Read the following article and select the best answer. Article: Faces that activate the same regions of the brain again and again are more likely to be remtembered. Practice makes perfect when it comes to remembering things, but exactly how that works has long been a mystery. A study published in Science recently indicates that reactivating neural patterns over and over again my store items into the memory. People find it easier to recall things if material is presented repeatedly at well-spaced intervals rather than all at once. For example, you're more likely to remember a face that your've seen on some occasions over a few days than one that you've seen once in one long period. One reason that a face linked to many different contexts -such as school, work and home- is easier to recognize than one that is associated with just one setting, such as a party, could be that there are some ways to access the memory. This idea, called the encoding variability hypothesis ,was proposed by psychologists about 40 years ago. Each different context or setting activates a clear set of brain regions; the hypothesis suggests that it is these differing neural responses that improve the memory. But neuroimaging research led by Russell Poldrack, a scientist at the University of Texas. Austin, now suggests that the opposite is true--items are better remembered when they activate the same neural patterns with each exposure. Poldrack's team measured brain activity in 24 people using functional magnetic resonance imaging. The subjects saw 120 unfamiliar faces, and each one repeated four times at varying intervals during the scan. One hour later, they were shown the faces again, mixed with 120 new ones, and asked to rate the familiarity of each. The researchers then looked at the brain responses that had been recorded when the subjects wee first shown the faces, focusing on 20 brain regions associated with visual perception and memory. Face that were later recognized evoked similar activation patterns at each repetition in nine of the regions, particularly those associated... Question: The passage is mainly about _ . - how the brain works - why some memories fade away - the encoding variability hypothesis - the neuroimaging research
the neuroimaging research

(Question)
Read the following article and select the best answer. Article: "If you want to see something well, reach out and touch it!" That may seem a strange thing to say.But touching things can help you to see them better. Your eyes can tell you that a glass ball is round.But by holding it in your hands, you can feel how smooth and cool the ball is.You can feel how heavy the glass is.When you feel all these about the ball, you really see it. With your skin, you can feel better.For example, your fingers can tell the difference between two coins in your pockets.You can feel a little drop of water on the back of your hand, too. You can even feel sounds against your skin.Have you ever wanted to know why some people like very loud music? They must like to feel the sounds of music. All children soon learn what "Don't touch!" means.They hear it often.Yet most of us keep on touching things as we grow up.In shops, we often have to touch things before we buy them. The bottoms of our feet can feel things, too.You know this when you walk on warm sand, cool grass or a hard floor.All feel different under your feet. There are ways of learning to see well by feeling.One way is to close your eyes and try to feel everything that is touching your skin.Feel the shoes on your feet, the clothes on your body, the air on your skin...... Most museums are just for looking.But today some museums have some things to touch.Their signs say, "Do touch!" There you can feel everything on show. Question: By touching things, _ . - you will have a strange feeling - you will learn how to reach out - you can see things better - you can tell what colors they are
(Answer)
you can see things better

Ques: Read the following article and select the best answer. Article: Let's face the facts. On most occasions, some things may seem impossible, but in every impossibility, there is possibility. Impossible situations don't last forever. While it might be impossible for one, it could still be possible for another. In a word, everything is possible. Someone once said, "Success belongs to those who can look at challenges offered by the world as an inspiration." So your challenges are golden opportunities for success. How can there be wonders if there are no difficulties? You need challenges to show your ability and success comes from the problems you face. Those who refuse to give in come out smiling. Robert X. Perez once said, "The seeds of success spring from failure's ashes; failure is not defeat and it just directs you in the right direction. To fail is to understand what you should not do. Remember it and don't give up until your goal is achieved." What should you do when you face difficulties? Jasbeen says, "Yeah, life is difficult, but you shouldn't give up. You should have a positive and calm attitude towards all your difficulties and make the best of them. You may learn something new. You can accept failure and develop mental toughness. Mental toughness is to see the long-term pains rather than be put off by short-term pains. Once you have this toughness, you have an advantage of winning." The only thing in life you ever really regret is the chances you didn't take. You will only regret when you are faced with the consequences of not taking chances and seizing the moment. Take every chance you can! Everything you've done in life may be good or bad, but no matter what you may do, you must try your best. You must do something meaningful and do it right now. Question: The passage is mainly about _ . - how to face challenges - how to be successful - how to hold the hold the chances in life - how to turn impossibilities into possibilities
Ans: how to be successful

Ques:Read the following article and select the best answer. Article: Monday - 9:00 p.m. PT (11:00 p.m. CT) (Midnight ET) I love to answer questions about children's health. Some questions and their answers become articles, FAQ's, Updates, Fast Facts, Top Tips, or Guidelines here on the site. I answer others in real time during chat. Either way, here is how to submit a question - I am available live, for one hour, every weekday. No appointments are necessary! All you have to do is log on to Chat and ask your question. In most cases, you'll get your answer right there! Some of the questions from chat are selected for me to write about in greater depth. Even if you don't have time to stay at chat, come for a moment, and send your question to the chat host to be considered for a future article. Please join me in chat, Monday - November 22, 2004 at 9:00 p.m. PT(11:00 p.m. CT) (Midnight ET) I will be in the chat room for one hour to answer your children's health questions. To ask your question please type a " ?" mark on the screen A host will call upon you when it is your turn to ask a question. Click here to chat Click here to learn more about chat Click here for a complete chat schedule Question: If you want to have a talk , you have to _ . - keep right to talk - write a letter to the author before hand - be on the line - make an appointment

Ans:
be on the line