Article: Can you remember a morning when you've woken up to the ring of your alarm clock and wished you could stay in bed? You haven't slept well, your hair is a mess. Worse, you can't stop yawning. Yawning is universal to humans and many animals. Cats, dogs and fish yawn just like humans do! Yawning is an involuntary(,) action during which you open your mouth and breathe deeply. The average duration of a yawn is about 6 seconds. The purpose and cause of yawning are still a mystery. Scientists are not sure what causes a yawn. People yawn when they are tired or bored, but they also yawn when they aren't. There are many ideas explaining why we yawn. One idea is that yawning is a way for the body to become more alert by taking in more oxygen. A yawn increases the heart rate, forces carbon dioxide out of the lungs and blood stream, and brings oxygen to the brain. But one study showed that volunteers given a lot of oxygen did not yawn any less than before, while those given a lot of carbon dioxide did not yawn more. Another idea is that early humans used yawning as a form of communication. If one decided it was time to sleep, they would tell the others by yawning and they would do it in return to show they agreed. A third explanation comes from psychology professor Gordon Gallup of University at Albany in New York. He said that as people yawn, they cool off their brains. "Brains are like computers." he said. "They only operate efficiently and effectively when they're cool. Many things connected to yawning, like being tired, make the brain hot, and yawning can reduce the heat." Scientists have sent people into space, and created terrible nuclear weapons, but there are lots of seemingly simple things, such as why we yawn, or hiccup , that they can't figure out. Next time you are in class in the morning, let out a big yawn and watch to see how many of your classmates yawn in response! Question: Which is not among the possible reasons for yawning mentioned in the passage? Yes or no, is the answer "A way to show that you feel hot."?
No

Article: Certain people make you feel comfortable when they are around. You spend an hour with them and feel as if you've known them half your life. These people have something in common. And once you know what it is, we can try to do it ourselves. How is it done? Here are several skills that good talkers have. If you follow the skills, they will help you to put people at their ease, and make friends with them quickly. First of all, good talkers have asked questions. Almost anyone, no matter how shy he is, will answer a question. One well-known businesswoman says, "At business lunches, I always ask people what they did that morning. It's a common question, but it will get things going." From there you can move on to other matters ----sometimes to really personal questions. And how he answers will let you know how far you can go. Second, once good talkers have asked questions, they listen for the answers. This point seems clear, but it isn't. Your question should have a point and help to tell what sort of person you are talking to. And to find out, you really have to listen carefully and attentively. Real listening at least means some things. First it means not to change the subject of conversation. If someone sticks to one topic, you can take it as a fact that he is really interested in it. Real listening also means not just listening to words, but to the tone of voice. If the voice sounds dull, then it's time for you to change the subject. Finally, good talkers know well how to deal with the occasion of parting. If you're saying goodbye, you may give him a firm shakehand and say, "I've really enjoyed meeting you." If you want to see that person again, don't keep it a secret. Let people know what you feel, and they may walk away feeling as if they've known you half their lives. Question: After asking somebody a question, you should _ . Yes or no, is the answer "make it clear what is fit to ask next"?
No

Q: Article: The behavior of a building's users may be at least as important as its design when it comes to energy use, according to new research from the UK Energy Research Centre (UKERC). The UK promises to reduce its carbon emissions by 80 percent by 2050, part of which will be achieved by all new homes being zero carbon by 2016. But this report shows that sustainable building design on its own--though extremely important--is not enough to achieve such reductions: the behavior of the people using the building has to change too. The study suggests that the ways that people use and live in their homes have been largely ignored by existing efforts to improve energy efficiency, _ instead focus on architectural and technological developments. "Technology is going to assist but it is not going to do everything,"explains Katy Janda, a UKERC senior researcher, "consumption patterns of building users can defeat the most careful design." In other words, old habits die hard, even in the best designed eco home. Another part of the problem is information. Households and bill payers don't have the knowledge they need to change their energy use habits. Without specific information, it's hard to estimate the costs and benefits of making different choices. Feedback facilities, like smart meters and energy monitors, could help bridge this information gap by helping people see how changing their behavior directly affects their energy use; some studies have shown that households can achieve up to 15 percent energy savings using smart meters. Social science research has added a further dimension, suggesting that individuals' behavior in the home can be personal and cannot be predicted--whether people throw open their windows rather than turn down the thermostat , for example. Janda argues that education is the key. She calls for a focused program to teach people about buildings and their own behavior in them. Question: The information gap in energy use _ . Yes or no, is the answer "can be bridged by feedback facilities"?
A: Yes