For years the advice has been clear: Eating five portions a day of fruit and

游客2023-09-05  16

问题     For years the advice has been clear: Eating five portions a day of fruit and vegetables is the key to a healthy life. But five may no longer be enough. A study has found that to get【B1】______defense against heart disease, you need to eat at least eight daily【B2】______ of fresh food. The Government’s five-a-day advice has its【B3】______in World Health Organization guidelines to include 14 ounces of vegetables in a daily diet. But there have been doubts over whether eating more than this level of fruit and vegetable meant even greater health【B4】______. Now the new study suggests every extra portion provides added protection.
   【B5】______, those in the highest category—eating eight or more a day—have a 22【B6】______lower chance of dying from heart disease than those who【B7】______three portions, the UK average. A "portion"【B8】______just under three ounces, equal to a small banana, a medium apple or a small carrot.【B9】______
    Dr. Francesca Crowe of Oxford University is working on the project. She said that although ischaemic (缺血性的) heart disease(IHD)—the most common form—【B10】______.
    In spite of these things, the study specifically showed【B11】______, which was those who ate two or fewer portions. [br] 【B1】

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解析 语义推断题。空格后是名词,所以空格处应该填人形容词。根据宾语从句后半部分句意“只有每天至少吃八份新鲜食品才能预防心脏病”,可以推测修饰“预防”的形容词应该具有“最好的,最有效的。最大限度的”之意。结合录音,不难填人maximum。
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