except 在里面是做连词吗?that做什么成分呢?Nothing was done except that officials would nod to them with placid smiles.

except 在里面是做连词吗?that做什么成分呢?
Nothing was done except that officials
would nod to them with placid smiles.

except that 合在一起 是连词 意思是 只.
except是介词 不能当连词用
故 可以说 是 that引导名词性从句 作介词except的宾语

确切地说except是介词，后面跟着that引导的宾语从句
如果是连词的话，岂不是except和that两个连词重复？

except是做连词，that作为主语，指代后面的句子。