单选题The science of medicine, ______ progress has been very rapid lately, is perhaps the most important of all sciences.

单选题After the talk, both sides agreed to draw________a formal agreement.

单选题They were seriously______in an accident because they drove too fast.

单选题根据下面资料，回答21-35题。In the past， I always thought that being a teacher was an easy job. But I changed my（21）when I became a part-time teacher. About four years ago， Richard asked me（22）I could help teach

单选题 Now listen to the following recording and answer questions16-18.

单选题They had planned to go outing this weekend, but they finally had to ______ it because of the rainy weather.

单选题I would never have believed it was possible if I ______ it with my own eyes.

单选题The writer believes that before long ______.

单选题On a small farm in a dry climate one should not grow crops that need ______ space and a lot of water to ripen.

单选题Both companies are very famous in the local region; of which the former is a joint venture and the ______ is state-owned. A. late B. latter C. later D. lately

单选题Having a few too many drinks can mean more than just a blackout or a bad hangover. People who engage in binge drinking are courting danger, experts warn. Binge drinking is most common at colleges and universities, where many adults treat drinking to excess as a rite of passage. A 1997 study from the Harvard School of Public Health reports that 42.7% of all college students engage in binge drinking. The well-publicized deaths of several college students from binge drinking in 1997 highlights the risks. An 18-year-old freshman at the Massachusetts Institute of Technology drank himself into a coma and died. A 20-year-old fraternity pledge at Louisiana State University died from alcohol poisoning. "Alcohol is always toxic. It"s really a poison," said Steven Schandler, professor of psychology at Chapman University and chief of addiction research at the Long Beach Veterans Affairs Health Care System, who added that binge drinking can lead to alcohol poisoning. "Because it"s a poison, like any other poison, if you take in a little bit, you might tolerate it, but if you take in a lot, you might die." Administrators and doctors say that college freshmen are especially at risk for alcohol poisoning, in part because they often lack the maturity to refrain or stop. And for some who may be new to drinking, their bodies have a relatively low tolerance for alcohol. But problems with alcohol aren"t limited to teenagers and young adults. A 39-year-old Buena Park man recently recalled that two days of steady imbibing on a trip to Las Vegas several years ago left him in bad shape. Doctors say blood alcohol levels of about 4%—five times the legal intoxication limit of 0.8%—can induce potentially lethal side effects in most people. Alcoholics have higher limits. Although not well understood, enzymes that break down and expel alcohol in the liver and kidneys do so more effectively in seasoned drinkers, allowing them to tolerate more, Schandler said. Regardless of a person"s tolerance, alcohol exerts its influence when the amount of alcohol taken in exceeds the amount that the body can digest. At that point, alcohol passes from the bloodstream into the brain and begins its attack. Alcohol first affects the brain"s cortex, which controls more sophisticated thought processes. That"s why people generally become less inhibited under the influence of alcohol, and some are more willing to try things that could be dangerous to themselves or others. Coordination, mainly controlled by the cerebellum, is the next to go, leading to slurred speech and difficulty walking in a straight line. As excessive drinking continues, alcohol moves deeper into the brain until "it gets to the very basic structure of the brain stem that affects things like respiration and heart beat," said Dr. Bret Ginther, an assistant clinical professor of emergency medicine at UC Irvine. At that point, people may pass out or fall into a coma. Their vital signs may weaken. "The most common cause of death from alcohol poisoning is respiratory arrest," said Ginther. Eventually, the heart simply stops. Getting to that point is fairly unusual. But Ginther said that at least once or twice a month, patients are brought into the emergency room at UCI Medical Center in Orange suffering from alcohol poisoning. College officials say they are always on the lookout for alcohol abuse but say there is no fail-safe method to keep students from drinking. Many colleges try to educate students, especially those caught drinking illegally or causing disruptions. The Higher Education Center for Alcohol and Other Drug Prevention in Newton, Mass, advocates a community-based approach that includes administrators, faculty, police and businesses in the fight to curb binge drinking, in part by being on alert for people abusing alcohol. The center also stresses the importance of parental guidance and urges parents to have frank discussions with their children about excessive drinking.

单选题The fire burned ______.

单选题The schools ______ black children went were simply not good enough.

单选题The bad weather__________the building program by several weeks.

单选题______ the writer's craft through a consideration of rhetorical patterns is a useful way to study writing.

单选题He ______the job because it involved too much traveling. A.took up B.applied for C.turned down D.switched to

单选题{{B}}Text 4{{/B}} Euthanasia is clearly a deliberate and intentional aspect of a killing. Taking a human life, even with subtle rites and consent of the party involved is barbaric. No one can justly kill another human being. Just as it is wrong for a serial killer to murder, it is wrong for a physician to do so as well, no matter what the motive for doing so may be. Many thinkers, including almost all orthodox Catholics, believe that euthanasia is immoral. They oppose killing patients in any circumstances whatever. However, they think it is all right, in some special circumstances, to allow patients to die by withholding treatment. The American Medical Association's policy statement on mercy killing supports this traditional view. In my paper "Active and Passive Euthanasia" I argue, against the traditional view, that there is in fact no normal difference between killing and letting die--if one is permissible, then so is the other. Professor Sullivan does not dispute my argument; instead he dismisses it as irrelevant. The traditional doctrine, he says, does not appeal to or depend on the distinction between killing and letting die. Therefore, arguments against that distinction "leave the traditional position untouched." Is my argument really irrelevant? I don't see how it can be. As Sullivan himself points out, nearly everyone holds that it is sometimes meaningless to prolong the process of dying and that in those cases it is morally permissible to let a patient die even though a few more hours or days could be saved by procedures that would also increase the agonies of the dying. But if it is impossible to defend a general distinction between letting people die and acting to terminate their lives directly, then it would seem that active euthanasia also may be morally permissible. But traditionalists like professor Sullivan hold that active euthanasia--the direct killing of patients--is not morally permissible; so, if my argument is sound, their view must be mistaken. I can not agree, then, that my argument "leave the traditional position untouched." However, I shall not press this point. Instead I shall present some further arguments against the traditional position, concentrating on those elements of the position which professor Sullivan himself thinks most important. According to him, what is important is, first, that we should never intentionally terminate the life of a patient, either by action or {{U}}omission{{/U}}, and second, that we may cease or omit treatment of a patient, knowing that this will result in death, only if the means of treatment involved are extraordinary.

单选题During the normal development of self, a child is affected by certain influential factors. 1 infants form an attachment with the mother that must undergo a process of separation and individuation. Object relations psychology examines this relationship, which depends on the ability of the child to separate himself from his object, the mother, and realize that he is a separate individual. 2 Certainly, affectionate, caring parents are essential as well. As the child begins to develop his sense of self, he must master certain developmental tasks that are part of growing up, such as acquisition of language and toilet training. 3 4 Since an infant"s relationship with his mother is so important, according to many psychologists, what effect does being separated from the biological mother have on the adopted child? 5 But what about a child who is older when he is adopted? 6 When he is placed with an adoptive family, he is likely to experience separation anxiety from his foster mother, who can be regarded as symbolically abandoning him as his own biological mother did. 7 Now it seems as though he has to start over; his protesting may give way to despair as he yearns for people who used to be in his life. The adoptive family should offer as much affection and security as possible to reassure the child that he is safe, that they are reliable sources of loving care, and that they will help him through this difficult stage. 8 Although he may not mind the actual separation from his mother when he goes to playschool or day care, he may become obsessed about the time when his mother is supposed to pick him up at day care or kindergarten; tardiness may provoke fears about car accidents or death. On the other hand, some psychologists believe that a child who is given more affection is sometimes more strongly attached to their parents and therefore more prone to separation anxiety than are some of those who are treated more roughly. 9 On the contrary, the capacity to experience separation anxiety can be regarded as a sign of the healthy personality. 10 [A] A safe, loving environment is another necessary component for the development of a healthy self-concept. [B] For infants adopted at birth, the effect may be minimal, for the infant has often had no opportunity to bond with the biological mother. [C] Since such "dependence" in the well-loved child is outgrown and later provides the basis for a stable independence, it would be a mistake to suppose it to be pathological. [D] One of the most important involves his relationship with his mother. [E] What, then, effect does adoption have on the development of a healthy sense of sel~ [F] His transition to living in an adoptive home may be difficult as he adjusts to new surroundings and caregivers because, by the age of 18 months, he has already begun to develop a sense of self in relation to others. [G] Despite these actions, sometimes a child may continue to suffer from separation anxiety. [H] Anything that interrupts the development of these important skills may interfere with developing a healthy self-concept. [I] Consider a toddler adopted at the age of 18 months who has lived in the same foster home since birth. [J] An adopted child, then, has at least an average chance of successful individuation, assuming he is adopted by loving parents.