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今天，我们一起来进行听力练习！美国VOA慢速英语栏目--健康报道称，根据《美国卫生报告》的研究，科学家发现年轻人抽电子烟其实并不安全。这份材料非常适合雅思和托福的备考，也适合基础薄弱的同学进行听写练习！

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US Health Report: E-Cigarettes/电子烟 Not Safe for Young People  >>>点击进行留学考试机构咨询

The United States’ top health official says electronic cigarettes can cause health problems for young people.

Surgeon General/卫生局局长 Vivek Murthy released/发表 his first report on e-cigarettes this week. He called the devices a public health threat to America’s youth.

The surgeon general is the U.S. government’s top medical officer. He uses scientific information to give the best advice for improving health and reducing the risk of sickness and injury.

Most electronic cigarettes use nicotine/尼古丁, a chemical found in tobacco plants/烟草, just like traditional cigarettes. But users do not light e-cigarettes because they are powered by a battery. They usually also contain flavoring/调味品 and other chemicals.             >>>点击进行留学考试咨询

E-cigarettes have increasingly grown in popularity nationwide since 2010. Officials say the devices are now the most used tobacco product by American youth and young adults.

In releasing the report, Surgeon General Murthy said the rising popularity of e-cigarettes is hurting past efforts/过去的努力 to reduce tobacco use among young people.

“It also threatens 50 years of hard-fought/努力争取来的 progress that we have made curbing/控制 tobacco use. And it places a whole new generation at risk for addiction/上瘾 to nicotine...”

He also said the new report is meant to help families and communities understand the scientific reasons why e-cigarettes are harmful.

“The message from the report is clear. Nicotine-containing products in any form, including e-cigarettes, are not safe for youth.”

The Surgeon General’s report notes that nicotine is a highly addictive/极易成瘾的 chemical. Users can develop a dependence on the drug.

The report says nicotine can harm brain development in teenagers and young adults. Murthy said those harmful effects can include deficits/减弱 in attention and learning, reduced impulse control/冲动控制, and mood disorders/情绪紊乱. 

The report notes research showing that young people who use e-cigarettes are more likely to use traditional cigarettes. It also found that chemicals sent into the air by e-cigarettes can harm the users and people around them.

Supporters of e-cigarette use have suggested that the devices can help smokers of traditional cigarettes cut back/降低 or even stop smoking. But Murthy said there is no evidence to back up/支持 this claim. He said millions more children are now being exposed/无保护的 to nicotine through e-cigarettes.  >>>点击进行留学咨询

Murthy noted that he is keeping “an open mind” to see if future evidence proves that e-cigarettes can help adults stop smoking.

The report calls for restrictions/限制 on the amount of advertising used in e-cigarette ad campaigns. It also urges/要求 national educational programs to inform young people about the risks of the devices. The surgeon general said U.S. officials need to act now to help create a healthy, tobacco-free generation.

In a public service video message, Murthy gives a strong warning to parents. “Your kids are not an experiment. Protect them from e-cigarettes.”

I'm Bryan Lynn.

Bryan Lynn wrote this story for VOA Learning English. George Grow was the editor.

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