Unit 6 Topic 1语法 2023-2024学年仁爱科普版七年级英语下册

There be 句型：某地有某物 There be句型的基本结构：There is +a/an+可数名词单数+介词短语 There is+不可数名词+介词短语 There are+可数名词复数+介词短语 （就近原则：如果有几件物品并列and，is/are的使用根据最接近它的那个名词数量决定。） 例句： There is a pen on the desk. 桌子上有一支笔。 There is paper in the drawer. 抽屉里有纸。 There are thirty chairs in the classroom. 教室里有30张凳子。 There is a pen and two books on the desk. 桌子上有一支钢笔和两本书。 练习：根据句子写出be动词的相应形式。 1. There an apple on the table. 2. There some orange juice in the bottle. 3. There an apple and two oranges on the table. 4. There five eggs in the fridge. 5. There ten desks and a blackboard in the classroom. There be句型在不同句型中的结构 肯定句：There is +a/an+可数名词单数+介词短语 There is+不可数名词+介词短语 There are+可数名词复数+介词短语 否定句：There isn’t +a/an+可数名词单数+介词短语 There isn’t+不可数名词+介词短语 There aren’t+可数名词复数+介词短语 （在否定句和疑问句中some要变为any。 另外，在变疑问句中第一人称转换为第二人称:my变your;our变your） 练习：将下列句子改为否定句。 1. There is a television on the table. 否定句： 2. There are some apples in the box. 否定句： 3. There is water in the pond. 否定句： 一般疑问句：be动词提前，其余部分照抄，句号变问号。即： ( Yes,there is. No,there isn ’ t ) Is there+a/an+可数名词单数+介词短语 Is there+不可数名词+介词短语 Are there+可数名词复数+介词短语 Yes,there are. / No, there aren’t. 例句：There is a pen on the desk. Is there a pen on the desk? Yes,there is. /No,there isn’t. There are thirty chairs in my classroom. Are there thirty chairs in your classroom? Yes,there are. /No,there aren’t. 练习：将下列句子改为一般疑问句并做肯定回答。 1. There are many students in my classroom. 2. There is a bike under the tree. 3. There is some milk in the fridge. 特殊疑问句：特殊疑问词+一