There be 句型：有的是"存在"，不是"拥有"

"我有一本书"是 I have a book，"桌上有一本书"是 There is a book on the desk。这两个"有"，千万别混。

there be：某地存在某物

表示"某个地方有什么"，结构：

• There is + 单数/不可数 + 地点
• There are + 复数 + 地点

• There is a cat under the table. 桌下有只猫。
• There are five students in the classroom. 教室里有五个学生。

have：某人拥有

主语是人/动物，"拥有"：

• I have a cat. 我有一只猫。
• She has long hair. 她留长发。

就近原则

there be 中 be 动词跟着紧挨着它的名词走：

• There is a pen and two books.
• There are two books and a pen.

否定和疑问

• 否定：There isn't / There aren't
• 疑问：Is there...? / Are there...?
• 回答：Yes, there is. / No, there aren't.

时态变化

be 动词随时态换：

• There was a shop here.（过去）
• There will be a meeting tomorrow.（将来）

一句口诀：there be 表存在，have 表拥有；is are 看就近，别按总数数。