Q: Read the article and select the best answer. Article: Many people may not believe it, but this is what is happening: polar bears are dying out! They are dying because they are losing a great deal of habitat due to human incursion and global warming. They are dying because of starvation as well. With the sea ice they depend on for survival shrinking, it is becoming increasingly difficult for them to find food. An ecosystem is highly dependent on all of its parts, and removing even a single species can result in serious consequences. Polar bears are at the top of the predators where they live. They play an important part in the ecosystem. They feed on seals, fish and deer. Several other animals depend on the kill of polar bears. The failure to save polar bears might result in loss of these predators. In addition, all large predators perform a very important function in their habitat: helping to control the populations of other species. When an animal group loses its natural predators, its population will rise rapidly, having a direct result in population decrease of other groups. A huge boom in population of Arctic seals would have a direct effect on the prey of seals, and could reduce numbers of certain types of fish. This could also have a direct effect on humans, who might have to compete with Arctic seals for food supplies from fish. Lack of polar bears could eventually affect human food supply. Human beings shall save polar bears to ensure the food supply. There is no doubt that we should save polar bears. However, there is still another question: can they be saved? This is a matter that scientists debate because of rapid degradation of the polar bear' environment in recent years due to warming temperatures. It is estimated that if the bears cannot adapt to changing climates, they might die out before the end of the 21stcentury, with about 50% of the animals disappearing by 2050. So time is running out! There are some things that may help slow down global warming and help delay extinction of polar bears. These include finding new energy sources... Question: Which is NOT the threat to the survival of polar bears according to the passage? Options: A: Human's killing. B: Global warming. C: Habitat loss. D: Lack of food.
A: A

Q: Read the article and select the best answer. Article: When we asked Oprah to pick the 10 books she's read in the past decade that have mattered to her most, she was momentarily stumped. For someone who describes herself as --inspired, challenged, and sustained by books, it was almost impossible for Oprah to stay within our limit of 10. Still, she offered up the following, but she emphasized that it was only a sampler of delightful titles that have also managed to teach her -- and all of us -- a few things. 1. Discover the Power Within You By Eric Butterworth 256 pages; Harper One Advice from the internationally known spiritual teacher. 2. A New Earth By Eckhart Tolle 316 pages; Plume There's a reason Oprah picked this for her Book Club in 2008 -- and that she gave audience members Post-it pens along with their copies.So much wisdom, so little time! A real-life guide to living your best life. 3. The Poisonwood Bible By Barbara Kingsolver 576 pages; Harper Perennial This novel is about a family involved in the political trouble of postcolonial Africa. It established Kingsolver as one of our wisest observers of history, politics, and human nature. 4. Night By Elie Wiesel 120 pages; Hill and Wang A memoir of a childhood suffered in concentration camps during the Holocaust. It's horrific butuplifting. --I gain courage from his courage,|| Oprah says. 5. A Fine Balance By Rohinton Mistry 624 pages; Vintage A Dickensian novel about India during the Emergency. Like the aftermath of September 11, it teaches us about cultures we haven't understood. "It takes us out of our own little shell and exposes us to a whole other world out there." Oprah say. 6. East of Eden By John Steinbeck 608 pages; Penguin This classic is about good and evil as played out in a late-19th-century California ranch family. If you didn't read it in high school, read it now. If you did, reread it! 7. The Story of Edgar Sawtelle By David Wroblewski 576 pages; Harper Collins A kind of Hamlet on the prairie, this is the wrenching story of a mute boy and his dog. Oprah compares it to East of Eden and... Question: What makes Oprah declare The Pillars of the Earth great? Options: A: The advice on discovering the power. B: The story of a mute boy and his dog. C: The challenges of building cathedrals. D: The good and evil in a California family.
A: C

Q: Read the article and select the best answer. Article: Are you nervous about climbing because you think it's too dangerous? Do you feel you're not fit enough to climb? Do you know how to start climbing? Let's consider the idea that climbing is dangerous. Being afraid is natural, but if you use suitable ropes and other climbing equipments you will feel completely safe. Climbers are usually very careful because they know what they are doing is dangerous. Accidents happen, but when they do, they tend to attract a lot of publicity. As a result, people think there are many more accidents than there are in reality. You cannot expect to start climbing straight away. Climbing is a challenge and challenges take time. It is necessary first of all that you achieve a good level of fitness. Begin as soon as you become interested in climbing--go to the gym, go swimming, take up jogging and continue to do so throughout your training period. Discover as much as you can about climbing. Visit the library and find books especially for beginners or buy climbing magazines and look for articles which describe your situation. Look up information on the Internet. Find out about equipment, methods and places to go. Next, take a course on a climbing wall. There are plenty of climbing walls all over the country which have trained and qualified people as instructors. Call your local leisure centre to find out if there is one in your area. These training sessions are a quick way to get experience and you are likely to meet other beginners. After this, you can do an outside course or join a club where you can meet climbers of all abilities and eventually join in group-climbing events. At first you may not understand the importance of a good training period, but after you have completed your first climb and you are standing safely at the top of a rock feeling thrilled, then you will know was the right thing to do. Question: The article is written by _ . Options: A: a doctor B: an experienced climber C: a beginner D: a fitness instructor
A: B