剑12流程图：地热能发电的工序

剑12 P92

地热能发电的工序

高分范文

The diagram is an illustration of the production of electricity using geothermal energy.

The production begins with the injection of cold water, stored in an aboveground tank, through the injection well to a depth of 4.5 kilometers [“4.5公里的深处”] under the ground. The water then flows [“流淌”] through the geothermal zone, a layer of hot rocks [同位语] , and is heated. The next step is to pump the heated water up via [“经过”，介词] the production well, which is of the same depth as the injection well, to the condenser. At this point, the water is condensed [“冷凝”，及物动词] into steam. Next, powered by the steam [动词分词作状语], the turbine spins [“旋转”，不及物动词] and drives the generator, and as soon as the generator starts working, electrical power [“电能”] is produced. Finally, electricity is transmitted [“传送”，及物动词] through wires on the pylons [“电塔”].

Overall, the generation of electricity using geothermal energy is a complex process, going through [引导伴随状语] a number of pieces of equipment. [生产工序类流程图：总结生产过程的繁简，以及生产设备的多少]

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流程图小作文的表述得分要素在于：

1)    句型设计：带有图中信息的修饰语、状语；

2)    动词 和 动词对应的名词，表示程度的/正负评价的形容词不是词汇重点。

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