Words are used to form patterns of English grammar and syntax. Each word falls into one of eight categories referred to as parts of speech. Here are the eight commonly recognized parts of speech.
英语的语法和句法中也会形成词的类型。每个词都会被归为八类中的一类，这里我们要讲的就是英语中八类最常见的词性。
Certain words have further categorization such as: adverbs of frequency: always, sometimes, often, etc. or determiners: this, that, these, those . However, the basic categorization of words in English fall into these eight categories.
具体的词还会有更进一步的分类，比如always(总是)，sometimes(有时)， often(经常)等等这些被叫做频率副词，还有this(这个)，that(那个)，these(这些)， those(那些)被叫做限定词，不过基本的英语词类还是有这八类的。
The Eight Parts of Speech
八种词类
Noun
名词
A word which is a person, place, thing or idea.
描述一个人、一个地点、一个东西或者一种想法的词。
Examples:
例如：
Mount Everest, book, horse, Peter, strength, car, Empire State Building, China, house, child
珠穆朗玛峰，书，马，皮特(人名)，力量，汽车，帝国大厦，中国，房子，孩子
Pronoun
代词
A word that is used to take the place of a noun.
用来指代一个名词的词
Examples:
例如：
I, they, their, ourselves, itself, your, my, nobody, who, which, her, we
我，他们，我们自己，它自己，你的，我的，没有人，谁，哪个，她(宾格)，我们
Adjective
形容词
A word that is used to describe a noun or pronoun.
一个用来描述一个名词或者代词的词
Examples:
例如：
proud, purple, French, few, this, huge, sad, second, none
骄傲的，紫色的，法国的，很少的，刚过去的，巨大的，悲伤的，其次的，没有的
Verb
动词
A word that indicates an action, being or state of being.
一个表示动作进行或者存在的状态的词
Examples:
例如：
play, run, think, study, smell, wait, be, drive, renounce, fill
玩，跑，想，学习，闻，等，是，驾驶，拒绝，填充
Adverb
副词
A word that is used to describe a verb which tells how, where, or when something is done.
副词是用来描述一个动作怎样完成、在哪里完成或者什么时间完成的词
Examples:
例如：
carefully, often, very, [w]intelligently, quite, too, rarely, never
仔细地，经常，非常，聪明地，非常，太，很少，从不
Conjunction
连词
A word that is used to join words or groups of words.
一个用来连接几个词或者几组词的词
Examples:
例如：
and, or, but, neither, because, while, since, although
和，或者，但是，既不是，因为，而，自……以来，虽然
Preposition
前置词，汉语中多叫介词
A word used indicating the relationship of a noun or pronoun to another word.
一个用来表明一个名词或代词和另一个词的关系的词
Examples:
例如：
in, until, of, from, after, under, beyond, across, toward
在……里面，直到，……的，从……开始，在……之后，在……下面，超出，穿过，向
Interjection
感叹词
A single word used to express strong emotion.
一个表达强烈的感情的词
Examples:
例如：
Wow! Ah! Oh! No!
哇!啊!哦!不!