There be 句型
1.There be句型表示“某处有某物”
（1）其中there is 用于单数名词或不可数名词，如： There is a pencil case in the school bag.
There is some soup/milk /tea/coffee/juice/water/chocolate. （2）There are用于可数名词的复数，如： There are some desks in the classroom.
（3）There be 句型的就近原则：be动词后面如果跟的是不止一种物品，就根据离它最近的物品选用is或are. 如：There ______ some pictures and a telephone.
There _______a telephone and some pictures.
2.There be 句型的否定形式：
在be动词的后面加not（is not可以缩写为isn't，are not可以缩写为 aren't）注意：有some 的要改成any。 例：There is a pencil in the pencil-box.（改为否定句）
There ____________ a pencil in the pencil-box. There are some crayons on the desk.（改为否定句）
There _________ _________crayons on the desk.
“some”和“any”都有“一些”的意思.
“some”一般用于肯定句，“any”用于否定句和一般疑问句。
但在一些表示委婉请求，想得到对方肯定回答的疑问句中，也用“some”.
例：1.There are some watermelons in the basket.(肯定句) 2.There aren't any birds in the tree.(否定句) 3.Are there any toy trains on the table?(疑问句)
4.Would you like some tea?(表委婉请求)
3.There be句型的疑问句 （1）一般疑问句
There be句型的一般疑问句变化是把be动词调整到句首,再在句尾加上问号即可。但同时要注意：当肯定句中有some时,要将其改为any（否定变化也一样）
There is some water on Mars. → Is there any water on Mars? There are some fish in the water. →Are there any fish in the water? （2）特殊疑问句
There be句型的特殊疑问句形式有以下三种变化： ① 对主语提问：
1. 当主语是人时：用“who’s +介词短语” 2. 当主语是物时：用“what’s +介词短语”
注意：无论原句的主语是单数还是复数，对之提问时一般用be动词的单数形式is。（回答时却要根据实际情况来决定）
1. There are many books over there. over there? 2. There is a little girl in the room. in the room?
② 对地点状语提问：
提问地点用\"Where is / are+主语? \" 例如：
There is a computer on the desk. → Where is the computer?
There are four children on the playground. →Where are the four children? ③ 对数量提问： 一般有两种句型结构：
How many+复数名词+are there+介词短语? How much+不可数名词+is there+介词短语?
句型转换：
