Batteries are included, but the charger’s not. The Nokia E-Cu concept phone doesn’t need to plug in; it charges from any heat source. Designer Patrick Hyland says it can even work off the warmth of your pocket. The first time“it would take approximately seven hours to reach full charge, then after that it’s continuously charging by keeping the phone in areas between 86 degrees and 104 degrees Fahrenheit. ”That’s one hot pocket.
He’s put a thermo generator(热偶发电器)inside the phone that transforms heat into electric potential energy. To better conduct the heat to that little power plant in your pocket, the E-Cu(E for energy, Cu for copper)is coated by copper backing with heat sinks like those normally used to keep electronics from overheating.
Nokia doesn’t have current plans to build the phone, so for now it remains a concept. But Hyland says he’s open to anyone who wants to cooperate.
For Americans this technology would certainly be convenient. It would also save a bit on energy bills and waste. ”Annually, unwanted phone chargers produce 51, 000 tons of waste in addition to the greenhouse gases created by the production of the electricity needed to charge them, ”Hyland says. So a charger-free phone is also a green phone. Though adapting our plug-in habits would help a group of people, most cell phone related energy use comes from leaving your charger plugged in all day unnecessarily.
The real potential for charger-free cell phone technology is what it could enable places where plugging in isn’t an option, like rural areas in the developing world.
Cell phones are spreading faster than power lines and bringing with them countless opportunities, aid and health advances. A phone like the E-Cu, if it ever comes to be, would enable all manner of expanded aid and development by phone projects. Let’s hope Patrick finds a partner.

What do we know about the E-Cu phone?

A．It doesn’t have a battery or a charger.

B．It is properly marketed and sells well.

C．It’s continuously charging from any area.

D．It has a highly conductive copper cover.

What’s the function of the underlined part “heat sinks” in Paragraph 2?

A．To give off heat.	B．To measure heat.
C．To turn up heat.	D．To supply heat.

【改编】The most benefit of the Nokia E-Cu concept phone is     .

A．It would be a hit as soon as this kind of phone was produced.

B．It is friendly to the environment, because it is free of charge.

C．It charges from any heat source instead of traditional way of charging.

D．It must be welcomed by people in rural areas in the developing world.

From the last two paragraphs we can know that   .

A．Patrick is not ready to cooperate with others

B．power lines spread every corner of the world

C．phone projects may help solve the energy crisis

D．phones like the E-Cu have huge potential benefits

What is the best title of the text?

A．Designer Patrick Hyland

B．Charging Your Phone from Pockets

C．Nokia Concept Phone on Sale

D．Benefiting from Phone Technology