单复数不同，意思截然不同的20组词汇
很多同学在学习英语的过程中以为名词单复数形式的唯一区别在于数量上的差别，单数即“一个”，复数即“多个”其实不是。
很多单词的单复数形式在含义上相差甚远，我们一起来看看！
1. advice 忠告
I want your advice, sir. I don't know what to do.
先生, 我需要您的指点。我不知该怎么办才好。
advices 消息
Advices from abroad indicate that war is about to begin.
来自国外的消息表明战争即将开始。
背单词Don’t eat food with a high fat content.
不要吃脂肪含量高的食物。
contents 目录
Look up the contents at the beginning of the book.
查一下卷首的目录。
3.custom 习惯，风俗
hospital是什么意思It is my custom to go for a walk before breakfast.
早餐前出去散散步是我的习惯。
英语口语等级考试
customs 海关，关税
It took us only a few minutes to get through the customs.
我们的海关检查只花了几分钟时间。
4. experience 经验
Experience is the best teacher.
经验是最好的老师。
experiences 经历
torch relayI know from experience that he will arrive late.
据我的经验，他会迟到。
5.manner 方式
He spoke in such a manner as to hurt their feeling.
他讲话的方式伤害了他们的感情。
2005年高考试题
manners 礼貌
His good manners were praid by his teachers.
他的彬彬有礼受到了老师的称赞。
6.arm 臂；手臂；上肢
They walked along the beach arm in arm.
他们臂挽臂走在沙滩上。
arms 兵器；武器
Police officers in the UK do not usually carry arms.
英国警察通常不携带武器。
7.effect 效应；影响；结果
Her criticisms had the effect of discouraging him completely. 她批评的结果是使他完全丧失了信心。
effects（个人）财产；所有物；财物
The insurance policy covers all baggage and personal effects. 这份保险单为全部行李和个人财产提供保险。
8.paper 纸；纸张中国试卷网
She wrote her name and address on a slip of paper.
她把姓名和地址写在一张纸条上。
papers 文件；文献
His desk was covered with books and papers.
他的办公桌上全是书籍和文件。
< 吨
What have you got in this bag? It weighs a ton!
你这口袋里装的是什么？重死了！
tons 大量；许多
I’ve still got tons to do.
我还有许多事要做。
10.air 空气
Let’s go out for some fresh air.
咱们出去呼吸点新鲜空气。
highwayairs 摆架子；装腔作势
I hate the way he puts on airs.
我不喜欢他那装腔作势的样子。
< 学期（尤用于英国，学校一年分三个学期）
Many students now have paid employment during term.
现在许多学生在上学期间就从事有薪工作。
terms（协议、合同等的）条件；条款
The are the terms and conditions of your employment.
这些就是聘用你的条件。
12.art 艺术；美术（尤指绘画、雕刻、雕塑）
Her performance displayed great art.
她的表演展现了精湛的技艺。
arts 人文科学；文科（如语言、历史、文学）
History is one of the arts.
历史是一门人文学科。
13.look 看；瞧
Tom took a last look in the mirror.
汤姆最后照了一下镜子。
looks（尤指吸引人的）相貌; 容貌
愚人节的英文
She has her mother’s good looks.
她有母亲漂亮的容貌。
14.time 时间
Reading occupies most of my free time.
阅读占去了我大部分的闲暇时间。
times 时代
It was the best of times;it was the worst of times;it was the age of
wisdom;it was the age of foolishness.
那是最美好的时代；那是最糟糕的时代；那是智慧的年头；那是愚昧的年头。
15.water 水
I satisfied my thirst with a glass of water.
我喝了一杯水解渴。
郑州大学自主招生waters 海洋
Can we e this fish often in the waters?
在这海域我们能经常看见这鱼吗？
16.work 工作
Work can bring you pleasure.
工作能给人带来快乐。eachof
works 工厂
A large steel works was built here in the thirties.
30年代这里建了一座大钢铁工厂。
There is a troop of monkeys in the woods.
林子中有一群猴子。
troops 军队
Army generals would know the names of all their troops .
军事将领要知道军队中所有人的名字。
18.spirit 精神
