unit 2 welcome

,Language,Unit2Book3,Welcometotheunit,!BonneAnne!HappyNewYear!新年快乐!,A.Morethan2000B.Morethan3000C.Morethan4000D.Morethan5000E.Morethan6000F.Morethan7000,Howmanylanguagesarethereintheworld?,Guess,3.WhataretheofficiallanguagesoftheUnitedNations?,Questions,2.Whatarethe10mostwidelyspokenlanguageintheworld?,1.Whatisthemeaningofthefollowingphrases？*Nativelanguage*Officiallanguage*Mothertongue*foreignlanguage,4.Whatforeignlanguagesdoyouplantolearn?,ToP27,1,Inanarrowsense,Languagesusedineachcountry（spoken/written）,狭义,语言,Language,2,Inabroadsense,Thewaythatinformationisexpressed（spoken/seen）,广义,语言,Language,Emoticons,Otherlanguages,Signlanguage,Braille,Animallanguage,=emotion+icon情绪图标,ToP21,:-),:-(,:-O,:-D,:-P,Emoticon,Emoticon,Emoticon,Emoticon,Emoticon,Emoticon,Emoticons,Otherlanguages,Signlanguage,Braille,Animallanguage,Or:Bodylanguage,ToP21,Howdoblindpeopleread?,Bytouchinglettersinraiseddots.,Braille,.,1.Whatisthenationalityoftheinventor?,Braillep21P39,2.FromwhomdidBraillegettheidea?,1.Whydobeesflyincircles?,BeesflyP21P102,Gigsawreading,2.Whenwasbeeslanguagefirstdiscovered?,3.Whodiscoveredit?,Summary,Language,inabroadsense,isthewayinformationisexpressed.Itcanbespokenorseen.,Canyouthinkofotherwaysinformationcanbeexchanged?,FurtherDiscussion,Canyoulistthegoodwa