Q: Read the article and select the best answer. Article: We take it for granted that with memory we can remember most of things which happened in our life. But it is difficult to imagine what life would be like without memory. The meanings of thousands of everyday perceptions , the basis for the decisions we make, and the roots of our habits and skills are to be found in our past experiences, which are brought into the present by memory. Memory can be defined as the ability to keep information available for later use. It not only includes "remembering" things like arithmetic or historical facts, but also involves any change in the way an animal typically behaves. Memory is involved when a rat gives up eating grain because he has sniffed something suspicious in the grain pile. Memory exists not only in humans and animals but also in some physical objects and machines. Computers, for example, contain devices for storing data for later use. It is interesting to compare the memory storage capacity of a computer with that of a human being. The instant access memory of a large computer may hold up to 100,000 "words"--strings of alphabetic or numerical characters--ready for instant use. An average U.S. teenager probably recognizes the meaning of about 1000,000 words of English. However, this is but a part of the total amount of information that the teenager has stored. Consider, for example, the number of faces and places that the teenager can recognize on sight. The use of words is the basis of the advanced problem solving intelligence of human beings. A large part of a person's memory is in terms of words and combinations of words. But while language greatly expands the number and the kind of things a person can remember, it also requires a huge memory capacity. It may well be this capacity that distinguishes humans, setting them apart from other animals. Question: Human beings make themselves different from other animals by _ . Options: A: having the ability to perceive danger B: having a far greater memory capacity C: having the ability to recognize faces and places on sight D: having the ability to draw on past experiences
A: B

Q: Read the article and select the best answer. Article: Brenda Jensen said the operation was a great success which had saved her life. Thirteen days after the surgery she said her first words, "Good morning, I want to go home." It is the first time a voice box and windpipe have been transplanted at the same time and only the second time a voice box has ever been transplanted. Ms. Jensen, 52, had been unable to speak on her own since her voice box was damaged during surgery in 1999. Since then, she has been unable to taste or smell food, could breathe only through a hole in her windpipe and could talk only with the help of an electronic voice box. In October, surgeons at the University of California Davis Medical Centre removed the voice box and 6cm of the windpipe from a donor body. In an 18-hour operation, this was transplanted into Ms. Jensen's throat and the team connected it to her blood supply and nerves . Professor Martin Birchall from University College London, who was part of the surgery team, said: "We've learned that we can repair nerves to make even very complex organs function again. It'll open the door to better facial transplants and will be extremely important as tissue engineering develops. " A voice box transplant might be life changing, but it is not life saving. Everyone who receives a transplant must take drugs to control the immune system for the rest of their lives. These drugs can reduce life expectancy, so they are normally set aside for life saving procedures. One of the reasons Ms. Jensen was a suitable person for this transplant was that she was already taking immune controlling drugs after a kidney-pancreas transplant four years ago. Professor Peter Belafsky, part of the surgical team, said, "Brenda was an exceptional candidate for the transplant because she was highly motivated. Anyone who's met Brenda knows that she is a strong and determined person with a great outlook on life in spite of the many physical challenges she's faced over her lifetime. Question: Which is the best title for the passage? Options: A: Transplant Saves A Woman's Life B: Overcoming Obstacles to Speak Again C: First Words from New Voice Box D: Courageous Woman Defeating Fears
A: C

Q: Read the article and select the best answer. Article: Children who are raised in households with dogs during their first year of life may have a lower risk of asthma a few years later, a new study suggests. In the study, the researchers looked at early exposure to dogs and farm animals and the rate of asthma among about 276,000 school-age children in Sweden. Among the school-age kids in the study, those who had been exposed to dogs during their first year of life were 13 percent less likely to have asthma at age 6. The researchers said they don't know for sure what exactly may explain the relationship between early exposure to animals and a reduced risk of asthma."It might be due to a single factor, or more likely, a combination of several factors related to a dog ownership lifestyle or dog owners' attitudes, such as kids' exposure to household dirt and pet dust, time spent outdoors or being physically active,"Fall told LiveScience."As a parent in a dog-and-baby household, it is nearly impossible to keep everything clean, and maybe this is a good thing for your baby's future health." Currently, one of the main hypotheses that aim to explain the link between a lower risk of asthma and early exposure to pets is that"kids in animal environments breathe air that contains more bacteria and bacterial fragments, which actually could lower their risk of asthma,"she said. Previous research on having pets and the risk of asthma in kids has mixed results. For example, the results of a 2001 review of previous studies suggested that exposure to pets was linked to an increased risk of asthma in children. But a 2012 review suggested that exposure to pets, especially dogs, was tied to a decreased risk of asthma and allergies in childhood. "My take-home message from this study is that parents at this point do not need to worry about keeping their dog when expecting a baby for fear of asthmatic disease,"Fall said."I do want to be clear that this recommendation is valid only for families without a child already having allergies. If they already have a furred-animal-allergic... Question: According to the passage, the school-age kids exposed to pets . Options: A: will be more caring B: will grow up more happily C: are less likely to have asthma D: are probably behave better in school
A: C