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The number of smartphone users globally to set to reach 2.5 billion by 2019. Around a third of the world’s population will own one.
到2019年,全球智能手机用户将达到25亿。大约三分之一的人将拥有一部智能手机。
Smartphones touch every element of our lives but did you know that they also connect nearly every element on the planet.
智能手机参与了我们生活中的方方面面。但你知道吗?它们也几乎联系着地球上所有的元素。
In fact, of the 118 elements on the periodic table, 75 can be found inside a smartphone.
事实上,在元素周期表的118个元素中,有75种可以在智能手机里找到。
These raw materials are extracted from the ground and shipped to refineries and factories in a truly global supply chain.
这些元素从地下被提取出来,通过一条真正的全球化供应链运送至各个精炼厂和工厂。
Silicon, one of the most common elements in the Earth’s crust, is used to make the billions of transistors in the chips that power your phone.
硅元素是地壳中最常见的元素之一,被用于制作数以亿计的,为手机供电的芯片中的晶体管。
Gold is used for electrical wiring about 0.03 grams of it in each iPhone.
黄金用于制作电线。每台苹果手机含有0.03克黄金。
Indium, another metal is used to make touchscreens.
另一种金属铟被用于制作触摸屏。
But when it comes to batteries, lithium is one of the key components and this element is only mined in a handful of countries,
锂是生产电池的重要原料之一。但仅有寥寥数个国家从事锂金属开采工作。
Until recently Chile used to produce the most lithium but now Australia has the biggest market share.
不久前,智利还是锂金属的最大供应商,但如今,澳大利亚的市场份额反超为全球第一。
The Democratic Republic of Congo, a dangerously unstable country with a poor human rights record
刚果民主共和国,一个充满危险和不稳定因素以及糟糕人权记录的国家,
produces more than half the world’s cobalt, another crucial element in smartphone batteries.
生产了全球一半以上的钴。而钴是制作智能手机电池的另一个关键元素。
Smartphone makers are under pressure to ensure their cobalt is responsibly sourced.
智能手机生产商都面临保证钴金属供货来源稳定的压力。
About 80% of the cobalt used in batteries is refined in China.
大约80%用于生产电池的钴都是在中国精炼的。
Many so-called rare earth elements are also used in smartphones in the screen for speaker and the motor that makes your phone vibrate.
许多所谓的稀土元素也被用于制作智能手机屏幕、扬声器和振动马达。
About 85 percent of rare earth elements are produced in China.
约85%的稀土元素产自中国。
Despite their name rare earth elements are not particularly rare
尽管被称作稀土,但事实上这种元素并不十分稀有。
but they are hard to extract without producing toxic and radioactive byproducts.
稀土的生产过程总会带来一些有毒物质和放射性副产品。
Many of the elements used in smartphones are finite resources and have no functional substitutes.
许多用于智能手机制造的元素都是有限的,并且没有功能性替代品。
Rather than digging in the ground for the elements needed for new handsets, it makes sense to extract them from old phones
从旧手机中提取这些元素用于制作新手机也许比从土地中挖掘要更有意义,
but only about 10% of handsets are recycled now.
但如今,旧手机的回收利用率仅有约10%。
So recycle your phone if you get a new one this year. Why? It is you might say-- elementary.
所以,如果你今年打算购买新手机,就把旧的送去回收吧。为什么?你可以说是为了——元素。

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Question:
Which country is the largest producer of lithium now?
A  China
B  Chile
C  Australia
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