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Read the following article and select the best answer. Article: The journey to the moon had been the first step toward future exploration in space. The distance between the Moon and Earth is very short indeed when compared with the distances between Earth and the other planets. Mars, the nearest planet to Earth is millions of miles away. Traveling to the planets will be man's next aim. Such travels will be more challenging than the trip to the moon and certainly more adventurous. Recently, two American spaceships, Vikings 1 and 2, landed on Mars trying to discover whether that planet has any life on it. So far the signs of life on Mars has neither confirmed nor ruled out. Russians have discovered that the surface of Venus is so hot that it is almost certain that there is no life there. Also the atmosphere of Venus is extremely dense and the pressure is nearly a hundred times greater than that of the Earth's atmosphere. Scientists believe man may find planets which have the same conditions as those we have on Earth , but man should realize Earth will be his only home for a long time and begin to love and care for it. (www.ks5u.com) Question: According to the passage, traveling to the planets will be _ . - much easier and even more interesting - far more exciting and dangerous - man's final aim - man's first step
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far more exciting and dangerous

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Read the following article and select the best answer. Article: I have been consistently opposed to feeding a baby regularly. As a doctor, mother and scientist in child development, I believe there is nothing to recommend it, from the baby's point of view. Mothers, doctors and nurse alike have no idea of where a baby's blood sugar level lies. All we know is that a low level is harmful to brain development and makes a baby easily annoyed. In this state, the baby is difficult to calm down and sleep is impossible. The baby asks for attention by crying and searching for food with its mouth. It is not just unkind but also dangerous to say a four-hourly feeding schedule will make a baby satisfied. The first of the experts to advocate a strict clock-watching schedule was Dr Frederic Truby King who was against feeding in the night. I've never heard anything so ridiculous. Baby feeding shouldn't follow a timetable set by the mum. What is important is feeding a baby in the best way, though it may cause some inconvenience in the first few weeks. Well, at last we have _ research that supports demand feeding and points out the weaknesses of strictly timed feeding. The research finds out that babies who are fed on demand do better at school at age 5, 7, 11 and 14, than babies fed according to the clock. By the age of 8, their IQ scores are four to five percent higher than babies fed by a rigid timetable. This research comes from Oxford and Essex University using a sample of 10,419 children born in the early 1990s, taking account of parental education, family income, a child's sex and age, the mother's health and feeding style. These results don't surprise me. Feeding according to schedule runs the risk of harming the rapidly growing brain by taking no account of sinking blood sugar levels. I hope this research will put an end to advocating strictly timed baby feeding practices. Question: What does the author think about Dr King? - He is strict - He is unkind - He has the wrong idea. - He sets a timetable for mothers
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He has the wrong idea.

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Read the following article and select the best answer. Article: Scientists believe that one of our most important means of knowing what is going on around us is the sense of sound. We are warned of danger by sounds. Sounds serve to please us in music. Sound has a waste product, too, in the form of noise. Noise has been called unwanted sound. Noise is growing and it may get much worse before it gets any better. In order to know how noise affects people and animals, scientists have been studying for several years. They are surprised by what they have learned. Peace and quiet are becoming harder to find. Noise pollution is a threat that should be looked at carefully. Sounds is measured in units called decibels . At a level of 140 decibels people feel pain in their ears. Trucks , buses , motorcycles, airplanes, boats, factories---all these things make noise. They trouble not only our ears, but minds and bodies as well. There is a saying that it is so noisy that you can't hear yourself think. Doctors who study noise believe that we must sometimes hear ourselves think. If we don't, we may have headaches, other aches and pains, or even worse mental problems. Noise adds more tension to a society that has already faced enough stress. Question: The sense of sound _ . - makes us feel excited - helps us hear more clearly - is something harmful to us - helps to know what is happening around us
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helps to know what is happening around us