Lit Motors is developing the C­1. Its 33­year­old chief executive，Daniel Kim, was repairing a car eight years ago when a 500­pound chassis (底盘) nearly crushed (压碎) him. The experience got him considering making a smaller and lighter car.

　　Although it is welcomed by environmentalists, companies have found it hard to mass­produce affordable and practical fully­electric vehicles. But Lit Motors with just 10 people on staff thinks it can bring the benefits of an electric vehicle even to those poor. Mr. Kim says his motorcycle will be money­saving，safe to drive and simple to build.

　　"The main culprit (罪魁祸首) in the high price of electric vehicles is the battery, whose technology has made slow progress, so vehicle batteries are still expensive，" said Dan Sperling, a professor of civil engineering and environmental science and policy at the University of California. He thinks another challenge is that most people are not ready to embrace electric vehicles yet. "Uulike an iPhone, it can't crash but perform with high reliability all the time." said Dan Sperling.

　　Mr. Kim has plans to overcome those obstacles. The motorcycle is lighter than a car so its batteries can be smaller and cheaper. To improve reliability, the system is equipped with more components than it actually needs.

　　The C­1's secret weapons are the gyroscopes that allow it to balance itself. Only one gyroscope is needed to maintain balance, but there are always two running. Each gyroscope has redundant computer chips, controllers and sensors, so if any one of those fails, the extras will back it up.

　　语篇解读：文章介绍了Daniel Kim正在研制的一种经济适用、安全舒适的电动摩托车。

　　1．To make the C­1 acceptable, Lit Motors is trying to ________.

　　A．make it stronger　　　　 　B．make it simpler

　　C．make it smaller D．make it cheaper

　　解析：选D　细节理解题。由第五段的"The main culprit (罪魁祸首) in the high price of electric vehicles is the battery, whose technology has made slow progress, so vehicle batteries are still expensive ..."及第六段的"The motorcycle is lighter than a car so its batteries can be smaller and cheaper."可知，C­1能够被大众接受主要是因为它价格更低，更安全可靠。

　　2．What's the purpose of the first paragraph?

　　A．To introduce an electric motorcycle.

　　B．To compare motorcycles with cars.

　　C．To show driving a car can be inconvenient.

D．To show it is dangerous to ride a motorcycle.