①孜孜不倦：____。

②微不足道：____。

③锲而不舍：____。

④日雕月琢：____。

⑤炉火纯青：____。

⑥犹豫不决：____。

____

结合地图和所学知识完成下列各题

（Ⅰ）若a=1，求函数f（x）的单调区间和极值；

（Ⅱ）设函数f（x）图象上任意一点的切线l的斜率为k，当k的最小值为1时，求此时切线l的方程．

根据短文判断下列句子是否正确,正确的写 “正确”,错误的写 “错误”

    Hello, my name is Li Ming. I am a boy. I am eleven years old. Now let me tell you something about my family. There are four people in my family. They are my father, my mother, my sister, and I. My father likes January and February. I like October. I don't like January and February. It's cold today.