Article: The global energy crisis is approaching. What can we do? Here are some steps you can take. Cooling puts the greatest stress on your summer energy bill and the power grid . Just as t tune-up for your car can improve your gas mileage, a yearly tune-up of your heating and cooling system can improve efficiency and comfort. Clean or replaces filters monthly or as needed. For central air conditioning systems and room air conditioners, look for the ENERGY STAR, the federal government's symbol for energy efficiency. For central air, purchase the system with the highest possible Seasonal Energy Efficiency Raton. (SEER) Use energy-efficient ceiling fans either alone or with air conditioning. Ceiling fans do a great job of circulating air. When used with air conditioning, fans allow you to raise the thermostat  and cut costs. Ceiling fans cool people, not rooms, so before you leave; turn off the ceiling fan. Let a programmable thermostat! "remember for you" to automatically adjust the indoor climate with your daily and weekend patterns to reduce cooling bills by up to 10 percent. You can come home to a comfortable house without wasting energy and cresting pollution all day while you are at work. Try to make your home airtight enough to increase your comfort, make your home quieter and cleaner and reduce your cooling costs up to 20 percent. Gut your air conditioning load, and reduce pollution by planting planting leafy trees around your home and fixing reflective bricks on your roof. Close blinds or shades on south-and west-facing windows during the day, or fix shading equipment to avoid heat build-up. Turn off everything not in use: lights, TVs, computers. And use fluorescent bulbs , which provide bright, warm light while using at least two-thirds less energy, producing 70 percent less heat and lasting up to 10 times longer than incandescent bulbs . Drive the car that gets better gas mileage whenever possible if you own more than one vehicle. If you drive 12,500 miles a year, switching 10 percent of your trips from a... Question: According to the passage, the thermostat is used to    _   . Yes or no, is the answer "control room temperature"?
No

Article: Desert plants fall into two sorts according to the way they deal with the problem of surviving drought. There are the drought--avoiders--those which persist  only as seeds, ready to spring up when it rains, to flower quickly and produce another crop of seeds, and to die again. There are also the drought--resisters--those which have evolved various methods for strong water, locating underground water, or reducing their need for water by such devices as shedding their leaves. The drought--resisters are perennials ,they manage to live from one rainy season to another, slowly growing bigger and bigger. Of these, the succulents  is a small but interesting fraction . They may store water in their leaves, in their stems, or in underground containers.    In the American deserts the best--known succulents are the cacti . They come in a wide range of sizes, from 50--foot tall giant saguaros  to tiny round cacti about the size of a thumb--nail. They take thick, cylindrical  or even spherical forms, thereby exposing a minimum of evaporating surface to the air and light. They are leafless, except in youth, and then the leaves are small. Typically their surfaces are spiny, discouraging thirsty animals, and channeled like an accordion , so the fleshy stem may expand quickly when the plant drinks and contract slowly as it uses up the water. The root system is widespread and shallow, with good reason; only about 3 per cent of the rain that falls on the desert penetrates to any significant depth into soil. Question: The passage gives us an impression that   _   . Yes or no, is the answer "the desert plants are shaped in a way as if them were designed by somebody on purpose"?
No

Article: In 1982 Steven Callahan was crossing the Atlantic alone in his sailboat when it struck something and sank. He was out of the shipping lanes and floating in a life raft, alone. His supplies were few. His chances were small. Yet when three fishermen found him seventy-six days later, he was alive. His account of how he survived is fascinating. But the thing that caught my eye was how he managed to keep himself going when all hope seemed lost. Giving up would have seemed the only wise option. When people survive these kinds of circumstances, they do something with their minds that gives them the courage to keep going. Many people in similarly desperate circumstances give in or go mad. "I tell myself I can handle it," wrote Callahan. "Compared to what others have been through, I'm fortunate. I tell myself these things over and over, building up fortitude...." It struck me as something important. And I've told myself the same thing when my own goals seemed far off or when my problems seemed too overwhelming. And every time I've said it, I have always come back to my senses. The truth is, our circumstances are only bad compared to something better. But others have been through much worse. So here, coming to us from the extreme edge of survival, are words that can give us strength. Whatever you're going through, tell yourself you can handle it. Tell this to yourself over and over, and it will help you get through the rough spots. Question: Which would be the best title? Yes or no, is the answer "An important lesson-Perseverance"?
