Elderly adults who regularly drink green tea may stay more active and independent than their peers over time,according to a Japanese study that covered thousands of people. Green tea contains antioxidant chemicals that may help _ the cell damage that can lead to disease.Researchers have been studying green tea's effect on everything from cholesterol to the risk of certain cancers,with mixed results so far. For the new Japanese study,researchers decided to examine the question of whether green tea drinkers have a lower risk of frailty and disability as they grow older. Tomata and his colleagues followed nearly 14,000 adults aged 65 or older for three years. They found those who drank the most green tea were the least likely to develop "functional disability",or problems with daily activities or basic needs,such as dressing or bathing. Specifically,almost 13 percent of adults who drank less than a cup of green tea per day became functionally disabled,compared with just over 7 percent of people who drank at least five cups fl day. The study did not prove that green tea alone kept people active as they grew older. Green-tea lovers generally had healthier diets,including more fish,vegetables and fruit,as well as more education.lower smoking rates,fewer heart attacks and strokes,and greater mental sharpness. They also tended to be more socially active and have more friends and family to rely on. Although it's not clear how green tea might offer a buffer against disability,Tomata's team did note that one recent study found green tea extracts seem to increase leg muscle strength in older women. While green tea and its extracts are considered safe in small amounts,they do contain caffeine and small amounts of vitamin K,which means it could block drugs that prevent blood thickened. Which of the following is NOT the advantage of green tea? A) Reduce functional disability. B) Keep old people active. C) Make more friends. D) Suffer fewer heart attacks.
B
(Question)
My friend Jennie gave her bone marrow( )to a 50-year-old woman, a woman she has never met. At the end of March, the Red Cross called back. Six different blood elements were tested ; Jennie matched five completely and was about a 3/4 match of the six. So she was the best match. In April, Jennie went for a complete physical exam by one of the doctors who would perform the surgery. The doctor had to make sure that it would be no tread to her. The doctor told her that the surgery would need to have two quarts of bone marrow from her hip bones. Jennie would probably be released the same day the surgery took place and should expect to be painful for a couple of months. "I didn't think it was that big a deal until I realized I was a match," Jennie said. "There was not a question in my head. It didn't seem like something that was going above and beyond. " Jennie was left with two very small scars on her lower back from the surgery and was giving medication to help reduce the pain. She still felt a great deal of pressure on her lower back. "Being only 21, I felt like I am not old enough to significantly impact someone's life," Jennie said. " It seems strange to me that I could possibly save this woman's life which was being cut short by cancer. " Three weeks after the surgery, Jennie received a car from the Red Cross representative who told her the transplant was successful. "I feel good, and I think it will actually work for her. " She said, "So many people say that they'd only donate if it was for a family member or close friend. This woman was someone's family and someone's friend. Obviously no one she knows is a match, and the fact that you'd be able to help a perfect stranger is greater. " Jennie gave her bone marrow to _ . A) a close friend B) a stranger C) a classmate D) a
(Answer)
B
Ques: Crazy Festivals Mike the Headless Chicken Festival In 1945, farmer Lloyd Olsen attempted to cut off the head of Mike, a chicken, so his wife could cook it up for dinner. However, the bird didn't die and lived another year and a half, making regular trips to the fair, where people paid a quarter to see the amazing headless chicken bird. Today, the spirit of Mike the headless Chicken is celebrated with a two-day May festival in Fruita, Colorado, which includes live music, a golf tournament , and lots of tasty chicken. Roswell UFO Festival In the summer of 1947, a flying saucer crashed on a large farm outside the town of Roswell, New Mexico. The government says it didn't come from outer space, but many top UFO researchers believe it did. Knowing a good thing when it crashes in their backyard, the citizens of Roswell celebrate the even every July with a three-day festival that features a costume contest, a parade and other activities. Be careful, though ---- that _ little person next to you could be from another planet. World's Largest Rattlesnake Roundup The rattlesnake, a poisonous American snake, severs an important function in nature by keeping small pets under control, but when their numbers grow too large, they can cause serious problems for farmers. That's why every March the residents of Sweetwater, Texas, host a three-day festival to connect with the town's annual rattlesnake hunt. Visitors can learn about rattlesnakes, take a bus tour of their natural habitat, participate in a rattlesnake eating contest and so on. BugFest Every September, the North Carolina Museum of Natural Sciences in Raleigh sponsors a daylong festival that focuses on something most people try to avoid: insects. Visitors can hold bugs that are not native, cheer on racing insects and learn about beekeeping. But the highlight for many is Cafe Insecta, where bugs are the main ingredient in a variety of tasty dishes. Llord Olsen cut off the chicken's head because _ A) his family wanted to eat it. B) he wanted to sell its meat at the fair. C) his family wanted to celebrate a headless chicken festival. D) he wanted to make money by showing a headless chicken.
Ans: A
Ques:In tests, it shrank breast tumours by 80 percent and researchers believe it could also treat prostate, pancreatic, bowel and ovarian cancers. Even tumours that resist treatment with the best medicines on the market, including the "wonder drug" Herceptin, may surrender to the vaccine. The experiments so far have been on mice - but researchers hope to pilot the drug on people within two years. If all goes well, the vaccine could be on the market by 2020. Rather than attacking cancer cells, like many drugs, the new treatment arouses the power of the immune system to fight tumours. The search for vaccines has been prevented by fears that healthy tissue would be destroyed along with tumours. Researchers from the University of Georgia and the Mayo Clinic in the US focused on a protein called MUC1 that is made in bigger amounts in cancerous cells than in healthy ones.Not only is there more of it, but a sugar that it is "decorated" with has a distinctive shape. The vaccine trains the immune system to recognise the rogue sugar and turn its weapons against the cancer. "Cancer cells have a special way of thwarting the immune system by putting sugars on the surface of tumour cells so they can travel around the body without being detected," researcher Professor Sandra Gendler said. "To enable the immune system to recognise the sugar it took a special vaccine that had three parts to it. "She said it was this that "turned out to be a winning combination". The passage most probably talk about next _ A) The vaccine experiments will be performed on people soon. B) The vaccine has turned out to be perfect. C) Which parts does the vaccine consist of ? D) How does the vaccine arouse the immune system against cancer cells.

Ans:
C