空中英语教室：酷炫又便宜的手提电脑
Cool, Cheap Laptops
An amazing new learning tool for children around the world
Apr.21
（双击或划选你想要翻译的单词或词组即可看到注解）
Three years ago, people called MIT professor Nicholars Negroponte's goal of creating an affordable laptop for children in developing countries crazy. After all, laptop computer screens alone cost $100. Lowering this cost was only the first challenge Negroponte and the organization One Laptop Per Children (OLPC) faced.
To lower the cost of the screen, OPLC developed one that uses less power than other screens. The screen's display can appear not only in color but also in black and white for reading textbooks. Moreover, it costs only US$40 to manufacture one.
Many children in developing countries don't have a reliable source of electricity, which presented another challenge. OLPC's laptop, called the XO laptop, saves energy by not using a hard disk. Instead, files are saved on an external network or memory card.
Most important for kids, the computer is cool. Its playful green case and keyboard are waterproof. The wi-fi antennas pop up from the top and look like rabbit ears. The unique desktop environment allows students to work together easily.
Despite the crisics, Negroponte's crazy goal has become a reality: Thousands of children worldwide are already playing and learning with XO laptops.
Word Bank:
affordable(adj)买得起的；负担得起的
Mary didn't go to Japan because plane tickets aren't affordable right now.
manufacture(v)制造；生产
This factory used to manufacture cars, but now it manufactures airplanes.
shard drive(n)硬盘
The hard drive on this computer can hold 60 gigabytes of information.
external(adj)外部的
This paint is made for external use, so we can paint the outside of the house with it.
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