Ⅱ.七选五

　　Driving with GPS Can Cause Difficulties

　　Global Positioning System (GPS) is now a part of everyday driving in many countries.It is a space­based system that provides position and time information in all weather conditions.GPS can help people get to where they want to go.

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　　When this happens，the driver is often to blame.Sometimes a GPS error is responsible.Most often，it is a combination of the two.

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　　Barry Brown，a GPS technologist，took an incident as an example.His friend once flew to an airport in the eastern United States.There he borrowed a GPS­equipped car to use.He wrongly plugged in the home address in the west.It wasn’t until he was driving for thirty minutes that he realized it.Mr.Brown says this is a common human error.But he says，“One problem is that GPS has a very small screen and it can just tell you the next turn.

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　　”

　　“The Normal and Natural Troubles of Driving with GPS” lists several areas where GPS can cause difficulties.They include maps that are outdated，incorrect or difficult to understand.

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　　GPS may fail due to these reasons and then lead to confusion for the drivers.

　　Although GPS sometimes causes difficulties when people are driving，the most attractive point of this system is its 100% coverage on the planet.It is important for you to have to know what you are doing when you use GPS.You need to have the “ability” to be able to use GPS because it sometimes goes wrong.

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