已知曲线C的极坐标方程是ρ=1，以极点为原点，极轴为x轴的正半轴建立平面直角坐标系，直线l的参数方程为$\left\{\begin{array}{c}x=1+\frac{t}{2}\\ y=2+\frac{\sqrt{3}}{2}t\end{array}\right.$为参数）．

（1）写出直线l与曲线C的直角坐标方程；

（2）设曲线C经过伸缩变换$\left\{\begin{array}{c}x\text{'}=2x\\ y\text{'}=y\end{array}\right.$得到曲线C′，设曲线C′上任一点为M（x，y），求x+2$\sqrt{3}y$的最小值．

    Friends play an important part in our ____ (life). Though we may take friendship for granted, we often don't clearly understand ____ we make friends. While we get on ____(good) with many people, we are usually friends with only a few—for example, per student usually ____ (have) about 6 friends. In all the cases of friendly relationships, two people like one another and enjoy ____ (be) together. ____fact, as we get to know people, we take into account things like age, race, economic condition, social position, and intelligence. Although these things are not of great ____ (important), ____ is more difficult to get on with people when there is an obvious difference in age and background. Compared with marriage, there are no friendship ceremonies to ____ (strong) the connection between two people. But the mutual（彼此的）understanding that results from common experiences and emotions does seem to create a powerful bond, ____ can overcome difference in background, and break down barriers（障碍）of age, class and race.

命题作文。

    陈忠实在获得茅盾文学奖时，说出了它的“动力源”：他看到比自己小七岁的路遥写出了那么多本优秀的小说，成了自己写作的动力。当他沥尽心血写出《白鹿原》后，他获得了成功……在成长路上，你的“动力源”又是什么呢？

请以“我的动力源”为题，写一篇文章。

要求：①字数不少于600字，不多于900字；

②除诗歌外，文体不限；

③文中不得出现真实人名、地名、校名，如不可避免，请用×××代替；

④不得抄袭或套作。