下面哪些情况是剽窃（Y）？哪些不是剽窃（N）？ 1.Itakeideas,materialsandpicturesfromtheInternetwithoutreferencing. 2.Iuseanotherperson’ssentencesbutchangethemsignificantlywithoutreferencing. 3.Ifollowanotherperson’sexampleintermsofdesignandmethodwithoutreferencing. 4.Itakeagraphfromatextbook,givingthesource. 5.Igiveacitationforsomeinformationbutmisspellingtheauthor’sname.