Are you absent-minded? Sometimes I wish I were. So many things     1     (achieve) by people who just left something in     2     (they) pocket or forgot to switch off a machine.

Like what happened to this group of Swedish     3     (scientist). According to the British newspaper, The Independent, they left their equipment     4     (turn) on over the weekend by accident and ended up creating a synthetic (合成的) form of the world’s most absorbent material.

Their experiments to create     5     they now call Upsalite were not going well till the errors happened. Johan Gomez de la Torre, researcher at the Uppsala University, said, “A Thursday afternoon in 2011... by mistake (we) left the material in the reaction room. Back at work on Monday morning we     6     (discover) that a hard gel (胶体) had formed and after drying this gel we started to get excited.”

The breakthrough has far-reaching commercial applications,    7     (include) cleaning up huge oil spills.

It might also have been by chance that the US engineer William Percy had a bar of chocolate in his pocket     8     he visited a factory which produced equipment for radars. It was during     9     Second World War. Percy was inspired when the sweet melted and he decided     10     (investigate). The scientist observed the effect the equipment had on popcorn and other foods and invented another machine with similar technology. It was the precursor (前身) to the microwaves we see today.

Whether it’s antiques (古董), food or vintage clothes, you’ll find it at one of London’s markets. Most markets are open over the weekend, but some such as Broadway Market are home to shop, cafes and restaurants during the week — enjoy a walk here along the canal from Angel.

No matter where you are in London, there’s likely to be a park nearby. Among all the skyscrapers you’ll find some gardens hidden away, or head to larger parks, such as Hampstead Heath or The Regent’s Park (which is also home to London Zoo).

Originally built by Shakespeare’s playing company, the “Lord Chamberlain’s Men”, this reconstruction of the original Globe Theatre holds productions of Shakespeare’s plays during the summer. Choose standing tickets to get close to the action, but be warned the theatre is open depending on the weather.

No, not in the River Thames. If you do like open water swimming, head over to Hampstead Heath ponds. But, if you prefer swimming pools, there are numerous outdoor pools to choose from.

See some of London’s landmark sites on a river cruise — take a seat on the top of the boat for the best view.

London boasts many open air cinemas, so there’s something for everyone, from opera outside the Royal Opera House to British films at Somerset House — the choice is yours.

Yoho National Park is a Canadian national park.     1    (cover) an area of about 507 square miles, it was established in 1886. Yoho National Park     2    (know) as one of the four famous national parks in the Canadian Rockies. Because of its special     3    (locate), Yoho National Park has many mountains, including Mount Stephen, Mount Balfour, Mount Goodsir and so on. The     4    (tall) mountain among them is Mount Stephen. There are also waterfalls in the park. Wapta Falls is the largest waterfall. And Takakkaw Falls is     5    (official) known as the second highest measured waterfall.

Yoho National Park is close     6     three other national parks in the Canadian Rockies. To the north is Jasper National Park,     7     is the largest of the four. Banff National Park borders (接界) Yoho from the east. Kootenay National Park,     8    (name) after one of the two rivers that flow into it, is located to the south.

Although most people like to visit Yoho during the summer, there are quite     9     sizable number of visitors during the spring and autumn. Common summer     10    (activity) include camping, climbing, hiking, fishing, and wildlife viewing.

8 . Walt Disney once said, “It was all started by a mouse”, but in fact, Disneyland started with a problem. Sitting on a bench in Griffith Park and watching his daughters on the carousel (旋转木马), he wondered, “Why isn’t there any sort of amusement experience that the entire family can enjoy together?”

His idea for displaying Disney characters in a fantasy setting was far away from amusement parks and carnivals (狂欢节) that offered rides, games and inexpensive food. Instead Disneyland was thought of as an extension (扩展) of the Disney brand, and would be the first “theme park” built in the United States.

When Disney decided that he would be building a place that told a story, he knew that he would need people and technology to help create the magic and tell the stories. In 1952, Disney collected together a staff of designers, planners and artists and formed WED business, standing for Walter Elias Disney. The WED group began a long time of creative brainstorming. Its members designed and reworked Walt’s broad ideas. They visited other amusement attractions around the country to gather data and impressions and improved development plans, and created a rough construction (建设) timetable.

Construction for Disneyland began on July 21, 1954, just 12 months before the park was scheduled to open. Construction companies worked busily to meet the tight schedule and completed the project on time. Disneyland was formally opened a year later, on July 17, 1955, to excited visitors. Unlike other amusement parks of the day, Disneyland was developed and constructed to be instantly recognizable as an extension of the Disney brand and the Disney idea. The rides used a wide range (范围) of Disney themes, costumed Disney characters wandering around the park, and Sleeping Beauty Castle, the attraction at the heart of the park, was instantly recognized by millions of people since it was seen every Sunday night of ABC television.

Out of Walt Disney’s unpleasant experience as a father taking his daughters to an amusement park has come the multi-billion dollar industry of modern theme parks. Disney’s theme parks dominate (占优势) tourism on both coasts, as well as in Paris and in Tokyo. Disneyland became, in a way, the top of Walt Disney’s career.