There be句型的用法：表示某个地方存在某物或某人,be动词的单复数必须依 主语的变化而变化。
1. 肯走句
（单数名词和不可数名诃用is/was,复数名词用are/were） There is a book on the desk.（单数） There are books on the table.（复数）
There was a book on the desk.（单数，过去时态） There were books on the desk.（复数，过去时态） There is some water in the bottle.（不可数）
There was some water in the bottle.（不可数，过去时态）
2. 否定句
（在肯定句中的be动诃后加nl） There isn't a book on the desk.（单数） There aren^ books on the table.（复数）
There wasn't a book on the desk.（单数，过去时态）There weren't books on the desk.（复数，过去时态）There isn^ any water in the bottle.（不可数）There wasnJt any water in the bottle.（不可数，过去时态）
3. 一般疑问句及其回答
（把肯定句的be动词提前）
Is there a book on the desk?（单数）Yes, there is. / No, there isn't. Are there books on the desk?（复数）Yes, there are. / No, there aren't.
Was there a book on the desk?（单数,过去时态）Yes, there was. / No, there wasn't. Were there books on the desk?（复数，过去时态）Yes, there were. / No, there weren't.
■特殊疑问句
（对划线部分提问） 主语是物，用\"what”提问： There is a book on the desk. What is on the desk? 主语是人，用Jvho”提问： There is a girl in the room. Who is in the room?
对可数名词的数量提问，用\"how many\"： There are two books on the desk.
How many books are there on the desk? 对不可数名词的数量提问，用“how much\"： There is some water in the bottle.
How much water is there in the bottle?
五.There be的其他知识点
1. 就近原则：be动词的单复数形式和第一个靠近there be的主语保持一致。There is a book and two pens on the desk. （一本书，最靠近 there be,所以用单数） There are two pens and a book on the desk.（两支笔，最靠近 there be,所以用复数） 2. 肯定句变否定句和一般疑问句有some的，一般变成any （some可以修饰可数名词，也可以修饰不可数名词） There is some milk in the bottle.（肯定句） There isn't any milk in the bottle.（否定句） Is there anymilk in the bottle?（一般疑问句） There are some books on the desk.（肯定句）
There aren't any books on the desk.（否定句） Are there any books on the desk?（一般疑问句） 3. there be 和 have 的区别：
there be指客观存在，表示“某处有某人煤物”：have指所属关系，表示\"某人/某物有某 物”。
There are all kinds of books on my bookstore.我的书柜上有各种各样的书。（书并不 属于书柜的，只是被摆上去放着，所以用there be）
I have all kinds of books.我有各种各样的书。（书是属于\"我自己的S所以用have）
拓展：There be句型的时态变化和其他形式 一般现在时：There is/are 一般过去时：There was/were 一般将來时：There is/are going to be
There will be
现在完成时：There have/has been
力II上情态动词：There can be.There may be.There must be.There should be. There used to be
-s
选择题
1 s There _______________ a meeting tonight. A will be
B had be
C is going be
D was
2. There ___ a knock at the door just now ・ A will be
B has been
C were
D was
3. There_a pen and two books on the desk now. A are B be
C is
D was
4. There is ______ on the floor ・
A . cat B ・ water C ・ boxes D ・ football
5. There are _____ on the floor ・
A ・ cat B ・ water C ・ boxes D ・ football
二. 句型转换：
1. （将句子转换成否定句）There is a bike behind the tree. 2. （将句子转换成否定句）There are some books on the desk . 3. （将句子转换成一般疑问句）There is some water on Mars.
三. 句子画线部分提问
1 x There are many things over there・ 2. There is a little girl in the room. 3. There are four children on the plavqround. 4. There are three women in the picture . 5.There is some water in the bottle . 参考答案：
一. 选择题
1 •首先观察题目本身的提示tonight ,判断该题的时态是将来时，首先排除选项A 和D。C选项的结构不正确，故选A。
2. 首先观察题目本身的提示just now ,判断该题的时态是一般过去时，首先排除 选项A和B。C选项是复数，不符和题意，故选D。
3. 首先观察题目本身的提示now ,判断该题的时态是一般现在时，首先排除选项 D。选项B为原形不正确，排除。虽然原句中的主语是a pen and two books，但 是根据就近原则,离there be最近的是a pen ,选项A为复数形式,排除。故选 Co
4. 由is可知主语应是可数名词单数或不可数名词，而A.D项中都缺少冠词a , 故选B。
5. 由are可知主语应是可数名词复数，而A, D选项为可数名词单数。B选项为 不可数名词，故选C。
二. 句型转换：
1. There isn't a bike behind the tree. 2. There aren't any bikes behind the tree. 3. Is there any water on Mars?
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