请问cloth当布讲的时候是不可数名词对吗，那cover the cut with a clean cloth为什么用a呢

一般在2种情况下会用 "a"

1 当用于某种特殊用途的布, 如: a table cloth, a cleaning cloth

2 指某一块/条布 a piece/strip of cloth

cover the cut with a clean cloth (as a bandage) 这里指的那块布是有特殊用途的

区别是三者在含义，用法上的不同。

1、cloth表示“布”、“衣料”，是不可数名词；表示用作某种特殊用途的布(如：桌布，台布，揩布等)，是可数名词。如：

①She passed the needle through the rough cloth, back and forth

她一针一针地缝那块粗布。

②She bought some cloth to make herself a dress

她买了些布要给自己做一件连衣裙。

2、clothes 是一个没有单数形式的复数名词, 其前不可加不定冠词，也不可加数词，但可用 some, these, those, many, few 等词修饰。

如：

She put in some clothes, odds and ends, and make-up

她将一些衣服、化妆品和零碎物品放了进去。

3、clothing 是不可数名词。如：

The first plane-loads of food, children'sclothing and medical supplies began arriving

首批飞机运送的食物、儿童衣物和药品开始抵达。

4、clothes 的含义比较具体，而 clothing 的含义则比较抽象。从语体上看，clothing 比 clothes 更正式。如：

①I spend a lot on expensive jewelry and clothing

我花很多钱购买昂贵的首饰和衣服。

②She had decked him out from head to foot in expensive clothes

她用昂贵的服装把他从头到脚打扮一新。

扩展资料

相关句子：

1、Clothes were thrown in the luggage in an untidy heap

衣服被乱糟糟地扔进旅行箱里。

2、"Such lovely clothes I'd no idea Milan was so wonderful," she raved

“这些时装太漂亮了。我没想到米兰是如此的精彩，”她赞不绝口。

3、Centre the design on the cloth before you start

在开始前，将图案放在布的正中间。

4、Matilda was embroidering an altar cloth covered with flowers and birds

玛蒂尔达在一块有花鸟图案的祭坛布上刺绣。

5、Deflation is beginning to take hold in the clothing industry

通货紧缩开始全面影响服装业。

6、Hire of skis, boots and clothing, is all available

滑雪板、滑雪靴和滑雪服皆有出租。

7、An expenditure for clothing will qualify as a trade or business expense

服装费将可算作贸易或商务开支。

一、词义不同

1、cloth表示布、布料，不可数 eg: a piece of silk cloth

cloth 英[klɒθ] 美[klɔːθ]

[例句]She began cleaning the wound with a piece of cloth

她开始用一块布清洗伤口。

2、clothes 有两种含义。一种名词词性（衣服，衣物）永远是复数形式；

另一种动词词性（原形clothe,表示给提供衣服，clothes是clothe的第三人称单数）eg:She always clothes herselef in expensive clothes

clothes 英[kləʊðz] 美[kloʊðz]

clothe的第三人称单数;

[例句]Moira walked upstairs to change her clothes

莫伊拉上楼去换衣服。

3、clothing 衣服的总称,不可数名词。

clothing 英[ˈkləʊðɪŋ] 美[ˈkloʊðɪŋ]

clothe的现在分词;

[例句]Some locals offered food and clothing to the refugees

一些当地人为难民们提供食品和衣服

扩展资料：

clothing＝cloth＝clothes＝ dress

dress

例句She wore a long white dress

她穿着一件白色的长连衣裙。