Unit 3 语法讲练 2026-2027学年人教版英语七年级上册
Unit 3语法精讲精练
there be 句型 + 方位介词
一、核心语法 1 there be 存在句型
1. 基础含义
there be 表示某地有某物 / 某人，强调客观存在。
区分：have /has 表示 “某人拥有”；there be 只表某地存在。
2. 主谓一致：就近原则
be 动词单复数由紧跟后面第一个名词决定：
There is + 单数名词 / 不可数名词 There are + 可数复数名词
例句：
There is a library.（单数）There are some bookcases.（复数）
3. 四大基础句式
（1）肯定句
There is + 单数… There are + 复数…
There is a teachers’ building across from the school hall.
There are trees in front of the sports field.
（2）否定句
There isn’t = there is not There aren’t = there are not
There isn’t a locker. There aren’t any flowers.
⚠ 否定、疑问句中 some 要改为 any
（3）一般疑问句
Is there…? / Are there…?
简答统一用 there：
—Is there a whiteboard? —Yes, there is. / No, there isn’t.
—Are there any lockers? —Yes, there are. / No, there aren’t.
（4）特殊疑问句（Where 提问地点）
结构：Where is /are + 主语？
回答用 It’s / They’re + 方位短语
—Where is the library? —It’s behind the classroom building.
—Where are the bookcases? —They’re next to the window.
4. 易错区分 there be VS have
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✅ There is a library.（某地存在）
✅ The school has a library.（学校拥有）
二、核心语法 2 方位介词（地点介词）
全部单元介词释义 + 例句
behind 在…… 后面There is a library behind the building.
next to 在…… 旁边，紧挨着The bookcase is next to the window.
across from 在…… 对面The teachers’ building is across from the hall.
between 在两者中间（between A and B）
The student centre is between library and gym.
in front of 在…… 前面（物体外部前方）Trees are in front of the sports field.
on 在…… 上面（紧贴墙面 / 平面）Pictures are on the wall.
under 在…… 下方The ball is under the desk.
in the corner 在角落
介词使用关键
in front of VS in the front of
in front of：物体外部前面（树在教学楼前）
in the front of：物体内部前部（黑板在教室前部）
三、综合句型模板
描述某处有……
There is a/an + 单数 + 方位词…There are some + 复数 + 方位词…
询问物品在哪里
Where is + 单数？ It’s + 介词短语
Where are + 复数？ They’re + 介词短语
询问是否存在
Is there a…? Yes, there is. / No, there isn’t.
Are there any…? Yes, there are. / No, there aren’t.
专项分层训练
专项一 3a 题型：划出 there be 动词，圈方位介词
句子：
- Where is the library? It is behind the classroom building.
- Where are the bookcases? They are next to the window.
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