题目

I was scared and feeling pretty anxious,this being my first time in a new country.为什么这里用this being?
I hope this book will be of some help to beginners of English.为什么用of some help?
Professor Li's book will show you how what you have observed can be used in other context.为什么用how what you have observed 为什么how 和what一起用?
The old man was so angry and spoke so fast that none of his children understood what what he said meant?为什么用what what?

提问时间：2021-01-31

答案

I was scared and feeling pretty anxious,this being my first time in a new country.为什么这里用this being?
this being 是独立主格结构.请比较下面两句话的不同：
I was scared and feeling pretty anxious,this being my first time in a new country.
I was scared and feeling pretty anxious,and this was my first time in a new country.
I hope this book will be of some help to beginners of English.为什么用of some help?
这里be of help=be helpful
Professor Li's book will show you how what you have observed can be used in other context.为什么用how what you have observed 为什么how 和what一起用?这里不是how和what连用,而是这个句子可以分为几个层次.句子主干Professor Li's book will show you,其后用了一个how引导的从句作宾语从句,而这个how引导的宾语从句的主语又是由what引导的主语从句充当的.
The old man was so angry and spoke so fast that none of his children understood what what he said meant?为什么用what what?
这句中so...that引导了一个结果状语从句,在结果状语从句中understood的宾语是一个what引导的疑问句,而这个疑问句的主语则又是一个what引导的主语从句来充当,意为“他的孩子们没有一个理解他所说的是什么意思”.