Question: Read the article and select the best answer. Article: It has become a certain belief among the public-drink at least eight glasses of water a day to improve health and well--being.Bottled water companies often repeat it to increase their sales but it is actually a silly idea. There is no evidence to prove the advantages of drinking eight glasses of water a day,scientists say. The misunderstanding is caused from the suggestion that adults should drink 2.5 liters of water daily,which was highlighted(,)by the British Medical Journal in December.The important part of the suggestion that most of this quantity of water is contained in prepared foods,however,is usually ignored. U.S.researchers who reviewed the evidence concluded that most people do not need to worry about the amount of water they drink every day.Besides drinking water,they will be getting plenty of liquid in other ways.Caffeinated drinks such as tea,coffee and cola,and alcohol can help reach the daily total if they don't drink too much,though these drinks help the production of urine . Less well known are the dangers of drinking too much water,causing water poisoning,low salt levels and even death. The review of research by Dan Negoianu,from the University of Pennsylvania,found that not a single study included the suggestion of drinking eight glasses of water a day.Although one small study suggested that drinking water could result in fewer headaches,the results were not very important.However,the benefits of drinking some water to prevent a pain in head after drinking too much alcohol are.separately,proved to be true. No studies showed any advantages to the color1 of the skin because of the increased water taken into bodies.Dehydration can make skin less pleasant,but there was no clear evidence to support the idea that water helps people keep a youthful appearance.The researchers also found no evidence that drinking lots of water does some good to the body's organs . Question: The writer's main purpose of writing this passage is to _ . Options: A: persuade people to drink different kinds of water B: warn people of the danger of drinking much water C: tell people drinking much water is not as healthy as is considered D: help people realize the importance of drinking enough water every day
Answer: C

Question: Read the article and select the best answer. Article: There was once a man called Mr. Flowers, and flowers were his only joy in life. He spent all his free time in one of his four glass-houses and grew flowers of every color, with long and difficult names, for competitions. He tried to grow a rose of a new color to win the silver cup for the Rose of the Year. Mr. Flowers' glass-houses were very near to a middle school. Boys of around thirteen of age were often tempted to throw a stone or two at one of Mr. Flowers' glass-houses. So Mr. Flowers did his best to be in or near his glass-houses at the beginning and end of the school day. But it was not always possible to be on watch at those times. Mr. Flowers had tried in many ways to protect his glass, but nothing that he had done had been useful. He had been to school to report to the headmaster; but this had not done any good. He had tried to drive away the boys that threw stones into his garden; but the boys could run faster than he could, and they laughed at him from far away. He had even picked up all the stones that he could find around his garden, so that the boys would have nothing to throw; but they soon found others. At last Mr. Flowers had a good idea. He put up a large notice made of good, strong wood, some meters away from the glass-houses. On it he had written the words: DO NOT THROW STONES AT THIS NOTICE. After this, Mr. Flowers had no further trouble; the boys were much more tempted to throw stones at the notice than at the glass-houses. Question: Boys were often tempted to _ . Options: A: throw stones at Mr. Flowers' glass-house B: throw stones at Mr. Flowers from their school C: be in or near by Mr. Flowers' glass-houses D: play with Mr. Flowers near his glass-houses
Answer: A

Question: Read the article and select the best answer. Article: Experiments aboard the spaceship Columbia have disproved a theory on the human nervous system which won an Austrian professor a Nobel prize 79 years ago. West German astronaut Ulf Merbold disproved the theory during tests aboard the spaceship yesterday. His discovery is connected with the workings of the inner ear, the body's balance mechanism . In l914 Professor Robert Barany won the Nobel prize for Physiology and Medicine when he announced that temperature differences affected the inner ear and caused the eyes to blink . His theory was accepted by scientists. But Merbold carried out tests to find if the theory was correct and shocked himself and space officials when he proved it wrong. According to Barany's theory the eyes would blink when cold air was blown into one ear and hot air blown into the other. But if this theory was correct such a movement would be impossible in zero gravity . Both Merbold's eyes continually blinked when the test was carried out. Question: Tests were carried out in outer space in order to _ . Options: A: find what causes the eyes to blink B: shock the world C: win the prize D: prove the theory
Answer:
D