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山东泰安2017届高三期末检测英语试题,http://www.170xue.com
Linacre studied the Namib beetle and found that it had hydrophilic (吸水的) skin on its back，which helped catch water molecules(分子)passing in the air．These water molecules accumulated into small drops of liquid water．He realized that as long as the air temperature was low enough，even the driest air contains water molecules that can be extracted (提取)．
Following this principle，he designed the new system which works by pumping air through a network of underground pipes to cool it to the point at which water condenses．The water is then delivered directly to the roots of plants．
According to the research，about 11．5 milliliters of water could be collected from every cubic meter of air in the driest desert．Further development could raise that number even higher .
The idea of getting water from the air is not new．However，the Airdrop has certain advantages compared with its competitors．Similar systems often require great amounts of energy because they use refrigeration equipment to lower the temperature．But Airdrop simply uses the temperature difference between the air and the cool earth underground
71．From the text，we know that__________．
A．the Namib Desert is the driest place on earth
B．there is not any rain at all in the Namib Desert
C．it is absolutely impossible to plant crops in the desert
D．the beetle’s hydrophilic skin matters in surviving in the desert
72．The new“Airdrop”irrigation system
A．can collect morning dew in the air
B．is designed to help the Namib beetle
C．works by pumping water through pipes
D．cools air to the point at which water condenses
73．Which of the following is true of the new invention?
A．It uses refrigeration equipment．
B．It need not to be improved further．
C．It‘s likely to solve lack of water on dry land．
D．Its underground pipes don’t function．
74．What’s the main idea of the third paragraph?
A．The principle of the new invention．
B．The design of the irrigation equipment．
C．The application of“Airdrop”system．
D．The development of the new invention．
75．According to the author， the benefit of the invention is___________.
A．having advanced equipment
B．delivering water directly to plant roots
C．saving great amounts of energy
D．collecting water from the air direetly
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，山东泰安2017届高三期末检测英语试题
