what islands do the british islands consist of?How many parts does

The British Isles consist of two large islands: Great Britain and Ireland, and a lot of small islands, the main of which are the Isle of Wight in the English Channel, Anglesea and the Isle of Man in the Irish Sea, the Hebrides - a group of islands off the north-western coat of Scotland, and two groups of islands lying to the north of Scotland: the Orkney Islands and the Shetland Islands. 

The territory of the United Kingdom is divided into four parts:  England, Scotland, Wales, Northern Ireland.