Read the following article and select the best answer. Article: More and more people are taking their iPads to bed with them to surf the web, check facebook or send e-mails before switching off the light. But researchers are warning that the blue light their screens give off can stop users getting a good night's sleep. That is because this type of light is similar to daylight, convincing the brain that it is still daytime. Blue light prevents the production of a brain chemical called melatonin, which helps us fall asleep. By contrast, light which is more orange or red does not prevent melatonin production, perhaps because our brains recognize it as a cue that the day ends. Scientists have known for years that staring at screens late in the evening can affect sleep ---- they are television screens, computer screens or mobile phone screens. However, because mobiles and iPads are by nature portable ---- not to say addictive ---- more people are taking them into the bedroom. Users also tend to hold them much closer to their eyes than a computer or television screen. Researchers are warning that looking at iPad displays for more than two hours leads to lower natural melatonin levels as the devices give off blue light. They say, "Turning off the devices at night is the final solution. But if you have to use these devices at night, dim the display to cut down irritation of the eyes and limit the time you spend on them before bed." They wrote in the journal Applied Ergonomics that iPad makers should adjust the spectral power distribution of the devices so that they affect the sleep patterns of users less. It is not just a good night's sleep that could be harmed by too much late night screen time. Researchers know that long-term harm to sleep patterns can lead to an increased risk of obesity and even cancers. Question: What's the main idea of the passage? - Scientists are warning that blue light is bad for our health. - People should limit the use of electronic devices - Using iPads before bed can cause a poor night's sleep. - Looking at screens of iPads increase chances of sleeplessness.
Using iPads before bed can cause a poor night's sleep.

Read the following article and select the best answer. Article: Living near the beach may come with an extra perk : better health. A new study analyzed information from more than 48 million people in England and found that the nearer they lived to the coast, the more likely people were to report good health within the past year. Living near the coast may be associated with better health because the seaside environment reduces stress, the researchers said. They pointed to another British study that found that people who took trips to the coast experienced more feelings of calmness and relaxation than those who visited urban parks or the countryside. The difference from living near the coast was relatively small. But a small effect, when applied to an entire population, can have a substantial impact on public health, said study researcher Ben Wheeler of Peninsula College of Medicine and Dentistry in Exeter, England. However, it's too soon to advise people to hit the beach to improve health, Wheeler said. The study only found an association, not a cause-effect link, and it's possible that other factors could explain the results. For instance, it could be that people who are wealthier, and therefore healthier, are more able to move to desired locations such as the coast, Wheeler said, a phenomenon known as the migrant effect. But the study did find that the association between coastal living and better health was strongest for those living in the poorest areas, which perhaps indicates that wealth cannot explain the results, Wheeler said. Because the study looked at only England--an island country in which everyone lives within 72 miles of the coast--it's not clear whether the findings would apply to other populations. Far from England, a health expert not involved in the study said that while the British research certainly doesn't prove that people's health and the place they live are linked, it's possible that _ to the seas does something for our bodies. If future studies confirm the results, the next step would be to find out it is what coastal environments that can... Question: According to the researchers, living near the sea _ . - doesn't nearly affect the British population - can cure some difficult diseases in a way - can help get over one's stress - means freeing from sadness or troubles
can help get over one's stress

Read the following article and select the best answer. Article: Why are so many people so afraid of failure? Quite simply because no one tells us how to fail so that failure becomes an experience that will lead to growth. We forget that failure is part of the human condition and that every person has the right to fail. Most parents work hard at either preventing failure or protecting their children from the knowledge that they have failed. One way is to lower standards. A mother describes her child's hurriedly-made table as "perfect"! Even though it couldn't stand on uneven (not same in height) legs. Another way is to shift blame. If John fails in science, his teacher is unfair or stupid. The trouble with failure-prevention methods is that they leave a child unequipped for life in the real world. The young need to learn that no one can be best at everything, that no one can win all the time and that it's possible to enjoy a game even when you don't win. A child who's not invited to a birthday party, who doesn't make the honor roll or the baseball team feel terrible, of course. But parents should not offer a quick comfort prize or say "It doesn't matter" because it does. The young should be allowed to experience disappointment and be helped to master it. Failure is never pleasurable. It hurts grown-ups and children exactly alike. But it can make a positive contribution to your life once you learn to use it. Step one is to ask "Why did I fail?" Control the natural impulse to blame someone else. Ask yourself what you did wrong, and how you can improve. If someone else can help, don't be shy about asking them. Question: By "protecting their children from the knowledge that they have failed", the writer means that most parents try their best _ . - to let their children know that they won't fail - to teach their children about knowledge of failure - to provide their children with the knowledge against failure - to keep their children from realizing that they failed
to keep their children from realizing that they failed