Read the following article and select the best answer. Article: 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. Question: From the passage, we can infer that the water in this park is_. - clean - polluted - dangerous - color1ful
clean

(Question)
Read the following article and select the best answer. Article: 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. Question: The previous attempts to use high temperature for treating AIDS failed because they _ . - caused chemical changes - could not kill HIV effectively - resulted in deaths - killed both HIV and healthy cells
(Answer)
caused chemical changes

Ques: Read the following article and select the best answer. Article: 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... Question: Jonathan Bishop believes that the Internet overuse problem can be solved if people _ . - try to improve the Internet environment - become aware of its serious consequences - can realize what is important in life - can reach a consensus on its definition
Ans: can realize what is important in life

Ques:Read the following article and select the best answer. Article: It is time for students to sell such things as chocolate bars and greeting cards to raise money for their school, class or club. It is _ that they will knock on your door and you will easily hand over your cash for overpriced items that you really do not want. That is okay, though, because there are many reasons why children should be allowed to raise money for their schools and clubs. Fundraising is a great way to help children learn social skills. It is not easy to go up to a complete stranger and ask him for his money. They have to nicely ask for help, show the interested buyer what they have to offer and explain how it will help them in school. If someone refuses to buy an item, that child has to take the failure in stride , and that is a learning lesson as well. Students can learn how to deal with money by fundraising. Of course, it might seem safer for us to take charge of our children's earnings from their fundraising before it is turned into the school. However, by making them keep track of it, count it, and make sure everyone pays the right amount, they are learning an important lesson. Dealing with money is important to know about when they are older. Fundraising helps improve their schools. It is the children's school. They have to learn there and grow there. Why not let them help in making it a better place? Fundraising allows for more life experiences for the child. The raised money is used towards things like parties, trips, or for the music club to go to see a Broadway play. The children receive the rewards for their hard work at raising the money. Without fundraising, these field trips and special school memories would be missed. In a word, fundraising helps children a lot in many ways. Question: One of the important indications that children are grown up is that _ . - children can deal with money - children learn to care for others - children make a date with friends of the other sex - children like to make up

Ans:
children can deal with money