2. Last year was the hottest on earth since record-keeping began in 1880, scientists reported on Friday, underscoring warnings about the risks of runaway greenhouse gas emissions and undermining claims by climate change contrarians that global warming had somehow stopped.
3. 1.It wasn’t me! – Because some things just aren’t worth taking credit for。
4. n. 光泽，上光剂，优雅，精良
6. As supporters kept streaming toward the Capitol building, one yelled out, “Today, a new Puerto Rico begins!” to the cheers of others, including those holding U.S. flags.
内容来自:可可英语 http://www.kekenet.com/read/201303/232075.shtmlThose looking for greater happiness and satisfaction in life should head to northern Europe, but steer clear of Egypt and countries worst hit by the eurozone crisis, according to the 2013 World Happiness Report released Monday by Columbia University's Earth Institute.