I'm taking a test and have to guess the right answer to the question after the article. Article: Newborns begin to develop language skills long before they begin speaking. And, compared to adults, they develop these skills more quickly. People have a hard time learning new languages as they grow older, but babies have the ability to learn any language easily. For a long time, scientists have tried to explain how such young children can learn the complicated grammatical rules and sounds of a language. Now, researchers are getting a better idea of what's happening in the brains of the tiniest language learners. This new information might help kids with learning problems as well as adults who want to learn new languages. It might even help scientists who are trying to design computers that can communicate like people do. Most babies go "ma ma" by 6 months of age, and most children speak in full sentences by age 3. For many years, scientists have wondered how the brains of young children figure out how to communicate using language. With help from new technologies, scientists are now finding that babies begin life with the ability to learn any language. They get into contact with other people, listen to what they say and watch their movements very closely. That is why they quickly master the languages they hear most often. Studies show that, up to about 6 months of age, babies can recognize all the sounds that make up all the languages in the world. Starting at around 6 months old a baby's brain focuses on the most common sounds it hears. Then, children begin responding only to the sounds of the language they hear the most. In a similar way older babies start recognizing the patterns that make up the rules of their native language. For example, English children who are about 18 months old start to figure out that words ending in "-ing" or "-ed" are usually verbs, and that verbs are action words. Question: The researchers found out that babies learn a language mainly by _ . Options: A: repeating the words of other people B: remembering the full sentences they hear C: hearing and closely watching others speak D: figuring out the meaning of different sounds
C

I'm taking a test and have to guess the right answer to the question after the article. Article: The 48-year-old photographer and adventurer with his trademark black and white beard and shoulder-length hair is also an environmentalist devoted to protecting the source of the Yangtze River.And he likes his new nick-name, "garbage cleaner at the source of the Yangtze River". Yang Xin , is the founder of Green River, one of the country ' s biggest non-govemmental organizationsto protect the country's major rivers. The Yangtze River begins from glaciers in the Tanggula Mountains on the Qinghai-Tibet Plateau. Garbage was rarely seen in the area about 20 years ago, Yang said, as local nomadic people ledtraditional self-sufficient lives, living in tents. Thanks to increasingly convenient transportation, they ' ve started to use modern products packed in plastics, which can ' t degrade naturally. "They don' t have a waste management system and just throw rubbish away like before. So tons of garbage are left on the grasslands and river ways," said Yang. He founded a group with the purpose of dealing with garbage such as plastic bottles, batteries, lunch boxes and so on. In 1997, Yang and his group founded the Sonam Dhargye Nature Preservation Station in the Hoh Xil Nature Reserve, in memory of the anti-hunting hero who sacrificed his life to protect Tibetan antelopes. Question: We can infer from the passage that _ Options: A: .Yang Xin wanted to be well-known as a garbage cleaner B: .Green River is one of the non-polluted rivers in China C: .The local nomadic people use modern products packed in plastics to lead a simple life. D: .Yang and his group help to protect the worsened environment along the Yangtze River
D

I'm taking a test and have to guess the right answer to the question after the article. Article: For anyone still doubting the belief that our emotions impact our physical health, a new study from New Zealand should be able to settle the matter. It reports that the physical wounds of healthy seniors healed more quickly if they wrote about their most upsetting experiences. This confirms the results of a 2010 study, and extends those findings to cover older adults-a group that is likely to suffer wounds (as from surgery), and one with less access to other ways of lowering tension (such as exercise). Reported in the journal Psychosomatic Medicine, a research team led by the University of Auckland's Elizabeth Broadbent made a study featuring 50 healthy adults ranging in age from 64 to 97. They were assigned to write for 20 minutes per day for three consecutive days. Half were asked to write about the most upsetting experience in their life, describing their deepest thoughts, feelings, and emotions about the events, ideally not previously shared with others. The others were asked to write about their daily activities without mentioning emotions, opinions or beliefs. Two weeks after the third day of writing, all participants received a standard 4mm skin biopsy on their inner arm. The very tiny wounds caused by the biopsy were photographed regularly over the following days to determine the rate at which they healed. On the 11th day after the biopsy, the wounds completely healed on 76.2 percent of those who had done the expressive writing. That was true of only 42.1 percent of those who had written about everyday activities. "The biological and psychological mechanisms behind this effect remain unclear," the researchers wrote, noting that those who had done the expressive writing did not report lower stress levels or fewer depressive symptoms than the others in the control group. Even if they weren't consciously aware of feeling more relaxed or positive, the expressive writing appeared to have caused some sort of bodily reaction-probably involving their immune systems-that hastened their recovery. Question: What was the difference between the two groups of participants in the study? Options: A: When they wrote. B: Where they wrote. C: What they wrote about. D: How often they wrote.
C