02 阅读理解考前冲刺练(说明文)-决战2023年新高考英语，三年真题研读暨考前冲刺练

01-2阅读理解考前冲刺练(说明文)-决战2023年新高考 (题目序号仿新高考I卷阅读理解B篇) Passage 1 (2023·重庆统考模拟预测)Are you among the one in three Americans who gulps down a multivitamin every morning, probably with a sip of water? The truth about this popular habit may be hard to swallow. “Most people would be better off just drinking a full glass of water and skipping the vitamin,” says Dr. Pieter Cohen, an associate professor of medicine at Harvard Medical School. In addition to saving money, you’ll have the satisfaction of not succumbing to misleading marketing strategies. That’s because for the average American adult, a daily multivitamin doesn’t provide any meaningful health benefit, as noted recently by the US Preventive Services Task Force(USPSTF). Their review, which analyzed 84 studies involving nearly 700,000 people, found little or no evidence that taking vitamin and mineral supplements(营养片)helps prevent cancer and cardiovascular disease that can lead to heart attacks, nor do they help prevent an early death. However, this is not always the case. Highly restrictive diets, or certain weight-loss surgeries that cause poor nutrient absorption are examples of reasons why a multivitamin or individual vitamins might be recommended. A daily vitamin D supplement may be necessary when a person gets insufficient sun exposure. Your doctor may recommend an iron supplement if you have anemia, a low red blood cell count. Then why do people place too much reliance on vitamins? “They are very inexpensive to make, so the companies can sink lots of money into advertising,” says Dr. Cohen. But because the FDA regulates dietary supplements as food and not as prescription(处方药)or over-the-counter drugs, the agency only closely monitors claims regarding the treatment of disease. For example, supplement makers cannot say that their product “lowers heart disease risk”. But their labels are allowed to include phrases such as “promotes a healthy heart” or “supports immunity”, as well as vague promises about improving fa