如图所示，一束光从空气斜射向水面，入射光线及法线已画出．请作出这条入射光线的反射光线和折射光线．

在横线上填上“>”“<”或“=”。

7千米____6000米   2999米____3千米   800米+400米____ 10千米

5 千米____4800米  1千米____1000米    9千米-6千米____2300米

    Jane always goes to school early. She likes to talk to her friends before class. After school she does not go home early. She is always late. Jane stops to see the animals in the pet shop. She likes to see the dogs. One of them is a little dog. She watches the little white dog play in the window of the shop. She watches for a long time, so she comes home late.

    One day her father and mother ask why she is late, and she tells them about the little dog in the pet shop.

    Jane is not late the next day. She stops to look in the window of the shop. But she doesn't see the little white dog, and she is very sad. She is also very happy, today is her birthday.

    Mother shows her a big birthday cake and Father gives her a birthday surprise. He gives the little white dog from the shop. Jane is very happy. The next day Jane does not come home late. She runs home to play with the white dog.

阅读下面的材料，根据要求写一篇不少于800字的文章。

    春节期间，全国上千个城市禁放限放烟花爆竹。“前村后村燎火明，东家西家爆竹声”的景象或将成为历史，而共坐守岁观春晚、指尖飞舞抢红包、阖家驱车寻胜景，已成为新春新风景甚至新传统。无需拉开太长的历史视野，我们就能感受到习俗、传统的悄然改变。

要求：综合材料内容及含意，选好角度，确定立意，明确文体，自拟标题，不要套作，不得抄袭，不得泄露个人信息。