简单句就是只有一个主语（或并列主语）和一个谓语（或并列谓语）的句子。它的基本构成有六种：
1.主语+系动词+表语（+状语）
主语 | 系动词 | 表语 | 状语 |
These books | are | interesting. | |
Tom | is | very happy | today. |
2.主语+谓语（不及物动词）（+状语）
主语 | 谓语 | 状语 |
The first book | came out | in 2009. |
3.（状语+）主语+谓语（及物动词）+宾语（+状语）
状语 | 主语 | 谓语 | 宾语 | 状语 |
I | bought | a very good book | yesterday. | |
My father | loves | pictures of cars. | ||
Every morning | my mother | prepares | breakfast | for me. |
Back at school | he | wrote | a story. |
4.主语+谓语（及物动词）+间接宾语+直接宾语（+状语）
主语 | 谓语 | 间接宾语 | 直接宾语 | 状语 |
His hobby | has brought | him | enjoyment. | |
My father | bought | me | a very good bike | on my birthday. |
My aunt | sent | me | a box of candies | last week. |
5.主语+谓语（及物动词）+宾语+宾语补足语（+状语）
主语 | 谓语 | 宾语 | 宾语补足语 | 状语 |
We | can help | you | do the job | step by step. |
I | don't want | you | to work | too hard. |
The news | made | everyone | happy. |
6.There+be+主语（+状语）
There | be | 主语 | 状语 |
There | are | many books | in his schoolbag. |
There | is | a very nice cup | on the table. |
从以上例子可以看出，英语的句子以谓语为中心，前面是动作的执行者（被动语态除外），后面接动作的承受者。