题目内容
Oxygen usually ______ in the form of gas in nature but when made cold enough, it can also take the form of solid.
A. remains B. stays B. exists D. survives
B
阅读快车系列答案 Dolphins and sharks are showing up in surprisingly shallow water just off the Florida coast．Mullets，crabs，rays and small fish gather by the thousands off an Alabama pier．Birds covered in oil are crawling（爬）deep into marshes（沼泽），never to be seen again．
Marine scientists studying the effects of the BP disaster（英国石油公司漏油事件）are seeing some strange phenomena．Fish and other wildlife seem to be fleeing the oil out in the Gulf and gathering in cleaner waters along the coast in a trend that some researchers see as a potentially troubling sign．The animals.presence close to shore means their usual habitat is badly polluted，and the crowding could result in mass die-offs as fish run out of oxygen．Also，the animals could easily be captured by their enemies．
The nearly two-month-old spill（漏油）has created an environmental disaster in US history as tens of millions of gallons have flown into the Gulf of Mexico ecosystem．Scienfists are seeing some unusual things as they try to understand the effects on thousands of species of marine life．For nearly four hours Monday，a three-person crew with Greenpeace cruised（巡航）past delicate islands and mangrove-dotted inlets in Barataria Bay off southern Louisiana．They saw dolphins by the dozen frolicking（嬉戏）in the oily sheen（光泽）and oil-tinged pelicans feeding their young．But they spotted no dead animals．
“I think part of the reason why we’re not seeing more yet is that the impacts of this crisis are really just beginning，”Greenpeace marine biologist John Hocevar said．
The counting of dead wildlife in the Gulf is more than an academic exercise；the deaths will help determine how much BP pays in damages．
【小题1】What do the marine life react to the BP disaster？
| A．Dolphins and sharks show up in deep water． |
| B．Tens of thousands of marine animals are found dead． |
| C．Sea creatures flee from oil spill，gathering near seashore． |
| D．Birds crawl（爬）deep into caves． |
| A．the lack of environmental sense of BP |
| B．the nearly two-mouth-old oil spill |
| C．the crowding marine life |
| D．the damage of Mexico Gulf ecosystem |
| A．Disappointed | B．Depressed | C．Neutral | D．Worried |
| A．marine scientists have seen some strange phenomena． |
| B．the disaster has little influence on dolphins． |
| C．a three-person crew reached no conclusion． |
| D．BP will pay much money according to the number of dead wildlife there． |
As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been 16 only once — for a woman who had merely fainted. But the 17 made me quite curious about how 18 this kind of thing happens. I wondered what I would do if 19 with a real midair medical emergency — without access 20 a hospital staff and the usual emergency equipment. So 21 the New England Journal of Medicine last week 22 a study about in-flight medical events, I read it 23 interest.
The study estimated that there are a(n) 24 of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not 25 ; fainting and dizziness are the most frequent complaints. 26 13% of them — roughly four a day — are serious enough to 27 a pilot to change course. The most common of the serious emergencies 28 heart trouble, strokes, and difficulty breathing.
Let’s face it: plane rides are 29 . For starters, cabin pressures at high altitudes are set at roughly 30 they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty 31 , but passengers with heart disease 32 experience chest pains as a result of the reduced amount of oxygen flowing through their blood. 33 common in-flight problem is deep venous thrombosis — the so-called economy class syndrome (综合症). 34 happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation (立法), flights with at 35 one attendant are starting to install emergency medical kits to treat heart attacks.
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Dolphins and sharks are showing up in surprisingly shallow water just off the Florida coast. Mullets, crabs, rays and small fish gather by the thousands off an Alabama pirer. Birds covered in oil are crawling deep into marshes（沼泽）, never to be seen again.
Marine scientists studying the effects of the BP disaster（英国石油公司漏油事件）are seeing some strange phenomena. Fish and other wildlife seem to be fleeing the oil out in the Gulf and clustering in cleaner waters along the coast in a trend that some researchers see as a potentially troubling sign. The animals' presence close to shore means their usual habitat is badly polluted, and the crowding could result in mass die-offs as fish run out of oxygen. Also, the animals could easily be captured by their enemies.
The nearly two-month-old spill（漏油）has created an environmental disaster in US history as tens of millions of gallons have flown into the Gulf of Mexico ecosystem. Scientists are seeing some unusual things as they try to understand the effects on thousands of species of marine life.
For nearly four hours Monday, a three-person crew with Greenpeace cruised past delicate islands and mangrove-dotted inlets in Barataria Bay off southern Louisiana. They saw dolphins by the dozen frolicking（嬉戏）in the oily sheen（光泽）and oil-tinged pelicans feeding their young. But they spotted no dead animals.
"I think part of the reason why we're not seeing more yet is that the impacts of this crisis are really just beginning," Greenpeace marine biologist John Hocevar said.
The counting of dead wildlife in the Gulf is more than an academic exercise; the deaths will help determine how much BP pays in damages.
1.What do the marine life react to the BP disaster?
|
A．Birds crawl deep into caves. |
|
B．Dolphins and sharks show up in deep water. |
|
C．Tens of thousands of marine animals are found dead. |
|
D．Sea creatures flee from oil spill, gathering near seashore. |
2.The environmental disaster was caused by .
|
A．the damage of the Mexico Gulf ecosystem |
|
B．the lack of environmental sense of BP |
|
C．the nearly two-month-old oil spill |
|
D．the crowding marine life |
3.What is John Hocevar’s attitude towards the disaster?
|
A．Worried. |
B．Disappointed. |
C．Depressed. |
D．Neutral. |
4.From the passage, we can infer that .
|
A．BP will pay much money according to the number of dead wildlife there |
|
B．marine scientists have seen some strange phenomena |
|
C．the disaster has little influence on dolphins |
|
D．a three-person crew reached no conclusion |
5. The test is most probably a ______ .
|
A．newspaper ad |
B．book review |
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C．science news report |
D．science fiction story |
CPR is cardiopulmonary resuscitation (心肺复苏). It forces air into the lungs and pumps(用泵抽) blood and oxygen to the brain in order to increase the chances that a person whose heart stops will survive. It increases the chances that he or she will suffer little or no brain damage.
The American Heart Association suggests two ways to perform CPR. One combines the use of hands to pump the victim’s chest with rescue breathing. The other method is called “Hands-Only CPR”, which is for people who are unwilling or unable to perform rescue breathing. Some people fear infection(感染). Others say they are afraid of making the patient worse.
But the American Heart Association strongly asks people in contact with a victim(受害者) to take action and tells how to take it. It says you can recognize a person needing CPR. He or she is unconscious(无意识) -- unable to communicate or react to surroundings or speech. His or her skin has lost color. The person is not breathing. If such conditions describe the situation, chances are the heart has stopped beating.
You should act by calling for help, or sending someone else. Even if you cannot do mouth-to-mouth rescue breathing, you can perform Hands-Only CPR. You can do chest compressions(压迫) that help to keep blood flowing to the brain and the heart. To perform the compressions, place one hand over the other and press firmly on the center of the victim’s chest. Push down about five centimeters. Aim for one hundred compressions each minute.
Doctor Sayre suggests that medical workers do both the breathing method and chest compressions as usual. He says some victims, including babies, need the mouth-to-mouth breathing with the compressions. Still, the doctor says it is better to do just chest compressions than to do nothing.
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