that的用法還有關於形容詞子句的用法

1號說的有一點點需要修正一下 大部分人會覺得 that 混淆 是因為不會分 that 是關代的 that 還是名子句的that
簡單說 若是 形容詞子句的 that 這個句子 是當形容詞用 修飾它之前的名詞 而這個被修飾的名詞 就叫先行詞 所以他所舉的例子 一 that 是關代 這裡用 which 也是可以的 這裡就不是同位語的概念了 至於關代何時要用that 2號已有說明 不再贅述

若是名詞子句的 that 這就用同位語的觀念來看 會比較簡單:
The fact (that the earth is round) is known by everybody.
the fact=that the earth is round 指的是同一件事情 所以這叫 名詞子句 NP
They live in a house (that is haunted.)
全世界的房子那麼多 that 子句是用來形容他們住再哪一間房子 這叫形容詞子句 AP
試試看:
1. The theory ( that metal expands when heated) is well-grounded. NP
2. I like the theory that (by taking care of the basics other stuff falls into place. ) AP

如果你有關係代名詞所引導的子句是形容詞子句的概念的話，那你後來補充部份所說的就已經是正確解答了。
英文中，有下列的情形時，經常會使用關係代名詞 "that" 而不用 "who" 或 "which"：
1. 先行詞 (也就是形容詞子句要修飾的名詞) 為人以外的事物，且有 the first, the second, the last, the very, the + 最高級, the same, the only 等表示特定事物的修飾語：
This is the only suit that I have.
2. 先行詞前面有all, every, any, no 等表示「全部」或「完全沒有」的修飾語：
Running the marathon took all the strength that she had.
3. 〈人+事或物〉共同作為先行詞時：
He talked about the people and the things that had fascinated him during his trip.
4. 疑問詞 who 後面直接接關係代名詞子句：
Who that has seen the Pyramids can forget their beauty?

that用來代替前面的那個名詞???好像是同位語才會


1.They live in the house that is haunted.

house 是先行詞，that is haunted是關係子句當形容詞子句修飾house。



名詞子句做同位語時that前面的名詞不叫先行詞。

2.The problem that my computer is out of function can be solved by making a call.


The problem即是that my computer is out of function can be solved by making a call.
是同位語