Our world natural park is one of the most famous parks in the world. Millions of visitors from different countries visit this park every year. In order to protect it, please do as follows: *Protect the natural and cultural heritage . Don't damage or deface any buildings, displays and other facilities. Take care of all plants. Put rubbish in the bins provided. *Take care when you are going up and down steps or stairs and when you are walking nearby the waters. *Please buy tickets before entering the scenic spot One ticket is only for one person. Adult: $60 per ticket .Children over6 and under 18,half price. People over 60 and children under 6 are free. *If you are going into the wooded and hilly lands, for your own safety, please go with three people at least and don't take any tinder along with you. The hill is steep, so please take care of yourself. *This scenic spot is the reserve of water source: No fishing, swimming, washing and any behaviors that are harmful to the water source. Meanwhile, please follow the management rules of the scenic spot conscientiously. *Opening time: From Monday to Friday, 8:00 a. m.--18:00 p. m.; From Saturday to Sunday, 6:00 a. m:--24:00 p. m. *Small animals such as rabbits, peacocks, squirrels, frogs must be taken care of: None of them shall be killed. If you have any trouble in visiting our world natural park, please call 477-866-7044. Our staff will do our best to help you. On weekends, the opening time is_hours longer than weekdays. A) 4 B) 6 C) 8 D) 10
C
(Question)
An experimental treatment that causes AIDS patients to develop a dangerously high fever has shown promise as a way of prolonging and improving the patients' life.Called the Biologic-HT System, the new treatment lets doctors extract the blood of a patient and heat it before circulating it back into the body. The heated blood causes the patient's body temperature to rise above 42 degrees Celsius. In people with AIDS, that increase in temperature kills some heat-sensitive HIV, the virus, most doctors say, causes AIDS. Heating the blood of AIDS patients has been tried before, say doctors. But during previous attempts, the treatment induced deadly chemical changes in the blood. The Biologic-HT System prevents those changes from happening, allowing the heat to kill viruses with few ill side effects. The new heat treatment cannot be considered a cure for Aids, says president of the company that makes the system. He says the treatment doesn't kill all traces of the virus. However, it kills enough virus particles to give a patient's immune system a reprieve in its deadly duel with HIV. Tests of the Biologic-HT treatment began on 36 patients earlier this year. The treatment takes about four hours, and the patient normally feels well enough to leave the hospital or clinic the following morning. So far, the patients who have had the treatment say they feel better and have developed no new opportunistic infections--disease that strike people with damaged immune systems. The patients also have experienced about a 50 percent increase in the number of T cells in their bodies. T cells are key disease-fighting cells of the immune system and the main target of HIV. The blood of the patient _ . A) is heated with a single injection B) is heated by being circulated at a higher rate C) is taken out from the body and then circulated through a heating system. D) is taken out from the body, heated outside and then put back into the body.
(Answer)
D
Ques: Caught in the Web A few months ago, it wasn't unusual for 47-year-old Carla Toebe to spend 15 hours per day online. She'd wake up early, turn on her laptop and chat on Internet dating sites and instant-messaging programs - leaving her bed for only brief intervals. Her household bills piled up, along with the dishes and dirty laundry, but it took near-constant complaints from her four daughters before she realized she had a problem. "I was starting to feel like my whole world was falling apart - kind of slipping into a depression," said Carla. "I knew that if I didn't get off the dating sites, I'd just keep going," detaching herself further from the outside world. Toebe's conclusion: She felt like she was "addicted" to the Internet. She's not alone. Concern about excessive Internet use isn't new. As far back as 1995, articles in medical journals and the establishment of a Pennsylvania treatment center for overusers generated interest in the subject. There's still no consensus on how much time online constitutes too much or whether addiction is possible. But as reliance on the Web grows, there are signs that the question is getting more serious attention: Last month, a study published in CNS Spectrums claimed to be the first large-scale look at excessive Internet use. The American Psychiatric Association may consider listing Internet addiction in the next edition of its diagnostic manual. And scores of online discussion boards have popped up on which people discuss negative experiences tied to too much time on the Web. "There's no question that there're people who're seriously in trouble because they're overdoing their Internet involvement," said psychiatrist Ivan Goldberg. Goldberg calls the problem a disorder rather than a true addiction. Jonathan Bishop, a researcher in Wales specializing in online communities, is more skeptical. "The Internet is an environment," he said. "You can't be addicted to the environment." Bishop describes the problem as simply a matter of priorities, which can be solved by... What does the author say about excessive Internet use? A) People should be warned of its harmful consequences. B) It has become virtually inevitable. C) It has been somewhat exaggerated. D) People haven't yet reached agreement on its definition.
Ans: D
Ques:World Expo 2010 Shanghai China is to be staged in Shanghai from May1 to October 31, 2010. If you plan to visit the Shanghai Expo this summer, China Pavilion is a must-see area for you. China Pavilion, which is called Oriental Crown , is located at the center of the Expo site. Standing 63 meters tall, the China Pavilion takes the shape of an emperor's crown, with the upper layers larger than the lower ones. Covering 160,000 square meters in floor space, the pavilion consists of a national hall and a regional hall. Construction on the China Pavilion began on December 18, 2007. The design of the China Pavilion was picked from a total of 344 designs put forward by Chinese from around the world. The pavilion possesses both traditional and modern features, which helps develop the theme of the 2010 Expo: " Better City, Better Life". For example, it is red in appearance, which contains the elements of traditional Chinese culture, and it is green indoors, with the use of energy-saving techniques. The Shanghai World Expo is expected to attract 70 million visitors from across the globe. It is estimated that 400,000 people will visit the Expo and its 140 pavilions every day during the period, but the China Pavilion is only able to receive about one tenth of the total. How to accommodate so many people in the pavilion remains a tough task. Luckily, the China Pavilion is built as a permanent landmark. During the Expo, the main structure will be used for an exhibition based on the theme of " Chinese wisdom in urban development" by explaining the values of harmony, nature and spirit. The three-story pavilion has three sections. The top floor's "Footprint of the East" will show some of the changes in Chinese cities. There, you can see a film which shows how Chinese cities have changed, especially in the past 30 years. According to Lu Chuan, director of the film, the scenery is like something from Lord of the Rings. On the second floor, "Journey of Wisdom" will explain China's four great inventions. And the ground's... On the second floor, you can _ . A) enjoy a film about the changes of cities in China B) learn what Shanghai looked like in the 1920s C) find out how paper was invented D) see how Chinese cities will look like in the future

Ans:
C