UNIT 9 VOCABULARY

A large city with more than ten million people living there.

The salty water that covers a large part of the surface of the earth

Below the surface of the earth.

A place where many people live, with many houses, stores, businesses,… and which is bigger than a town.

A house which is friendly to environment.

Below the surface of the sea.

A house with a computer to run it.

A big apartment building under the ground.

• megacity

• earthscraper

• un the ground

• in the city

A_____ like a TV or a mobile phone, is a machine with a computer inside it.

• machine

• smart device

• drone

• 3D printer

A_____ is a flying machine. It can carry things.

• drone

• screen

• megacity

• battery