The other UNC professors at the__32__began sharing their own stories about the troubling state of curiosity on__33__.All of them have noted that such ignorance isn’t__34__—students have always possessed far less knowledge than they should.But in the past，__35__tended to be a source of shame and motivation.Students were far more likely to be__36__by not－knowing，far more eager to fill such gaps by learning.__37__，nowadays as one reviewer once said，“It’s that they don’t__38__what they don’t know.”

　　In our increasingly complex world，the amount of information required to master any__39__discipline—e.g.computers，life insurance，medicine—has expended geometrically (成几何级数增加地)．We are forced to__40__specialists，people who know more and more about less and less.Curiously，in a world where everything is worth knowing，nothing is. 21.A.helped　

　　B．greeted

　　C．taught

　　D．asked

　　22．A.read

　　B．recognized

　　C．visited

　　D．wrote

　　23．A.But

　　B．Or

　　C．Then

　　D．So

　　24．A.puzzlesB．expressions

　　C．smilesD．feelings25.A.describing

　　B．drawing

　　C．showingD．painting

　　26．A.uglyB．handsome

　　C．crazy

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