One day,I received a call from a colleague.He was about to give a student a zero for his answer to a physical problem,while the student claimed a perfect score.I was elected as their arbiter .I read the examination problem,"Show how it is possible to determine the height of a tall building with the aid of a barometer ." The student had answered,"Take the barometer to the top of the building,attach a long rope to it,lower it to the street,and then bring it up and measure the length of the rope.The length of it is the height of the building." The student had really answered the question completely,but the answer didn't confirm his competence in physics.I suggested the student try again.I gave him six minutes to answer the question,warning that the answer should show some knowledge of physics.Five minutes later,he said he had many answers and dashed off one,which read "Take the barometer to the top of the building and lean over the edge of the roof.Drop the barometer,timing its fall with a stopwatch,then use the physical formula to calculate the height of the building." At this point,my colleague had to accept it,and then the student made almost full marks.I couldn't help asking the student what the other answers were.He listed many others,and then added,"Probably the best one is to take the barometer to the administrator and say to him,'Sir,here is a fine barometer.If you tell me the height of the building,I will give it to you.'" Then,I asked the student if he really did not know the conventional answer to this question.He admitted that he did,but said that he was fed up with high school and college instructors trying to teach him how to think. The name of the student was Bohr who later was famous all over the world.He won the Nobel Prize in Physics in 1922. What was Bohr's attitude toward his schooling? A) Optimistic. B) Critical. C) Approving. D) Pessimistic.
B
Weather changes when the temperature and the amount of water in the atmosphere change. We can see and feel water coming from the atmosphere when we have rain. But the water must somehow get back to the atmosphere. Meteorologists call this the water cycle. There are many stages in the water cycle. Rain falls when water vapour in clouds condenses . Drops of water form and fall to the ground. The water soaks into the ground and feeds streams and rivers. A lot of rain falls into the sea. The heat of the sun evaporates some of the water in the ground and in the rivers, lakes, and the sea. It changes the liquid water into water vapour. The vapour rises onto the air. Water vapour is normally invisible. On a very damp or humid day, however, you can sometimes see water vapour rising from a puddle or pond in a mist above the water. Water vapour also gets into the air from living things. Trees and other plants take in water through their roots and give off water vapour from their leaves. People and land animals drink water and breathe out water vapour. In all these ways the water returns to the air. There it gathers to form clouds and condenses to form rain. The rain falls to earth, and the cycle starts again. It continues even if snow or hail fall instead because both eventually melt to form water. The amount of water vapour in the air depends on the temperature. The air is more moist in the tropics than in the cold polar regions. How many ways of the water returning to the air are discussed in the text? A) Two. B) Three. C) Four. D) Five.
B
Q: A Charlotte, N.C., man was charged with first-degree murder of a 79-year-old woman whom police said he scared to death. In an attempt to evade policemen after a bank robbery, the Associated Press reports that 20-year-old Larry Whitfield broke into the home of Mary Parnell. Police say he didn't touch Parnell but that she died after suffering a heart attack that was caused by terror. Can the guy be held responsible for the woman's death? Prosecutors said that he can under the state's murder rule, which allows someone to be charged with murder if he or she causes another person's death while committing or fleeing from a severe crime like robbery--even if he or she doesn't kill someone on purpose. But, medically speaking, can someone actually be frightened to death? We asked Martin Samuels, chairman of the neurology department at Brigham and Women's Hospital in Boston. Absolutely, no question about it. The body has a natural protective method called the fight-or-flight response , which was originally described by Walter Cannon,the chairman of Harvard University's physiology department from 1906 to 1942. If, in the wild, an animal is faced with a life-threatening situation, the autonomic nervous system responds by increasing heart rate, increasing blood flow to the muscles, and slowing digestion, among other things. All of this increases the chances of succeeding in a fight or running away from an aggressive beast. This process certainly would be of help to primitive humans. However, in the modern world there is obvious decline of the fight-or-flight response. The autonomic nervous system uses the chemical messenger to send signals to various parts of the body to activate the fight-or-flight response. This chemical is toxic in large amounts; it damages the organs such as the heart, lungs, liver and kidneys. It is believed that almost all sudden deaths are caused by damage to the heart. There is almost no other organ that would fail so fast as to cause sudden death. Kidney failure, liver failure, those things... The purpose of the passage is _ . A) to explain why people will die of a heart attack B) to offer some advice on protecting us from heart failure C) to compare different kinds of feelings to cause a death D) to show strong emotions can cause a sudden death
A: D
*Question*
It is well known that the Japanese people's love of fish is almost as strong as a bee's interest in honey. As fish populations were decreasing, fishing companies were forced to fish further and further away from the shore. Then they had a big challenge -- how to keep the fish fresh for longer. So they decided to keep the fish stored in freezers on the boats. But the public did not like frozen fish. So again the fishing companies had a new bigger challenge. What they decided to do was to have fish tanks on their boats. After catching fishes, they would put them in the tanks and keep them living there until they got back to shore. But in this protected environment, lacking predators , the fish stopped moving around. The Japanese public felt these dull fish did not taste fresh, which had an unpleasant effect upon sales. Once again the fishing companies had an even bigger challenge ... Stop for a minute! Before we go any further, I would like to ask "What are your challenges? How do you handle an unexpected challenge? " May I think it this way that you should try to attack your challenges? Conquer them with a Swiss Army knife. Take the most proper and simple tool that you can adopt to deal with your situation. Now back to our story. How did the Japanese finally figure out the fresh fish problem? Sharks! You might think the same. Sharks were caught and put into the tanks with other fishes. Don't sharks EAT fish? Well, they do eat a few fish, but they did also keep more fish active and alert . The fish stay fresh because they are challenged. _ to offer yourself achallengein your own business and career. The relationship between fishes and sharks is similar to that between _ in nature. A) dogs and cats B) monkeys and mosquitoes C) wolves and antelopes D) tigers and lions
**Answer**
C