一个简单句子描述一件事情，告诉别人读者或听者某件事。
例1 Miss Li is a nurse. 这是一个简单句，该句讲述 ‘李小姐是一位护士。’
例2 Yesterday a beggar knocked at my door. 这是一个简单句。描述 ‘昨天一个乞讨者敲响我家的门。’这件事情。
简单句的核心是只描述或讲述一个事实， 一件事情。
由相同单词构成的句子，单词顺序不同，通常意思也不同。
例如
A cat is running after a rat。 一只猫在追一只老鼠
A rat is running after a cat. 一只老鼠在追一只猫
一个英语简单句子通常由下面6个要素组成 1 who/which/what 2 action 3 who/which/what 4 how 5 where 6 when.
其排列顺序通常为 1-2-3-4-5-6 或者 6-1-2-3-4-5.
一个句子必须有2，其它部分可以没有。 2 action 是动词do或系动词be，它通常是主语的动作或状态，是通常所说的谓语， 是一个句子中的核心。
下面按照这6部分来拆分简单句子。大家可以体会，加以理解。
a. I went to Italy last year.
去年我去了意大利。
1 I 2 went to 5 Italy 6 last year
b. We stay at home on Sundays. 星期天我们呆在家中
1 we 2 stay 5 at home 6 on Sundays.
c. I like music very much. 我非常喜欢音乐
1 I 2 like 3 music 4 very much.
d. Yesterday I enjoyed the film. 昨天我观赏了这部电影
6 Yesterday 1 I 2 enjoyed 3 the film
e. She draws beautifully. 她画的十分漂亮
1 she 2 draws 4 beautifully
f. They were talking loudly. 当时他们在大声地谈话
1 they 2 were talking 4 loudly
g. He opened the door quietly. 他悄悄地打开了门
1 he 2 opened 3 the door 4 quietly
h. He read the letter quickly in his office before lunch. 午饭前，他在办公司快速地读了这封信
1 he 2 read 3 the letter 4 quickly 5 in his office 6 before lunch
i. There are a lot of people at the bus stop. 公交站台处那有很多人
1 there 2 are 3 a lot people 5 at the bus stop
