一个很难分析的英语句子结构-----------------高手帮忙

题目

一个很难分析的英语句子结构-----------------高手帮忙
Just sitting in the wheelchair was a learning experience.I had never considered before how awkward it would be to use one .As soon as I sat down,my weight made the chair begin to roll.Its wheels were not locked.Then I wondered where to put my feet.It took me quite a while to get the metal footrest into place.【I took my first uneasy look at what was to be my only means of transportation for several hours.】For disabled people,“adopting a wheelchair” is not a temporary（临时的）experiment.
请分析【】里句子的结构,看着有点乱,最后标准翻译,
1、解释take my first uneasy look at 的意思
2、my only means of transportation 中的means 的意思。

答案

I 主语took my first uneasy look at 谓语,took a look at 看一眼的变体,中间用形容词,去掉了a；what was to be my only means of transportation for several hours.整句话是what 引导的宾语从句,做at的宾语；在从...