Cyclist Alain Such has been dropped from the Ingotel cycling team for two years after a positive drug test at the Institute of drug Free Sport. “ I was flabbergasted.” Said Didier Garcia, from Team Ingotel. “Alain joined our team last month and we had no idea that he was being examined.”

    It's a story that has become more and more familiar in recent years. Dr. Mohammad Farnood, a leading sports scientist from Cairo, Egypt, said, “ It is thought that some athletes will look for other ways to improve performance in addition to using drugs.”

    However, it has not always been against the law. In the Olympics in 1904, Thomas Hicks won the marathon after using drugs in the middle of the race. In fact, the first one didn't make him feel better for long, so he was given another and, as a result, he fell down soon after finishing and knew nothing. Another one may well have killed him.

    Things are very different today. Some scientists are considering the possibilities of using genetic engineering to further develop athletes' abilities. “If it works with no risk of discovering,” said Dr Farnood, “ then it's likely to become common practice for athletes.”

    Researchers are looking at the possibility of identifying “athletic” genes and correcting weak ones. Put into practice, this would make a person healthier and stronger. Once scientists understand what genes of top athletes look like , it might even become possible to identify “athletic” genes in young people, and then money could be spent on children who have the most promising genes.

    “People are beginning to recognize that genetics can in many ways do good to our society, for example in saving lives and in creating better quality food for people.” Dr Farnood says. “ So, is it fair to use genetic engineering in sport? You could ask if it's fair for some runners to use the latest scientifically developed footwear. The key question is whether it's available to everyone.”

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

Visitor Guide to Birch Aquarium General Information

Thank you for respecting the health of our animals and the experience.

◆ Keep voices low in exhibit areas.

◆ No tapping on marine life displays.

◆ As a courtesy, please silence cell phones.

◆ Please use trash and recycling bins.

◆ Birch Aquarium is smoke-free facility.

Photography

    For the safety of our live animals, please do not use flash photography. Visitors may be photographed or videotaped by aquarium staff for professional use, or by the media covering aquarium news. Entry into the aquarium grants permission for use of these images.

Refreshments

    Splash Cafe offers a variety of gourmet, sustainable, and organic sandwiches, snacks, and beverages.

Drinks, food, and gum are not permitted inside the aquarium.

Restrooms ＆ Baby Care

Changing tables are located in both the men's and women's restrooms.

Re-entry

    Please keep your ticket or have hand stamped at the Visitor Service Office if you plan to exit and re-enter the same day , including visits to Splash Coffee Shop.

Visitors with Disabilities

    See the Visitor Information Center for assistance. All exhibits are wheelchair accessible. Wheelchairs are available at no charge.

Emergencies /First Aid/ Lost ＆ Found

Go to the Visitor Service Office or alert the nearest staff member.

Don't Miss!

    Watch a diver hand-feed the fishes—including three species of sharks—during our Kelp Tank Dive Show.

Learn about this unique and beautiful undersea world during a live, interactive presentation. After your visit, view the exhibit at home through our live, online Kelp Cam.

    To eat only a vegan（素食的） diet might sound difficult, especially with many popular dishes containing meat or other animal products. Yet in 2017, veganism was described as “the fastest - growing lifestyle movement” in the UK, according to BBC news.

    A study by a UK market research organization, suggests that over 542,000 Brits went vegan during the previous decade, an increase of 360%. And the main force behind this increase was those aged 15-34 years old — 42% of recent vegans fall under that age range.

    So why exactly has veganism become so popular among young Brits?

    One reason could be that many young people want to protect the environment, as less meat consumption is known to be beneficial to the environment. Global meat manufacturing is believed to cause 18% of the world's greenhouse gas emissions（排放）, even more than that of all the world's cars, trains and planes combined. Another reason is that many of today's young people believe that it's wrong to kill animals to be used as food.

    Jess Murray, 22, a student at University College London, said that he chose to become vegan after realizing that eating animals is a choice that people make, rather than something that we need to do to survive. “Becoming vegan was an ethical (道德的) decision,” he told the Guardian.

    Social media is also believed to have given rise to the increase in veganism. Platforms such as Facebook allow young vegans to connect with each other much easier, while others such as Instagram have led to the creation of “vegan celebrities (名人)”, who share lips on vegan lifestyles.

    Despite the rising of veganism, Laura Wyness, an expert in diet and nutrition, said that meat is very important for people's health. “A strict vegan diet makes it difficult to get some minerals and vitamins that your body needs,” Wyness told BBC news.

    However, the popularity of veganism doesn't seem to be fading. “It feels more like this is something that is sticking.” said an expert of the Vegan Society, a UK charity that promotes veganism.

    My friend Susan has a huge-hearted husband. He is once again on the front lines of fighting the fires in Northern CA. As a Chief Battalion leader, his job is very dangerous and his time away from his family is often for weeks at a time during "fire season".

Every time before he leaves, Ethan, Susan and each of the three teens hold one another and thoughtfully each shares the best of their traditions — each promises to do the tasks that will keep the family a well-oiled machine while Ethan is away.

    Ethan has brought back animals that lost their homes in the fires. By now, a gray rabbit, two parrots and a small group of Nubian goats have been added into the family.

    When Ethan is on duty, Susan keeps checking her cell phone for Ethan's text messages. His substantial (大量的) white facial hair is often mistaken for that of Father Christmas by children who are carried out of their burning homes by him.

    For each rescued child, a toy bear is waiting to be matched with him/her. For each adult, Ethan provides clean clothes. He finds pleasure in doing his job well. He is grateful to be often on the front line with frightened people and their poor pets.

    I am mentioning Ethan because by now the big fire has been spreading widely for a week. It has caused 55 deaths and left 500,000 people homeless. Now I am here at my school site, and the smoky air is keeping our students inside, waiting for rescue.

    GROUP EVENTS & PARTIES

    Wanting to have a great time for a special occasion (场合), but are tired of the usual restaurant dinner, or house party? If so, then bring your group to Florida Surf Lessons to go surfing and then get ready for a great time on the beach, and in the surf!

    Tell us what your theme is and then let the professionals at Florida Surf Lessons take care of the rest!

    Birthday Parties: Surfing birthday parties are a fantastic way to celebrate life by getting out there and experiencing it. Guests at a surfing party will be grateful for this opportunity to join you in beginning this new and exciting challenge in life. We provide goodie bags (礼品包) and all. Parents: Not only will your child appreciate you but your celebrity status (名人地位) with their friends will soar!

    Teams & Clubs: Mix up the daily routine by taking your team or club surfing with Florida Surf Lessons. Your group is sure to have a wonderful experience.

School Field Trips: Attention teachers! Give your kids a field trip that is educational, fun and sure to please.

    Reunions & Family Events: Surfing is a terrific way to bring loved ones and friends together.

    Graduation Parties: Let's go surfing to celebrate this great occasion.

    Age Requirements: Min: 5 years old — For Both Kids and Adults—Men and Women

    Group Size: Over 5 People

    When Offered: Every day from July 1 to August 30. Click Here For More Information!

    Cost: $48.00 per person(A 20% discount will be given to a group of over nine people)

    Included: Professional Surf Instruction + Surfboard + Party Favors

    Lesson Length: 3 Hours (booking ahead of schedule is needed)

    Male And Female Instructors Available: Yes

    Contact Us: 561-625-5375· info@floridasurflessons.com

Biologists from the John Innes Centre in England discovered that plants have a biological process which divides their amount of stored energy by the length of the night. This solves the problem of how to portion out (分配) energy reserves during the night so that the plant can keep growing, yet not risk burning off all its stored energy.

While the sun shines, plants perform photosynthesis (光合作用). In this process, the plants change sunlight, water and carbon dioxide into stored energy in the form of long chains of sugar, called starch (淀粉). At night, the plants burn this stored starch to fuel continued growth.

"The calculations are precise so that plants prevent starvation but also make the most efficient use of their food," said study co-author Alison Smith. "If the starch store is used too fast, plants will starve and stop growing during the night. If the store is used too slowly, some of it will be wasted. "

The scientists studied the plant Arabidopsis, which is regarded as a model plant for experiments. To give the plants some math tests, the biologists let night arrive unexpectedly early or late for them.

During one of the exams, they shut off the lights early on them that had been grown with twelve-hour days and nights. Putting them into darkness after only an eight-hour day means they didn't have time to store as much starch as usual. And this forced the plants to adjust their normal nightly rhythm.

Amazingly, even after this day length trick, the plants did very well in their exams and ended up with just five percent of starch left over at the end of the night. They had neither starved, nor stored starch that could have been used to fuel more growth.

The authors suggested that similar biological calculators may explain how a migratory bird, the little stint, can make a five-thousand-kilometer journey to their summer habitat in the Arctic and arrive with enough fat reserves to survive only approximately half a day more, on average.

The results of the study were published in e Life.