One day, my father and I were in line to buy tickets for the circus(马戏表演). And a family was standing in front of us.

    The family had eight children. Their clothes were not expensive but clean．The children talked about the clowns(小 丑), elephants, monkeys and other things excitedly. It was their first time to go to the circus.

    The ticket lady asked the father how many tickets he wanted. He proudly answered, “I want eight children's tickets and two adults' tickets, so I can take my family to the circus.”

    The ticket lady said the price. The man's wife lowered her head and there was no smile on th e man's face. He quietly asked, “How much did you say?”

    The ticket lady said the price again. The man didn't have enough money. How could he tell his eight kids the bad news? My dad put his hand into his pocket and pulled out a $20 bill and dropped it on the ground．(In fact, we were not rich!) Then my dad said, “Excuse me, sir, this dropped out of your pocket.”

    The man knew what was going on. He looked into my dad's eyes, held my dad's hand in his, and took the $20 bill. “Thank you, sir, thank you. This really means a lot to me and my family.”

    My father and I went back home. We didn't go to see the circus that night, but we didn't care.

已知向量a、b的夹角为${60}^{°}$，且$\left|\mathbf{a}\right|=2,\left|\mathit{b}\right|=1$,则向量a与向量a+2b的夹角等于（   ）

计算：$\sqrt{8}$+|$2\sqrt{2}$﹣3|﹣（$\frac{1}{3}$）^﹣1﹣（2015+$\sqrt{2}$）⁰．

古诗文默写
（1）《浣溪沙》这首词里对仗工整，可称为奇偶佳句的句子是：____ 。
（2）我寄愁心与明月，____ 。《闻王昌龄左迁龙标遥有此寄》（李白）
（3）____ ，禅房花木深。《题破山寺后禅院》（常建）
（4）沈复在《童趣》中表明自己幼时视力极佳的成语是：____ 
（5）李玉同学刚升入初中，经过一段时间的学习，他感觉学习没有什么困难，于是学习有些松懈了。请你用《过松源晨炊漆公店》中的两句诗告诫他：
____  。
（6）抒发思乡之情是我国古代诗词曲中的一个经久不衰的主题，其中有许多名句，请你任意写出两句：“____ ”。
（7）月光淡淡，笼罩着村外的松林。白云团团，____ 。（《静夜》）

下列说法中正确的是（　　）