小站备考
托福
托福写作
托福Delta 写作
红DeltaTest2综合写作Summarize the points made in the lecture you just heard, explaining how they contrast with points made in the reading.作文范文+答案解析
收藏
笔记
反馈
Directions: You have 20 minutes to plan and write your response. Your response will be judged on the basis of the quality of your writing and on how well your response presents the points in the lecture and their relationship to the
reading passage. Typically, an effective response will be 150 to 225 words.
Summarize the points made in the lecture you just heard, explaining how they contrast with points made in the reading.
题目原文：
A hydropower facility consists of a plant for electricity production and a water reservoir formed by a dam in a river. The dam has gates that can open or close depending on how much water is needed to produce a certain amount of electricity. The electricity is transported through transmission lines to an electric utility company.Hydropower is very convenient because it can respond quickly to fluctuations in demand. The production of hydroelectricity is increased on hot summer afternoons when power is needed for air conditioners and decreased at night when people use less energy. The reservoir of water behind the dam is stored energy that can support fisheries and provide various forms of water-based recreation for local residents and tourists. Thus, hydropower reservoirs contribute to the local economy and quality of life.Hydroelectricity is “clean and green.” Once the system has been installed, the burning of fossil fuels is not required to produce the electricity. Hydropower is good for the environment because it does not release greenhouse gases into the atmosphere nor produce waste that requires special containment, as do other forms of energy production. After the water powers the turbines, it simply returns unchanged to the water cycle.Hydroelectric power is also very efficient and relatively inexpensive. The earth’s water cycle naturally replenishes the supply of “fuel” water. Wherever enough rain falls, there will be rivers. If a particular section of river has the right terrain to form a reservoir, it may be suitable for dam construction. Modern hydroelectric turbines can convert as much as 90 percent of the available energy into electricity. In contrast, the best fossil-fuel plants are only about 50 percent efficient.
题目音频：
00:00
/
00:00
听力原文
