Article: Dogs have long been used to find explosives and drugs.Now,a new study shows that man's best friend can also help to find lung and breast cancer,researchers report in integrative Cancer Therapies.The findings show that trained ordinary household dogs can detect early--stage lung and breast cancers by smelling the breath samples of patients. Researchers have found that cancer cells send out molecules different from those of healthy ones,and that might be sensed by smell by the highly sensitive dog's nose. For the study,five dogs were trained by a professional instructor to respond differently to breath samples of healthy and cancer patients."The dogs learned to sit or lie down in front of cancer patient samples and to ignore control samples through the method of food reward," McCulloch explained. After a period of training,researchers tested the animals'ability to distinguish cancer patients from controls.The animals were given breath samples from 55 patients with lung cancer,3 1 with breast cancer and 83 healthy controls who were not included in the original training period. McCulloch's group found that the dogs were able to correctly distinguish the breath samples of cancer patients from those of the control subjects in about 90 percent of the cases.The dogs were also able to detecting early-stage lung and breast cancers. "These results show that there is hope for early detection,"McCulloch said.The re-searches are planning to conduct further studies on the breath composition of cancer patients to possibly design an electronic device that can do the dogs'job."A dog's nose is so powerful it can detect odors 10 000 to 100 000 times better than a human nose can.I hope people will be interested in doing this research,"McCulloch added,"It shows that there is definitely something out there." Question: We can infer from the passage that_. Yes or no, is the answer "the final goal of the researchers is to design an electronic dog to detect cancer"?
No

Article: French novelist Jules Verne (1828--1905) is often called the father of science fiction. Although he was not a great traveler himself, his characters travelled to the moon (inFrom the Earth to the Moon), under the sea (inTwenty thousand leagues under the sea), into a volcano (inA journey to the centre of the earth), around the world (inAround the World in Eighty Days) and to many other places. Jules Verne was born in the French city of Nantes in 1828. When he was a boy he ran away from home to work on a ship. However, his father soon found him and brought him home. After that he decided that any future travel he did would be in books. In 1847 his father sent Jules to Paris to study to be a lawyer. Even though he was busy writing, Verne passed his exams in 1849 with high marks. When Jules told his father he did not want to be a lawyer, his father was very angry. He stopped sending his son any money, so Jules had to earn a living by his writing. Over the next few years he wrote many stories and plays, which brought him only a little money. Then, in 1856, he met Honorine de Viane, a rich, young widow with two children. The couple married the next year. After his marriage, Verne worked as a businessman in Paris. However, he was not very successful at his job and spent most of his time writing books and doing research for the next one. In 1863 he published his novelFive Weeks in a balloonand the following year he publishedA Journey to the centre of the earthwhich made him famous. His books became so popular and earned him so much money that he was able to leave his job and work full time on his writing. In his Lifetime, Jules Verne wrote more than 50 books and he became a rich man. Many of this imaginative novels have been turned into films. Question: Which of the following is true according to the passage? Yes or no, is the answer "His early stories and plays didn't bring in much money."?
No

Q: Article: Today, many species of animals and plants are endangered. This means they are in danger of becoming extinct and living on only in the pages of history books. The famous dodo is a classic example of a creature that became extinct. A flightless bird that lived on the island of Mauritius, it was discovered by sailors in 1598 but was hunted to extinction by 1681. Hunting has caused the Bengal tiger and the African elephant to be endangered today but habitat destruction can also lead to extinction. This is equally true for plants. Animals and plants disappear for other reasons too, but the main cause is often a disruption(,) in the natural food chain, whether due to hunting, habitat destruction, or even the introduction of alien species. The natural food chain is the cycle that governs the existence of all life on this planet. It is a carefully balanced cycle and any imbalance that occurs can cause knock-on effects that have serious consequences. At the beginning of the natural food chain are plants which turn sunlight into energy and draw nutrients from the earth. Plants are called producers. After the producers come the consumers. There are three tiers of consumers. First are creatures such as plant-eating animals, fish and insects which feed off the producers. These animals that only eat plants are called herbivores. The second tier of consumers are carnivores - animals that live off other animals. The third tier of consumers eats both other animals and plants. These consumers, including most humans, are called omnivores. After animals and plants die, they become food for other smaller creatures, such as bacteria and some plants, such as fungi. As they feed, these creatures turn the dead bodies back into gases and minerals which are again food for the producers at the beginning of the food chain. And so the cycle continues. All of nature is connected and governed by hundreds of these delicate food chains and if a single plant in the chain cannot survive, then the insects that live off the plant start to die and... Question: What is the best title of the passage? Yes or no, is the answer "The link between food chains and extinction."?
A: No

Article: People are always talking about "the problem of youth". If there is one--which I take leave to doubt--then it is older people who create it, not the young themselves. Let us get down to something basic and agree that the young are after all human beings--people just like their elders. There is only one difference between an old man and a young one: the young man has a beautiful future before him and the old one has a splendid future behind him and maybe that is where the _ is. When I was a teenager, I felt that I was just young and unknown--that I was a new boy in a huge school, and I would have been very pleased to be regarded as something so interesting as a problem. For one thing, being a problem gives you a certain identity, and that is one of the things the young are busily engaged in seeking. I find young people exciting. They have an air of freedom, and they have not a dull promise to mean ambitions or love of comfort. They are not anxious social climbers, and they have no devotion to important things. All these seem to me to link them with life, and the origins of things. It is as if they were in some sense from outside space and lovely contrast with us suburban people. All that is in my mind when I meet a young person. He may be ill-mannered, self-confident, but I do not turn for protection to boring cliches about respect for elders as if the age is a reason for respect. I accept that we are equals, and I will argue with him, as an equal, if I think he is wrong. Question: From the text we can see the writer's attitude towards the young is _ . Yes or no, is the answer "considerate and understanding"?
No