五年级上册 there be 句型专项讲解

五年级上册 第一、二单元语法there be 句型专项讲解there be 句型的基本结构为： There + be ( is , are ) + 主语+ 地点状语(在地方)。意思是：在某个地方有某人或某物。1、肯定句形式为： is 可数名词单数 / 不可数名词 地点状语 There are 可数名词复数 地点状语例：There (be) some milk in the glass. There (be) some apples in the tree. There (be) a book on the desk. There (be) a lot of books on the desk. There (be) a pair of shoes under the bed.2、肯定句改为否定句分两步：1)在be (is/ are ) 动词后加not。 即: is 改为is not (isnt ) ；are改为are not (arent) 2)若句子中有some 一定要改为any，其他内容不变 。 例一： There is a dog in front of the house。（改为否定句） There a dog in front of the house。 例二： There are some dogs in front of the house。（改为否定句）There dogs in front of the house。练习： There are some buildings in the school. （改为否定句） There buildings in the school. there be 就近原则： 如果there be 句型中有几个并列主语时，be动词的形式要与离其最近的一个主语在数上保持一致。例: There _ (be) a pie and two hamburgers on the plate. There_(be) two hamburgers and a pie on the plate. There (be) some milk and apples in the fridge. There (be) some apples and milk in the fridge.3、there be 句型的一般疑问句修改步骤（五步）：（1）找出be动词（is，am，are）。 （2）将be动词（is，am，are）提前。（3）有some 变为any。（4）第一人称变为第二人称：I / we you ； my / our your ；me / us you ( 5) 句号变问号（？），肯定回答用：Yes, there is/are. 否定回答用：No, there isnt /arent.例: There are some girls in the room . （改为一般疑问句，并作肯定回答与否定回答） Are there any girls in the room ? Yes, there are . / No , there arent.练习：1) There is an apple on the table. （改为一般疑问句，并作肯定回答与否定回答） 2) There is some milk in the bottle.（改为一般疑问句，并作肯定回答与否定回答）4、特殊疑问句形式1）、对主语提问。对“人”提问，用Who is ? / Whos ?如：There is a boy in the playground.(对划线部分提问) Who is in the playground? 或 Whos in the playground? There are some boys in the playground.(对划线部分提问) Who is in the playground? 或 Whos in the playground? 对“物“提问，用Whats? / What is? 如：There is a bird in the tree. (对划线部分提问) Whats in the tree? 或 What is in the tree? There are some birds in the tree. (对划线部分提问) Whats in the tree? 或 What is in the tree?注意：无论原句的主语是单数还是复数，对其提问一般都是用 be 动词的单数形式，但回答却要看实际情况。练习：There are some flowers in the school. (对划线部分提问) in the school ?2）对地点状语提问，用Where is / are主语？如：There is a bird in the tree. (对划线部分提问)Where is the bird ? 或 Wheres the bird ?There are some birds in the tree. (对划线部分提问) Where are the bird ?练习：There is a boy in the playground.(对划线部分提问) the boy？There are some boys in the playground.(对划线部分提问) the boys ?3)对数量的提问：对可数名词数量的提问，用How many +可数名词复数+are there+地点状语？ There are two birds in the tree. (对划线部分提问) How many birds are there in the tree ?练习：There is a bird in the tree. (对划线部分提问) in the tree ? There are some boys in the classroom. (对划线部分提问) in the classroom ?对不可数名词量的提问用How much +不可数名词+is there+地点状语？There is some milk in the fridge. (对划线部分提问)How much milk is there in the fridge ?5.语法讲解未完待续小试牛刀：1.翻译：我的课桌上有一本书。 （改为否定句）： 2.There are some dolls on my bed .( 改为一般疑问句，并作