Read the article and select the best answer. Article: Music lessons may improve memory and learning ability in your children by promoting different patterns of brain development, a study shows. After a year of musical training, children aged between 4 and 6 performed better at a standard memory test than did children who were not taught music.The findings suggest that music could be useful for building the learning capacity of your minds. Earlier studies have shown that older children given music lessons become better at IQ tests than those who are musically untrained, but this is the first to show such a benefit in children so young. Professor Laurek Trainor, of McMaster University in Hamilton, Ontario, also found clear differences in the ways in which children's brains responded to sound after a year of musical training.'This is the first study to show that brain responses in young, musically trained and untrained children change differently over the course of a year," she said."These changes are likely to be related to the cognitive( )benefit that is seen with musical training." Professor Trainer's team looked at 12 children, 6 of whom had just started extra-curricular music lessons and 6 of whom were not being taught any music except that included as a standard part of their school curriculum . During the year all 12 children had their brains examined four times using magneto-encephalography (MEG), and each child was played two types of sound --white noise and a violin tone.The MEG measurements showed that all children responded more to violin sounds than to white noise, reflecting a preferable for meaningful tones, and their response times fell over the course of the year as their brains matured. Question: This passage is mainly about _ . Options: A: why music lessons are good for the memory B: the benefit from extra-curricular training for younger children C: a study on twelve young children's brains D: new technology to examine children's brains
A

Read the article and select the best answer. Article: How Does Your Body Keep the Same Temperature? The temperature of your body should always be the same if you are fine, no matter whether the weather is hot or cold. That is why the doctor tests your temperature with a thermometer when you are sick. Normally, your body temperature is ninety-eight point six degrees Fahrenheit . If it is higher than that, it is a sure sign that something is wrong with your body. Your body keeps the same temperature all the time, because it balances the heat it produces and the heat it gives off. It is always burning up food and producing heat. It can produce heat faster when the body needs or give off heat faster when the body becomes too warm. Let's see how this works. The heat of your body is given off chiefly through the skin. When you feel cold, your skin is tight and shows "goose flesh". When you feel chilly , you must jump around to keep warm. Then your muscles begin to work, burn up fuel and produce more heat. It is not pleasant to shiver so you usually prefer warming up by taking exercise, or put on more clothes to keep warm. When you get warm, the skin is loose and soft. It is so supplied with blood that heat is given off rapidly. If you get too warm, you begin to sweat and more body heat is used in evaporating the moisture in your body. In warm weather or warm rooms, you wear less clothing, so that heat can be given off freely. You prefer less exercise because your body is warm enough, and the extra heat produced by taking too much exercise makes you uncomfortable. Now you see why you feel differently in different kinds of weather. In summer, when it is hot, you feel tired and lazy. You do not care to work or play, but enjoy lying down and doing nothing. When you get out of doors in winter, the cold air makes you feel lively. You want to run and play. Question: Why does the doctor take a person's temperature when he gets sick? Options: A: Because his temperature is a sign which can show whether he is sick or not. B: Because his temperature is always the same, no matter whether he is sick or not. C: Because when he is ill, his temperature is sure to be higher than normal. D: Because his temperature will be sure to change if something is wrong with him.
A

Q: Read the article and select the best answer. Article: If humans were truly at home under the light of the moon and stars,we would go in darkness happily,the midnight world as visible to us as it is to the vast number of nocturnal species on this planet. Instead,we are diurnal creatures, with eyes adapted to living in the sun's light. This is a basic evolutionary fact, even though most of us don't think of ourselves as diurnal beings. Yet it's the only way to explain what we've done to the night: We've engineered it to receive us by filling _ with light. The benefits of this kind of engineering come with consequences called light pollution whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design,which allows artificial light to shine outward and upward into the sky. III-designed lighting washes out the darkness of night and completely changes the light levels and light rhythms -- to which many forms of life, including, ourselves, have adapted. Wherever human light spills into the natural world, some aspect or life is affected . In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze that mirrors our fear of the dark. We've grown so used to this orange haze that the original glory of an unlit nigh, - dark enough for the planet Venus to throw shadow on Earth, is wholly beyond our experience, beyond memory almost. We've lit up the night as if it were an unoccupied country, when nothing could be further form the truth. Among mammals alone, the number of nocturnal species is astonishing, Light is a powerful biological force, and on many species it acts as a magnet . The effect is so powerful that scientists speak of songbirds and seabirds being "captured" by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings. Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times righter than normal, throwing nearly every... Question: What might be the best title for the passage? Options: A: The Magic light. B: The Orange Haze. C: The Disappearing Night. D: The Rhythms of Nature.
A: C