Such as remains after tax will be yours when I die Such 是形容詞嗎 ,那as是介詞嗎? 這句的such as如何理解?

1. Such 是形容詞嗎?
No. Such 在這裡是<代名詞> 是<...那樣的東西>的意思

2. 那as是介詞嗎?
No. as 在這裡是<(關係)代名詞> 是<that>的意思 (請參見柯旗化《新英文法》p.104)
<as remains after tax> = <that remains after tax> 是一個關係子句
remains 是關係子句 的 verb
這關係子句的意思是: <那些扣完稅 所留下來的(東東)>

3. 這句的such as如何理解?
<such as>在此要分開成<such> <as>來理解

4. 整句的意思是:
那些(such)扣完稅後還剩下的 在我死亡以後 就會是你的
= The things (=such) that (=as) remains after Uncle Sam (=tax) will be yours when I die.
= Such that remains after the tax will be yours when I die.
= What (=the things that) remains after tax will be yours after I die.

such=determiner--as=adv.prep.---such---as=The money for you, such as after tax, is about 1M. Plenty of money for you, such as remains after tax
(1) used to talk about a thing same kind already been mentioned
=such money is for you=money.
(2)such as used when giving an example of something;
such ---as:-used to give a reason or explanation for something:-
eg:-The nature of the money was such as you felt obliged to receive it after tax.
eg:-Money is still for you such as "remains after tax."
eg:-Money is for you such as "remains after tax."

下述句子中的such是「代名詞」，代替前面句子曾提過的內容：
Such is life.＝人生就是那樣。
Such was not my intention.＝我的本意不是那樣。
Such were the results.＝結果就是那樣。
這種句子是用來做結論的。

Such things, as remains after tax, will be yours when I die.
你給的句子有點問題，因為such所指的內容不在前面句子，而在本句內，所以such後面應加上名詞things。這such是形容詞。後面的as remains after tax的前後應加上逗號，因為它屬於作者的「插入語」，是用來加註舉例的。

The remains of something are the parts of it that are left after most of it has been taken away or destroyed.在remains after tax那裡的remains和上面這句的主詞相同，都是「複數名詞」。意思是：完稅後所剩下來的。

as是介系詞，意思是：「如」
Some animals, as fox and squirrel, have bushy tails.
有些動物，像狐狸和松鼠，都有濃密的尾巴。