一、定义
表示某地或某时存在有某人或某物或某事，称之为“存在句”。
二、特点
1.遵循就近原则
①There is a pen and two books on the desk. 桌子上有一支笔和两本书。(此时离谓语部分的be最近的主语是a pen，所以be动词用单数is)
②There are two books and a pen on the desk. 桌子上有两本书和一支笔。(此时离谓语部分的be最近的主语是two books，所以be动词用复数are)
2.时态(可与各种时态使用，初高中常考的有一般现在时、一般过去时、一般将来时，高中还会考现在完成时、过去完成时等)
①There are five people in my family. 我家有五口人。
②There was a tree in front of my house two years ago. 两年前我家门前有棵树。
③There will be a football match in our school tomorrow. 明天我们学校将会有一场足球比赛。
④There have been many trees in our city so far. 到目前为止，我们学校已经有很多树了。
⑤There had been many trees here before you came. 在你来之前，这里已经有很多树了。
3.与情态动词、助动词连用
①There must be a football match in the playground. 操场上一定有一场足球比赛。
②There can't be a football match in the playground. 操场上不可能有足球比赛。
③There may be a foot ball match in the playground. 操场上可能有一场足球比赛。
4.句型转换
①肯定句(There be 其它)
There is a cat in the house. 房子里有一只猫。
②否定句(There be not 其它→时态标志词后加not, 助动词情态动词后加not)
There isn't a cat in the house. 房子里没有猫。
③一般疑问句 回答(be there 其它？→there问there答, 不用人称代词)
--Is there a cat in the house? 房子里有猫吗？
--Yes, there is.
--No, there isn't.
④特殊疑问句(特殊疑问词 一般疑问句)
What is there in the house? 房子里有什么？
5.常考固定句型
①There is no doubt/possibility/chance... that 句子，毫无疑问的是....../毫无可能性的是....../毫无机会的是......
There is no doubt that it will rain tomorrow. 毫无疑问的是，明天将会下雨。
②There is no need for sb. to do sth. 对某人来说，做某事没必要。
There is no need for Tom to leave Guangzhou. 对Tom来说，离开广州没必要。
③There is no point/sense (in) doing sth. 做某事没有意义。
There is no point in loving someone like him. 爱上他这样的人没有意义。
三、特殊点
1.There be 涉及的非谓语
(1)There be变非谓语→常见有there to be(更多是词汇-to do用法搭配使用，比如want/expect/hate/intend to do sth.)和there being(词汇-doing用法搭配使用，或用于插入语作为限制或增加条件)
①Tom wants there to be some delicious food now. Tom现在想要有美味的食物。
②Tom dreams of there being a good job. Tom梦想有一份好工作。
③There being some delicious cakes on the desk, Tom hurried to eat them and felt full. 桌上有些蛋糕，Tom很快吃掉，感觉很饱。
(2)There be 其它 非谓语 其它→常见有非谓语doing和done
①There is a cat looking at you. 有只猫在看着你。(谓语部分是is，非谓语部分为looking，此处是猫主动看你，用-ing形式)
②There is a cat called Kitty. 有只猫叫Kitty。(谓语部分是is，非谓语部分是called，此处是猫被叫做Kitty，被动用动词过去分词-ed)
(3)常见there be中be可替换的词
①There exists a truth in this thing. 这件事存在一个真相。
②There lies a river in front of my house. 我家门前有条河。
③There stands a cat in front of the car. 车前站着一只猫。
2.there be与have/have got的区别(常考)
(1)there be强调“存在有”，have/have got强调“拥有”
①There is a cat in my house. 我家存在有只猫。
②I have/have got a cat. 我拥有一只猫。
(2)注意一般将来时，there be句型为there will be，不能用have(这里指不能用表示“有/举行等实际意思”的have，注意完成时态等里边的时态助动词have/had是可以用在there be句型的，不要一棒子打了哈)
①There will be a basketball match tomorrow. (√)
②There is going to be a basketball match tomorrow. (√)
③There will have a basketball match tomorrow. (x)
④There is going to have a basketball match tomorrow. (x)
后记
There be句型最常考的是就近原则、一般将来时的there will be、there be回答，这里涉及的情态动词must be/can't be/may be，在之前的谓语动词文章有情态动词详细介绍，有需要的朋友可以看看~非谓语动词最近会开，届时也可以结合看看~
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