1__3__ you get lost without a phone or a compass, and you __4__ can’t find north, we have a few tricks to help you navigate __5__ to civilization, one of which is to follow the land.
主干主语：we；谓语：have；宾语：a few tricks
结构句首为条件状语从句（you get lost… and you can’t find north），主句 we have a few tricks。不定式 to help you navigate… 作 tricks 的后置定语。one of which is to follow the land 为非限制性定语从句，which 指代 tricks，补充说明其中一种方法。
译文万一你既没手机也没指南针迷了路，又辨不清北方，我们还有几招能帮你摸回有人烟的地方，其中一招就是顺着地势走。
考点one of which 引导非限制性定语从句，which 指代复数先行词 tricks · 条件从句与主句之间用逗号分隔，and 连接从句内部两个并列情况
2When you find yourself well __6__ a trail, but not in a completely __7__ area, you have to answer two questions: Which __8__ is downhill, in this particular area?
主干主语：you；谓语：have to answer；宾语：two questions
结构When 引导时间状语从句，find yourself 后接补足成分；but not… 与 well __6__ a trail 形成对比。主句后冒号引出具体问题。in this particular area 为插入性地点状语，限定 downhill 的判断范围。
译文当你发现自己已经远离小径、但还没完全走进荒无人烟之地时，得先搞清两件事：在这一带，哪边是下坡？
考点find oneself + 补语 表示“发觉自己处于某种状态” · 冒号后的特殊疑问句是对 two questions 的具体展开
3If you’ve explored the area before, keep an eye out for familiar sights – you may be __11__ how quickly identifying a distinctive rock or tree can restore your bearings.
主干祈使句谓语：keep an eye out；后一分句主语：you；谓语：may be __11__；宾语从句：how quickly… bearings
结构If 条件从句用现在完成时，表示先前经历。破折号后为补充说明：how quickly 引导感叹性宾语从句，其主语是动名词短语 identifying a distinctive rock or tree，谓语 can restore，宾语 your bearings。
译文要是你以前来过这片地方，就留意熟悉的景物——你可能会吃惊：认出一块怪石或一棵特别的树，竟能这么快让你找回方向感。
考点keep an eye out for 后接名词，表示留意寻找 · how quickly 从句中动名词短语作主语，注意主谓一致用单数
4__13__, even in dense forest, you should be able to __14__ gaps in the tree line due to roads, train tracks, and other paths people carve __15__ the woods.
主干主语：you；谓语：should be able to __14__；宾语：gaps in the tree line
结构even in dense forest 为让步状语。due to… 介词短语说明 gaps 的成因。people carve __15__ the woods 为省略关系代词的定语从句，修饰 paths。roads, train tracks, and other paths 为并列名词短语。
译文即便在密林里，你也该能看出树冠线的缺口——那是公路、铁轨以及人们在林中开辟的其他通道造成的。
考点due to 短语后置修饰 gaps，表原因 · paths 后定语从句省略了 that/which，carve 的宾语是先行词 paths
5__18__, assuming you’re lost in an area humans tend to frequent, look for the __19__ we leave on the landscape.
主干祈使句谓语：look for；宾语：the __19__
结构assuming… 为现在分词短语作条件状语，相当于 if we assume…。humans tend to frequent 为省略关系代词的定语从句，修饰 area。we leave on the landscape 同样为省略 that 的定语从句，修饰 the __19__。
译文再者，假定你迷路的地方本就是人常去的，那就去找我们留在大地上的痕迹。
考点assuming 引导的分词结构可表假设条件 · 两个定语从句均省略关系代词，分别修饰 area 与 the __19__