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B
Although we already know a great deal about flu, and although the World Health Organizations is constantly collecting detailed information from its chain of flu reference laboratories throughout the world, it is extremely difficult for epidemiologists, who study infectious diseases, to predict when and where the next flu epidemic will occur, and how serious it will be.
There are three kinds of flu virus, known as A, B and C. flu C virus is relatively stable and causes mild infections that do not spread far through the population. The A and B types are unstable, and are responsible for the epidemics that cause frequent concern. Following any virus attack, the human body builds up antibodies （抗体） which can be changed into immunity to that type of virus but a virus with the ability to change its character is able to bypass this protection. Variability（可变性） is less developed in the flu B virus, which affects only human beings. As flu B virus may cause a widespread epidemic but will have little effect if introduced into the same community soon afterwards, since nearly everyone will have built up antibodies and will be immune. The flu A virus, which affects animals also, is extremely unstable and is responsible for some of the worst outbreaks of the disease, such as the world epidemic, of 1918&1919, when about half the world's population were infected and about twenty million people died, some from pneumonia caused by the virus itself and some from secondary complication caused by bacteria. Accurate prediction is difficult because of the complication of the factors. A particular virus may be related to one to which some of the population have partial involved immunity. The extent to which it will spread will depend on factors such as its own strength, or virulence （病毒性）, the ease with which it can be transmitted and the strength of the opposition it encounters （遇到）. Scientists, however, have a reliable general picture of the world situation.
55. Which of the following is the most appropriate title for the passage?
A. Symptoms of Flu B. Man Vs Flu Virus
C. WHO: The Major Organization against Flu Virus D. Variability of Flu Virus
56. What does the author say about the flu B virus?
A. B Virus is relatively stable and causes mild infections that do not spread far through the population.
B. B Virus is unstable, and is responsible for the epidemics that cause frequent concern.
C. B virus is extremely unstable and is responsible for some of the worst outbreaks of the disease.
D. B virus has a very developed variability, and it affects only human beings.
57. Which of the following is NOT mentioned as a factor contributing to the extent to which a virus spreads?
A. The strength of the virus. B. The ease with which the virus can be transmitted.
C. The strength of the opposition. D. The immunity the virus can bring about.
58. This article is quite probably ________.
A. a piece of news B. a special science report
C. an introduction to a book D. a scientific fiction
查看习题详情和答案>>Because of the financial crisis in the
Recently, two major
In the
Across the Atlantic,
Most young professionals now rent houses, since 80 percent of UK mortgage schemes （抵押贷款计划）have disappeared― a direct result of the credit crisis. This has boosted the house rent market.
In large cities,
Yet, despite students' suffering, the number of this year's university applications is expected to grow. During economic slumps, people regard further education as a way to survive tough job markets.
56．According to the passage, banks are unwilling to offer students loans because _____.
A．the students are poor and sometimes they can't pay off the debt
B．banks prefer lending the money to the young professionals
C．banks haven't enough money left at the present time
D．they think college students are not studying hard
57．The underlined phrase "top up" in Paragraph 3 probably means _____.
A．put up B．make up C．fill up D．pick up
58．Which of the following is NOT true according to the passage?
A．
B．More
C．It is not so easy for US students to loan money now.
D．College students' tuition fees have risen greatly.
59．It can be inferred that_____.
A．there is no private student loan lenders in the
B．loans for
C．private-funding falls a little because of higher-interest loans in the
D．private loans play a very important role in financing US students' education
60．The passage mainly tells us ______.
A．college students in the
B．it is the duty of the governments to solve college students' financial crisis
C．private student loan is a good way for college students to overcome the difficulties
D．further education is a good way out for college students to survive tough job markets
查看习题详情和答案>>Because of the financial crisis in the US and UK，college students are beginning to struggle to find ways to pay their tuition fees and accommodations．
Recently，two major US student loan lenders--Citibank and JP Morgan Chase—announced they were leaving the student—loan industry．altogether．Because banks currently have a lack of credit（存款额），they are reluctant to offer students low-interest loans（贷款）that need a several-year wait for any return of interest．
In the US，many undergraduates top up their financial needs with a private loan，although the majority can get government-funded loans．In the 2005-2006 academic year，$17 billion in private student loans was used to finance higher education．The short-fall in private-funding has yet to be covered and will hit many US students hard．
Across the Atlantic，UK students have been less troubled by the crisis．Most undergraduates in the UK cover their university expenses with government-funded loans and grants（助学金）．Their biggest concern is a sudden steep increase in student rent．
Most young professionals now rent houses．since 80 percent of UK mortgage schemes（住房抵押贷款计划）have disappeared--a direct result of the credit crisis．This has boosted the house rent market．
In large cities．UK students are paying almost 6.5 percent more in rent than the previous year．Figures from the UK organization Accommodation for Student show students in big cities such as London paying an average weekly rent of ￡103．
Yet，despite students' suffering，the number of this year's university applications is expected to grow．During economic slumps，people regard further education as a way to survive tough job markets．
1．According to the passage，banks are unwilling to offer students loans because ________．
A．the students are poor and sometimes they can’t pay off the debt
B．banks prefer lending the money to the young professionals
C．banks haven't enough money left at the present time
D．they think college students are not studying hard
2．The underlined phrase “top up” in Paragraph 3 probably means ________．
A．put up B．make up C．fill up D．pick up
3．Which of the following is NOT true according to the passage?
A．UK college students have to pay more if they want to rent houses．
B．More UK students want to further their study in college．
C．It is not so easy for US students to loan money now．
D．College students' tuition fees have risen greatly．
4．It can be inferred that ________．
A．there is no private student loan lenders in the UK
B．loans for US college students will be increased next year
C．private-funding falls a little because of higher-interest loans in the US
D．private loans play a very important role in financing US students’ education
5．The passage mainly tells us ________．
A．college students in the US and UK are faced with their financial problems
B．it is the duty of the governments to solve college students' financial crisis
C．private student loan is a good way for college students to overcome the difficulties
D．further education is a good way out for college students to survive tough job markets
查看习题详情和答案>>Because of the financial crisis in the US and UK, college students are beginning to struggle to find ways to pay their tuition fees and accommodations．
Recently, two major US student loan lenders — Citibank and JPMorgan Chase — announced they were leaving the student loan industry altogether．Because banks currently have a lack of credit, they are reluctant to offer students low-interest loans that need a several-year wait for any return of interest．
In the US, many undergraduates top up their financial needs with a private loan, although the majority can get government-funded loans．In the 2005-2006 academic year, $17 billion in private student loans was used to finance higher education．The shortfall in private funding has yet to be covered and will hit many US students hard．
Across the Atlantic, UK students have been less troubled by the crisis．Most undergraduates in the UK cover their university expenses with government-funded loans and grants （助学金）．Their biggest concern is a sudden steep increase in student rent．
Most young professionals now rent houses, since 80 percent of UK mortgage schemes （住房抵押贷款计划） have disappeared — a direct result of the credit crisis．This has boosted the house rent market．
In large cities, UK students are paying almost 6．5 percent more in rent than the previous year．Figures from the UK organization Accommodation for Student show students in big cities such as London paying an average weekly rent of ￡103．Yet, despite students’ suffering, the number of this year’s university applications is expected to grow．During economic slumps （经济萧条时期）, people regard further education as a way to survive tough job markets．
1．According to the passage, banks are unwilling to offer students loans because ________．
A．the students are poor and sometimes they can’t pay off the debt
B．banks prefer lending the money to the young professionals
C．banks don’t have enough money left at the present time
D．they think college students are not studying hard
2．The underlined phrase “top up” in Paragraph 3 probably means ________．
A．put up B．make up C．fill up D．pick up
3．Which of the following is NOT true according to the passage?
A．UK college students have to pay more if they want to rent houses．
B．More UK students want to further their study in college．
C．It is not so easy for US students to loan money now．
D．College students’ tuition fees have risen greatly．
4．It can be inferred that ________．
A．there are no private student loan lenders in the UK
B．loans for US college students will be increased next year
C．private funding falls a little because of higher-interest loans in the US
D．private loans play a very important role in financing US students’ education
查看习题详情和答案>>If you are a recent social science graduate who has had to listen to jokes about unemployment from your computer major classmates, you may have had the last laugh. There are many advantages for the social science major because this high-tech “Information Age” demands people who are flexible(灵活的) and who have good communication skills.
There are many social science majors in large companies who fill important positions. For example, a number of research studies found that social science majors had achieved greater managerial success than those who had technical training or pre-professional courses. Studies show that social science majors are most suited for change, which is the leading feature(特点) of the kind of high-speed, high-pressure, high-tech world we now live in.
Social science majors are not only experiencing success in their long-term company jobs, but they are also finding jobs more easily. A study showed that many companies had filled a large percentage of their entry-level positions with social science graduates. The study also showed that the most sought-after quality in a person who was looking for a job was communication skills, noted as “very important”, by 92 percent of the companies. Social science majors have these skills, often without knowing how important they are. It is probably due to these skills that they have been offered a wide variety of positions.
Finally, although some social science majors may still find it more difficult than their technically trained classmates to land the first job, recent graduates report that they don’t regret their choice of study.
By saying that “you may have had the last laugh” in the first paragraph, the author means that you may have____.
A. shared the jokes with computer majors B. earned as much as computer majors
C. found jobs more easily than computer majors D. stopped joking about computer majors
Compared with graduates of other subjects, social science graduates ___.
A. are ready to change when situations change B. are better able to deal with difficulties
C. are equally good at computer skills D. are likely to give others pressure
The underlined word “land” in the last paragraph probably means ___.
A. keep for some time B. successfully get C. immediately start D. lose regretfully
According to the text, what has made it easy for social science graduates to find jobs?
A. Willingness to take low-paid jobs. B. Readiness to gain high-tech knowledge.
C. Skills in expressing themselves. D. Part-time work experience.
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