As a child, Alain Robert was afraid of heights. When he was 12, he returned home from school. At the front door of his building, he looked for his keys. he didn't have them. It was 3:30 and his parents worked until 6:00 pm. Alain looked at his apartment on the eighth floor. He saw an open window. He closed his eyes and imagined himself climbing the building. When he opened his eyes, he told himself ,"I can do it." Fifteen minutes later, he was in his house and his fear of heights was gone.

    Today, Alain still climbs buildings. In 2003 , he climbed a building in London dressed as Spiderman(蜘蛛人) to advertise the movie. In 2004, he climbed Taipei 101 (one of the tallest buildings in the world). To reach the top of a building, Alain uses only his hands and special shoes. He has no rope or other safety tools.

    Alain climbs as a hobby. He also does it to make money for charity. When he climbs, he wants to send a message to people. If you have a dream—something you really want to do—it can become real. But you must be brave and keep trying. If something bad happens, don't give up. Close your eyes and tell yourself, "I can do it."

阅读下列短文，从每题所给的四个选项（A、B、C和D）中选出最佳选项。

    Students from Florida International University in Miami walked on water Thursday for a class assignment. To do it, they wore aquatic (水上的) shoes they designed and created.

    Alex Quinones was the first to make it to the other side of a 175-foot lake on campus in record time—just over a minute. Quinones, who wore big boat-like shoes, also won last year and will receive $500.

    Students had to wear the aquatic shoes and make it across the lake in order to earn an “A” on the assignment for a special course. “It's traditional in a school of architecture to do boats out of cardboard (硬纸板) for a boat race. I thought our students were a little bit more special than that,” Canaves said. “We decided to do the walk on water event to take it to the next level.”

    A total of 79 students competed in the race this year in 41 teams. Only 10 teams failed to cross the lake. Others who fell got back up and made it to the end. The race is open to all students and anyone in the neighborhood. The youngest person to ever took part was a 9-year-old girl who competed in place of her mother, while the oldest was a 67-year-old woman. A large crowd on campus joined Canaves as he cheered on the racers. He shouted encouraging words, but also laughed as some unsteadily made their way to the end.

    “A part of this is for them to have more understanding of designing and make it work better,” he said. It is also a lesson in life for the students.

    “Anything, including walking on water, is possible, if you do the research, test it and go through the design process seriously.

    See a cell phone cover that you like on Taobao? Forget about placing an order, paying the bill online and waiting for days for it to be delivered to you. In the near future, you'll be able to get it in minutes just by hitting "print" on your computer. You might find it hard to believe that you could actually "print" an object as you would a picture. But it is not that hard to understand how it would work. Just as a traditional printer sprays (喷) ink onto paper line by line, modem 3-D printers spread material onto a surface layer by layer, from the bottom to the top, gradually building up a shape.

    Instead of ink, the materials the 3-D printer uses are mainly plastic, resin (树脂) and certain metals. The thinner each layer is — from a millimeter to less than the width of a hair —the smoother and finer the object will be. This may sound like a completely new technology, but the truth is that 3-D printing has been around since the late 1980s. Back then, it was barely affordable for most people, so few knew about it.

Last year, though, saw a big change in the 3-D printing industry — printers became much cheaper. For example, 10 years ago a desktop 3-D printer might have cost £20,000, while now they cost only about £ 1,000, according to the BBC. Taken out of the factory and introduced to more diverse and common uses, 3-D printing can create just about anything you can think of — flutes (笛子), bikinis, jewelry, aircraft parts and even human organs. In fact, scientists from Cornell University in New York have just made an artificial ear using a 3-D printer, according to Science Daily. The fake ear looks and acts exactly like a natural one.

    However, as 3-D printing becomes more common, it may bring about certain problems —such as piracy. "Once you can download a coffee maker, or print out a new set of kitchen utensils (餐具) on your personal 3-D printer, who will visit a retail (零售的) store again?", an expert in 3-D printing told Forbes News. Even more frightening, what if anyone in the world could use a 3-D printer to print out a fully functioning gun?

    Budget Hotels (经济型酒店) in Bloomsbury

    Bloomsbury is one of the most central areas in London. There are many traditional-style small hotels. The hotels listed below are our picks of the best budget hotels in the area.

    Arosfa Hotel

Arosfa Hotel lies on the corner of Torrington Place and Gower St. The Arosfa was once the home of the famous Pre-Raphaelite painter, Sir John Everett Millais. The hotel takes pride in the quality, cleanliness and value that they offer to their guests. For your comfort and safety, smoking inside the hotel is not allowed.

Address: 83 Gower St, London, WC1

    Breakfast: English breakfast

    Internet service: Free WiFi and two personal computers for guests

    George Hotel

The George is a friendly and comfortable smoke-free hotel on a quiet street in North Bloomsbury. All rooms have a work desk and tea/coffee facilities are provided. It's only a 10-minute walk from King's Cross, St Pancras railway station and Euston railway station.

Address: 58-60 Cartwright Gds, London, WC1

    Breakfast: English breakfast

    Internet service: Free WiFi

    Ridgemount Hotel

    The Ridgemount is one of the cheapest hotels in the area. A friendly place and the standard rooms with shared bathrooms are provided for guests. You can speak Welsh or English with the hotel workers. They will be happy to provide useful advice on the area.

Address: 65-67 Gower St, London, WC1

    Breakfast: English breakfast

    Internet service: Free WiFi

    Arran House Hotel

    The Arran House is a popular family-run hotel. It's a little more expensive than the other hotels in the area. Rooms with shared bathrooms are provided.

Address: 77-79 Gower St, London, WC1

    Breakfast: English breakfast

    Internet service: Free WiFi

    A great number of species make their home in the vast waters of the Atlantic Ocean. Although the entire ocean makes up an ecosystem, many smaller habitats are found within, including an open-water habitat off the coast of the Northern Atlantic Ocean known as the Sargasso Sea. Sargassum is an alga(海藻) that floats in masses that can continue for miles. The waters of the Gulf Stream push the water in a northward move into this area. This constant move and varying temperature support the accumulation of the brown-colored seaweed.

    The Sargasso Sea is so enormous that one method of information collection has not been enough for scientists to obtain an accurate picture of what takes place within this ecosystem. Researchers have needed to employ several methods of sampling. Methods such as dragging nets over the surface of the water and videotaping beneath areas of sargassum have served scientists well. Information collected has shown that the Gulf Stream pushes brown algae from open water into the Sargasso Sea area, creating a diverse floating habitat in an area that would otherwise not support that wildlife.

    In the most recent study of the sargassum community off the shores of North Carolina, eighty-one fish species were documented as using the area as a microhabitat. This is an increase from previous studies. The types of fish found here are both commercially and environmentally important. The South Atlantic Fishery Management Council is working to regulate the harvesting of sargassum. The Council hopes to have the area classified as an Essential Fish Habitat. Which would afford it certain protections.

    Further research needs to be done before scientists understand how to best protect the Sargasso Sea as well as understand how it goes about supporting so many important types of wildlife.

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