that做代詞的用法可數不可數單複數名詞都可用that代替嗎?不定代詞一定要用that代替嗎？

題目：

that做代詞的用法
可數不可數單複數名詞都可用that代替嗎?
不定代詞一定要用that代替嗎？

解答：

不是的.

that可以指代不可數名詞,指同類異物.
如：The weather of Guangzhou is hotter than that of Harbin.
that還可以指代可數名詞單數,此時 that = the one,也指同類異物.
The hat you bought is bigger than that I bought.　

你買的那頂帽子比我買的大.
that不能指代可數名詞複數,不過those可以,此時those = the ones.