、七选五（本大题共1小题，共10分）

　　根据短文内容，从下框的A~F选项中选出能概括每一段主题的最佳选项，并在答题卡上将该选项涂黑。选项中有一项为多余项。

　　38.

　　Modern technology does bring us many conveniences, from WiFi enabled cell phones and ever smaller laptop computers that make entire lives easy to energy efficient washers that use half the power and time to complete their tasks. However，these new toys and equipment finally become electronic waste (ewaste) once

　　they are out of use.

　　39.

　　Ewaste includes everything from empty printer ink containers to broken refrigerators. As people buy new items to replace aging electronics or make upgrades（升级），more electronic waste comes into being. In some cases，such as 2009's switch from analog（模拟）to digital television broadcasting in the United States，changes in technology are so great that old equipment may not even work at all with new systems.

　　40.

　　There are many reasons why it is important to recycle electronic waste. Much of the material used to construct electronics，including metal and plastic parts，can be recycled into new items at a discount of the cost and energy use needed to create things from new raw materials. Additionally，many electronics contain poisonous substances that are harmful to the environment and could be deadly if they go into an area's groundwater. When properly recycled，they can be reused and will not do harm to the environment. Because of these environmental concerns，many areas require by law that electronic waste be properly recycled.

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