Read the following article and select the best answer. Article: Sleeping for less than six hours a night greatly increases the risk of dying from a heart attack or stroke , a study has found. It is the stuff of nightmares for those whose busy work schedule or busy family life means getting up early and staying up late. Scientists claim that the modern tendency to delay going to bed in order to get through more of the items on the 'to do' list has serious health consequences. But take care. Those who have too much sleep are also more likely to suffer a heart attack. While the extra sleeping is unlikely to be the cause, long-term illnesses such as heart disease often make sufferers feel tired, so sleeping for longer than nine hours a night may be an early warning sign. Researchers found that those who slept for less than six hours were almost 50 per cent more likely to suffer a heart attack and 15 per cent more at risk of strokes. They believe that not having enough sleep disrupts the balance of two key hormones , ghrelin and leptin , which control the appetite. Poor sleepers tend to eat more and are more likely to be fatter, so are at greater risk of high blood pressure and heart disease, which lead to heart attacks and strokes. Experts recommend adults get at least six or seven hours' shut-eye a night to stay healthy. But as many as 60 per cent of us do not think we are sleeping enough, with a third suffering from sleeplessness. The researchers, from the University of Warwick, warned that trying to push too much into one day by going to bed late and getting up early could lead to serious illnesses later in life. They looked at the sleeping habits of almost 475,000 participants from 15 previous studies across eight countries, including the UK, the U.S., Japan, Sweden and Germany. Their findings, published in the European Heart Journal, show that those who slept for less than six hours were 48 per cent more likely to develop or die from heart disease and 15 per cent more likely to develop or die from a stroke. Not having enough sleep decreases the levels of leptin in... Question: What's the main idea of the passage? - Lack of sleep raises your risk of stroke or heart disease. - It raises the levels of ghrelin, thus making us feel hungrier. - Sleeping for longer than nine hours a night may be an early warning sign. - The scientists believe that our 'work hard, play hard' society encourages us to sacrifice sleep and ignore our health.
Lack of sleep raises your risk of stroke or heart disease.

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Read the following article and select the best answer. Article: The First Day at My Senior High School Today is September1,2012.It is the first day of my senior high school.Everything in the school is new to me. The school is very modern. The gate of the school is artistic . When you go through the main gate,you can see a high stadium on the left side of the road, which has a 400-meter runaway and a soccer field with green grass. Buildings are tall and beautiful. The library is the most attractive building on the right side of the main road. There are many green trees and colorful flowers on both sides of the roads. The classrooms are amazing. They are big, clean and bright. In each classroom, there is a computer and a big screen,through which our teachers can show us tests,photos, and so on. In my class, there are 60 students. We don't know each other, but we are all friendly.Everyone has a smile on his/her face. When we meet, we always say "Hello"to each other. Most of our teachers are young. Some students think young teachers cannot teach well, but I do not think so. In my opinion,young teachers are very energetic and easy to make friends with. What's more, they may have a lot of new teaching methods. I love my new school very much. I hope, in my new school, I can learn more from my teachers and make progress together with my classmates. Question: The writer thinks differently from other students about _ in the school. - teaching methods - classes - young teachers - buildings
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young teachers

Question: Read the following article and select the best answer. Article: Do you suffer from cybersickness? The rise of mobile phones has been blamed for a number of social ills, but your smart phone may also be making you physically sick as well. Scientists have identified a condition called "cybersickness", which they say is the digital version of motion sickness. The phenomenon, which affects up to 80 percent of the population who own smart phones or tablets, leads to feelings of sickness and unsteadiness. It is caused by seeing fast motion on a screen, which covers anything from a car chase in a film to scrolling through web pages on your phone. The more realistic the visual content appears to you, the higher your chances of getting cybersickness are . The condition was identified in a piece in the New York Times in which British and US experts said that it needed solving. Motion sickness leaves sufferers feeling ill because they feel movement in your muscles and your inner ear but do not see it. The mismatch in digital sickness is the opposite--you see movement on the screen but do not feel it. The effect is the same and the symptoms include a headache, wanting to throw up, confusion and the need to sit down. Often cybersickness shows itself in a subtle way and sufferers put it down to stress or eyestrain. Steven Rauch, a professor of otolaryngology at Harvard Medical School, said: "Your sense of balance is different from other senses in that it has lots of inputs. When those inputs don't agree, that's when you feel dizziness and sickness. " Some studies that have been carried out into cybersickness found that women are more _ than men, the New York Times reported. Those who have Type A' personalities--meaning they are confident and determined--are more likely to suffer from cybersickness as well. Among those who have reported experiencing the condition have been video gamers who spend hours playing fast paced games. Engineers at Oculus VR, the virtual headset manufacturer, have admitted that digital motion sickness is one of their biggest problems. Question: This passage is most probably _ . - a science fiction - a newspaper ad - a book review - a science news report
Answer:
a science news report