公共汽车公司为了保证人们上下车时的安全，在无人售票车上安装了“车载监控器”，如图所示是该装置的示意图，图中摄像头的工作原理相当于凸透镜，它对光有 作用，所成像的性质是 （填“放大”“缩小”或“等大”）、倒立的 像（填“实”或“虚”）．为了成清晰的像，乘客到摄像头的距离应 。汽车头灯的位置安装较低，当车灯发出的光照到路面上的障碍物时，因为光 ，障碍物形成的影子较长，司机容易发现．
会聚；缩小；实；大于2倍焦距；沿直线传播。
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| I used to find notes left in the collection basket of the church, beautiful notes about my homilies (讲道) and about the writer's thoughts on the daily readings. The 1 attracted me.But it was a long time 2 I met the author of the notes. One Sunday morning, I was 3 that someone was waiting for me in the office, a young woman who said she 4 all the notes. When I saw her I was 5 , since I had no idea that it was she who wrote the notes. She was sitting in a chair in the office. Her 6 was bowed and when she raised it to look at me, she could hardly 7 without pain. Her face was disfigured (畸形), so smiling was very 8 for her. We 9 for a while that Sunday morning and agreed to meet for lunch later that week. As it 10 , we went to lunch several times, and we shared things about our 11 . We spoke of authors we were both 12 , and it was easy to tell that 13 are a great love of hers. She suffered from a disfigurement that cannot be made to look 14 . I know that her condition 15 her deeply. Yet there was a beauty to her that had nothing to do with her 16 . She was one to be listened to, whose words came from a wounded 17 loving heart. She possessed a fine tuned sense of beauty. Her only 18 in life was the loss of a friend. The truth of her life was a desire to see beyond the 19 for a glimpse (瞥) of what it is that matters. She found beauty and grace, 20 befriended her and showed her what is real. | ||||
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