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【题目】 Why Ultra-pure(超高纯的)Water Is Actually Bad for Your Health Many people are surprised to hear that drinking purified water on a regular, daily basis is actually dangerous. So why is 100% ultra-pure water not good for us? 1

There is no such thing as truly pure water in the natural world. 2When these minerals dissolve(溶解)in water, they form what we commonly refer to as electrolytes(电解质).They allow us to perform all the “bioelectrical” functions such as moving, heart-beating, thinking, and seeing.

But pure water fails to provide these fundamental electrolytes. 3You can think of it this wayimagine a room with no gravity, split in half down the middle. You throw a couple hundred balls into the left side of the room. 4 But if you cut a bunch of holes in the barrier, they will slowly start to spread over to the right side. Eventually, they will be evenly distributed across the entire room.

The water in your organs stays at very specific levels of minerals. When you drink ultra-purified water, it pulls the minerals out of your blood just like the right side of the space room pulled some of the bouncy balls over from the left. 5

Purified water can only be recommended as a way of drawing poisons out of the body. Once this is accomplished, the continued drinking of purified water is a bad idea.

A.Purified water is an active absorber.

B.Since there's no gravity, they bounce around everywhere.

C.It actually tries to rob your body of them when you drink it.

D.Even water in the purest lakes contains small amounts of minerals.

E.If you drank enough of it, the lack of minerals would eventually kill you.

F.The simple answer is that ultra-pure water doesn't provide the natural minerals we need#

G.This is why materials tend to move from more concentrated areas to less concentrated ones.

【答案】

1F

2D

3C

4B

5E

【解析】

本文是一篇说明文,介绍了为什么喝超纯水会对身体造成危害。

1空前“So why is 100% ultra-pure water not good for us?”提到了一个问题——为什么超纯水对我们没有好处?此处是对这个问题的回答,故F项(简单的答案是,超纯水不能提供我们需要的天然矿物质)符合语境。

2根据空前的“There is no such thing as truly pure water in the natural world.”可知,自然界中没有真正纯净的水,此处是对前面的补充说明,故D项(即使在最纯净的湖泊里,水也含有少量的矿物质)符合语境。

3根据空前的“But pure water fails to provide these fundamental electrolytes.”可知,高纯水不能提供这些基本的电解质,此处承接上文,讲的是高纯水对体内电解质的危害,故C项(当你喝高纯水的时候,实际上它会把你体内的电解质夺走)符合语境。

4根据空前的“imagine a room with no gravity, split in half down the middle. You throw a couple hundred balls into the left side of the room.”可知,想象一个没有重力的房间,从中间一分为二,你把几百个球扔到房间的左边,此处承接上文,讲的是没有重力的影响,故B项(因为没有重力,它们到处弹跳)符合语境。

5根据空前的“When you drink ultra-purified water, it pulls the minerals out of your blood”可知,当你喝超纯水时,它会把你血液中的矿物质排出体外,此处总结上文,说的是缺乏矿物质对身体的不利影响,故E项(如果你喝的足够多,矿物质的缺乏最终会杀死你)符合语境。

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