基础英语轻松学【15】喝出健康来
<p> 本课您将学到：定语从句中<span word="that">that</span>的省略，非限定性定语从句</p><p> 你最喜欢的饮品是什么？（<span word="Whats">Whats</span> <span word="your">your</span> <span word="favorite">favorite</span> <span word="drink">drink</span>?）碳酸饮料、酒、果汁现代人的选择真是太丰富了。今天大妮子要给大家推荐一种廉价又有益健康的饮品，它产自中国，风靡全球，对了，就是茶。</p><p> 当你拿起紫砂壶，为自己斟上一杯清茶时，可曾想过它最早是被谁怎样发现的？</p><p> <span word="Tea">Tea</span> <span word="has">has</span> <span word="a">a</span> <span word="history">history</span> <span word="that">that</span> <span word="goes">goes</span> <span word="back">back</span> <span word="to">to</span> 2737<span word="B">B</span>.<span word="C">C</span>. <span word="A">A</span> <span word="story">story</span> <span word="says">says</span> <span word="that">that</span> <span word="the">the</span> <span word="Chinese">Chinese</span> <span word="emperor">emperor</span>（皇帝） <span word="Shen">Shen</span>-<span word="Nung">Nung</span>（神农） <span word="discovered">discovered</span> <span word="tea">tea</span> <span word="when">when</span> <span word="leaves">leaves</span>（树叶） <span word="from">from</span> <span word="a">a</span> <span word="tea">tea</span> <span word="bush">bush</span>（灌木丛） <span word="fell">fell</span> <span word="into">into</span> <span word="some">some</span> <span word="water">water</span> <span word="he">he</span> <span word="was">was</span> <span word="boiling">boiling</span>（煮）.</p><p> 这个偶然的发现造福了全世界的人。</p><p> 许多人都知道喝茶对人体健康有益，可是这有什么科学根据呢？</p><p> <span word="One">One</span> <span word="of">of</span> <span word="the">the</span> <span word="reasons">reasons</span> <span word="tea">tea</span> <span word="is">is</span> <span word="so">so</span> <span word="healthy">healthy</span> <span word="is">is</span> <span word="that">that</span> <span word="it">it</span> <span word="has">has</span> <span word="antioxidants">antioxidants</span>（抗氧化剂）, <span word="which">which</span> <span word="work">work</span> <span word="against">against</span> <span word="illnesses">illnesses</span> <span word="caused">caused</span> <span word="by">by</span> <span word="aging">aging</span> <span word="such">such</span> <span word="as">as</span> <span word="cancer">cancer</span>（癌症）, <span word="heart">heart</span> <span word="disease">disease</span>, <span word="and">and</span> <span word="diabetes">diabetes</span>（糖尿病）. <span word="Scientific">Scientific</span> <span word="studies">studies</span> <span word="show">show</span>（指出） <span word="that">that</span> <span word="tea">tea</span> <span word="not">not</span> <span word="only">only</span> <span word="lowers">lowers</span>（降低） <span word="the">the</span> <span word="risk">risk</span>（风险） <span word="of">of</span> <span word="getting">getting</span> <span word="cancer">cancer</span>, <span word="but">but</span> <span word="it">it</span> <span word="also">also</span> <span word="decreases">decreases</span>（减少） <span word="the">the</span> <span word="risk">risk</span> <span word="of">of</span> <span word="dying">dying</span> <span word="from">from</span> <span word="heart">heart</span> <span word="disease">disease</span> <span word="in">in</span> <span word="people">people</span> <span word="who">who</span> <span word="drink">drink</span> <span word="four">four</span> <span word="or">or</span> <span word="more">more</span> <span word="cups">cups</span> <span word="a">a</span> <span word="day">day</span>.</p><p> 此外，饮茶还可以改善女性的生育力（<span word="fertility">fertility</span>），调查显示每天喝半杯茶的女性和那些从来不喝茶的女性相比较，前者的怀孕（<span word="pregnant">pregnant</span>）几率是后者的两倍。如果你还不想当妈妈，那么茶还可以帮助你保持美好身材，因为它的主要成分是水，而且热量也很低，所以赶快用茶来代替那些含糖的饮料吧！</p>
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