The Vikings, whose ancestors came from Scandinavia, were the first Europeans     1    (reach) America. They had lived in many places of northern Europe. In 982 AD, a man     2    (call) Eric the Red was forced to leave Iceland because of a murder, for     3    he got into trouble. Eric discovered Greenland and persuaded some people     4    (settle) in Greenland. Eric set sail again, but only half of the ships made     5    to Greenland this time.

Later a man, Biarni set sail from Iceland in search     6     Eris’s party. But he     7    (blow) off course and found himself in an unknown land, from where he     8    (eventual) reached Greenland.

In the year 1002, Leif, Eric the Red’s son, followed Biarni’s directions and sailed to     9    is believed to be the coast of present-day Canada. He also discovered Newfoundland. Actually, Eric the Red and Leif’s     10    (deed) are the first records we have of Europeans sailing to the Americas.

The Vikings,a group of people     1     ancestors came from Scandinavia, were the first Europeans     2     (reach) America. In 982 AD, there were 10,000 Vikings living in Iceland. It was said that Eric the Red was forced to leave Iceland because he had committed a murder,     3     which he got into trouble. He reached Greenland and then returned to Iceland and told people about Greenland. Later, he set sail again, with 25 ships,     4     which only 14 made it to Greenland. A man called Biarni was hoping to join his father     5     was with Eric, but he was blown off course and found himself in an unknown land,     6     which he reached Greenland. In 1002, Eric the Red’s son Leif followed Biarni’s direction and sailed to the place     7     is believed to be the coast of present-day Canada. He then sailed     8     (far) south to an island now known     9     Newfoundland. We know about their deeds through stories     10     were written down centuries later in Norway and Iceland.

Code­named “Operation Overlord”， it was the     1     (large) combined sea, air and land operation in history, the aim being     2     (free) north­west Europe from German occupation. After waiting for the perfect     3     (combine) of weather, moon and tides, the date for the start of Operation Overlord     4     (set) for 6 June. With the commander’s order     5     (ring) in their ears, Allied soldiers prepared for what would become known as D­Day.     6     dawn on 6 June, thousands landed by parachute behind enemy lines in northern France. Meanwhile, thousands more were journeying across the English Channel to Normandy,     7     (protect) by fighter planes in the skies above them. The fiercest fighting was at Omaha Beach. Boats were hit and men drowned,     8     those who did make it to the beach faced heavy machine gunfire. But, despite the high cost in human life, the D­Day landings were     9     success and were seen     10     (wide) as the beginning of the end of the Second World War.

New research suggests     1     the story of Franklin’s famous experiment with lightning may be fiction instead of fact. More than one generation of school children has been amazed by his bravery and his     2     (science) approach to     3     (look) for the truth. However, neither the story nor the details of the experiment are entirely true. Although it has been proved that Franklin’s experiment     4     (take) place, more than one scientist has questioned what really happened.     5     detail about the string and the key is true. But     6     (science) all agree that if he had     7     (actual) touched the key, he would certainly have died from the electric shock. Fiction is     8     (interesting) than the truth. People have been more inspired by Franklin’s spirit of scientific     9     (explore) than by the facts themselves. But in science, facts should be proved     10     experiments and research.

Walking is the UK’s most popular sport.It has an     1     (interest) history.In April 1932, 400 people     2     (leave) Manchester and Sheffield in Northern England to walk across Kinder Scout in the Pennines.They fought against the fact     3     only rich people,     4     went there to kill birds, could visit this beautiful area.Because of the walk, National Parks in England and Wales finally began in 1949, as well as the Pennines Way, one of twenty long and     5     (wonder) paths.

You don’t have to walk the whole way if you are on one of the long paths.And there     6     (be) a great number of shorter paths for you to choose.But there are a few basic     7     (rule) you should follow.Don’t drop paper and plastic; close gates after you; keep dogs on a lead (绳索) if there are farm animals in the area; stay on the path.

Also, remember that British weather can change very quickly,    8     (especial) in the hilly north and west of the country.If you are in Wales, Scotland     9     the north of England, carry plenty of food and water, as well as warm clothes.National Parks and footpaths are the best way     10     (enjoy) it.

The Amber Room was given this name because several tons of amber were used to make it. The     1     (select) amber had     2     beautiful yellow-brown colour like honey. The design of the room was     3     the fancy style popular in those days. It was also a treasure     4     (decorate) with gold and jewels,     5     took the country’s best     6     (artist) about ten years to make.

Later, Catherine Ⅱ had the Amber Room     7     (move) to a palace outside St Petersburg where she spent her summers.     8     (sad), the Amber Room     9     (consider) one of the wonders of the world, is now     10     (miss).

Throughout history, mankind has been working hard on the space     1     (explore) to learn more about the universe though it was thought     2     (possible) before the mid-20th century. However, so many scientists were     3     (determine) to make the human dream to explore space     4     (realize). With the first satellite launched and orbiting around Earth     5     (success), Yuri became the first astronaut     6     (send) into space in 1961. After that, American astronaut Neil Armstrong succeeded in stepping onto the moon. Although the failure of Challenger was     7     (disappoint), human beings went on with their desire to explore the universe, the International Space Station being the best example.

    8     (follow) Russia and America, China became the third country in the world to send humans into space     9     (independent) in 2003,     10     Yang Liwei successfully orbited Earth. From then on, China has made great progress in space exploration. Shenzhou 6 and 7 were sent into space, the Tiangong 2 docked with Tianzhou 1, and Chang’e 4 landed on the moon.