2012年大学英语六级考试考前预测卷（第四套）_第3页

PartIV Reading Comprehension(Reading in Depth)(25 minutes)

Section A

注意：此部分试题请在答题卡2上作答。
47．According to the new policy launched by the University of Kentucky．smokers are banned from smoking if they step into________ ．
48．More than 365 U．S．colleges and universities instituted antismoking rules both indoorsand out for the purpose of________ ．
49．The smoke-tree buffer zone adopted by many colleges and universitiesis mainly used to prevent people from__________.
50．The penalty of violating the Iowa Smokefree Air Act is upto_________．
51．According to Toni Troester，it is not feasible to keep track of who is smoking in the Universityof Iowa due to________．