10月月考阅读理解
第四部分：阅读理解（30分）
A
A: On todays Words and Their Stories we talk about a common word, a small word, but a word that is completely necessary for human life. In fact, without this simple, everyday material, all humans would die.
B: Scientists know it as sodium chloride. We know it as salt.
You may think, salt is just a simple cooking element we shake on our food for a little extra taste. But salt is much more than that.
A: Without salt our muscles would not move. Our nervous systems would not operate. Our hearts would not beat. Salt means life.
But do not think rubbing salt in a wound will help. Doing that would be painful and not heal the wound. To rub sal
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