Underground farming，as the name may suggest，is the practice of growing food underground. （1）DD.Food can then be grown in stable，predictable and sustainable ways there.
Until recently，underground farming is a recent and important trend，but why？Because of its potential（潛力） and the benefits that it brings.
?（2）BB.
It has been estimated that even if cities were to build rooftop greenhouses on every possible building and fill the parking spots with growing containers - it would only be able to reach around 5% of the crop requirements of the city. （3）EE.Rooftop greenhouses，on the other hand，require buildings that have very large flat roofs and are strong enough structurally，yet most buildings simply don't have jye.ai.That's where underground farms stand out.They require less surface space and can be applied to almost any new building.
?Lowers Heating Costs for Building Above
Even the most efficient LED lights generate waste heat，which means that they heat up the farm，and for most modern indoor farms that's a major issue because not only energy is lost through lighting，but it's also required to cool down the farm. （4）FF.Besides，people are working on ways to recycle the waste heat in order to help heat the building above and reduce its energy.
?Enables Farming in Unfriendly Environments
Obviously when going under a certain depth，the weather and environmental conditions of the surface have no effect on the growing environment.（5）GG.
A.Replaces rooftop greenhouses.
B.Increases the urban farming capacity （容量）.
C.Underground farms have a big advantage here.
D.It aims at creating stable underground environments.
E.Growing in cities is highly limited due to less empty space.
F.Underground farms can reduce that waste of energy as much as possible.
G.So it's possible to build productive farms in deserts and even mountainous areas.
【考點(diǎn)】人與自我．
【答案】D；B；E；F；G
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/5/23 20:38:36組卷：7引用：1難度：0.5
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