ben:It’s”Danger...
