There (引导词)are,of course（插入语）,rules（主语） of a different kind（定语,修饰rules） which would be dangerous to ignore（定语从句,修饰前面的rules.
当然,有一些不同的规则,忽视它们是很危险的.
2. but when climbers are on a rock face joined by a rope on which their lives may depend,(but,是转折连词,when 后面一直到depend 是时间状语从句.其中,joined 是过去分词作定语,修饰face；on which 后面是定语从句,修饰rope)there is clearly teamwork（后面这部分是主句）.
但是,当登山者爬到栓有绳子的岩石表面时,这根绳子就成为他们性命的靠山.显然这里就有全队的合作.