不是.应该是The first thing that you want to do is familarize yourself with the area.
that引导的是定语从句,that you want to do 是从句部分,修饰the first thing
不是.应该是The first thing that you want to do is familarize yourself with the area.
that引导的是定语从句,that you want to do 是从句部分,修饰the first thing