下載聲音檔請點我 下載填空卷請點我 下載解析版請點我 我超喜歡 X戰警 這系列的影片,每次都會問自已,如果我也可以是個Mutant,我想要選擇哪種超能力呢?根據下面這篇科學人雜誌報導:原來西藏人就是某種X-Men咧,因為有九成的西藏人體內有著足以適應高山生活的變種基因。這對我們這些平地人來說,這還真能算是某種超能力呢! NPR與Scientific Americans都是英文聽力最佳的課外補品,大家要反覆聽,多聽,消化生字,一段時間之後,自然看得到成果。 Most Tibetans Genetically Adapted to the High Life Ninety percent of Tibetans share a genetic mutation that prevents their blood from becoming dangerously clogged with red blood cells at high altitudes—a response that can be deadly for non-native mountaineers. Karen Hopkin reports. When you hear the word “ mutation 變種 ,” you may think of something destructive, or of Marvel’s X-Men. But some mutations—which are just differences in DNA—can be historic. Take, for example, a genetic sequence 基因序列 found in the vast majority 極大多數 of people from Tibet. 西藏人 Millions of Tibetans spend their days at average elevations of nearly 15,000 feet—that’s more than half the height of Mount Everest 世界第一高峰聖母峰 . Up there, the air is thin —with 40 per