Wider World 3, Students Book, Barraclough C., Gaynor S., 2016

Wider World 3, Students Book, Barraclough C., Gaynor S., 2016.

   Wider World is the portal to a fascinating world of English language knowledge and skills for the 21st century learner. The combination of authentic and engaging videos from the BBC with Pearson’s ELT expertise gives teenage learners everything they need to achieve their goals in the wider world.




Imaginary lines around the Earth.
Tonga and Samoa are two islands in the South Pacific. They are 557 miles apart. If you flew from Tonga to Samoa, the journey would take you two hours, but you would arrive twenty-two hours before you left! It might be 5 November when you leave Tonga and 4 November when you arrive in Samoa. Why? Because you would cross the International Date Line (IDL). This can be confusing for travellers and cause problems with hotel bookings!

The IDL - an imaginary line, not a real one - goes from north to south. There are two other important imaginary lines across the Earth: the Equator, which divides the world into the northern and southern hemispheres, and the Prime Meridian (which goes through London), dividing the world into the western and eastern hemispheres. The IDL is on the opposite side of the world to the Prime Meridian. The world is always turning and as we travel around the world (east or west), our days become shorter or longer. The IDL tells alt the countries in the world where the beginning of one day and the end of another come together.

The IDL starts at the North Pole and goes down to the South Pole and crosses through the Pacific Ocean. But it isn’t a straight line - it has several zigzags in it! This is so that it is the same date in one country. For example, the line zigzags east to go through the Bering Straits so that Alaska and Russia are on different sides. The country of Kiribati used to be on the eastern side but it decided to change to the western side. It wanted to be the first country in the world to celebrate the new millennium in 2000!

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