
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
In the plane rectangular coordinate system $(xoy)$, with the origin $O$ as the pole and the positive semi-axis of $x$ as the polar axis, a polar coordinate system is established. It is known that the polar coordinate equation of the curve $C_{1}$ is $ρ=4\cos θ$, and the parametric equation of the curve $C_{2}$ is $ \begin{cases} x=m+ \frac {1}{2}t \\ y= \frac { \sqrt {3}}{2}t\end{cases}(t$ is the parameter$)$．

1) If $C_{1}$ and $C_{2}$ have only one common point, find the value of the real number $m$;
2) If $θ= \frac {π}{3}$ intersects with $C_{1}$ at point $A$ (different from the pole), $θ= \frac {5π}{6}(ρ∈R)$ intersects with $C_{1}$ at point $B$ (different from the pole), and with $C_{2}$ at point $C$, if the area of $△ABC$ is $3 \sqrt {3}$, find the value of the real number $m(m < 0)$.

Present the answer in LaTex format: \boxed{Your answer}
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