17.An environmental group called the Food Commission is unhappy and disappointed because of the sales of bottled water from Japan.The water,it angrily argues in public,has traveled 10,000"food miles"before it reached Western customers.Transporting water halfway across the world is surely the extremely stupid use of fuel when there is plenty of water in the UK.It is also worrying that we were wasting our fuel by buying prawns from Indonesia (7,000food miles ) and carrots from South Africa (5,900food miles).
Counting the number of miles traveled done by a product is a strange way of trying to tell the true situation of the environmental damage due to industry.Most food is transported around the world on container ships that are extremely energy efficient.It should be noticed that a ton of butter transported 25miles in a truck to a farmers'market doesn't necessarily use less fuel on its journey than a similar product transported hundreds of miles by sea.Besides,the idea of"food miles"ignores the amount of fuel used in the production.It is possible to cut down your food miles by buying tomatoes grown in Britain rather than those grown in Ghana.The difference is that the British ones will have been raised in heated greenhouse and the Ghanaian ones in the open sun.
What is the idea of"food miles"does provide,however,is the chance to cut out Third World countries from First World food markets.The number of miles traveled by our food should,as I see it,be regarded as a sign of the success of the global trade system,not a sign of damage to the environment.

9.The Food Commission is angry because it thinks thatD.
A.UK wastes a lot of money importing food products
B.some imported goods causes environmental damage
C.growing certain vegetables causes environmental damage
D.people wasted energy buying food from other countries
10.The phrase"food miles"in the passage refers to the distanceA.
A.that a food product travels to a market
B.that a food product travels from one market to another
C.between UK and other food producing countries
D.between a Third World country and a First World food market
11.By comparing tomatoes raised in Britain and in Ghana,the author tries to explain thatC.
A.British tomatoes are healthier than Ghanaian ones
B.Ghanaian tomatoes taste better than tomatoes ones
C.cutting down food miles may not necessarily save fuel
D.protecting the environment may cost a lot of money
12.From the passage we know that the author is most probablyA.
A.a supporter of free global trade
B.a member of a Food Commission
C.a supporter of First World food markets
D.a member of an energy development group.
15.Not only fashion and music are making a return-houses built in 1970s have proven to be better at cutting energy waste than those built today.The"tea cosy (茶壶套)"design,created in the mid-1970s and built in the early 1980s for low-income people,could provide a blueprint for meeting the Government aims of producing less CO2 from homes.
The 200 houses were designed to provide low-energy housing,and depend on an inner concrete (水泥) structure that holds in heat,protected by highly insulated (隔热的) setting which produces a"tea cosy"effect.The ordinary-looking houses also depend on more windows on south-facing sides,with northerly facing doors protected by porches (门廊).
A study found the houses are 50 percent more energy efficient than the average home and use a quarter of the average energy for space heating.According to researchers,they use less than two-thirds of the power of homes built to meet 2010 building demands.And they will still be 25 percent more efficient than houses built to even more strict proposed demands for 2013.The design is one of the few that will be able to meet 2016 demands for zero-carbon homes.
They were in the beginning fixed with just one or two gas heaters per home,although most now have central heating,depending on the heat from the sun and high insulation to keep steady temperatures inside the house.To be comfortable,they only need to use heating for three to four months a year,compared with seven months for UK home on average,and can be lived with no heating at all.
With many house builders at present worrying that new homes are going to be much more expensive to build in order to meet the Government's ambitious targets,the"tea cosy"model meets this need perfectly.
19.The underlined word"blueprint"is closest in meaning toB.
A.photo        B.model      C.service      D.map
20.The writer develops Paragraph 3 mainly byD.
A.analyzing data
B.giving examples
C.presenting reasons
D.making comparisons
21.According to the passage,"tea cosy"houses are better atA.
A.saving heat for energy efficiency
B.producing solar energy at home
C.designing and building materials
D.saving building materials and energy.
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