题目

阅读理解 The Healthiest Tea for You Aside from plain water, tea is the most popular drink in the world. And that's a good thing: research suggests that drinking tea is good for our health. Different types of tea offer different health benefits. Here, we compare the benefits of four common teas. Black Tea Black tea leaves are exposed to moist, oxygen-rich air and are rolled or crushed to release an enzyme(酶), giving rich flavor and color. Lots of people in the US drink it either hot or cold. Drinking it regularly is helpful to strengthen your bones. Green Tea Made from the same leaves as black tea but steamed to prevent oxidation(氧化), green tea has long been celebrated for its health properties, Its plentiful amount of catechin(儿茶酸) can boost mental alertness, and even raise your metabolic(代谢的) rate so that you burn more calories. Some data suggests that green tea can also reduce blood pressure, and so lowers your risk of heart attack or stroke. Oolong Tea This tea is made from the same leaves as green tea and black tea, but oolong leaves are partially dried and then rolled gently to allow partial oxidation. This process can give oolong a yellow-green color. Oolong tea has a type of antioxidant called theasinensins, which may reduce inflammation(炎症) and offer some immune system protection. White Tea White tea is made from young tea leaves that arc rapidly steamed and dried right alter picking. This stops those leaves from browning. A benefit of drinking this tea is that it bas more catechin than other types of tea, which may help keep blood vessels open, as well as help the body break down fat. （1） What's special about black tea? A . It may make bones strong. B . It lowers risks of stroke. C . It reduces blood pressure. D . It keeps blood vessels open. （2） Which tea may be helpful to reduce inflammation? A . Black tea. B . Green tea. C . Oolong tea. D . White tea. （3） What do the four types of tea have in conmon? A . They are processed alike. B . They are equally popular. C . They are completely oxidated. D . They offer hcalth benefits. 答案： A C D

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