根据句子意思和所给的首字母写出所缺单词。要求在答题卷上写出完整的单词。（每空只写一词）
Most people will feel h____  when they are away from their homes for a long time.
Whether to go or not. It’s difficult for me to make a d____ 
We hope our f____  will last forever.
He works hard every day. I think he will a____  his ambition one day.
The student not only learn k____ from the textbooks but also from different activities.

下列语句中划线的成语使用有误的一项是（    ）

已知函数 $f\left(x\right)=\ln \left(kx\right)+\frac{1}{x}-k\left(k>0\right)$ ．

（Ⅰ）求f（x）的单调区间；

（Ⅱ）对任意 $x\in \frac{1}{k}，\frac{2}{k}$ ，都有xln（kx）﹣kx+1≤mx，求m的取值范围．

分类是学习和研究化学的常用方法，下列物质分类正确的是（  ）