课件11张PPT。There be句型????There be句型表示“某地(或某时)存在有某人(或某物)。Ⅰ、
?
????1、 There is??+?单数可数名词/不可数名词?+?地点状语.
????2、 There are +?复数名词?+?地点状语.
????完整结构如下：
????There be＋代词或名词(短语)＋地点/时间状语
?
Ⅱ1、区别：?There be?句型和have都表示“有”的含义。区别如下：There be表示“某处存在某物或某人”；have表示“某人拥有某物/某人”，它表示所有、拥有关系。简音地说：There be句型表示“存在”关系，have表示“所属”关系，两者不能混合在一个句子中。??2、联系：有时候既表示“存在”又表示“所属”时，两种都可以用。也就是当have表示“包括”、“存在”的含义时，There be?句型与其可互换。
??????例1：?A week has seven days. =There are seven days in a week.??一个星期有七天。
例2： Class Three has a map on the wall.??(地图为三班所有。)
?There is a map on the wall in Class Three.(地图存在于三班。) 由此看来，There have是错误的搭配方式。ⅢⅣ（一）否定句 ?There be句型的否定式的构成和含有be动词的其它句型一样，在be后加上not即可。例1：?肯定句：?????????????There is a bike under the tree.?????????????? 否定句：加not：There?isn’t a bike?under the tree.????例2：肯定句：????????????There are some pictures on the wall.???否定句：be后加not: There?aren‘t any pictures?on the wall. ??注意：肯定句中的“some”,在否定句中要变成“any”。 (二）一般疑问句?要注意：当肯定句中有some时，要将其改为any（否定变化也一样）。 例1：??陈??述 ?句：There is some water on Mars. 一般疑问句：Is there any water on Mars? 肯定回答： Yes, there is.???????????否定回答： No, there isn‘t.???例2：??陈 ?述 ?句：There are some fish in the water. ???一般疑问句：Are there any fish in the water? ????肯定回答： Yes, there are .????????????否定回答： No, there aren't .There be句型的一般疑问句变化是将“be动词放在句首”，再在句尾加上问号。There be句型还有就近一致原则：即be动词的数应与离它最近的一个主语保持一致。形象的说法：there是个近视眼。
例如：用be动词的适当形式填空
(1)There ___ an apple and three oranges on the table.
(2)___ there three oranges and an apple on the table?
There be句型就近一致原则Ⅴ解析：(1)因为该句中an apple才是与be动词接近的主语，而并非an apple and three oranges是句子的主语，故而(1)的答案应为is。
(2)因为该句中three oranges才是与be动词接近的主语，而并非three oranges and an apple是句子的主语，故而(2)的答案应为Are。
There a cat and 3 dogs under the tree.There 3 dogs and a cat under the tree.isare表示“有某人在做某事”这一句型，即“There be＋sb.＋doing sth.＋地点/时间状语”。There be与现在进行时There is a teacher teaching in the classroom.
ⅥThere are some students having a lessons in the classroom. 翻译在桌子上有3支钢笔。
There are three pens on the table.
在树上有一些苹果。
There are some apples on the tree.
在椅子上有一只帽子。
There is a hat on the chair.
在铅笔盒里有一块橡皮。
There is an eraser in the pencil-box.HomeworkThere are three pens on the table.
There are not three pens on the table.
Are there three pens on the table?
Yes,there are. No,there aren’t.
There are some apples on the tree.
There are not any apples on the tree.
Are there any apples on the tree?
Yes,there are. No,there aren’t.
There is an eraser in the pencil-box.
There is not an eraser in the pencil-box.
Is There an eraser in the pencil-box?
Yes,there is. No,there isn’t.变否定句和疑问句，并做回答。 goodbye!
