B
　　Fever has usually been regarded as a threat to health.However,no one has actually proved that fever is dangerous.This fact attracted the attention of Matthew J.Kluger.Imagining that fever might not be as harmful as it had been supposed,Kluger set up a series of experiments with lizards(蜥蜴).
　　What Kluger and his team did his team did in their first experiment was simple.They put some lizards in a sand-box,one end of which was heated to 44℃,while the other was at a room temperature.It was found that the lizards moved form one part of the box to the other in order to keep a constant temperature of about 38℃.Having shown that normal lizards regulate(调节) their own temperature,Kuger,in a second experiment,then set out to show that lizards,like most other animals,develop fever when infected.This was done by making lizards infected with bacteria (细菌) that were known to cause disease.As the team expected,the infected lizards remained longer in the heated part of the box,until they had raised their body temperatures to two or three degrees above normal.In other words,the sick lizards gave themselves fever.
　　In a third experiment,the team observed the effect of temperature on the survival of the lizards.One group of infected lizards was given a fever - suppressing(退烧) drug.The other group was given no drug and ran a fever,that is to say,they kept a highter temperature for four or five days before seeking a cooler environment.The results were impressive.Of those which raised their body temperature,all but one remained alive.Of those given the fever - suppressing drug,more than half died.Similar results have since been produced in other animals.For example,infeced fish swim to warmer water,and will die if not allowed to do so.
　　An important conclusion can be drawn from these experiments.As Kluger points out,lizards have been on earth for hundreds of millions of years.It is reasonable to suppose that a response that is so old has been kept by nature for some purpose.It would appear, therefore, that fever does not make disease worse.Rather it its part of the mechanism(机能) by which infection is controlled.
　　60.In his experiments,Kluger was hoping to prove that fever ________.
　　　A.is not harmful to lizards
　　　B.is not necessarily bad
　　　C.is necessary for both humans and animals
　　　D.has the same effect on humans and animals
　　61.The lizards put in the sand - box in the first experiment _____.
　　　A.had a fever B.were not sick C.recovered from disease D.died of heat
　　62.In the third experiment,the lizards given a fever - suppressing drug died because _____.
　　　A.they had no more fever that they needed
　　　B.they were normal ones and had no fever
　　　C.the drug had no iffect on sick lizards
　　　D.the drug made their body temperature too low
　　63.How would you understand the underlined words"a response" in the last paragraph?
　　　A.Gause of disease. B.Recovery from disease.
　　　C.Relationship between living D.Natural defense in the body against disease.

A2 and AS Level Revision at Easter 2012
Course Dates
Courses run from Monday to Friday each week.
◆    One Week Courses
Monday 6 April—Friday 10 April
Monday 13 April— Friday 17 April
◆    Two Week Courses
Monday 6 April—Friday 17 April
Students may arrive a day earlier （Sunday） and/or depart a day later （Saturday） at extra cost.
Number of Students per Class
The average number of students is usually between 1 and 4 per class. As the numbers increase　in a class, the number of “contact hours” is suitably increased to allow extra time. Many students　will find themselves in privately tutored（指导） classes giving them ultimate flexibility（灵活性） and attention of the Revision Tutor.
Fees
One Week Boarding Fees: 1,495 GB Sterling （5 days/4 nights）
Two Week Boarding Fees: 2,895 GB Sterling （12 days/11 nights）
One Week Day Fees: 1,095 GB Sterling （5 days）
Two Week Day Fees: 2,165 GB Sterling （10 days）
Optional Extra Elements
Extra Night’s Accommodation（住宿）: 70 GB Sterling （including meals）
Additional Private Tutoring: 60 GB Sterling per hour
How to Apply
We provide you the majority of A2 and AS subjects. Before you apply, please contact us to tell us which subject areas you would like to cover. We will then be able to check whether a space is available. Once a space has been confirmed as available, you will need to apply online or via the PDF, and also compete the Additional Information PDF. After you apply, we will require you to fill in a detailed form explaining your requirements. If you have any question, don’t hesitate to ask us.
【小题1】Before you apply for the course, you must _______.

Tim Welford, aged 33, and Dom Mee, aged 30, both from England, were keen on (="like..." very much) rowing boats. They made a plan to row across the Pacific Ocean from Japan to San Francisco. The name of their rowboat was “Crackers”. It was about seven meters long.
They set out from Japan on May 17,2001. They had rowed nearly 5,500 miles when their boat was hit by a fishing ship on September 17,2001. Luckily they both escaped unharmed, but their boat was badly damaged and they had to abandon( =" stop)their" journey.
　　In a radio interview, Dom expressed his disappointment and explained how the accident took place.
　　“A fishing ship came towards us with nobody on the bridge and ran us down. It all happened so quickly. I managed to dive into the water. Tim felt it would be safer to stay on board. He was trapped inside as the boat was driven under the water. Finally some people appeared on the ship and saw me in the water. I shouted at them to stop the ship and to get Tim out. When the ship stopped, I eventually saw Tim, and I was very, very happy that we were still alive. We were very disappointed that we couldn’t reach San Francisco. But we are alive. That above everything is the most important. ”
41.【小题1】 How long had Tim and Dom been at sea when their boat was hit by a fishing boat?

　In a great many cities, hundreds of people ride bicycles to work everyday. In New City, some bike riders have even formed a group called Bike for a Better City. They declare that if more people rode bicycles to work, there would be fewer automobiles(汽车) in the downtown part of the city and so less dirty air from car engines. For several years this group has been trying to get the city government to help bicycle riders. For example. They want the city to draw special lanes(通道) for bicycles only on some of the main streets, because when bicycle riders must use the same lanes as cars, there are accidents. Bike for a Better city feels that if there were special lanes more people would use bikes.
But no bicycles lanes have been drawn. Not everyone thinks they are a good idea-----they say it will slow traffic. Some store owners on the main streets don't like the idea------they say that if there is less traffic, they will have less business.
The city government has not yet decided what to do. It wants to keep everyone happy. On weekends, Central Park----the largest place of open ground in New York----is closed to cars, and the roads may be used by bicycles only. But Bike for a Better City says that this is not enough and keeps fighting to get bicycle lanes downtown.
73. The bike riders suggest that _____________.
A. bicycles should be used instead of cars    B. bicycle lanes should be drawn
C. fewer buses or cars should be used  D. the number of special lanes should be increased
74. The advantage(好处) of the special lanes is that _______.
A. they will make cars and buses run slowly   B. they will make it easier for bike riders to go to parks
C .they will make the city more beautiful    D. the lanes will prevent accidents
75. The government has not decided whether special lanes should be drawn ______.
A. so that everyone is disappointed      B. because there are different opinions
C. because most people travel by train   D. because Bike for a Better City is not strong enough

There are various ways in which individual economic units can interact with one another. Three basic ways may be described as the market system, the administered system, and the traditional system.
　　In a market system individual economic units are free to interact among each other in the marketplace. It is possible to buy commodities from other economic units or sell commodities to them. In a market, transactions may take place via barter or money exchange. In a barter economy, real goods such as automobiles, shoes, and pizzas are traded against each other. Obviously, finding somebody who wants to trade my old car in exchange for a sailboat may not always be an easy task. Hence, the introduction of money as a medium of exchange eases transactions considerably. In the modern market economy, goods and services are bought or sold for money.
　　An alternative to the market system is administrative control by some agency over all transactions. This agency will issue commands as to how much of each good and service should be produced, exchanged, and consumed by each economic unit. Central planning may be one way of administering such an economy. The central plan, drawn up by the government, shows the amounts of each commodity produced by the various firms and allocated to different households for consumption. This is an example of complete planning of production, consumption, and exchange for the whole economy.
　　In a traditional society, production and consumption patterns are governed by tradition; every person’s place within the economic system is fixed by parentage, religion, and custom. Transactions take place on the basis of tradition, too. People belonging to a certain group or caste（阶级） may have an obligation to care for other persons, provide them with food and shelter, care for their health, and provide for their education. Clearly, in a system where every decision is made on the basis of tradition alone, progress may be difficult to achieve. An inactive society may result.
【小题1】What is the main purpose of the passage?