摘要： SpecialEnglish/2009/January/spec2345a0113.htm Health experts say cancer will become the leading cause of death in the world by the year two thousand ten. The number of people who die from cancer will soon be greater than deaths from AIDS and malaria combined. The experts say more people will die from cancer than heart disease, the current leading killer. One reason for the growing deadliness of cancer is more people smoking cigarettes in developing countries. Other things are believed to be closely related to the death. They include high fat diets, fast food meals and reduced physical activity. The American Cancer Society says governments can do things to help prevent the increase in cancer cases and deaths. One idea is to provide poor and developing nations with vaccines that help to prevent some cancer-causing infections. Another suggestion is more support for tobacco-control programs. And the Cancer Society also says health officials and governments should invest in cancer research and early detection. An American study has shown a link between tobacco smoke and behavioral problems in boys with asthma. To be considered for the study, children were supposed to be close to cigarette smoke at least five times a day. His study found the girls were breathing in more tobacco smoke than the boys. But there was no increase in behavioral problems among the girls. For the boys, the results were different. The more contact the boys had with tobacco smoke the more likely they were to have recognizable behavior problems. The boys also were more likely to have signs of emotional problems like anxiety and depression. Their findings show that even low levels of smoke may cause behavior problems in children with asthma or others at risk. Kimberly Yolton was the lead writer of the report. She says there is no information to explain in detail why tobacco smoke causes behavioral problems in children with asthma. But she says there is much evidence that nicotine in tobacco smoke affects the nervous system, and child development and behavior. Cancer to Become World's Leading Killer Theme Cancer makes more people (1) in the world than other diseases. (2) for the phenomenon ▲More people (3) cigarettes in developing countries. ▲Other things like high fat diets have (4) to do with people’s health. Two (5) for governments They should: ▲(6) poor and developing nations vaccines that help to prevent some cancer-causing infections. ▲(7) tobacco-control programs more and (8) in cancer research and early detection. Results of the Experiment ▲Behavior problems in children with asthma or others at risk can be (9) by low levels of smoke. ▲Nicotine in tobacco smoke has a clear(10) on the nervous system, and child development and behavior. Key: smoke suggestions support caused (10) effect/influence/impact

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