三个英语句子略有不懂.1,Fartheruptheslope,volcanologist三个英语句子略有不懂.1,Fartheruptheslope,volcanologistKenHon（人名）pickshiswayslowlyacrosstheroughsurface.这一句中Fartheruptheslope该怎么理解?

Question

三个英语句子略有不懂.1,Farther up the slope,volcanologist
三个英语句子略有不懂.
1,Farther up the slope,volcanologist Ken Hon（人名）picks his way slowly across the rough surface.
这一句中 Farther up the slope 该怎么理解?
2,He looks up to see where the streams are.
where引导的是什么从句?
3,You have to wear firefighters' gear（衣服） so the clothes don't catch fire or melt.
so在这句话中怎么理解?翻译为因此的话感觉不怎么通啊?

Answer 1

=When he was farther up the slope
宾语从句
so=so that