请问2个英语题目（关于倒装方面得）

题目

请问2个英语题目（关于倒装方面得）
1.Nowhere else is there such perfect silence as in these moutains.
我不明白得是句子里得“is there”,there be 句型本身不就是倒装了吗?这个句子为什么要到装成is there?
2.He believed ,____,that people should start as early as possible to look at the world and nature and to think about what they saw.
答案： as did his mother.
请问这个句子为什么要倒装?as引导让步状语从句的时候倒装,这里明明没有让步的意思?

答案

there be 句型中的倒装是指以引导词there引起的陈述句,系动词置于主语之前,而不是there 和 be之间是倒装.
Nowhere else is there such perfect silence as in these moutains. 这句话之所以倒装是因为句首的 nowhere是副词.
第二句话是一种修辞倒装,是起强调作用的.