Unit6 topic1 语法及写作【帮课堂】2021-2022学年七年级英语下册同步精品讲义（仁爱科普版）

Unit6 topic1 语法及写作 There be句型 一 There be句型知识清单一： l.There be的基本用法和基本句型。there be句型的基本用法：表示“某地有某人（或某物）”。there be的基本句型为“There be+代词或名词(短语)+地点状语”。这里there是引导词，没有词义，be是谓语动词，be后面的代词或名词（短语）是主语。 There is a book on the desk.书桌上有一本书。 There are two trees in front of the house.房子前面有两棵树。有时候为了强调，可以将地点状语放在句首，如：Behind the house there is a big tree.房子后面有一棵大树。 2.There be结构中的主谓一致。 (1)当动词be后所接的名词是单数可数名词或不可数名词时，be应该取单数is;当其后所接的名词是复数可数名词时，be用复数are。 如：There is a man at the door.门口有个人。 There is some water in the bottle.瓶子里有些水。 There are some workers in the street.大街上有一些工人。 (1) 如果there be后面是几个并列名词作主语，动词be的形式一般和最靠近它的那个名词保持数的一致。There is a pen and two books on the desk.书桌上有一支钢笔和两本书。 (2) There are two books and a pen on the desk书桌上有两本书和一支钢笔。 及时练习： ①There (be)an apple and two oranges in the basket.An apple and two oranges (be)in the basket. ②There (be)two oranges and an apple in the basket..=Two oranges and an apple (be)in the basket. ③There (be) some meat and some eggs in he box. Somemeat and some eggs (be)in he box. 答案：①is;are②are;ae③is;are 3.There be句型的一般疑问句及其回答。there be句型的一般疑问句是将be放在here之前，回答时用yes或no,后接简单答语。 如：一Is there a cake on the table'?桌子上有块蛋糕吗？一Yes,there is.是，有。 一No,there isn't.不，没有。一Are there any apples in the basket'?篮子里有一些苹果吗？一Yes,here are,是，有。一No,here aren't不，没有。 4.There be句型的否定句。there be句型的否定句有两种构成方式，一种是将否定副词not放在be之后。如：There isn't a box in the room.房间里没有盒子。 There aren't any pens on the desk.课桌上没有钢笔。 另一种是在主语前加上不定代词no,如：There is no book in the bag包里没有书。Thee is no water in the bottle,瓶子里没有水。There are no pictures on the wall.墙上没有图画。这里的no=not a/an,后面接单数名词，或者no=not any,后面接复数名词/不可数名词。 如：There is no book in the bag.=There is not a book in the bag. There is no water in the bottle.=There is not any water in the bottle. 5.There be句型的缩略形式。(1)there is可以缩略为there's。 如：There is a basketball under the desk.=There's a basketball under the desk.注意：一般疑问句的简略回答时，there is不缩略。如：Yes,there is.不能说成Yes,there's. (2)there are在正式文体中一般不缩略。 There be句型知识清单二； ther