Конструкция "there is/are" используется для обозначения наличия чего-либо в каком-либо месте. Давайте преобразуем данные предложения, используя эту конструкцию.
A)
This city has many monuments.
There are many monuments in this city.
Our town has no theatres.
There are no theatres in our town.
This family has two children.
There are two children in this family.
Our group has many good pupils.
There are many good pupils in our group.
Every week has 7 days and every year has twelve months.
There are 7 days in every week, and there are twelve months in every year.
She has a lot of English books in her library.
There are a lot of English books in her library.
B)
The dog is in the room.
There is a dog in the room.
The children are in the yard.
There are children in the yard.
The students are in the laboratory.
There are students in the laboratory.
The car is near the house.
There is a car near the house.
The bench was under the tree.
There was a bench under the tree.
A lot of people will be at the stadium tomorrow.
There will be a lot of people at the stadium tomorrow.
Использование "there is/are" помогает сделать акцент на наличии объектов или людей в определённом месте, что часто используется для описания окружения или ситуации.