以“我想为你唱首歌”为题，写一篇字数不少于800字的记叙文。不要套作，不得抄袭。

近年来，索马里海盗活动猖獗，对每年近5万艘过往商船、油轮安全造成严重威胁。中国人民解放军海军舰艇多次到亚丁湾海索马里海域实施护航。这是中国远离本国沿海的区域展现海军力量的空前行动，也是中国近现代史上首次派遣海军在中国水域以外执行任务这一行动说明

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词；

2）只允许修改10处，多者（从第11处起）不计分。

    In the future, life will be very different for that of today. First, with medical research develop faster and faster, on the average, a person will live to the age of about 120. Second, because of the discover of new energy, environmental pollution will under control. Third, people's daily life will change greatly, either. For example, robots will do all your houseworks for you; your chair will change its color to match which you're wearing; you can also put your mobile phone round your wrist and see the caller after you are speaking; we even can take a new elevator into space for a holiday.

已知函数$f\left(x\right)=\left\{\begin{array}{c}{\log }_{4}x,x>0\\ 3^x,x\le 0\end{array}\right.$，则$ff\left(\frac{1}{16}\right)=$（    ）