题型:阅读选择 题类:常考题 难易度:普通
湖南省长沙市中雅培粹学校2020-2021学年九年级下学期英语入学考试试卷
WithCOVID-19 threatening the world, researchers have worked on technology that canprotect our environment improve the quality of medical care, or simply make ourlives more convenient. Scientific American has chosen 10 new technologies thatwill change our future. Let's take a look at some of them.
Green hydrogen绿色氢
Whenwe bum hydrogen for energy, the only by-product (副产品)iswater. If s safe for the environment. But the process of producing hydrogen isbad for the environment. "Green" hydrogen might be the solution.
Greenhydrogen is produced by using machines to split (分开)water into its two most basic element hydrogen and oxygen(氧). In the past, this process took so much electricity that it didn'tmake sense to do it. But now, we have moreefficientmachines so that we can produce hydrogen in a cleaner and moreenvironmentally-friendly way.
Spatialcomputing 空间计算
Someof you might be familiar with augmented reality(增强现实),or AR. Computers use AR to put a virtual lager(虚拟层次) ontop of the real world, such as when you use an app to control the lights yourhome. A new kind of computing called spatial computing will combine AR with theinternet of things to make daily life at home even more automated (自动的).
Withspatial computing, it is possible to make a digital (数字的) "map" of an environment, such as your home or ahospital. Using this map, computers can "see" what's happening in thereal environment and change it properly. For example, your home's computercould turn up the heat if it sees that your body temperature is low.
John is twelve years old. He had a bad cold and coughed (咳嗽) day and night. He went to see a doctor. The doctor gave him some cough medicine(药物).
Cough Medicine Shake it well before use. Take it three times each day before meals. | |
Age | Dose(药量) each time |
over 14 | 2 teaspoonfuls(勺) |
8-13 | 1 teaspoonful |
4-7 | 1/2 teaspoonful |
Not right for children under the age of three. Put it in a cold place. Use it before December 1st 2026. |
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