Teens don't understand the big fuss .As the first generation to grow up in a wired world,they hardly know a time when computers weren't around,and they eagerly catch the chance to spend hours online,chatting with friends.So what? But researchers nationwide are increasingly worried that teens are becoming isolated ,less skillful at person-to-person relationships,and perhaps numb  to the cheatings that are so much a part of the e-mail world."And a teen's sense of self and values may be changed in a world where personal connections can be limitless,"said Sherry Turkle. Another researcher,Robert Kraut,said he's worried about the "opportunity costs"  of so much online time for youths.He found that teens who used computers,even just a few hours a week,showed increased signs of loneliness and social isolation."Chatting online may be better than watching television,but it's worse than hanging out  with real friends,"he said. Today's teens,however,don't see anything strange in the fact that the computer takes up a central place in their social lives."School is busy and full of pressure.There's almost no time to just hang out,"said Parker Rice,17."Talking online is just catch-up time." Teens say they feel good about what they say online or taking the time to think about a reply.Some teens admit that asking someone for a date,or breaking up,can be easier in message form,though they don't want to do so.But they insist there's no harm. Teens think that talking online can help them  _  . A) use computers properly B) improve their school work C) develop an interest in social skills D) reduce their mental pressures
D


Asia-Pacific consumers are the world's largest group of online shopping lovers and many rely on Internet reviews when making purchases, research firm Nielsen said this week. The firm said 35% of consumers in Asia-Pacific used over 11% of their monthly spending to make online purchases, compared to a global average of 27% of consumers. South Koreans were the heaviest online buyers in Asia, with 59% directing more than 11% of their monthly spending to online purchases, followed by 41% in China, Nielsen said in a report. A further 31% of Asian consumers use between 6% and 10% of their monthly shopping purchases to buy items online. More Asia-pacific consumers also intend to buy online in the next six months than those from other regions, with South Koreans and Chinese the most likely to make such purchases. Among the purchases consumers in the region are likely to make in the next six months are books, clothing, shoes, airline tickets, electronic equipment and hotel reservations. "Technology and the Internet will very likely basically change how and where shoppers spend their money and interact with sellers," said Pete Gale, a managing director at Nielsen's Retailer Services. "We are seeing a strong trend in markets like Korea, where a significant population of online shoppers buy essentials such as groceries, cosmetics and nutrition supplies over the Internet." Nielsen said opinions posted online were important in Asia-pacific customers' decisions to buy products such as cosmetics, cars, software and food. Asia-pacific consumers were also the most likely to share dissatisfaction at a product on the Internet compared with consumers elsewhere. "The increasing accessibility of the Internet and unbelievable popularity of social media and online discussion forums mean today's brands have nowhere to hide, " said Megan Clarken, Asia-Pacific managing director at Nielsen's online division. Nielsen said in June that social media such as Facebook and Twitter or blogging sites had become powerful tools influencing what... What influences Asia-Pacific consumers most when making purchases online? A) Other buyers' comments B) Powerful online tools C) The varieties of online item D) The price and the way to play
A


Q: We Americans are wasteful people, not used to saving. Early settlers, our forefathers set us an example of wasting everything, for they thought nature's resources were so plentiful that none of them ever imagined that natural materials would be used up in time. Within a few years of the first Virginia settlement, for example, pioneers burned down their houses when they were ready to move west. They burned down their houses with only one aim to get the nails for future use. No one ever gave a thought to the priceless hardwoods that went up in smoke. As a people we destroy many valuable things that other people save. I noticed this when I was living in Britain. I received a letter from one England's largest banks. It was enclosed in a used envelope that had been readdressed to me. Such a practice would be unthinkable in the United States. American banks, even the smallest, always use expensive stationery with the names of all twenty - eight vice - presidents lists on side of the page. According to the passage, we know the writer is   _   . A) a Chinese B) a Japanese C) an Englishman D) an American
A: D


(Q).
Imagine a house that keeps itself warm in the wintertime. Think of the savings in terms of fuel bills and unfriendly emissions. Such houses in fact exist, called "passive houses". The concept of these highly energy-efficient buildings took root in the 1990s, before slowly consolidating as a niche construction   concept in the 2000s. Are passive houses now actively moving into the mainstream as sustainable buildings? For Brian McGarry, an economics lecturer who built a family house based on passive housing criteria in the Pyrenees this year, the arguments look convincing. As his first full winter in the low energy house draws in, we asked him to keep us informed. Do passive houses work? I had never heard of a passive house in February 2012, when I purchased a plot of land. Nor did I expect that I would be persuaded to build a pre-constructed, custom-designed house based on energy-efficient passive house criteria. It promised to be easier and quicker to build, cheaper to run, and more comfortable to live in. The objective was to incorporate the fundamental concepts of passive energy management into my project: an airtight and highly insulated building envelope; large southfacing double or triple-glazed windows (if possible, filled with argon gas) that passively capture the energy of the sun; a heat recovery ventilation system to provide fresh air; and a simple, low-cost heating system consisting of a modern wood-burning stove, a bathroom heater and a portable radiator backup for when the sun doesn't shine and temperatures decline. No significant limitations were placed on the design, and it had excellent environmental credentials. Moreover, the cost was no more than a conventional build. After six months in use, the house is proving to be both cheap to run and remarkably comfortable-staying cool in the hot summer was effortless, as long as the windows were shuttered or shaded from the sun. Nowstaying warm in the cold, high-altitude December climate also seems easy, so far. Winter arrived in force in the... How did Brian McGarry find his self-built passive house? A) very unaffordable B) Energy-consuming C) comfortable to live in D) Awkward to use
(A).

C