2014英语四级听力练习慢速4.15(2)_大学英语听力

2014英语四级听力练习慢速4.15(2)

　　One device that has become popular among people trying to quit smoking is the electronic cigarette, known as an e-cigarette. E-cigarettes are battery-operated devices that look like a real cigarette. The smoker places a regulated amount of nicotine into the device. As they smoke, a watery substance called vapor releases from the device. Because the vapor does not release the same harmful chemicals as cigarette smoke, the device is permitted in places that normally ban smoking.

　　However, there are campaigns to ban e-cigarettes and change legislation linked to the device. In February, the European Parliament approved new rules on e-cigarettes that member nations must approve. The European Commission says the rules will go into effect in May of . They include banning advertisements for e-cigarettes, placing health warnings similar to those on cigarettes on the packages, and limiting the amount of nicotine that could be placed in the devices.

　　The New York Times newspaper reports that the U.S. Food and Drug Administration is also looking into new rules and regulations on the devices. However, the agency says there is not enough evidence or research to say e-cigarettes are good or bad for your health. Nor will the agency agree with the debate that e-cigarettes increase young peoples desire to try other tobacco related products.

　　Researchers at the Center for Tobacco Control Research and Education at the University of California studied the link between the e-cigarette and real tobacco use. Stan Glantz is the director of the center. He says there is evidence the device helps a small number of adults stop smoking. But, he says, it is not the same with younger people. Mr. Glantz and other researchers completed a study with nearly 76,000 Korean teenagers. They found that the e-cigarette did not help the young Koreans quit smoking, but instead made them heavier smokers.