“不可數名詞通常沒有複數”怎麼理解？

不是“通常沒有複數”，應該是“一定沒有複數”
後面+S一半是泛指這一類的全體

RELATED INFORMATIONS

1. 沒有複數形式的都是不可數名詞嗎？不可數名詞可用are修飾嗎
2. suggestion有複數形式麼還是不可數名詞？
3. 不可數名詞是不是永遠都不可能用複數形式.（-s）比如水，永遠都不會出現waters這種情況？還有”cloud”是不是可數名詞，我覺得是不可數，但怎麼新概念第一册書上有”There are some clouds in the sky，but the sun is shining.”
4. that is a pencil.改為複數句
5. that is his brother改為複數句
6. That is his book.怎麼改為複數句
7. Is that his class？怎麼變成複數形式？
8. 句型轉換.1.This is a pencil- box.（改為複數句）_______ ______ ______pencil-boxes. 2.Are you Miss Gao？（做否定回答）____，____ ____.3.The twins come from Japan.（改為同義句）The twins ____ ____Japan.4.I don't know how I can look after my dog.（改為同義句）.I don't know how ____ ____ ____my dog.5.Mr Green is from __the USA__.（對劃線部分提問）____ ____Mr Green ____？
9. this is a pencil改為複數句
10. This is my pencil（變為複數句）
11. That woman is a teacher改為複數句
12. woman teacher變複數？
13. she is a woman teacher.（改為複數句）
14. Is this your woman teacher改為複數形式急
15. This is his dictionary.單複數轉換是That
16. His father is a teacher？改為複數形式
17. Is there any bread in the fridge？肯定和否定回答
18. if there are any .複數形式的有沒有，如果是單數這樣寫對嗎？if there is… if there are any books…有沒有書. if there is the book.有沒有一本書. 這樣寫對嗎？單數和複數有哪些區別呢？名詞前面的any和the如何使用呢？
19. there is no後面加單數還是複數那any後呢
20. Is there any bread？any bread不是複數嗎，這裡為什麼不是are there呢