11．The unthinkable keeps happening．The 18th hot car death of the year was recorded Thursday---on the same day a national public service campaign started．It is meant to warn parents about the dangers of leaving kids in overheated cars．In the latest unfortunate accident，a 10-month-old girl died in Wichita，Kan，after being left by her parents in a car that was parked outside her house．The baby was forgotten，according to the police．
One New Mexico teenager's creation called"Hot Seat"might someday prevent such deaths．Alyssa Chavez，a 17-year-old from Albuquerque，said she designed a warning system that might stop people from accidentally leaving their young children in the car after they get out of it．
Chavez，whose mother owns a day-care center，said she had heard about the deaths of three children in hot cars in summer．"I felt that would be a good project for my eighth-grade science fair project---to find something to prevent those accidents from happening，"said Chavez．
She bought a door alarm （警报器） and began to design her new warning system．Finally，she won the science fair．And for the last three years，she's been improving the design and creating a business plan．
The invention works in a simple but effective way．A parent places a sensor pad （感应垫） under the cover of a baby car seat．The pad has a sensor that communicates with a key fob （饰物） carried by the parent to find out how far the parent is from the car．If the parent is more than 40feet away from the car，the pad will check to see if it feels the child in the seat．If it doesn't，the alarms will not sound．If it does，then three alarms will go off---the key fob，the parent's phone and the car alarm itself．Chavez is now trying to raise money to build a model Hot Seat．
28．What can we say about the 10-month-old girl's parents？A
A．They were too careless．
B．They treated her unkindly．
C．They had poor driving skills．
D．They were against the campaign．
29．Chavez's warning systemB．
A．was suggested by her mother
B．was designed in her eighth grade
C．works together with a door alarm
D．has helped her earn a lot of money
30．If a baby is sitting in the car，the alarms will go off whenD．
A．the car key is taken out
B．its parent gets out of the car
C．the pad feels it on the car seat
D．its parent is over 40 feet away
31．What is the text mainly about？D
A．An interesting science fair project．
B．A national public service campaign．
C．An unfortunate accident in Wichita．
D．A successful invention by a teenager．
分析 本文属于说明文阅读，作者通过这篇文章主要向我们描述了少年查韦斯在他八年级的时候发明了查韦斯预警系统，可以防止父母在离开车后意外地把自己的孩子留在车里．
解答 28．A．推理判断题．根据第一段：a 10-month-old girl died in Wichita，Kan，after being left by her parents in a car that was parked outside her house可知一个10个月大的女孩在威奇塔，坎河死了，被她的父母遗忘在一辆停在她的房子之后；因此父母是十分粗心的；故选A．
29．B．细节理解题．根据第三段：I felt that would be a good project for my eighth-grade science fair project---to find something to prevent those accidents from happening可知查韦斯预警系统在她第八年级的设计；故选B．
30．D．细节理解题．跟最后一段：If the parent is more than 40feet away from the car，the pad will check to see if it feels the child in the seat可知如果家长多40feet远离汽车，垫将检查它是否认为孩子在座位上；故选D．
31．D．主旨大意题．文章主要讲了少年查韦斯在他八年级的时候发明了查韦斯预警系统，可以防止父母在离开车后意外地把自己的孩子留在车里；故选D．
点评 本文是一个人物故事类阅读理解，题目涉及多道细节理解题，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．
