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Chinese government is also working together with other countries and international organizations to ________　________　________　________(提供便捷简单的方式)hospitals and clinics for low-income families ________　________　________．(生活在贫困中的)

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Language experts have different answers．Some believe that we ________　________　________(具备)a special ability to learn language and that our brain ________　________　________(使自己适应)the language we hear around us．

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And, perhaps most puzzling of all, how were we able to ________　________　________(搞懂…的意思)what we heard and ________ the mistakes and errors ________(区分)“good”language?

完成句子Our bond ________　________　________(追溯到，起始于)the time when we were both poor and ________　________　________　________(乐于如此)

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________　________　________　________　________(在1845年的秋天), we ________　________　________(出发)our journey across the continent．

　　Superman isn’t the only one who can see through solid matter．Researchers in Atlanta, Ga, have invented a radar flashlight that can detect a person’s presence through walls and doors．

　　Radar is 　　1　　 for radio detecting and receiving．The radar flashlight gives 　　2　　 radio waves, some of which are 　　3　　 by solid materials and some of which penetrate(穿透)materials 　　4　　 in thickness from clothing to walls and doors．The penetrating radio waves then bounce off people and objects on the other side of walls and doors and are reflected back through those 　　5　　 to the radar flashlight．

　　To 　　6　　 whether a living person is behind a barrier, the device uses a computer chip to analyze the reflected radio waves．The chip is programmed to 　　7　　 slight variations in radio reflections that indicate a heartbeat or respiration and the process of breathing．

　　“These 　　8　　 make the flashlight potentially useful to police officers in ambush(埋伏)situations and to prison guards doing bed checks,”said Gene Greneker, a researcher at the Georgia Institute of Technology．

　　Other uses for the technology include 　　9　　 people in a room during a hostage situation, based on radar reflections of their movement or breathing, and finding 　　10　　 in the ruins of earthquakes, fires, or accidents．

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She stood in the middle of the stage looking a________(完全地)terrified after the accident．

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The a________(平均的)age of the boys in this class is 12．

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The accident has left Hanson p________(永久地)disabled(残疾的)．

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All the boys and girls burst into l________(大笑)on hearing the humorous story．