1 . More scientists are exploring cellular senescence(衰老)—a state in which cells(细胞)no longer divide. Senescent cells, which build up in older bodies, have a link to age-related conditions such as dementia(痴呆) disease.
Scientists are exploring drugs that treat senescent cells. But the most promising tool against the bad effects of senescent cells, experts say, is exercise.
Today, LeBrasseur, who directs a center on aging at Mayo, says exercise is “the most promising tool that we have” for good health in late life, and its power spreads to our cells. Research suggests exercise prevents the buildup of senescent cells, helping the immune(免疫的)system clear them and fight the cell damage that can affect aging.
Last year, LeBrasseur led a study that provided the first sign in humans that exercise greatly affected senescence. It cut signs in the bloodstream of the effects of senescent cells in the body.
After a 12-week exercise program, researchers found that older adults had cut signs of senescence and improved body strength, physical ability and reported health. A recent study collects even more facts—in animals and humans—for exercise as a treatment to fight against senescence cells.
While such studies are not well-known outside scientific circles, many older adults connect exercise with youthfulness. Farmer Mike Gale, 81, put in a track and field throwing circle on his large farm in California. He and some of his friends throw the discus(铁饼) and use other exercise equipment. “I'd like to be competing in my 90s,” Gale says. “Why not?”
95-year-old Richard Soller says exercise keeps him fit enough to deal with what comes his way—including the discovery that his wife of 62 years had developed dementia. The two sometimes walk the streets of their neighborhood together, holding hands. “Do as much as you can,” he says. “That should be the goal for anyone to stay healthy.”
1. What do we know about LeBrasseur?| A．He discovered the cause of aging. | B．He developed drugs to treat aging. |
| C．He tested with animals and humans. | D．He firstly proved exercise stops aging. |
| A．Uncertain. | B．Confident. | C．Doubtful. | D．Anxious. |
| A．To support his or her ideas. | B．To encourage people to exercise. |
| C．To praise him for his true love. | D．To introduce activities for the old. |
| A．Aging Secret Comes to Light | B．Aging Diseases Seriously Affect Health |
| C．Exercise Is Best Tool Against Aging | D．Elderly People Can Also Live Active Life |
2 . Surf’s Up
Riding the wave can be the thrill of a lifetime. But what does it take to become a surfer?
Surfing—it’s addictive
Surfing is the most exciting watersport there is. Serious surfers must be very brave, love adventure and have lots of energy. Once they’ve experienced the excitement of a ride on top of the waves, they never want to stop.
Finding the waves
Many surfers travel around the world searching for the perfect wave, moving from one surf festival to another and checking weather forecasts to see where the really exciting waves are expected next. A surfer’s greatest disappointment would be missing the opportunity to surf in the best weather conditions.
The international sports
Hawaii is where the sports began—the place which most surfers see as their “true home”. They love nature and the excitement they get from the deep waters. Enormous waves crash along mile after mile of beautiful sand, and every surfer dreams of experiencing surfing in Maui or Oahu. Other greatest locations include Australia, the west coast of the US, the Caribbean, Brazil, South Africa, The Canary Islands, and Cornwall.
Two essentials: strength and fearlessness
It takes time for a beginner to learn the technique, but during a long hot summer, who minds practising? The professionals are in the sea every day, and then come back onto the beach to do some exercise. They need to be strong swimmers with good balance and plenty of courage to be expert surfers.
Never easy—but always enjoyable
It can take a few weeks or a whole summer for you to learn to catch a wave at the right moment, stand up on your board and stay there. It’s an amazing feeling when you look down and see your feet on the board and realize you are finally standing up on the sea, even if you aren’t very steady.
1. What is the special concern of the surfers participating in a succession of festivals?| A．The local weather information. |
| B．Personal experiences and qualities. |
| C．The training process and technique. |
| D．Geographical situation and equipment. |
| A．Australia. | B．South Africa. |
| C．The west coast of the US. | D．Maui or Oahu in Hawaii. |
| A．An advice leaflet. | B．A sports textbook. |
| C．A science magazine. | D．A travel and fitness guide. |
3 . “My Edinburgh” photography competition
Edinburgh Libraries invites you to take part in the “My Edinburgh” competition on Edinburgh Collected. Add a photo of your favourite place in Edinburgh to Edinburgh Collected and tell us what makes it special to you.
The photography competition is free to enter but all entries must be entered via the Edinburgh Collected website (www.edinburghcollected.org). The competition is open to all, students and professionals alike. Your photo might show the place that offers your favourite view of the city, your favourite park, street, or local pub. It doesn’t matter, so long as you tell us what makes that place special to you.
Entries will be judged by a group of experts from Edinburgh College of Art, Museums and Galleries Edinburgh and Edinburgh Napier University. Entries will be judged on their photographic qualities as well as descriptions.
The closing date for entries is 31 August and winners will be chosen in September.
We will give a canvas print (照片帆布油画) for1st, 2nd and 3rd place entries and the winner will also receive a voucher for a Jessops Academy Photography Course.
Entrants must create an account with Edinburgh Collected to upload your photo(s). There is no limit to the number of entries you can upload, but there will be only one winning entry per entrant.
1. What do we know about the photography competition?| A．It asks entrants to pay to enter. | B．It is held by Edinburgh College of Art. |
| C．It is only for professional photographers. | D．It accepts photos of a place in Edinburgh. |
| A．Prize money. | B．A canvas print. |
| C．A voucher for photography courses. | D．A chance to visit Edinburgh Napier University. |
| A．Enter only one photo. | B．Send the entry by email. |
| C．Upload the entry before 31 September. | D．Create an account with Edinburgh Collected. |
