第6部分：完形填空（第51～65题,每题1分,共15分）

下面的短文有15处空白,请根据短文内容为每处空白确定1个最佳选项。

Paper or Plastic?

Take a walk along the Chesapeake Bay, and you are likely to see plastic bagsfloating in the water. They have made their_______(51)into local waterways and,from there, into the bay, where they can________(52)wildlife. Piles of themshow up in landfills（垃圾填埋地）and on city streets. Plastic bagsalso take an environmental toll（代价）inthe__________(53)of millions of barrels of oil expended every year to producethem.

Enter Annapolis and you will see plasticbags_______(54)free in department stores and supermarkets. Alderman（市议员）Sam Shoeshine has introduced a well-meaning_______(55)toban retailers from distributing plastic shopping bags up Maryland's capital. Instead,retailers would be required to  _______(56) recycled paper and to sell reusable bags. The city of Baltimore is _______(57)a similar measure. Opponents of the_______(58), however, arguethat paper bags areharmful, too：They cost more to make; they _______(59)more resources to transport, and recycling them causes more pollution thanrecycling plastic. The argument for depriving Annapolis residents_________(60)their plasticbags is far from accepted. Everyone in this ________(61)is right about onething: Disposable shopping bags of any type are wasteful, and the best outcomewould be for customers to ________(62)bags instead. Annapolis' mayor is investigating how to handout free, reusable shopping bags to city residents, a proposal that can proceed________(63)of whether other bags are banned. A less-expensive alternativewould be to encourage retailers to give be more________(64)to customers who bringtheir own reusable bags. And this policy would_________(65)if stores imitatedfurniture mega-retailer（超人零售商）Ikea and charged for disposable bags at the checkout counter. A broadban on the use of plastic shopping bags is not the answer.

51. Adifference   B point    C progress     Dway

52. Aharm       B help          C keep          Dprotect

53. Alight     B form    C time        Dplace

54. Adropped   Bpacked    C put        Ddistributed

55. Aproposal     Bservice    C system   D change

56. Aopen      B fill     C offer     Dhold

57. Agetting     B considering   Creplacing   D improving

58. Aidea       Beffect     C technology   Dbehavior

59. Alimit      B provide   C destroy    Dconsume

60. Afrom      B with      C of     D in

61. A debate     Borganization   C project   D program

62. Areform     B reuse     C repair   D reduce

63. Ainstead     B because   C regardless   D careless

64. Aexamples    B instructions   Cdiscounts   D receipts

65.Aimpressive    B effective   C formal   D typical

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