[解析]
(1)C.细节理解题。根据原文第二段The soon﹣to﹣be seventh grader says she became inspired to make the invention after watching the news that babies were being left in hot cars,often by accident.(这位即将上七年级的学生说,她是在看到新闻说婴儿被遗弃在炎热的汽车里(通常是意外事故)后产生了发明这个发明的灵感。)可知C.To help stop babies dying in hot cars.(帮助防止婴儿死在炎热的汽车)正确。故选C.
(2)A.推理判断题。根据原文第三段Lydia's device is started when it senses the weight of the child and the temperature setting reaches over 100℉(38℃).At that point,an alarm goes off and a warning is sent via SMS to the parents.If the parents don't reset the device within 60 seconds,a built﹣in GPS chip sends a message to local authorities with the vehicle's location.(当莉迪亚的设备感应到孩子的体重,温度设置超过38℃时,就会启动。这时,警报就会响起,并通过短信向父母发送警告。如果父母在60秒内没有重置设备,内置的GPS芯片就会向当地政府发送汽车位置信息。)可知这段讲的是她设计的产品工作原理是怎样的。A.How it works.(它是如何工作的)正确。故选A.
(3)B.细节理解题。根据原文倒数第二段She decided to use her prize money to continue making improvements on the device,which would sell for only about $40.(她决定用奖金继续改进这个设备,它的售价只有40美元左右。)可知这种座椅售价会比较便宜。B.It will be more affordable.(它会很实惠)正确。故选B.
(4)D.推理判断题。根据原文最后一段Lydia hopes that her work will inspire more kids of her age to make their ideas come true. "Don't think that you have to accept things in the world.If there is something that bothers you,think of ways to make it better!"(莉迪亚希望她的工作能激励更多同龄的孩子实现他们的想法。"不要认为你必须接受这个世界上的东西。如果有什么事情困扰着你,那就想办法让它变得更好!")可知莉迪亚告诉读者要有创造性思维。因此D.Creative thinking is the key to success.(创造性思维是成功的关键)正确。故选D.