阅读下列材料，回答问题。

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》

材料二：如图。

材料三：汉初分封的诸侯国，势力逐渐膨胀，对皇权构成严重威胁。像汉武帝的叔叔梁王出行则千乘百骑，和天子一样威风。

──摘编自人教版历史七年级

通知

本周五下午三点，特邀知名作家来我校作报告，与广大师生分享读书心得。请全体师生准时参加报告会。

学校办公室2018年4月20日

①格式上：____；

②内容上：____。

不经意间，我们已经跨入青春期的大门，开始了人生最美丽的春天。下列对青春期理解正确的是（    ）

根据短文理解, 从A、B、C三个选项中选择最佳答案填空。

    Miss Richards was a teacher at a school for boys and girls. She 1 chemistry and physics from the lowest to the highest classes in the 2. Sometimes the new classes 3 rapidly, but sometimes they were very 4, and then Miss Richards had to 5things many times.

    One year, the first class had been studying chemistry for several 6 when Miss Richards suddenly asked, "What is water? Who knows? 7 up!"

    There was silence for a few seconds, and Miss Richards felt sad, but then one boy 8 his hand.

    "Yes, Dick?" said Miss Richards encouragingly. He was not one of the brightest children in the class, so she was 9 that he could answer.

  "Water is a liquid which has no 10 until you wash your hands in it, Miss. Then it turns black, "the boy replied with great confidence.

Last night, we w____home at 11:30.