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问题标题: 高中英语 已解答 年级: 高中一年级
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回答教师: 池老师 解答时间:2018-02-13 21:24 提问人:liqiao421
问题内容:  

A buildityourself solar still(蒸馏器) is one of the best ways to obtain drinking water in areas where the liquid is not readily availableDeveloped by two doctors in the USDepartment of Agricultureit's an excellent water collectorUnfortunatelyyou must carry the necessary equipment with yousince it's all but impossible to find natural substitutesThe only components requiredthoughare a 5'×5'sheet of clear or slightly milky plasticsix feet of plastic tubeand a containerperhaps just a drinking cupto catch the waterThese pieces can be folded into a neat little pack and fastened on your belt

      To construct a working stilluse a sharp stick or rock to dig a hole four feet across and three feet deepTry to make the hole in a damp area to increase  the water catcher's  productivityPlace your cup in the deepest part of the holeThen lay the tube in place so that one end rests all the way in the cup and the rest of the line runs upand outthe side of the hole

      Nextcover the hole with the plastic sheetsecuring the edges of the plastic with dirt and weighting the sheet's center down with a rockThe plastic should now form a cone(圆锥体) with 45degreeangled sidesThe low point of the sheet must be centered directly overand no more than three inches abovethe cup

      The solar still works by creating a greenhouse under the plasticGround water evaporates (蒸发) and collects on the sheet until small drops of water formrun down the materialand fall off into the cupWhen the container is fullyou can suck the refreshment out through the tubeand won't have to break down the still every time you need a drink

 

32What do we know about the solar still equipment from the first paragraph     

AIt's delicate

BIt's expensive

CIt's complex

DIt's portable

33What does the underlined phrase"the water catcher"in paragraph 2 refer to    

AThe tube                

BThe still

CThe hole                        

DThe cup

34What's the last step of constructing a working solar still    

ADig a hole of a certain size                    

BPut the cup in place

CWeight the sheet's center down                 

DCover the hole with the plastic sheet

35When a solar still worksdrops of water come into the cup from     

Athe plastic tube                      

Boutside the hole

Cthe open air                         

Dbeneath the sheet


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答案内容:  

同学你好!解析:

本文是一篇说明文,论述了自制蒸馏器的组成成分及工作程序.

【解答】32细节理解题.根据第一段第三句前半句 Unfortunatelyyou must carry the necessary equipment with you …可知,太阳能蒸馏器设备必须被携带,因此其是可以携带的,其余选项文章均未提及,故正确答案为D

33推理判断题.根据第二段划线词组前面的句子可知,其为蒸馏器的制作过程以及放置地点.后面的 increase productivity 为增加产量,因此可以推断该词组为蒸馏器,故正确答案为B

34细节理解题.根据文章第三段第一句后半句 …weighting the sheet\'s center downwith a rock 可知,用石头让塑料布中心下降是制造太阳能蒸馏器的最后一步,后文没有再介绍制造过程,故正确答案为C

35细节理解题.根据文章随后一段第二句 Ground water evaporates and collectson the sheet until small drops of water formrun down thematerial and fall off into the cup 可知,地面上的水蒸发并且在塑料布上,形成小水滴后落在杯子里,因此可以得知水滴来自塑料布下方,故正确答案为D

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