【正文】 . [D] Different Humor Strategies. The Supreme Court39。t call those deaths homicides because the doctors didn39。t intend their suicide. On another level, many in the medical munity acknowledge that the assistedsuicide debate has been fueled in part by the despair of patients for whom modem medicine has prolonged the physical agony of dying. Just three weeks before the Court39。s medication is no longer justified by his intentions. 58. According to the NAS39。 and the profit motive, operating under petitive pressures, largely determines how these goods and services are produced. Thus, in the American economic system it is the demand of individual consumers, coupled with the desire of businessmen to maximize profits and the desire of individuals to maximize their ines, that together determine what shall be produced and how resources are used to produce it. An important factor in a marketoriented economy is the mechanism by which consumer demands can be expressed and responded to by producers. In the American economy, this mechanism is provided by a price system, a process in which prices rise and fall in response to relative demands of consumers and supplies offered by seller producers. If the product is in short supply relative to the demand, the price will be bid up and some consumers will be eliminated from the market. If, on the other hand, producing more of a modity results in reducing its cost, this will tend to increase the supply offered by sellerproducers. which in turn will lower the price and permit more consumers to buy the product. Thus, price is the regulating mechanism in the American economic system. The important factor in a privateenterprise economy is that individuals are allowed to own productive resources (private property), and they are permitted to hire labor, gain control over natural resources, and produce goods and services for sale at a profit. In the American economy, the concept of private property embraces not only the ownership of productive resources but also certain rights, including the right to determine the price of a product or to make a free contract with another private individual. 51. In Line 7, Para. 1, the desire of individuals to maximize their ines means ________. [A] Americans are never satisfied with their ines [B] Americans tend to overstate their ines [C] Americans want to have their ines increased [D] Americans want to increase the purchasing power of their ines 52. The first two sentences in the second paragraph tell us that ________. [A] producers can satisfy the consumers by mechanized production [B] consumers can express their demands through producers [C] producers decide the prices of products [D] supply and demand regulate prices 53. According to the passage, a privateenterprise economy is characterized by ________. [A] private property and rights concerned [B] manpower and natural resources control [C] ownership of productive resources [D] free contracts and prices 54. The passage is mainly about ________. [A] how American goods are produced [B] how American consumers buy their goods [C] how American economic system works [D] how American businessmen make their profits 中國最大的管 理 資料下載中心 (收集 \整理 . 大量免費資源共享 ) 第 8 頁 共 20 頁 Passage 5 Rumor has it that more than 20 books on creationism/evolution are in the publisher39。t realize that familiar substances such as alcohol and tobacco are also drugs. This is why the more neutral term substance is now used by many physicians and psychologists. The phrase substance abuse is often used instead of drug abuse to make clear that substances such as alcohol and tobacco can be just as harmfully misused as heroin and cocaine. We live in a society in which the medicinal and social use of substances (drugs) is pervasive: an aspirin to quiet a headache, some wine to be sociable, coffee to get going in the morning, a cigarette for the nerves. When do these socially acceptable and apparently constructive uses of a substance bee misuses? First of all, most substances taken in excess will produce negative effects such as poisoning or intense perceptual distortions. Repeated use of a substance can also lead to physical addiction or substance dependence. Dependence is marked first by an increased tolerance, with more and more of the substance required to produce the desired effect, and then by the appearance of unpleasant withdrawal symptoms when the substance is discontinued. Drugs (substances) that affect the central nervous system and alter perception, mood, and behavior are known as psychoactive substances. Psychoactive substances are monly grouped according to whether they are stimulants, depressants, or hallucinogens. Stimulants initially speed up or activate the central nervous system, whereas depressants slow it down. Hallucinogens have their primary effect on perception, distorting and altering it in a variety of ways including producing, hallucinations. These are the substances often called psychedelic (from the Greek word meaning mindmanifesting) because they seemed to radically alter one39。s useless. The most obvious example is latestage cancer care. Physiciansfrustrated by their inability to cure the disease and fearing loss of hope in the patienttoo often offer aggressive treatment far beyond what is scientifically justified. In 1950, the . spent $ billion on health care. In 20xx, the cost will be $1540 billion. Anyone can see this trend is unsustainable. Yet few seem willing to try to reverse it. Some scholars conclude that a government with finite resources should simply stop paying for medical care that sustain