suchの3つの品詞

• predeterminer/determiner
• pronoun

predeterminer/determiner

predeterminer/determinerの違いは後に単数形が来るか複数形・不可算名詞が来るかの違い。

引用 – Macmillan Dictionary

単数形の名詞を伴う例
She’s such an intelligent woman.

複数形・不可算名詞を伴う例
Such men are dangerous.
We’ve had such awful weather lately.

pronoun

引用 – Economist – Dead on Arrival

suchは直前に記述のあった出来事を指す。

Such is the context for Mr Trump’s unveiling of his long-awaited peace plan with Mr Netanyahu on January 28th

引用 – Macmillan Dictionary

They want a 10% pay raise – such is the scale of their latest demand.

意味

of the type

「その類の」と言いたい時の表現

引用 – Macmillan

Why did this tragedy happen here and now? Such questions are easier to ask than to answer.

emphasizing

シンプルに名詞を強調する使い方。

引用 – Macmillan

She’s such a nice person.

How can anyone live on such a small salary?

He has always had such compassion and such concern for others.

If it’s such a secret, why did you tell me?

to say a particular situation which causes the result

何かが起こった原因となる状況・態度・行動を述べたい時に使う表現。

引用 – Macmillan

such ~ that … ~なので…だ
He speaks to me in such a way that I always feel he is insulting me.

~ such that … ~なので…だ
Their relationship was such that they spent every possible minute together.

such ~ that … suchが～ので…だ
Such was Crowther’s reputation in the city that no one ever questioned his judgment.

~ such as to … ～なので…だ
The countess’s treatment of her servants was such as to cause great resentment.

S be such as to ～

「Sが～の原因となっている」フレーズなので細かい事を気にせずに覚える。但しsuch as toとかもはや年寄りが使うような表現で現代ではあまり使われない。上記の例文をsuch as toを使わずに書き換えるなら次のようになる。

The countess’s treatment of her servants was of a kind that causes great resentment.

The countess’s treatment of her servants was such (treatment), as a result, it causes great resentment.

参考：English Forums
参考：ell.stackexchange.com