As in your country, we grow wheat in the north and rice in the south. 正如(像)你们国家一样，我们在北方种小麦，在南方种大米。

问题：as是连词还是其他什么词性？as引导的是省略了成分的方式状语从句？

【答】as的用法相当复杂。因为它既是介词也是连词，有时还是关系代词，有时还充当复合关系代词等。具体是什么词性、以及引导何种从句，需要根据具体的语境来判断。

▲就网友提问的句子来看，as是从属连词，引导方式状语从句。因为省略了与主句相同或相似的成分，只保留了与主句对比的成分，所以省略后，可以是介词短语或其他词语。

As in your country, we grow wheat in the north and rice in the south. 等于：

As you grow wheat in the north and rice in the south in your country, we grow wheat in the north and rice in the south.

as引导方式从句，省略现象是很常见的，又如：

As in the past, the call went largely unheeded. 像过去一样，此项呼吁被人们忽视。

As in the case of the motion of a body, running water has energy. 象物体运动一样，流水具有能量。

To have one's baggage weighed, as at an airport.  过磅称行李的重量，如在机场。

A key played with the finger, as on a piano. 琴键如在钢琴上用手指弹奏的部分。

▲此外，一些由as构成的习语，也属上述省略情况。为了理解方便，可以不予划分。

As always, he was late and had to run to catch the bus. 他像平时一样又晚了，得跑著去赶公共汽车了。

As usual, there weren't many people at the meeting. 像往常一样，来开会的人不多。

As to the plan, I think it is quite good. 至于这个计划，我认为很不错的。

As for the hotel, it was very uncomfortable and miles from the sea. 至于旅馆呢,非常不舒服,而且离海边有好几里地。