2018年高考英语（浙江专用）专题复习（真题+模拟）课件（命题规律探究+题组分层精练）:专题十二　词义推断阅读 （共170张PPT）

专题十二 词义推断阅读 高考英语(浙江省专用) * A组   2017年全国高考题组 Passage 1(2017课标全国Ⅰ,D)词数: 311 A build-it-yourself solar still(蒸馏器) is one of the best ways to obtain drinking water in areas where the liquid is not readily available. Developed by two doctors in the U.S. Department of Agriculture, it's an excellent water collector. Unfortunately, you must carry the necessary equipment with you, since it's all but impossible to find natural substitutes. The only components required, though, are a 5‘×5’ sheet of clear or slightly milky plastic, six feet of plastic tube, and a container—perhaps just a drinking cup—to catch the water. These pieces can be folded into a neat little pack and fastened on your belt. To construct a working still, use a sharp stick or rock to dig a hole four feet across and three feet deep. Try to make the hole in a damp area to increase the water catcher's productivity. Place your cup in the deepest part of the hole. Then lay the tube in place so that one end rests all the way in