山东省2016届高三外研版英语单元测试Book2 Module4《Fine Arts—Western Chinese and Pop Arts》Word版含解析_高考复习指南

　　Which of the following orders correctly shows how the artificial leaf is used to produce electricity?

　　a．artificial leaves split water into hydrogen and oxygen

　　b．the hydrogen and oxygen gases are stored in a fuel cell

　　c．the artificial leaves are put in water

　　d．the fuel cell uses hydrogen and oxygen to produce electricity

　　A．c，b，a，d

　　B．c，a，b，d

　　C．b，c，a，d

　　D．c，a，d，b

　　Which of the following statements about new artificial leaves is NOT WRONG according to the article?

　　A．They are inexpensive but unstable.

　　B．They are as efficient at carrying out photosynthesis as natural leaves.

　　C．They can work only in pure water.

　　D．They need several catalysts to help them work efficiently.

　　43．The purpose of the scientists at MIT in developing the new artificial leaf is to________.

　　A．build up more power stations in the world

　　B．provide cheaper energy for developing countries

　　C．offer people in developing countries access to pure water

　　D．gain a deeper understanding of the photosynthesis process

　　44．The main idea of this passage is ________.

　　A．an introduction to the history of artificial leaves

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