单项选择题

Technically, any substance other than food that alters our bodily or mental functioning is a drug. Many people mistakenly believe the term drug refers only to some sort of medicine or an illegal chemical taken by drug addicts. They don’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 become 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 commonly 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" mind-manifesting" ) because they seemed to radically alter one’s state of consciousness. The word" pervasive’’ ( Line 1, Paragraph 2) might mean___________.

A．widespread
B．overwhelming
C．piercing
D．fashionable

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单项选择题

According to the passage, which of the following is TRUE

A．Making monetary policies is comparable to driving a car.
B．An extremely low jobless rate will lead to inflation.
C．A high unemployment rate will result from inflation.
D．Interest rates have an immediate effect on the economy.

填空题

Do animals have rights This is how the question is usually put. It sounds like a useful, ground- clearing way to start. 71. Actually, it isn’’t, because it assumes that there is an agreed account of human fights, which is something the world does not have.On one view of rights, to be sure, it necessarily follows that animals have none. 72. Some philosophers argue that rights exist only within a social contract, as part of an exchange of duties and entitlements. Therefore, animals cannot have rights. The idea of punishing a tiger that kills somebody is absurd ,for exactly the same reason, so is the idea that tigers have rights. However, this is only one account ,and by no means an uncontested one. It denies rights not only to animals but also to some people―for instance, to infants, the mentally incapable and future generations. In addition, it is unclear what force a contract can have for people who never consented to it: how do you reply to somebody who says I don’’t like this contract The point is this: without agreement on the rights of people, arguing about the rights of animals is fruitless. 73. It leads the discussion to extremes at the outset: it invites you to think that animals should be treated either with the consideration humans extend to other humans, or with no consideration at all. This is a false choice. Better to start with another, more fundamental, question: is the way we treat animals a moral issue at allMany deny it. 74. Arguing from the view that humans are different from animals in every relevant respect, extremists of this kind think that animals lie outside the area of moral choice. Any regard for the suffering of animals is seen at a mistake―a sentimental displacement of feeling that should properly be directed to other humans.This view, which holds that torturing a monkey is morally equivalent to chopping wood, may seem bravely logical . In fact it is simply shallow: the confused centre is right to reject it. The most elementary form of moral reasoning―the ethical equivalent of learning to crawl―is to weigh other’’s interests against one’’s own. This in turn requires sympathy and imagination: without which there is no capacity for moral thought. To see an animal in pain is enough, for most, to engage sympathy. 75. When that happens, it is not a mistake: it is mankind’’s instinct for moral reasoning in action, an instinct that should be encouraged rather than laughed at.