题型：任务型阅读 题类：常考题 难易度：普通
广东省湛江市2020届高三上学期英语9月调研试卷
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?
There is no such thing as truly pure water in the natural world. When 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. You can think of it this way: 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. 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.
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.
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