雅思托?？荚囀菄H性英語標準化水平測試之一，參加考試和報班學習的學子眾多，那么雅思劍14流程圖題目例文參考：水力發(fā)電？下面是由小編為大家整理的相關(guān)信息，僅供參考，歡迎大家閱讀本文。

但是仔細分析之后不難看出，本題展現(xiàn)的其實是兩個不同的工作原理：白天工作原理和晚上工作原理。分析出這一點，那么本題的寫法自然就清晰得多了。如下例文供大家參考：

The working theory of a hydropower station built on a river is demonstrated by this flow chart. The operating mode of it varies fromthe daytime to the night. （開頭段先是改寫題目，再一句點出本題其實介紹的是白天黑夜兩個不同的工作原理。）

By daylight, water stored in a high-level reservoir initially flows downstream through the intake under the dam, and then drives turbines, and finally arrives at a low-level reservoir. These turbines, powered by the water flow, can correspondingly operate agenerator in the power station. The electricity produced, in the last step, will be transferred to the National grid through power lines.（主一段著重于白天工作原理的描寫。）

By night, water in the low-level reservoir can be pumped upstream to the high-level reservoir through the same riverway by turbines designed to be able to operate both clockwise and anticlockwise. In thisprocess, these turbines spin in the opposite direction as the daytime. The intake under the dam is a non-return one, which is closed at night in order to ensure that water can flow into thehigh-level reservoir, but not out.（主二段自然是聚焦于夜晚工作原理的描寫。本段需要注意的是反轉(zhuǎn)的渦輪和閉合的intake。這些都是圖中細節(jié)，不應(yīng)該忽視。）

Tosum up, the power station functions in totally opposite ways in the daytime and at night. In the whole process, water is utilized as the energy carrier, which at first releases its gravitational energy toproduce electricity and then helps transform electricity intogravitational energy. （結(jié)尾段總括全文，揭露出這個工作原理的本質(zhì)。）

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