学校、课程、教材。

材料一：“千百年楚材导源于此，近世纪湘学与日争光。”这是长沙岳麓书院门前的一幅楹联。岳麓山在西晋以前为道士活动地，曾建有万寿宫、崇真观。唐末五代时期，僧人智璇等人为“思儒者之道”，在麓山寺下建起学舍，后在此基础上扩建诞生了岳麓书院。

    北宋咸平二年，潭州太守李允主持了书院最大一次扩建，还请得国子监的《义疏》《史记》等典籍，正式建立藏书楼于讲堂之后。宋真宗大中祥符年间，因办学成绩卓著，风闻天下，皇帝召见了书院山长周式，并赐予御笔亲书的“岳麓书院”匾额。书院还“塑先师十哲之像，画七十二贤(七十二贤是孔子门下德才出众的学生，十哲指其中最优秀的十位学生)”，并供祀本学派大师以及忠臣学者……这里走出了王夫之、曾国藩等一大批风流人物。后人称赞说：“使里人有必葺之志，学者无将落之忧。谁谓潇湘？兹为洙泗。谁谓荆蛮？兹为邹鲁(洙泗、邹鲁都代指孔孟故乡)。”

——摘编自朱汉民《岳麓书院》

材料二：1908年，商务印书馆出版《女子国文教科书》，是中国最早的专门为女子教育而编订的教材之一。其第六册目录如下：

注：(该课正文)雅丽,北美洲之女子也。华盛顿起兵时,雅丽方七岁。一日,携鸡卵一筐以见华盛顿,曰,将军为国民之事,劳苦甚矣,今备不腆之仪敬询将军。遂指鸡卵以示华盛顿曰，此中有物，可碎其壳而食也。华盛顿惊感待以殊礼。

材料三：中世纪的学校是培养修士和神父的地方，各种年龄的年青人和一位教师坐在一起，能学多少学多少。15，16世纪，欧洲学校教育开始按年龄和程度分班，每班有各自的教师，学生定期升级。拉丁文仍是主课，又增加了希腊文、历史和道德哲学。学习拉丁文(以及希腊文)是为了能够阅读抒情诗、演说、信札、历史以及哲学论文等古代著作，而这些著作为每一代受教育的精英提供实用的教训，他们或成为未来的大臣、外交官，甚至成为统治者本人。经过改革的教会认为，每一个个体都必须会阅读并靠自己的能力来理解经文。此时几乎欧洲每个地区都有了自己的大学。在许多捐赠奖学金的推动下，英国的文法学校(相当于中等教育)，法国的专科学校在城市中纷纷建立。一些私立学校成为向工匠和商人传授必要技能的地方。有的学校为穷孩子保留了房间，并向他们提供简单的就业机会，以解决学费问题……牛津大学学生中约半数是“平民”。其中一些人获得了国王授予的不能继承的贵族头衔，从而有了较高的社会地位。

——摘编自(美)帕尔默《欧洲崛起：现代世界的入口》等

根据相反数的知识，回答下列问题

（Ⅰ）试判断哪个函数模型更合适，并求出该模型的解析式；

（Ⅱ）求凤眼莲覆盖面积是元旦放入面积10倍以上的最小月份．

（参考数据：lg2≈0.3010，lg3≈0.4771）

阅读理解

    I had to knock on the taxi to get his attention. Finally, the driver, a man about 60, looked up from behind the wheel and apologized, “I'm sorry, but I was reading a letter.” He sounded as if he had a cold or a cough.

    Since I was in no hurry, I told him to finish his letter. He shook his head, explaining that he had already read it several times and almost knew it by heart. Curious, I asked whether it was from a child or maybe a grandchild. “This isn't family,” he replied. “though he might just as well have been a regular member of the family. Old Ed and I grew up together.”

    They were always friends. But since he moved away from the neighborhood 30 years ago, it'd generally just been postcards at Christmas time between them. A couple of weeks ago, Ed died. “I should have kept in touch.” He repeated this, more to himself than to me. To comfort him, I said sometimes we just didn't seem to find the time. “But we used to find the time,” he said. “Take a look.” He handed the letter over to me.

    The first sentence “I've been meaning to write for some time, but I've always delayed it.” reminded me of myself. It went on to say that he often thought about the good times they had had together. When I read the part where it said “Your friendship really means a lot to me, more than I can say because I'm not good at saying things like that”, I found myself nodding in agreement.

    We had gone several kilometers and were almost at my hotel, so I read the last paragraph: “So I thought you'd like to know that I was thinking of you.” And it was ended with “Your Old Friend, Tom.”

    “I thought your friend's name was Ed,” I said.

    “I'm Tom,” he explained. “It's a letter I wrote to Ed before I knew he'd died. I never put it in the mailbox. I guess I should have written it sooner.” His face was pale as he wiped his eyes with a handkerchief.

    When I got to my hotel room I didn't unpack right away. I had to write a letter and post it.

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

钢笔吸墨水时，把笔上的弹簧片按几下，墨水就吸到橡皮管里去了，是什么原因？