B Typing your password or credit card number into a computer is a moment’s wor - 高中英语试题 - 超级试练试题库

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B
Typing your password or credit card number into a computer is a moment’s work. But if you think your personal details disappear as soon as you hit the Return key, think again: they can sit on the computer’s hard disk for years waiting for a hacker to rip them off.
As people spend more time on the web and hackers become more sophisticated, the dangers of storing personal information on computers are growing by the day, security experts say. There are some safeguards, such as never allowing your computer to store your passwords. But even that is no guarantee of security.
When you type in a password, it is stored in random access memory (RAM), where it is held temporarily until other data overwrites it or the computer is switched off.
But every so often, the computer copies the contents of its RAM onto hard disk, where it is easy prey for a hacker, who can read it directly or design a worm to e-mail it back. The longer sensitive data stays in RAM, the more likely it is to be copied onto the disk, where it stays until it is overwritten—which might not happen for years.
Tal Garfinkel and colleagues from Stanford University have created a software tool which simulates the workings of a complete computer system. Within the simulation, sensitive data can be tagged and then tracked as it passes through the system. Next, Garfinkel and his team simulated computers running common software that regularly handles passwords or confidential personal information, such as Internet Explorer, the Windows login script and Apache server software.
In a paper to be presented, they conclude that the programs took virtually no measures to limit the length of time the information is retained. Some of the tested software even copied the sensitive information, apparently without restraint.
This is the first time anyone has tried to measure the extent of this problem, says Rebecca Wright, a security expert at Stevens Institute of Technology. Garfinkel hopes the results will arouse software developers to take action.
40．Which of the following statements is true according to the passage?
A．It is secure to use your password as long as you hit the Return key.
B．Your personal details is likely to be in danger if you spend more time on the web.
C．Your password will be safe if you have some safeguards.
D．Never allowing your computer to store your passwords will be safe.
41．Which of the following is NOT the reason for the unsafety of a password?
A．It will be stored in RAM.
B．It will be copied onto hard disk.
C．It might not be overwritten.
D．It will disappear as soon as you hit the return key.
42．Tal Garfinkel and his team measured the extent of security of .
A．simulating the working of a complete computer system
B．tagging sensitive data
C．passing through the system
D．running common software
43 What can be inferred from the passage?
A．The length of the time the information is stored is not limited.
B．The programs can not retain the information.
C．The security problem should be paid more attention to.
D．Some sensitive information has been copied.

答案

小题1:B
小题2:D
小题3:A
小题4:C

解析

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试题【 B Typing your password or credit card number into a computer is a moment’s wor】；主要考察你对题材分类等知识点的理解。[详细]

举一反三

C
Of all the things we eat and drink, water is the most important. Not all people realize this, but it is quite true. The human body can live without food for a long time, but two or three days without water usually result in death.
Many people do not understand how much water the human body needs, but many people do not drink enough, especially in the hot weather. Most people drink when they are thirsty but often need more water after exercises.
65 to 70 percent of the human body is water. Water is important in several different ways. Most people need five to seven litres of water every day, but we need not drink this amount because a lot comes from the food we have. If we don’t have enough water, however, we will feel tired and many become ill. Do you know what the best drink is? Yes, you are right. Cold water!
64．Do most people drink five litres of water every day?
A. Yes, because water is the most important
B. No, because what we eat contains water
C. Yes, because we can’t live without water
D. No, because we are not thirsty
65．How much water are there in the human body?
A. About three fourths of the human body is water.
B. Nearly a half of the human body is water.
C. Less than a half of the human body is water.
D. Almost one fourth of the human body is water.
66．When do we need more water?
A. In cold weather or after exercises.
B. In hot weather or after exercises.
C. Before breakfast, lunch and supper.
D. When we feel tired or become ill.
67．Which of the following is not right?
A. Cold water is the best drink.
B. Few people understand how much water the human body needs.
C. Not all the people realize water is the most important.
D. When we feel tired or become ill, we never need any water.

题型：不详难度：| 查看答案

D
The Internet has become part of teenage life.
A new report on 3,375 students aged from 10 to 18 in seven Chinese cities found that 38 percent of them believe they use the Internet often.
While most of them get useful information and use the Internet to help in their studies, some are not using it in a good way.
In order to help young people use the Internet in a good way, a textbook on good Internet behaviour (行为) has started to be used in some Shanghai middle schools this term. The book uses real examples to teach students all about good ways of using the Internet. The book gives useful advice such as it’s good to read news or find helpful information to study.
Some students also make online friends. But if you are meeting a friend offline, make sure your parents know. Teachers and parents all think the book is of great help. A teacher said the book would be a guide for teens using the Internet. She believes it will keep students away from bad sites. “Many students are using the Internet without guidance from their parents,” she said. “The book will teach students how to be a good person in the online world.”
68. The textbook mainly tells us ______.
A. why we should use the Internet    B. how to study using the Internet
C. how to use the Internet correctly   D. how to get help from others
69. What’s the attitude of teachers and parents towards the textbook?
A. They are against it.               B. They are for it.
C. They don’t care about it.          D. The passage doesn’t mention.
70. According to the passage, teenagers are NOT encouraged to ______.
A. read online news          B. go online
C. find helpful information online
D. meet a friend offline without letting their parents know
71. From this passage we know that _______.
A. more and more students have given up visiting bad Web sites
B. schools and teachers begin to pay attention to students’use of the Internet
C. no more homework will be given in Shanghai middle schools
D. less and less information can be found on line

题型：不详难度：| 查看答案

D
It seems that great artists and scientists often suffer from mental problems. Both Einstein and Dickens had mental illness. Now scientists have started to look at whether mental illness and genius are linked.
Dr Adele Juda studied 5,000 creative people in Germany. She found there were more people with mental illness in this group than in the general population. Poets had the highest rate of mental illness, followed by musicians, with lower numbers for painters and architects.
Other scientists did research which also showed a strong link between mental problems and creativity. But, it did nothing to explain it.
Dr Ruth Richards of Harvard University made a breakthrough. Instead of studying creative people, she took a group of psychiatric (精神病的) patients and tested them for creativity. The patients got much higher scores than a normal group.
Also, the patients’ close relatives were much more creative than the patients and a normal group. This suggests that the key to the link between creativity and mental illness is in our genes (基因).
But this is a problem. According to Darwinism, harmful genes should be removed. Some scientists believe that evolution (进化) has created a balance, where the madness of a few people leads to the development of the whole human race.
Geniuses(天才人物) may be mad, bad or just difficult to understand, but their discoveries have improved the world we live in. It seems that a little creative madness is good for us all.
67. According to Dr Adele Juda, which of the following has the lowest rate of mental illness?
A. Painters B. Musicians C. Poets D. Bus drivers
68. The underlined phrase “make a breakthrough” in the 4th paragraph means “ ___________ ”.
A. discover or find something new and important.
B. make a way through using force.
C. (of the sun or moon ) appear from behind (clouds).
D. suddenly change (from a slower to a faster pace)
69. Based on the research of Dr Ruth Richards of Harvard University, we can conclude that .______
A. great artists and scientists often suffer from mental problems
B. the patients’ close relatives were much more creative than the patients and a normal group
C. psychiatric patients have more creativity than the average people
D. it is our genes that determine the link between creativity and mental illness
70. Which of the following statements is NOT true?
A. Among the 5,000 creative Germans, more people suffer from mental diseases.
B. There is a strong link between mental problems and creativity.
C. Psychiatric patients make greater contributions than common people.
D. The key to the link between creativity and mental illness is in our genes.
71. What is the writer’s attitude toward madness?
A. Madness is harmful to the whole society.
B. A little creative madness is good for us all.
C. All the talented people are mad.
D. Only the people with mental illness have more creativity.

题型：不详难度：| 查看答案

D
The Focal Point of the “ Chinese Liquor Golden Triangle”
In China, there is a saying: a good spirit(wine) is in Sichuan, but the great one is in Yibin.
Yibin, the birthplace of Wuliangye, has a centuries-old tradition of producing great spirits. At the confluence of Jinsha and Min rivers, Yibin is praised as the first city on the source of the Yangtze River. Here, the water is clean, the soil is rich, and the climate is very favorable for brewing good liquor. The blessings of nature and centuries-old liquor brewing traditions gave rise to “ The Ten-Mile Liquor City ”, the main production facility of domestic liquor giant Wuliangye Group Co. Ltd.
Extending across 10 kilometers and dotted with gardens and sculptures, the city attracts domestic and foreign visitors with its famed liquor brewing and related culture. Another attraction is its legendary Ming Dynasty (1368-1644AD) liquor cellars (酒窖，地下储藏室).
The city has 30,000 large modern brewing tanks that provide an enormous capacity to store liquor.
The high quality of Wuliangye also owes much to its unique brewing techniques and materials. These traditional techniques are included on the list of national intangible（非物质的） cultural heritage.
Wuliangye’s sales revenues（销售额）and pre-tax profits accounted for nearly half of the respective （分别的） 59 billion yuan and 12.5 billion yuan generated by Sichuan’s provincial liquor industry in 2008. Liquor production by large enterprises in the province was about 1.1 million kiloliters, accounting for 19.6% of the production in the country.
Wuliangye is now investing 300 million yuan in a state-of-the-art quality assurance center (质保中心)that has higher standards than national requirements, which will boost the existing quality-control system when it is put into service next year.
With a goal of production value of 100 billion yuan for the year of 2020, Wuliangye is playing a leading role in the development of the liquor industry in the region. A lot of related industries are now building up in the region to create a Chinese Liquor Golden Triangle —the Chinese equivalent （相当于）of the French Bordeaux region---that continues to appear on the upper reaches of the Yangtze River.
67. To be exact, the domestic liquor giant Wuliangye Group Co. Ltd. Lies _________.
A. on the Jinsha River              B. in the city of Yibin
C. to the west of Sichuan            D. on the middle reaches of the Youngtze River
68. Which of the following is the most favorable for brewing the good wine?
A. The water       B. The soil         C. The climate          D. The facility
69. Which of the following is NOT true according to the passage above ?
A. Compared with the western countries, Chinese wines have a long way to go.
B. The Golden Triangle is known for its wines and related industries.
C. Wuliangye’s pre-tax profit accounted for nearly 6.25 billion in 2008.
D. The liquor production of our country in 2008 is about 5,6 million kiloliters.
70. Domestic and foreign visitors go to the city for its _______.
A. famous wine brewing and related culture
B. beautiful geographical landscape
C. historic relics of different Chinese dynasties
D. the source of the Yangtze River

题型：不详难度：| 查看答案

B
The climate of any place is the kind of weather. It usually has over a long period of time. The houses we live in, the clothes we wear, the foods we eat depend on the climate of the place where we live.
Climate is pattern that is not nearly as simple as we think, and it is affected by many factors. The distance to the North or South Pole or to the equator really matters a lot. If you live near either of the poles, you live in a cold climate, for the place where you live does not get as much or as direct sunshine as a place farther away from the poles. In places close to the equator, the climate is very hot, for they are the parts where the sun shines almost straight down.
Whether rain or snow falls makes a great difference to the climate. In hot, dry deserts, little rain falls, but in a hot rain forest, the amount of rainfalls is far larger than that in a desert, for there is a heavy rain almost every day, even several times per day. Though a rainforest and a desert may be the same distance from the equator, their climates are rather different from each other.
How much rain or snow falls are considered by some to be determined by the winds, the surrounding mountains and the currents(水流) in nearby seas and so on. In short, it is a very complex natural phenomenon.
65．This passage mainly talks about                            .
A．weather                B．different climates
C．climate and its determining factors D．the difference between weather and climate
66．From this passage, we know climate and weather are      and climate is    .
A．almost the same; the general term of weather
B．quite different; the average weather conditions at a particular place over a period of time
C．not the same; included by weather
D．very much alike; bigger and weather is smaller
67．The difference of the climates between a tropical（热带的）desert and a tropical rain forst affected by                          .
A．the amount of rainfalls
B．the winds and the surrounding mountains
C．the currents in near seas.
D．how much sunshine the two different places can get
68．From the context, we can guess that the word “complex” is    and it     .
A．a noun; means a simple thing
B．an adjective; means being easy to understand
C．an adverb; has almost the same meaning of “rather”
D．an adjective; means being difficult to understand

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