Read the following article and select the best answer. Article: As the new semester begins,millions of college students across the country are trying hard to remember how best to write a paper-or,more likely,how best to delay that paper. _ is the thief of time and a lot of students suffer from it.They can spend whole days in the library doing nothing but staring into space,eating snacks,surfing the Internet,watching videos and looking at their pretty peers sitting around them,who,most likely,are doing nothing either. Paralyzed by their habit to procrastinate,they write micro blogs about their fears,asking their online friends if they sometimes have the same issue.But this does nothing to solve their problems. According to a recent report by the BBC,95 percent of us procrastinate at some point and 20 percent of the world's population are procrastinators,complicating their lives with their continual delaying of tasks. Procrastinators like to find excuses to justify their behavior,but BBC columnist Rowan Pelling says they are all wrong.Many procrastinators tell themselves they are perfectionists who work best under pressure.Pelling says this is nonsense,as work done at the last minute is more likely to have mistakes than work done on time. She says the behavior of procrastinators often makes them feel flustered and ashamed,inconveniences others,and annoys loved ones. Fortunately,social seientists have made tireless efforts to understand this behavioral shortcoming and offer strategies to control it.Piers Steel,a Canadian social scientist and author of The Procrastination Equation,believes humankind is"designed"to procrastinate.Nevertheless,he suggests a couple of good ways to get through the task at hand. The first one is obvious:Break the task down into small pieces and work your way through them methodically. The second is clever:Give a trusted friend a sum of money and tell them that if you don't complete the task you have undertaken by a specific time,they can keep it or donate it to a cause you hate. Question: According to Rowan Pelling,we can learn that procrastinators . - can find reasonable excuses for their behavior - are able to work best under pressure - are more likely to avoid mistakes at work[] - may upset themselves and their loved ones more frequently
may upset themselves and their loved ones more frequently

Read the following article and select the best answer. Article: The most famous statue-the Sphinx in Egypt has been damaged. The experts are trying to find out the cause to protect it. As we all know, the Sphinx has the body of a lion and the face of a man. It was cut from limestone near Egypt's pyramids about 4, 500 years ago. Not long ago a large piece of stone fell from the Sphinx's right shoulder. In order to protect the statue from more harm, a computer was placed on it to measure rainfall, wind speed and air temperature. The computer also measured the amount of water and air pollution, the direction of wind and the temperature of the statue itself. The effects of age, wind, water and pollution have greatly weakened the Sphinx. Sunlight, wind, water and pollution have been eroding the outside of the statue for centuries. The experts hope that the information from the computer will help protect it from more damage. They say the more they know about what is destroying the Sphinx, the more they can do to protect it. Question: Which of the following is TRUE? - The Sphinx has completely fallen down. - The Sphinx is made of a kind of rock, which can be destroyed by wind, rain and so on. - The Sphinx is made of a kind of rock, which is hard enough not to be damaged by anything. - The Sphinx is in too poor condition to be protected.
The Sphinx is made of a kind of rock, which can be destroyed by wind, rain and so on.

Q: Read the following article and select the best answer. Article: Last year, on report card day, my son and a group of his 13-year-old friends piled into the back seat of my car, ready for the last-day-of-school party at McDonald's. "Jack got a laptop for getting straight A's, and Laurie got a cell-phone," one boy said. "Oh, yeah, and Sarah got an iPod Nano, and she's only in third grade," said another. "And how about Brian? He got $10 for each A." I suddenly became concerned. These payoffs might get parents through grammar school, but what about high school and beyond? What would be left after the electric guitar, the cell-phone, and the DVD player? I saw the road ahead: _ I saw my comfortable lifestyle disappear before my eyes---no more of those $5 bags of already-peeled organic carrots. No more organic anything! I started to feel surprised and nervous. Would every goal achieved by my two children fetch a reward? A high grade point average? A good class ranking? Would sports achievements be included in this reward system: soccer goals, touchdowns ? What about the orchestra ? Would first chair pay more than second? I'd be penniless by eighth-grade graduation. "We never paid anything for good grades," said my neighbor across the street, whose son was recently accepted at MIT. "He just did it on his own. Maybe once in a while we went out for pizza, but that's about it." Don't you just hate that? We're all running around looking for the MP3 player with the most updates, and she's spending a few dollars on pizza. She gets motivation; we get negotiation. And what about the primary grades? What do these students get? "When the teacher asked if anyone got rewards for good grades, everyone in my class raised their hands and said they got ice cream cones ," said one third-grader. Question: The author takes her neighbor as an example to show _ . - pizza is the best way to motivate children - it is necessary to reward children for their good grades. - getting rewards for good grades is common nowadays - rewards are not the only way to motivate children
A: rewards are not the only way to motivate children

Read the following article and select the best answer. Article: Like distance runners on a measured course,all of us will move through time in a roughly predictable pattern. In the first stage of our lives,we develop and grow, reaching toward the top of physical vitality . After we grow up,however, the body begins a process of gradually wearing out. A new awareness of physical fitness may help lengthen our years of health and vitality,yet nothing we do will work to stop the unavoidable force of aging. Most of the changes of aging take place deep inside the body.The lungs become less able to take in oxygen.Powerful muscles gradually lose their strength.The heart loses power and pumps less blood.Bones grow easier to break. Finally, we meet a stress,a stress that is greater than our physical resistance.Often,it is only a minor accident or chance infection(a disease caused by virus),but this time, _ brings life to an end. In 1932,a classic experiment nearly doubled the lifetime of rats,simply by cutting back the calories in their diet The reason for the effect was then unknown. Today, at the University of California at Berkley, Dr.Paul Seagle has also greatly lengthened the normal lifetime of rats.The result was achieved through a special protein limited diet,which had a great effect on the chemistry of the brain.Seagle showed that within the brain,specific chemicals control many of the signals that influence aging.By changing that chemical balance,the clock of aging can be reset. For the first time, the mystery of why we age is being seriously challenged.Scientists in many fields are now making striking and far-reaching discoveries. An average lifetime lasts 75 years,yet in each of us lies a potential for a longer life.If we could keep the vitality and resistance to disease that we have at age twenty, we would live for 800 years. Question: Which of the following is not a change of aging? - People gradually lose their muscle strength. - Bones tend to break more easily. - The heart loses power and pumps less blood. - The lungs become unable to take in oxygen.
The lungs become unable to take in oxygen.