单选题The interpreters rely on adrenaline because ______.

单选题{{I}}Questions 14～17 are based on the following dialogue on traveling.{{/I}}

单选题{{B}}{{I}}Questions 11～13 are based on the following dialogue between two colleagues.{{/I}}{{/B}}

单选题 {{I}} Questions 22 ～ 25 are based on the following monologue about the generation gap.{{/I}}

单选题Liz won't be at work next week—______a well-earned break. [A] she has had [B] she had [C] she was having [D] she is having

单选题It is implied that a man can reduce his chance of committing suicide if he ______.

单选题Whatdoesthewomanwantthemantodo?[A]Helpwiththecooking．[B]Tellherthetime．[C]Laythetable．[D]Watchnews．

单选题{{B}}Part A{{/B}}{{I}} You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer—A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE.{{/I}}

单选题Judith Sargeant Murray's position can be best expressed by______.

单选题 Scientists are learning more about our need for sleep. Most people sleep{{U}} (26) {{/U}}eight hours each night.{{U}} (27) {{/U}}people sleep more than{{U}} (28) {{/U}}and others sleep as{{U}} (29) {{/U}}as two or three hours each night. Scientists do not know exactly{{U}} (30) {{/U}}some people sleep more than others. Dr. Ernest Hartman has a (an){{U}} (31) {{/U}}about this. He believes that the{{U}} (32) {{/U}}of sleep depends on how a person{{U}} (33) {{/U}}problems. He said people who need only a few{{U}} (34) {{/U}}sleep usually are people who have much energy and make good use of{{U}} (35) {{/U}}to get their work to be done quickly.{{U}} (36) {{/U}}he said many people who sleep longer than normal do creative work and seem to need{{U}} (37) {{/U}}dreaming time to find solution{{U}} (38) {{/U}}emotional problems. Some scientists agree{{U}} (39) {{/U}}this idea and others dispute. To determine the{{U}} (40) {{/U}}of the lack of sleep, scientists have put{{U}} (41) {{/U}}through a set of psychological and performance tests{{U}} (42) {{/U}}them, for instance, to add columns of numbers or recite a passage read to them only minutes earlier, "We've found that if you're in sleep{{U}} (43) {{/U}}, performance suffers," says Dr. David. "Short-term memory is{{U}} (44) {{/U}},{{U}} (45) {{/U}}are abilities to make decisions and to concentrate."

单选题 Questions 5 to 7 are based on the following conversation.

单选题{{B}} Directions:{{/B}} You are going to hear four conversations. Before listening to each conversation, you will have 5 seconds' to read each of the questions which accompany it. After listening, you will have time to answer each question by choosing A, B, C or D. You will hear each conversation ONLY ONCE. Mark your answers in your test booklet. {{B}} Questions 11 ～ 15 are based on the following conversation.{{/B}}

单选题The United States is a confederation of states．Each state has the (26) to make laws with regard to the state． (27) , based on public opinion，states can (28) policies regarding education, and they may (29) a state income tax; they also determine the speed (30) , housing codes and the drinking age． In most parts of the United States, you (31) be 21 years old to buy alcohol in a liquor store, bar (32) restaurant．In some states you may buy beer in a grocery store．If a store sells alcohol to a minor,the (33) of the store is usually (34) a large sum of money． (35) many areas have an open-container law, (36) means that people may not drink alcohol on the street or in a car．Anyone (37) with an open container of alcohol may be arrested． (38) with all these laws, the (39) of alcohol is a serious (40) in the United States and Canada．Drinking on college campuses, (41) there are many underage drinkers, has (42) greatly．In fact, alcohol sales have gone up (43) the legal drinking age was (44) from 18 to 21．Some people believe that if there were no legal drinking age, (45) in some other countries, North American youth would drink less．

单选题Centuries ago, man discovered that removing moisture from food helps to preserve it, and that the easiest way to do this is to expose the food to sun and wind. All foods contain water— cabbage and other leaf vegetables contain as much as 93% water, potatoes and other root vegetables 80%, lean meat 75% and fish anything from 80% to 60% depending on how fatty it is. If this water is removed, the activity of the bacteria (细菌) which cause food to go bad is checked. Nowadays most foods are dried mechanically. The conventional method of such dehydration (脱水) is to put food in chambers through which hot air is blown at temperatures of about 110℃ at entry to about 43℃ at exit. This is the usual method for drying such things as vegetables, minced meat, and fish. Liquids such as milk, coffee, tea, soups and eggs may be dried by pouring them over a heated horizontal steel cylinder or by spraying them into a chamber through which a current of hot air passes. In the first case, the dried material is scraped off the roller as a thin film which is then broken up into small, though still relatively coarse flakes. In the second process it falls to the bottom of the chamber as a fine powder. Dried foods take up less room and weight less than the same food packed in cans or frozen, and they do not need to be stored in special conditions. For these reasons they are invaluable to climbers, explorers and soldiers in battle, who have little storage space. They are also popular with housewives because it takes so little time to cook them.

单选题Every newborn baby is dealt a hand of cards which helps to determine how long he or she will be allowed to play the game of life. Good cards will help those who have them to have a long and healthy existence, while bad cards will bring to those who have them terrible diseases like high blood pressure and heart disease. Occasionally, cards are dealt out that doom their holders to an early death. In the past, people never knew exactly which cards they had been dealt. They could guess at the future only by looking at the kind of health problems experienced by their parents or grandparents. Genetic testing, which makes it possible to find dangerous genes, has changed all this. But, until recently, if you were tested positive for a bad gene you were not obliged to reveal this to anyone else except in a few extreme circumstances. This month, however, Britain became the first country in the world to allow life insurers to ask for test results. So far, approval has been given only for a test for a fatal brain disorder known as Huntington''s disease. But ten other tests (for seven diseases) are already in use and are awaiting similar approval. The independent body that gives approval, the Department of Health''s genetics and insurance committee, does not have to decide whether the use of genetic information in insurance is ethical. It must judge only whether the tests are reliable to insurers. In the case of Huntington''s disease the answer is clear-cut. People unlucky enough to have this gene will die early, and cost life insurers dearly. This is only the start. Clear-cut genetic answers, where a gene is simply and directly related to a person''s risk of death, are uncommon. More usually, a group of genes is associated with the risk of developing a common disease, dependent on the presence of other genetic or environmental factors. But, as tests improve, it will become possible to predict whether or not a particular individual is at risk. In the next few years researchers will discover more and more about the functions of individual genes and what health risks — or benefits — are associated with them.

单选题According to the passage people Who have experienced ups and downs may become______ .