变主系表：1.There is a refrigeratorin the kitchen.2.There is an e

变主系表：
1.There is a refrigerator in the kitchen.
A refrigerator is in the kitchen.
2.There is an electric cooker in the kithem.
An electric cooker is in the kithem.
3.There is a table in the middle of the room.
A table is in the middle of the room.
4.There is a bottle on the table.
A bottle is on the table.
5.There is a cup on the table ,too.
A cup is on the table ,too.
变否定句：
6.There is a cup on the table.
There is not any cup on the table.
7.The cup is clean.
The cup is not clean.
8.There is a box on the floor.
There is not any box on the floor.
9.The box is large.
The box is not large.
单变复：
10.There is a glass in the cupboard.
There are glasses in the cupboard.
11.The glass is empty.
The glasses are empty.
12.There is a knife on the plate.
There are knives on the plate.
13.the knife ie sharp.
The knives are on the plate.
变一般疑问句：
14.There is a fork on the tin.(肯定回答）
Is there a fork on the tin?Yes,it is.
15.The fork is dirty.(肯定回答）
Is the fork dirty?Yes,it is.
16.There is a bottle in the refrigeratorin.(否定回答）
Is there a bottle in the refrigeratorin?No,it isn't.
17.The bottle is full.(否定回答）
划线部分提问：
Is the boottle full?No,it isn't.
18.There is a pencil on the desk.(划线部分为a pencil ）
What is there on the desk.
19.The pencil is blunt.(划线部分为The pencil )
What is blunt?
20.There is a spoon in the cup.(划线部分为in the cup)
Whatis there in the cup?
21.The spoon is small.(划线部分为 small)
How is the spoon?

变主系表：
1.There is a refrigeratorin the kitchen.——A refrigerator is in the kitchen.
2.There is an electric cooker in the kithem.——An electric cooker is in the kichen.
3.Th...