Read the article and select the best answer. Article: If you want to keep healthy, you should have good habits. What is a habit? It is something we do very often. We don't even think when we do it. It has become a part of our lives. "Early to bed, early to rise makes a man healthy, wealthy and wise." This is an old English saying. Do you know what it means? It means that we must go to bed early at night and get up early in the morning. If we do, we shall be healthy, rich and clever. Is this true? Perhaps it is. We know the body must have enough sleep. Boys and girls need eight or nine hours' sleep every day. Some people go to bed late at night and get up late in the morning. This is a very bad habit. Then you will not think or do your work well. Of course, you can't be healthy, wealthy or wise. When we get up early in the morning, we can go out and do morning exercises. Exercise means doing things with the body. Walking, running jumping, swimming, and playing ball games are all exercise. If we don't exercise, our body will become weak. Exercise helps the blood to move around inside our body. Blood takes food to all parts of our body. Our body also needs air to breathe. Without air, we will die. We must have lots of clean fresh air if we want to be healthy. That is why many people like to go out to do morning exercise. Question: How long should young boys and girls need to sleep a day? Options: A: More than ten hours B: Over eleven hours. C: Less than seven hours. D: Eight hours or so.
D

Read the article and select the best answer. Article: By the mid-nineteenth century, the term "icebox" had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew with the growth of cities. Ice was used in hotels, taverns , and hospitals, and by some forward-looking city dealers in fresh meat, fresh fish, and butter. After the Civil War (1861-1865), as ice was used to refrigerate freight cars, it also came into household use. Even before 1880, half of the ice sold in New York, Philadelphia, and Baltimore, and one-third of that sold in Boston and Chicago, went to families for their own use. This had become possible because a new household convenience, the icebox, a precursor of the modern fridge, had been invented. Making an efficient icebox as not as easy as we might now suppose. In the early nineteenth century, the knowledge of the physics of heat, which was essential to a science of refrigeration, was rudimentary . The commonsense notion that the best icebox was one that prevented the ice from melting was of course mistaken, for it was the melting of the ice that performed the cooling. Nevertheless, early efforts to economize ice included wrapping up the ice in blankets, which kept the ice from doing its job. Not until near the end of the nineteenth century did inventors achieve the delicate balance of insulation and circulation needed for an efficient icebox. But as early as 1803, and ingenious Maryland farmer, Thomas Moore, had been on the right track. He owned a farm about twenty miles outside the city of Washington, for which the village of Georgetown was the market center. When he used an icebox of his own design to transport his butter to market, he found that customers would pass up the rapidly melting stuff in the tubs of his competitors to pay a premium price for his butter, still fresh and hard in neat, one-pound bricks. One advantage of his icebox, Moore explained, was that farmers would no longer have to travel to market at night in order to keep their produce cool. Question: Without an ice box, farmers had to go to the market at night _ . Options: A: to sell their produce at high price B: to go home earlier C: to keep their produce fresh D: to win more customers than their competitors
C

Q: Read the article and select the best answer. Article: One day I took several pairs of shoes to the shoemaker to be mended. After a week I went to take them back. Four months later, my husband and I were invited to dinner. I took out a pair of shoes. I hadn't worn them since they were mended. I put one shoe on my right foot, and then I put the other on my left. But I felt that the other one was on the wrong foot. I took both shoes off for a closer look. They were nearly the same style , color and size, but each was for the right foot. Then I thought of the shoemaker. Though I was sure he wouldn't remember me after such a long time, I called him. "Thank goodness you called me at last!" He said happily. "An angry woman has been troubling me for months!" Question: The shoemaker _ . Options: A: was very careful with his work B: mistook one of the woman' s shoes for the other woman' s C: forgot the woman because it happened a long time ago D: was troubled by two men
A: B

Q: Read the article and select the best answer. Article: Humans: It's time to abandon the earth or face extinction. This prediction isn't science fiction. It's a glimpse of the future, according to famed British scientist Stephen Hawking. "I see great dangers for the human race," he said in an interview with global forum Big Think. "There have been a number of times in the past when its survival has been a question of touch and go ." Hawking says humans must _ our home planet within the next two centuries and expand into space to survive. "I believe that the long-term future of the human race must be in space," he said. "It will be difficult to avoid disaster on our planet Earth in the next hundred years, let alone the next thousand, or million." He also voiced some concerns about the future of life on the earth. In April, he spoke about his fear of aliens in an interview for the Discovery Channel. "If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," he said. "Such advanced aliens would perhaps become wanderers, looking to conquer and colonize whatever planets they can reach." But Hawking says he is still hopeful for the future of humanity. "I'm an optimist," he told Big Think. "We have made remarkable progress in the last hundred years. But if we want to continue beyond the next hundred years, our future is in space." Getting to another planet will prove a challenge, not to mention colonizing it for humanity. University of Michigan astrophysicist Katherine Freese told Big Think that "the nearest star to Earth is Proxima Centauri which is 4.2 light years away. That means, if you were traveling at the speed of light the whole time, it would take 4.2 years to get there" --- or about 50,000 years using current rocket science. Question: According to the passage, which is NOT a reason why humans need to abandon the earth? Options: A: The earth will be destroyed by worldwide wars before long. B: It will be hard for humans to avoid disasters on the earth in the future. C: Lots of great dangers for humans have been seen. D: Advanced aliens may conquer and colonize the earth some day.
A: A