2．It can be hard to decide which food to buy in an American grocery store these days．The information on many products makes （51）C claims．
The label"organic （有机的）"（52）B that the United States Department of Agriculture recognized the product was grown under special conditions．The department says foods that meet requirements of it National Organic Programme can use an official label．It shows the words"USDA Organic"inside a（n） （53）A．USDA organic food does not contain genes that have been
（54）A changed．The food is grown without chemical treatment against insects or diseases．It is grown without chemical fertilizers．Before a product can be （55）D"organic，"a（n）C（56）C visits the farm where the food is produced to make sure the farm meets USDA standards．Organic meat，poultry，eggs and dairy products come from animals that are given no antibiotics （抗生素），must be fed organic food and have （57）Bto the outdoors．
No conclusive（58）Dshows that organic food is more nutritious than traditionally grown food．And the USDA-even if it proves organic food-doesn't claim that these products are safer or more nutritious．Organic foods meet the same quality and safety standards as traditional foods．The difference （59）A how the food is produced，processed and handled．Some people buy organic food for （60）D reasons．Organic food is produced by farmers who （61）
C the use of renewable resources and the conservation of soil and water to enhance quality for future generations．The prices between most organic food and traditional food products （62）A．Higher prices are due to more expensive farming practices and tighter government regulations．
The new USDA's national organic programme for labeling are aimed at enabling consumers to make a（n） （63）D choice among the foods they purchase and also include the safeguard of fines for
（64）B．People who sell or label a product"organic"when they know it does not meet USDA standards can be（65）C up to﹩11，000for each violation．
The label"organic （有机的）"（52）B that the United States Department of Agriculture recognized the product was grown under special conditions．The department says foods that meet requirements of it National Organic Programme can use an official label．It shows the words"USDA Organic"inside a（n） （53）A．USDA organic food does not contain genes that have been
（54）A changed．The food is grown without chemical treatment against insects or diseases．It is grown without chemical fertilizers．Before a product can be （55）D"organic，"a（n）C（56）C visits the farm where the food is produced to make sure the farm meets USDA standards．Organic meat，poultry，eggs and dairy products come from animals that are given no antibiotics （抗生素），must be fed organic food and have （57）Bto the outdoors．
No conclusive（58）Dshows that organic food is more nutritious than traditionally grown food．And the USDA-even if it proves organic food-doesn't claim that these products are safer or more nutritious．Organic foods meet the same quality and safety standards as traditional foods．The difference （59）A how the food is produced，processed and handled．Some people buy organic food for （60）D reasons．Organic food is produced by farmers who （61）
C the use of renewable resources and the conservation of soil and water to enhance quality for future generations．The prices between most organic food and traditional food products （62）A．Higher prices are due to more expensive farming practices and tighter government regulations．
The new USDA's national organic programme for labeling are aimed at enabling consumers to make a（n） （63）D choice among the foods they purchase and also include the safeguard of fines for
（64）B．People who sell or label a product"organic"when they know it does not meet USDA standards can be（65）C up to﹩11，000for each violation．
| 51．A．unbelievable | B．familiar | C．different | D．flexible |
| 52．A．predicted | B．guaranteed | C．proposed | D．doubted |
| 53．A．circle | B．operation | C．activity | D．service |
| 54．A．scientifically | B．skillfully | C．vividly | D．deeply |
| 55．A．presented | B．confirmed | C．registered | D．labeled |
| 56．A．protector | B．reminder | C．inspector | D．individual |
| 57．A．solution | B．access | C．entrance | D．direction |
| 58．A．agreement | B．concept | C．expectation | D．evidence |
| 59．A．lies in | B．consists of | C．turns down | D．holds back |
| 60．A．financial | B．social | C．cultrual | D．environmental |
| 61．A．replace | B．overlook | C．emphasize | D．realize |
| 62．A．vary | B．last | C．exist | D．work |
| 63．A．unique | B．potential | C．casual | D．sensible |
| 64．A．limitation | B．misrepresentation | C．reservation | D．reaction |
| 65．A．awarded | B．developed | C．fined | D．spared |
1．When we think of green buildings，we tend to think of new ones----the kind of modern，solar-paneled masterpieces that make the covers of architecture magazines．But the US has more than 100million existing homes，and it would be incredibly （51）B to tear them all down and （52）C them with greener versions．
An enormous amount of energy and resources went into the construction of those houses．And it would take an average of 65years for the （53）A carbon emissions （排放） from a（an） （54）Cenergy-efficient （节能） home to make up for the （55）D lost by destroying an old one．
So in the broadest sense，the greenest home is the one that has already been built．But at the same time，（56）A half of US carbon emissions come from heating，cooling and powering our （57）C，offices and other buildings．"You can't deal with climate （58）D without dealing with existing buildings，"says Richard Moe，the president of the National Trust．
With some exceptions，the oldest homes tend to be the （59）Denergy-efficient．Houses built before 1939use about 50% more energy per square foot than those built after 2000，mainly due to the tiny cracks and gaps that （60）A over time and let in more outside （61）B．
（62）C，there are a vast number of relatively simple changes that can green older homes，from （63）A ones like Lincoln's Cottage to your own postwar home．And efficiency upgrades （升级） can save more than just the earth； they can help （64）B property owners from rising power （65）B．
0 138644 138652 138658 138662 138668 138670 138674 138680 138682 138688 138694 138698 138700 138704 138710 138712 138718 138722 138724 138728 138730 138734 138736 138738 138739 138740 138742 138743 138744 138746 138748 138752 138754 138758 138760 138764 138770 138772 138778 138782 138784 138788 138794 138800 138802 138808 138812 138814 138820 138824 138830 138838 151629
An enormous amount of energy and resources went into the construction of those houses．And it would take an average of 65years for the （53）A carbon emissions （排放） from a（an） （54）Cenergy-efficient （节能） home to make up for the （55）D lost by destroying an old one．
So in the broadest sense，the greenest home is the one that has already been built．But at the same time，（56）A half of US carbon emissions come from heating，cooling and powering our （57）C，offices and other buildings．"You can't deal with climate （58）D without dealing with existing buildings，"says Richard Moe，the president of the National Trust．
With some exceptions，the oldest homes tend to be the （59）Denergy-efficient．Houses built before 1939use about 50% more energy per square foot than those built after 2000，mainly due to the tiny cracks and gaps that （60）A over time and let in more outside （61）B．
（62）C，there are a vast number of relatively simple changes that can green older homes，from （63）A ones like Lincoln's Cottage to your own postwar home．And efficiency upgrades （升级） can save more than just the earth； they can help （64）B property owners from rising power （65）B．
| 51．A．terrible | B．wasteful | C．wonderful | D．useful |
| 52．A．put | B．build | C．replace | D．take |
| 53．A．reduced | B．increased | C．used | D．destroyed |
| 54．A．old | B．fashionable | C．new | D．beautiful |
| 55．A．magazines | B．trees | C．materials | D．resources |
| 56．A．nearly | B．hardly | C．rarely | D．mostly |
| 57．A．libraries | B．schools | C．homes | D．stores |
| 58．A．improvement | B．appearance | C．stability | D．change |
| 59．A．most | B．really | C．very | D．least |
| 60．A．expand | B．narrow | C．strengthen | D．weaken |
| 61．A．dust | B．air | C．smoke | D．water |
| 62．A．Oppositely | B．Unfortunately | C．Fortunately | D．Frankly |
| 63．A．historic | B．worthless | C．ordinary | D．meaningless |
| 64．A．charge | B．protect | C．punish | D．warn |
| 65．A．prices | B．costs | C．businesses | D．bargains． |