The walls are to be built from new load-bearing steel frames and high-strength gypsum(石膏) board.Prof Wilkins said，“If there are any problems，the intelligent sensor network will be able to alert residents immediately so they have time to escape.If whole groups of houses are so constructed，we could use a larger network of sensors to get even more information.If the house falls down，we have got hand-held devices that can be used over the ruins to pick out where the embedded(嵌入的) sensors are hidden to get some information about how the villa collapsed.Also，we can get information about anyone who may be around，so it potentially becomes a tool for rescue.”

　　1．The aim of the passage is to ________.

　　A．report a piece of interesting news

　　B．promote tremor-resistant homes

　　C．inform us of the nanotechnology development

　　D．tell us something about a tremor-resistant home

　　答案　D

　　解析　根据文章的大体内容，主要讲了防震别墅的功能及原理。

　　2．The villa can resist earthquakes because ________.

　　A．it will be built on a special place

　　B．the cracks in its walls can be healed by the polymers

　　C．the special particles can make its walls stronger

　　D．the intelligent sensor network can tell people where there is a crack

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