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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A. It sounds too good to be true. B. However, nobody is "perfectly fluent" in any language. C. Quick fluency is good if you have some sort of deadline. D. But have you ever considered what fluency really means? E. But does fluency have the same meaning to other person as it does to you? F. Unlike perfect fluency, native-like fluency is a reasonable and attainable goal. G. To assist you in determining what fluency is, I'll describe a few different types of fluency. |
You might dream of fluency in this or that language, and maybe you have already achieved fluency in a foreign language. {#blank#}1{#/blank#}
Fluency, like all abstract terms, has no universal meaning. Each individual must determine what the term means. {#blank#}2{#/blank#}
Perfect fluency means knowing each word you encounter, speaking quickly, clearly and easily and having no accent. {#blank#}3{#/blank#} You aren't familiar with every word of your native language, and sometimes you have to search for the right word, even in your mother tongue.
Quick fluency is the type of fluency you see in advertisements, because "Master a Language in 2 Months!" sounds very catchier than "Fluency in 20 Years!" {#blank#}4{#/blank#} It is possible to achieve quick fluency, but the fluency achieved after such a short time frame will be a very thin, superficial fluency.
{#blank#}5{#/blank#} Native-like fluency means that you generally know all the same words that a native knows and can speak at the same pace with the same amount of ease as a native speaker. You will likely have an accent, but as long as your conversation partner can understand you, it doesn't matter.
Literary fluency is like graduating from native-like to educated-native-like fluency. It focuses on the more intellectual side of a language: including in literature, attending university, composing song lyrics, etc.
There are a ton of other things that fluency could potentially be, but that's up to you to figure out.
试题篮
beginners talked with technical experts about what they needed to know to preserve and make available their movie collections. {#blank#}4{#/blank#}