While people around the world are talking about the prevention and treatment of AIDS, let's not【C1】______that we have had an old enemy, cancer, which【C2】______sounds horrible, but also,【C3】______to many ordinary people, appears invincible(不可战胜的). There【C4】______now both good news and bad news. The good news is that scientists【C5】______believe, based on the recent advances of modem medicine,【C6】______it is possible to tame cancer in the next decade, transforming it from a scary disease to something【C7】______a chronic(慢性的)disease, like diabetes.【C8】______no one expects a cure for cancer in the near future, but many think that the hi-tech may finally【C9】______more effective treatment, making the issue much【C10】______ The【C11】______news is,【C12】______, about the current【C13】______Cancer rates are expected to increase at an alarming rate globally,【C14】______the most recent data from the World Health Organization. In 2000, 6 million people worldwide died from cancer. A sharp increase in new cases is predicted,【C15】______from 10 million new cases worldwide in 2000 to 15 million in 2020. In China,【C16】______20 percent of all deaths are【C17】______to cancer, some 2 million people developed a malignant tumor(恶性肿瘤)in 2000,【C18】______one fifth of the world's total.【C19】______those people, 1.5 million have died, accounting for one quarter of the global mortality. There is no doubt that cancer has become a【C20】______killer of mankind. 【C1】