材料一：秦王扫六合，虎视何雄哉！挥剑决浮云，诸侯尽西来。

——李白《古风》诗

材料二：

材料三：“臣愚以为诸不在六艺（六经）之科、孔子之术，皆绝其道，勿使并进。邪僻之说熄灭，然后统纪可一，民之所从矣。”

——《汉书．董仲舒传》

材料四：……惜秦皇汉武，略输文采；唐宗宋祖，稍逊风骚……

——***《沁园春·雪》

设数列{a_n}的前n项和为S_n，已知数列{S_n}是首项和公比都是3的等比数列，则{a_n}的通项公式a_n=____ 

根据①木炭、②红磷、③铁、④硫四种物质在氧气中燃烧时的现象填空．能生成使澄清石灰水变浑浊的气体的是____ （填物质名称，下同）；能生成无色、带有刺激性气味的气体的是____ ；产生明亮的蓝紫色火焰的是____ ；产生浓厚白烟的是____ ；能生成黑色固体的是____ ；有白色固体生成的是____ 

【品味生活  感悟人生】

材料一：学校知心姐姐信箱最近收到了一封信，大致内容如下：我叫李静，是一名初三的学生，成绩比较好。中考临近，同学们不断向我请教学习上的问题。为了不浪费时间，保证自己的竞争优势，我婉言拒绝了他们。现在渐渐感觉同学们都疏远我了，老师也教育我，说我不团结同学，不懂得合作。我现在该怎么办呢？

材料二：美国前总统林肯有一次外出，路边有一个身穿破烂衣衫的黑人老乞丐对其行鞠躬礼，林肯一丝不苟地脱帽对其回礼。随员对总统的举止表示不解，林肯说：“即使是一个乞丐，我也不愿意他认为我是一个不明事理的人。”

材料三：有人说，尊重是一朵花，一朵开在心间的花；有人说，尊重是一条路，一条通往美好的路；尊重是一团火，一团温暖你我的火。可见，学会了尊重，不仅可以使自己成为一个有道德、守纪律、受欢迎的人，也会使我们获得人生的幸福。 

 Liu Wei is very famous in China because he can play the piano with his toes(脚趾).

 One day when Liu Wei was only 10 years old, he played a game with some friends. He lost both his arms because of electricity.

 Liu Wei was very sad when both his arms were cut off after the accident. But soon he had to make a choice.

“For people like me, there were only two choices. One was to give up all the dreams, which would cause a quick death. The other was to work hard without arms to live an excellent life.”says Liu Wei.

 Liu Wei’s dream was to be a pianist. He learned to play the piano with his toes. And teaching himself to play the piano with his toes was very hard. Many times he wanted to give up, but his parents went on encouraging him and he wanted to make his parents proud.

 Maybe you can not believe that Liu Wei is able to play well only with his toes. The audience(观众) were deeply moved and very excited when they watched his performance.