6.He wasn’t made president of the board of directors,----not

仔细体会句子的意思你就会发现后面那句话是前面那句话的原因：他没有成为董事长,考虑到他和成员的关系不太好。整个句子完全可以把后面的提前,做一个原因状语：Considering not very popular with all its members,he wasn't made president of the board of members。这样来看逻辑主语为he,他没有成为董事长这已经是事实,不可能用表目的的不定式to be considered,也不是表示时间先后的having considered,he和consider是主动的关系,不是表被动的being considered,所以用considering。