The United Kingdom, Great Britain, Britain, England- many people 【小题1】 (confuse) by what these different names mean. Getting to know at little bit about British history will help you solve the puzzle.

From the 16th century to the 19th century, Wales, Scotland and the Kingdom of Ireland were joined one by one 【小题2】 (create) the United Kingdom of Great Britain and Ireland. In the 20th century, the southern part of Ireland broke away 【小题3】 the UK, 【小题4】   (result) in the full name we have today: the United Kingdom of Great Britain and Northern, Ireland. The four countries 【小题5】 belong to the UK work together in some areas. 【小题6】, they also have some differences. The United Kingdom has a long and interesting history to explore. Almost everywhere you go in the UK, you will be surrounded by 【小题7】 (evident) of four different groups of people who 【小题8】 (take) over at different times throughout history.

There is so much more to learn about 【小题9】 interesting history and culture of the United Kingdom. Studying the history of the country will make your visit much more 【小题10】 (enjoy).

Who invented the tea bag? One popular legend says New York tea trader Thomas Sullivan invented 【小题1】 in 1908. The tea bag was a bag 【小题2】 (contain) a small quantity of tea leaves with which to brew a single cup (沏茶). Sullivan began marketing tea bags around 1908. He shipped 【小题3】 (variety) tea bags all over the world. One day, he decided to send samples to his 【小题4】 (customer) in small, hand-sewn silk bags instead of sealing the tea in expensive tins. He thought they would remove the tea leaves from the bags to brew tea, 【小题5】 they didn’t. Some of them 【小题6】 (simple) poured boiling water over the bags. When they 【小题7】 (write) to Sullivan that the silk was too waterproof to brew good tea, he switched to more porous gauze (多孔纱布) bags. More people were interested 【小题8】 buying Sullivan’s new tea bags. Individual tea bags became more popular during the 1920s, when machines 【小题9】 (invent) to make and pack them commercially. 【小题10】 Sullivan may not have invented tea bags, his successful marketing of an idea has put individual tea bags in nearly every kitchen in America.

Some time after 10,000 BC, people made the first real attempt to control the world they lived 【小题1】 , through agriculture. Over thousands of years, they began to depend less on 【小题2】 could be hunted or gathered from the wild, and more on animals they had raised and crops they had sown.

Farming produced more food per person 【小题3】 hunting and gathering, so people were able to raise more children. And，as more children were born, more food 【小题4】(need). Agriculture gave people their first experience of the power of technology 【小题5】(change) lives.

By about 6000 BC，people 【小题6】 (discover)the best crops to grow and animals to raise. Later，they learned to work with the 【小题7】 (season)，planting at the right time and, in dry areas, 【小题8】 (make) use of annual floods to irrigate (灌溉) their fields.

This style of farming lasted for quite a long time. Then，with 【小题9】 rise of science, changes began. New methods 【小题10】 (mean) that fewer people worked in farming. In the last century or so, these changes have accelerated. New power machinery and artificial fertilizers (化肥) have now totally transformed a way of life that started in the Stone Age.