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说明原因型议论文 模版一 (一)样板 Nowadays,therearemoreandmoreXXinsomebigcities.Itisestimatedthat(1).(用具体数据说明XX) WhyhavetherebeensomanyXX?Maybethereasonscanbelistedasfollows.Thefirstoneisthat(2).原因一;Besides,(3)原因二;Thethirdreasonis(4).原因三; Tosumup,themaincauseofXXisdueto.(5)指出主要原因; Itishightimethatsomethingweredoneuponit.Foronething,(6)解决建议一Ontheotherhand,(7).解决建议二 AllthesemeasureswillcertainlyreducethenumberofXX. (二)范文： Generationgapbetweenparentsandchildren Nowadays,therearemoreandmoremisunderstandingbetweenparentsandchildrenwhichisso-calledgenerationgap.Itisestimatedthat(75percentagesofparentsoftencomplaintheirchildrensunreasonablebehaviorwhilechildrenusuallythinktheirparentstoooldfashioned). Whyhavetherebeensomuchmisunderstandingbetweenparentsandchildren?Maybethereasonscanbelistedasfollows. Thefirstoneisthat(thetwogenerations,havinggrownupatdifferenttimes,havedifferentlikesanddislikes,thusthedisagreementoftenrisesbetweenthem).Besides(duetohavinglittleincommontotalkabout,theyarenotwillingtositfacetoface).Thethirdreasonis(withthepaceofmodernlifebecomingfasterandfaster,bothofthemaresobusywiththeirworkorstudythattheydontspareenoughtimetoexchangeideas).Tosumup,themaincauseofmisunderstandingisdueto(lackofcommunicationandunderstandingeachother). | 
