or　5…6　minutes。

Well；　I；　however；　find　it　quite　delighted　to　spare　no　efforts　to　read　or　listen　to　them。　I　consider　it　a　good　way　to　learn　exotic　and　various　things　around　the　world。　It　agrees　with　my　nature　to　explore　despite　the　fact　that　they　are　hard　for　me　to　prehend　with　poor　English。　As　I　said　before；　I　always　exert　tremendous　efforts　to　absorb　knowledge　from　them　since　I　am　so　deeply　fascinated　by　the　topics　they　are　about；　and　as　a　result；　I　h*e　fun　while　others　take　preparing　for　TOEFL　as　an　agony。

Let　me　share　my　little　fruits　of　my　exploration　with　you。

In　Freda’s　listening　class；　a　lecture　regarding　super　volcano　in　Geological　area　was　offered。　From　the　passage　I　learnt　that　volcanoes　are　divided　into　ordinary　volcano　and　super　volcano　which　would　bring　about　deadly　catastrophe　to　the　world　if　it　erupted。 Inside　this　lecture　the　professor　interprets　the　word　“crater”　like　this　“A　crater　is　a　steep…sized；　usually　circular　hole　formed　by　either　an　explosion　or　a　collapse　of　a　large　portion　of　the　earth　under　the　volcano。” What　does　it　mean　by　“collapse”？　Isn’t　all　the　craters　are　higher　than　its　surrounding？

Later　in　the　class；　a　discovery　video　on　super　volcano　which　was　searched　by　our　beloved　Freda　on　purpose　of　fulfilling　our　curiosity　was　shown　to　us　by　using　the　projector。　This　documentary　states　how　four　scientists　working　in　different　fields　blended　their　discovery　so　that　they　pinpointed　when　and　where　the　last　eruption　of　super　volcano　occured。

Besides　the　story；　it　also　interpreted　the　difference　between　an　ordinary　volcano　and　a　super　volcano。　With　a　super　volcano；　the　magma　doesn’t　h*e　time　to　bee　l*a；　so　it　blasts　into　numerous　pieces　of　ash　which　does　the　most　damage。　If　a　super　volcano　were　to　erupt；　the　fo