Read the article and select the best answer. Article: Motherhood may make women smarter and may help prevent dementia in old age by bathing the brain in protective hormones ,US researchers reported on Thursday. Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer's . University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans. "Our research shows that the hormones of pregnancy are protecting the brain, including estrogen , which we know has many neuroprotective effects," Kinsley said. "It's rat data but humans are mammals just like these animals are mammals," he added in a telephone interview. "They go through pregnancy and hormonal changes." Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer's and other forms of age related brain decline. "When people think about pregnancy, they think about what happens to babies and the mother from neck down," said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida. "They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant--that is a great change in her behavior that showed in genetic alternations to the brain." Question: How do scientists know that motherhood may make women smarter? Options: A: Many women say so. B: They know it by experimenting on rats. C: They know it through their own experience. D: Some researchers have told them.
B

Read the article and select the best answer. Article: I decided to go back to school in the fall of 2010 for not being happy with my current job and financial status. I got my Associate in May 2002 in commercial art. After graduation, I had trouble getting a job in that field. For years, I was going from one job to another, and I was not satisfied with unstableness . I decided to go back to school to study either international business or psychology . I weighed the _ of both professions and psychology won. I like helping my friends and family. When they are faced with hard situations in their life, I'd like to give them sound advice and be honest with them. Also, I was interested in the "mind". I searched for online schools because my work schedule would not allow me to study in a classroom. I was nervous about taking online classes because I had heard mixed stories from my friends who were taking online classes. I decided to do it anyway to experience something different. I wanted to find an online school that was affordable and believable. While I was doing the online search, I discovered Walden University, which is specially for working adults who want to have a bachelor's degree or higher. The process of getting accepted was easy, i.e. writing an essay on why I wanted to attend their school, sending my previous credits , etc. I am currently enrolled in the bachelor's program for psychology, and I am paying for college via financial-aid loans . This experience has been interesting and yet upsetting as sometimes it was difficult to balance work, school and home life. I have learned a lot about psychology and myself. For example, I like writing about current events, relationships and traveling. I thought my English composition was ordinary, but after taking a few classes at Walden University, I have improved my English composition and it has made me feel confident enough to start writing professionally. Now I am a freelancer and I am only three classes away from getting my bachelor's degree in psychology. It is one of the best decisions I have made in my life. Question: We can know from the passage that the author _ . Options: A: was unable to find a full-time job B: is most interested in psychology C: prefers to make a living by writing D: paid his schooling by working hard
C

Read the article and select the best answer. Article: The iPhone, the iPad, each of Apple's products sounds cool and has become a fashion. Apple has cleverly taken advantage of the power of the letter "i" -- and many other brands are following suit. The BBC's iPlayer -- which allows Web users to watch TV programs on the Internet -- adopted the title in 2008. A lovely bear -- popular in the US and UK -- that plays music and video is called "iTeddy". A slimmed-down version of London's Independent newspaper was launched last week under the name "i". In general, single-letter prefixes have been popular since the 1990s, when terms such as e-mail and e-commerce first came into use. Most "i" products are targeted at young people and considering the major readers of Independent's "i", it's no surprise that they've selected this fashionable name. But it's hard to see what's so special about the letter "i". Why not use "a", "b", or "c" instead? According to Tony Thorne, head of the Language Center at King's College, London, "i" works because its meaning has become ambiguous. When Apple uses "i", no one knows whether it means Internet, information, individual or interactive, Thorne told BBC Magazines. "Even when Apple created the iPod, it seems it didn't have one clear definition," he says. "However, thanks to Apple, the term is now associated with portability ."adds Thorne. Clearly the letter "i" also agrees with the idea that the Western World is centered on the individual. Each person believes they have their own needs, and we love personalized products for this reason. Along with "Google" and "blog", readers of BBC Magazines voted "i" as one of the top 20 words that have come to define the last decade. But as history shows, people grow tired of fads . From the 1900s to 1990s, products with "2000" in their names became fashionable as the year was associated with all things advanced and modern. However, as we entered the new century, the trend eventually disappeared. Question: The writer suggests that _ . Options: A: the popularity of "i" products may not last long B: "i" products are often of high quality C: iTeddy is a live bear popular in the US and UK D: the letter "b" replaces letter "i" to name the products
A

Read the article and select the best answer. Article: When newspapers and radio describe the damage caused by a hurricane named Hazel, girls named Hazel are probably teased by their friends. To keep out of trouble, the Weather Bureau says,"Any _ between hurricane names and the names of particular girls is purely accidental." Some women became angry because hurricanes are given their names, but many other women are proud to see their names make headlines. They don't even care that they are the names of destructive storms. Because more women seem to like it than dislike it, the Weather Bureau has decided to continue using girl's names for hurricanes. In some ways a hurricane is like a person. After it is born, it grows and develops, then becomes old and dies. Each hurricane has a character of its own. Each follows its own path through the world, and people remember it long after it gone. So it is natural to give hurricanes' names, and to talk about them almost if they were alive. Question: What happens to girls named Hazel according to the passage? Options: A: They suffer from hurricanes. B: The Weather Bureau look for them. C: Others often make fun of them. D: They can't find boyfriend.
C