Q: Read the following article and answer the question. Article: Playing is a serious business for children. In fact, it's what they do best! Ask them why they do it, and kids will probably say, "Because it's fun!" But it's much more than that. It's also good for them. Studies show that from birth babies begin learning through playing. They use their five senses to get to know their new world. Touching allows them to discover how different things feel. Brightly color1ed toys and clothing help develop a baby's sense of sight. When small children choose which toy to play with, they begin developing their abilities in deciding something. Children love toys that allow them to use their imagination. Sometimes an empty box is more fun than a high-tech toy. That's because a box can become anything a child imagines it to be. Crayons, paints and Ply-Doha are also good because they allow children to create. Traditional building blocks teach important pre-math skills like problem-solving. Playing doesn't become any less important once children start school.   _  ?    . Kids learn how to share, take turns and play by the rules. Question: Why is playing a serious business for children? Answer:

A: Because children can get much more from playing.


Q: Read the following article and answer the question. Article: Many businesses today use conferences as a means of discussing new plans of the company. As people are paying more attention to the environment and green problems, more businesses are looking for ways to reduce their negative effect on the environment. Many businesses do this by using Web conferencing. Web conferencing is a technology that allows people to communicate more effectively over the Internet. It's an easy way of hosting and attending conferences without having to leave the office. Each of the people involved in a Web conference will be posted an invitation to the conference with the time and date of the Web conference on it. When the conference is ready to begin, all participants   must sit at their computers and they will be connected over the Internet. With Web conferencing all participants attend conference from the comfort of their own desks. Obviously, in doing this no fuel is used in traveling to and from a conference, and less work is taken up in attending a conference. Any material to be used during Web conference is simply e-mailed to all the participants before the conference. Participants can then either choose to print material or read it on screen. This not only saves paper but also greatly reduces mailing costs for the business. As a conference hall or business center isn't being used, it means that the only power that is used is the power that is used by the participants' personal computers. Similarly, conference organizers don't have to arrange for food or overnight accommodation. All this means that less energy is used. Often in business some companies actively choose to do business with other companies that do many things to reduce their negative impact on the environment. And Web conferencing helps you show other businesses that you are willing to work hard for the green cause. Question: What is the passage mainly about? Answer:

A: Green benefits of Web conferencing


Q: Read the following article and answer the question. Article: You are standing in the kitchen and a voice says, "Add a little more salt to that soup." Yes, it's always nice to have someone help you when you're cooking. But this voice is not from a man. You are alone! Then where does it come from? Is it from a ghost? No, this isn't a ghost kitchen--it's the kitchen of the future. Scientists are working to improve everything in the kitchen, from fridges to tables, and even the ways we cook. They are making a system. It will help a person cook a meal. You don't need cookbooks. You can hear how to cook food. The fridge of the smart kitchen has a scanner. It looks at the foods in the fridge. It will order more milk from the store when your milk has gone bad or there is no more in the fridge. The gloves will test the temperature of everything they touch and say, "Need to cook longer" or "Hot and ready to eat". If you leave them on the stove by mistake, they'll say, "Fire!" Even the knives and spoons will speak. For example, if your food is bad, the knives and spoons will tell you not to eat it. The future kitchen may look wonderful, but it's not cheap. The multimedia fridge costs about 8,000 dollars. So even though high-tech kitchens are no longer a dream, not everyone can afford one. Question: In the future, you can cook by   _  . Answer:

A: hearing


Q: Read the following article and answer the question. Article: How many hours do you spend sitting in a chair every day? Eight hours in the office plus three hours in front of the TV after work is the norm for many people.     You probably don't need an expert to tell you that sitting too much is not good for your health--from an increased risk of heart disease and obesity in the long term,to reduced cholesterol maintenance in the short term,not to mention the strain on your neck and spine.     To make matters worse,many researches show a good diet and regular exercise call't reduce the negative effects of sitting too much.     A 2010 study of nearly 9,000 Australians found that for each additional hour of television a person watched per day,the risk of dying rose by 11 percent.Another study tracked the health of 123,000 Americans between 1992 and 2006.The death rate for men who spent six hours or more per day sitting was about 20 percent higher than for men who sat for three hours or less.     So what can we do about it? Health experts suggest we break up those many hours spent sitting with more hours spent standing.     The BBC conducted a simple experiment with a group of 10 volunteers who usually spent most of the day sitting.They were asked to stand for at least three hours a day.The researchers took measurements Oil days when the volunteers stood,and when they sat around.When they looked at the data there were some striking differences,the BBC reported. Blood sugar leveled off much quicker on the days when the study subjects stood compared with the days they spent in a chair.Standing also burned more calories----about 50 calories an hour.A member said although doing exercise offers many proven benefits,our bodies also need the increase in muscle activity that standing provides. The researchers believe that even small adjustments,like standing while talking on the   phone,will help. Question: What is the purpose of the experiment in the text? Answer:

A: