The green building movement, started in the 1970s as a way to reduce environmental destruction, is changing the way buildings are constructed. In the early years, green builders were a small minority, and their goals of reducing the environmental impact of buildings were considered unrealistic. Now, however, the movement is growing, as builders have been able to take advantage of new technology.
Green builders try to make use of recycled materials, which means less waste in dumps. Also, they reduce environmental impact by reducing the energy requirements of a building. One way is to provide an alternative, non-polluting source of energy. First, with solar panels, it is possible to produce electricity from the rays of the sun. Once installed, they provide energy at no they cost and with no pollution.
Another solution is to reduce the amount of energy required in a building. It is possible to cut electricity use noticeably by improving natural lighting and installing low-energy light bulbs. To reduce the amount of fuel needed for heating or cooling, builders also add insulation to the walls so that the building stays warmer in winter and cooler in summer.
One example of this advanced design is the Genzyme Center of Cambridge, the most environmentally responsible office building in America. Every aspect of the design and building had to consider two things: the need for a safe and pleasant workplace for employees and the need to lessen the negative environmental impact. 75 percent of the building materials were recycled materials, and the energy use has been reduced by 43 percent and water use by 32 percent, compared with other buildings of the same size.
In other parts of the world, several large-scale projects have recently been developed according to green building principles. One of these is in Vauban, Germany, in an area that was once the site of army housing. The site has been completely rebuilt with houses requiring 30 percent less energy than conventional ones. These houses, heated by special non-polluting systems, are also equipped with solar panels.A larger project is under way in China. The first phase of this project will include houses for 400 families built with solar power, non-polluting bricks, and recycled wall insulation. In a second phase, entire neighborhoods in six cities will be built. If all goes well, the Chinese government plans to copy these ideas in new neighborhoods across China.
Green building ideas, on a small or large scale, are spreading. Individuals, companies, and governments are beginning to see their benefits. Not only are they environmentally friendly, green buildings improve living and working conditions and also save money in the long run.
(Adapted from "Advanced Reading Power" by Beatrice S. Mikulecky and Linda Jeffries)

According to some sources, the first online dating service appeared in the mid-nineties. Different from international matching services that were already up and running, these sites were created to help the average busy person find someone to date and, perhaps eventually, someone to many. For this week’s column, I asked a few people what they thought of online dating.
Many who have tried online dating it’s the greatest invention since sliced bread. Although he was hesitant to try it at first, Mitchell Waverton, a 25-year-old who’s looking for love, gives online dating thumbs-up. Waverton explains, “I don’t have a lot of time to meet women. Some of my friends told me I should try online dating. I wasn't sure about it because it just seems weird- meeting someone online. But then I tried it, and it was a lot of fun”. However, not everyone has the same opinion. Peter Wong explains, “A few of my friends tried to get me join an online dating site. I only agree to do it to prove to them that it wasn’t going to work for me”. After I went on five miserable dates, my friends were finally convinced that online dating wasn't for me.”
I do believe that online daters are sometimes successful in their search of love, but I think success stories are the exception rather than the rule. Although online dating seems like it’s here to stay, I’ve heard enough horror stories to keep me away from it.
(Adapted from Select Reading by Linda Lee and Bernard)

WHAT IS SPEED READING, AND WHY DO WE NEED IT?
Speed reading is not just about reading first. It is also about how much information you can remember when you have finished reading. The World Championship Speed-Reading Competition says that its top competitors average between 1.000 and 2,000 words a minute. But they must remember at least 50 percent of this in order to qualify for the competition. Nowadays, speed reading has become an essential skill in any environment (26) people have to master a large volume of information.
Professional workers need reading skills to help them (27) many documents every day, while students under pressure to deal with assignment may feel they have to read more and read faster all the time.
(28) there are various methods to increase reading speed, the trick is deciding what information you want first. For example, if you only want a (29) outline of an issue, then you can skim the material quickly and extract the key facts. However, if you need to understand every detail in a document, then you must read it slowly enough to understand this. Even when you know how to ignore irrelevant detail, there are (30) improvements you can make to your reading style which will increase your speed.
(Adapted from Complete IELTS student's book by Guy Brook-Hart and Vanessa Jakeman)