【正文】 s potential was only 1,100. Israel had 460. Jordan had a meager 260. But these are not firm figures, because upstream use of river water can dramatically alter the potential downstream.　　Scarcity is only one element of the crisis. Inefficiency is another, as is the reluctance of some waterpoor nations to change priorities from agriculture to less waterintensive enterprises. Some experts suggest that if nations would share both water technology and resources, they could satisfy the region39。s health. Day and night, at home, at work, and at play, noise can produce serious physical and psychological stress. No one is immune to this stress. Though we seem to adjust to noise by ignoring it, the ear, in fact, never closes and the body still responds—sometimes with extreme tension, as to a strange sound in the night.　　The annoyance we feel when faced with noise is the most mon outward symptom of the stress building up inside us. Indeed, because irritability is so apparent, legislators have made public annoyance the basis of many noise abatement(消除) programs. The more subtle and more serious health hazards associated with stress caused by noise traditionally have been given much less attention. Nevertheless, when we are annoyed or made irritable by noise, we should consider these symptoms fair warning that other things may be happening to us, some of which may be damaging to our health.　　Of the many health hazards related to noise, hearing loss is the most clearly observable and measurable by health professionals. The other hazards are harder to pin down. For many of us, there may be a risk that exposure to the stress of noise increases susceptibility to disease and infection. The more susceptible among us may experience noise as a plicating factor in heart problems and other diseases. Noise that causes annoyance and irritability in healthy persons may have serious consequences for those already ill in mind or body.　　Noise affects us throughout our lives. For example, there are indications of effects on the unborn child when mothers are exposed to industrial and environmental noise. During infancy and childhood, youngsters exposed to high noise levels may have trouble falling asleep and obtaining necessary amounts of rest.　　why, then, is there not greater alarm about these dangers? Perhaps it is because the link between noise and many disabilities or diseases has not vet been conclusively demonstrated. Perhaps it is because we tend to dismiss annoyance as a price to pay for living in the modern world. It may also be because we still think of hearing loss as only an occupational hazard.　　52. The phrase immune to (Line 3, Para. 1) are used to mean ________.　　[A] unaffected by [B] hurt by　　[C] unlikely to be seen by [D] unknown by　　53. The author39。t s help a massive number of burn victims or people suffering from chemical exposure unless the hospital is prepared to treat them. But all the cities in our survey have specialty units in their hospitals that can handle such cases.　　Are local teams trained to respond quickly and work together? If and urban area was targeted by weapons of mass destruction, city health officials couldn39。s disaster planning shows no awareness of specialneeds people, it isn39。re our first line of protection in almost any disaster situation—professionals who are trained to handle everything from rescuing victims to providing first aid, to enforcing quarantines(封鎖), to directing traffic for evacuations(疏散).　　Are there federal searchandrescue teams based within 50 miles? Large cities often have specialized teams to deal with such things as highrisebuilding rescues or hazardous chemical spills. But these squads are sometimes small, illequipped, or run on a shoestring. This is not true of federal urban searchandrescue task forces that the DHS supports across the country. Each task force is made of 62 members and 4 canines, as well as a prehensive cache of equipment. DHS task forces are not automatically assigned。2010年6月大學英語六級考試全真預測試卷三Model Test Three　　Part I Writing (30 minutes)　　Directions: For this part, you are allowed 30 minutes to write a position on the topic: Overseas Study at an Early Age. You should write at least 150 words following the outline given below:　　1. 目前很多父母在子女高中畢業(yè)前就送他們出國學習　　2. 形成這種趨勢的原因　　3. 我對此的看法　　Overseas Study at an Early Age　　Part II Reading Comprehension (Skimming and Scanning) (15 minutes)　　Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 14, mark　　Y (for YES) if the statement agrees with the information given in the passage。 a city needs to apply and present its case.　　Has the city or state earned green status from the Centers for Disease Control and Prevention? Suppose that in the midst of a flu pandemic or bio terror attack, your city ran low on critical medicines. The CDC stands ready to help by distributing drugs and medical equipment from its Strategic National Stockpile. But the agency wants to know that a city or state is able to quickly mobilize hundreds of health workers and volunteers trained to handle the logistics, and has space set aside for storage and refrigeration. You39。t plete.　　Crisis Communications　　Can first responders—police, fire and medical—talk to one another? On September 11, firefighters died inside the World Trade Center because they could not make contact with police helicopters trying to radio warnings. Inpatible munications is a countrywide problem, and converting or replacing decadesold radio systems can be a long, expensive process. Cities have gotten a big boost if they39。t just wait for federal help to arrive. First responders and hospital would need to react right away. They could also need medical volunteers—say, to help vaccinate people or distribute medicines and supplies. How to ensure that all these professionals and volunteers work together as seamlessly as possible? If