【正确答案】
C
【答案解析】[听力原文]
This year, the United States marked the 50th anniversary of the government's first report on smoking and health. Then Surgeon General—Luther Terry—wrote that first report. It linked cigarettes to lung cancer and heart disease. {{U}}The year was 1964. At that time, more than 40 percent of Americans smoked. Today, about 18 percent are smokers{{/U}}.
The report led to anti-smoking measures, including a requirement to place warnings on cigarette packages. The government also banned television and radio advertisements for cigarettes.
American medical researchers say anti-smoking measures have saved 8 million American lives since 1964. {{U}}But cigarette smoking still kills about 443,000 Americans every year{{/U}}.
Dr. Joanna Cohen heads the Global Tobacco Initiative at the Johns Hopkins School of Public Health. She says the surgeon general's report has had a real effect on Americans.
"And it really led to a reduction in use and a great increase in the knowledge of the harmful effects of tobacco products."
{{U}}In the United States, laws now restrict tobacco use, including the sale of cigarettes to individuals under the age of 18{{/U}}. Laws also protect non-smokers from breathing smoke-filled air. Many cities have banned smoking in public spaces like restaurants, bars and even outdoor areas. {{U}}Anyone visiting New York City's famous Central Park may receive a fine for lighting up a cigarette{{/U}}.
The medical community has repeatedly reported reasons why smokers should stop. A new report by the acting surgeon general says recent findings show that smoking is even worse than people believe it to be. Boris Lushniak says smoking is linked to colon, rectal and liver cancers.
What's the percentage of people smoking now?
[解析] 信息理解题。在1964年有超过40％的美国人抽烟，而如今有大约18％的美国人抽烟。故选C。