Read the article and select the best answer. Article: Pessimistic,anxious and depressed people may have a higher risk of dementia ,US researchers reported on Thursday. A study of a group of 3,500 people showed that those who scored high for pessimism on a standardized personality test had a 30 percent increased risk of developing dementia 30 to 40 years later. Those scoring very high on both anxiety and pessimism scales had a 40 percent higher risk,the study showed. "There appears to be a doseresponse pattern.That is,the higher the scores,the higher the risk of dementia,"Dr Yonas Geda,a neuropsychiatrist at the Mayo Clinic in Rochester,Minnesota who led the study,said in a statement. Geda and his colleagues looked at the medical records of 3,500 men and women who lived near the clinic between 1962 and 1965. They all took the Minnesota Multiphasic Personality Inventory,a standard personality and life experience test,Geda's team told a meeting of the American Academy of Neurology in Miami. In 2004,the team interviewed the participants or family members. Those who scored higher for anxiety and pessimism on the test were more likely,as a group,to have developed dementia by 2004,including Alzheimer's disease and vascular dementia. This did not mean a person who is pessimistic could assume he or she has a higher risk of developing dementia. "One has to be cautious in interpreting a study like this,"Geda said. "One cannot make a leap from group level data to the individual.Certainly the last thing you want to do is to say,'Well,I am a pessimist;thus,I am doomed to develop dementia 20 or 30 years later,'because this may end up becoming a selffulfilling prophecy ." And there is NOT any specific way to prevent dementia,although many studies have shown that a healthy diet,exercise,keeping active in other ways,doing puzzles and other activities lower the risk. Question: What is the passage mainly about? Options: A: It is impossible for people to avoid dementia. B: People who always have negative feelings may have a higher risk of getting dementia. C: If we have a healthy diet,we would have no chance of getting dementia. D: A person who is pessimistic has a higher risk of developing dementia.
B

Read the article and select the best answer. Article: On March 28th, the New York Times will begin charging all but the most infrequent users to read articles online. In a letter to readers, Arthur Sulzberger, Jr., the publisher of the paper, laid out the details of the paywall, which he said will go into effect immediately in Canada and on March 28th for the rest of the world. He called the move "an important step that we hope you will see as an investment in the Times, one that will strengthen our ability to provide high-quality journalism to readers around the world and on any platform." Sulzberger said that readers will be able to read 20 articles per month at no charge. Once they click on the 21st piece, however, they'll be presented with three payment options: $ 15 for four weeks of online and mobile application access, $ 20 for access to the site and the iPad application, or $ 35 for access to everything. People who already receive the printed paper through home delivery will enjoy free and unlimited access to the Times on all platforms. These details largely agree with earlier reports on how the paywall would work. The Times had made it clear that it did not want to imitate the total paywalls put into effect by papers such as The Times of London and Newsday, which block access to all contents unless the reader pays. The paper also signaled that it wants to stay relevant in the social media world. According to Sulzberger's announcement, people who come to the Times site from Facebook, Twitter or from blogs will be able to read those articles even if they have gone over their monthly limit. However, Sulzberger said that a limit will be placed on "some search engines", meaning that after readers have accessed a certain number of articles from search engines, any further articles they access from there will be added to their monthly count. It was reported that the only search engine that will be affected this way is Google, where there will be a five-article limit. This marks a clear attempt by the Times to close what could be a giant loophole , since so... Question: What challenge may the paywall bring to the New York Times? Options: A: It may bring the Times more competition with the other media B: It may stop the Times connecting to the global network C: It may block the readers from the other websites D: It may result in huge drops in papers' online readership
D

Read the article and select the best answer. Article: A child, who has once got interested in a tale, likes, as a rule, to have it retold in almost the same words, but this should not lead parents to treat printed fairy stories as formal texts. It is always much better to "tell" a story than just "read" it out of a book, and, if a parent can produce his own as an improvement on the printed text, according to his child's actual situation, so much the better. There is a charge made against some fairy tales, as they probably harm children by frightening them or leaving them sad feelings. To prove it, an experiment has been done to show that children who have heard terrible fairy stories often feel more uneasy than those who have not. As for fears, there are some cases where children get timid by some fairy story. Often, however, this arises from the child having heard the story once. Familiarity with the story by repetition may weaken the pain of fear. There are also people who object to fairy stories on the grounds that the stories are not objectively true, and that those giants, witches, two-headed dragons, magic carpets etc. do not really exist, so children should be taught to learn the reality by studying history, instead of being got fond of the strange side in fairy tales. Those, who prefer to create such stories, are so peculiar that it is hard to argue with them. If their creative exaggeration were _ , the world should be full of mad men attempting to fly from New York to Philadelphia on a stick or covering a telephone with kisses in the belief that it was their beloved girl-friend. Not once is a fairy story ever declared to be a description of the real world, but not every child is clever enough to be aware of it. Parents should choose their children's "bed-time" reading materials with much care. Only the fairy stories containing positive effect will make a clever and caring child with rich imagination. Question: It makes sense that parents choose fairy stories with _ as "bed-time" reading materials.. Options: A: formal printings B: creative scenes C: positive effect D: terrible characters
C