【正确答案】 B

【答案解析】[解析]
As you use computers, as you're surfing the web, especially in large data centres, it generates a lot of heat. And right now, that heat is wasted. It actually just gets pulled away and goes out through the chimneys, etc. Well, our scientists are putting small channels actually into the chips that do the computing, taking that heat back and using heat pump technology to then heat a building or even cool a building. So the energy will be reclaimed. So computing will become a lot more energy efficient.

新闻主要讲了同时使用多台计算机工作会产生很大热量，而这些热量就白白浪费了，科学家近期发明了一种芯片可以将这些热量利用到建筑物供热或供冷，因此是关于能量再利用的，故选B。

【正确答案】 A

【答案解析】[解析]
People who live in polluted cities can see the grit and dirt produced from vehicle engines but some of the most damaging emissions are only now starting to be understood. They're ultrafine particles, way too small to be seen. Hundreds of them, placed side by side, match the width of a human hair. They are primarily produced by combustion in diesel engines.

新闻第一句末尾和第二句明确指出the most damaging emissions…They're ultrafine particles…，故选A。

【正确答案】 C

【答案解析】[解析]
"Everything is made from scratch. They cut up the chicken; they grab it by hand. " Penny Jones, the administrative coordinator at Meals on Wheels says the kitchen typically prepares about 1,000 meals a day. "They start here at five-thirty in the morning and all of the meals are out the door by eleven a.m. "The meals are delivered to people all across central Vermontcovering a 160 kilometer radius.

新闻中说They start here at five-thirty in the morning，故选C。

【正确答案】 B

【答案解析】[解析]
Britain's relationship with the invigorating brew is much shorter, but the beverage nonetheless enjoys pride of place as the UK's national drink. In fact the UK Tea Council claims Britons drink an average of three cups a day, or a staggering national total of 165m cups every day. With figures like these it is no surprise that time spent taking tea eats into the working day of the British labor force. A recent survey found that 24 minutes a day are lost to making, buying and drinking tea and coffee. This equates to ￡400 a year in lost man hours per employee, or 190 days over a lifetime.

新闻中说Time spent taking tea eats into the working day of the British labour force，之后又给出了最近的调查数据来证明英国人在喝茶上花的时间之多，故选B。

【正确答案】 A

【答案解析】[解析]
For decades scientists have followed penguins by putting bands around their flippers. This allows individual birds to be identified at a distance. But there have been concerns that flipper bands might harm the birds by slowing them down as they swim. The latest study, reported in the journal Nature, confirms it. Scientists from Strasbourg University followed a colony of king penguins for ten years.

根据新闻第二句可知在企鹅脚蹼上安索线是为了在远处辨认出单个的企鹅，故选A。