英文句子结构分析遇到的问题

The beaver chews down
trees to get food and material with which to build its home.

-其中 which to build its home 是做 material的宾语补足语？

As a result of what is now known in
physics and chemistry, scientists have been able to make important discoveries
in biology and medicine.

-As a result of what is now known in physics and chemistry是一个原因状语从句，主句是后面的scientists have been able to make...？

The practice of making excellent films
based on rather obscure novels has been going on so long in the United States
as to constitute a tradition.

-这句请分析rather obscure novels has been going on so long in the United States as to constitute a tradition.的句子结构

Since the consumer considers the best
fruit to be that which is the most attractive, the grower must provide products
that satisfy the discerning eye.
-这句请分析一个主谓宾定状补。

the beaver chews down trees to get food and material with which to build its home.

-其中with which to build its home 是做 material的定语 相当于一个定语从句
=with which it builds its home

As a result of what is now known in physics and chemistry是介词短语作状语,
其中As a result of可以看做是一个短语介词
what is now known in physics and chemistry是名词性从句作介词of的宾语 是宾语从句
scientists 是主语have been able to make 是谓语important discoveries是宾语
in biology and medicine是状语.

The practice of making excellent films 是主语
based on rather obscure novels 是过去分词短语作定语
has been going on是谓语 so long 是状语in the United States是状语
as to constitute a tradition是目的.状语

Since the consumer considers the best fruit to be that which is the most attractive是原因状语从句
其中Since是从属连词引导原因状语从句
the consumer 是从句中的主语considers是 从句中的谓语 the best fruit 是从句中的宾语
to be that是从句中的宾补 which is the most attractive 是从句中的定语从句修饰that
, the grower是主语 must provide 是谓语products是宾语
that satisfy the discerning eye是定语从句修饰products.

不是宾补语，是定语 前面不是原因状语，是个result的定语从句。后面那个是主句 The practice of making excellent films based on rather obscure novels这是主语， has been going 谓语 on so long状语 in the United States as to constitute a tradition. 状语 Since the consumer 主语 considers 谓语 the best fruit宾语 to be that which is the most attractive, 表语从句 the grower must provide products 定语that satisfy the discerning eye.