There be句型的基本用法是表示“某地(或某时)存在有某人(或某物),而并非某地(某人、某物或某时)拥有什么东西”,其形式为“There be＋代词或名词(短语)＋地点/时间状语”.(其实质句式为倒装句)这里there是引导词,没有词义,be是谓语动词,代词或名词(短语)是主语.be要与主语保持人称和数的一致.否定句是在be后加not；一般疑问句是将be放在句首；反意疑问句中的简短问句是由“be(或其否定式)＋there”构成.例如：
1.There is a desk and two chairs in the room.
(紧挨着be动词的主语是a desk,是单数,故be的形式要用is)
2.There aren't two chairs and a desk in the room.(否定句)
3.Is there anything wrong with your ears?(Yes,there is/No,there isn't.)
2．动词have/has表示“有”时,它通常有三个含义：
A．表示“某人（在物质上的）所有.”这种情况下不能用there be替换.如：I have a new watch.我有一块新表.
He has a good friend.他有一个好朋友.
B．表示“某人或动物（在身体上的）长有”.这种情况也不能用there be替换.如：She has blue eyes.她的眼睛是蓝色的.A horse has two ears.马有两只耳朵.
C.表示“某物体（在结构上的）装有”.这种情况可以用there be替换.如：A clock has a round face.= There is a round face on a clock.钟上装有一个圆型的钟盘.
That room has only two windows.= There are two windows in that room.那个房间仅装有两扇窗户.
The school has 14 classes.= There are 14 classes in the school.那个学校有14个班级.
D．另外,表示“某人手中有某物”时,也用have/has.例如：
Mary has a glass of water in her hand.玛丽手中端着一玻璃杯
