题目
题型：不详难度：来源：
Do not open any files attached to an e-mail from an unknown, suspicious or untrustworthy source.
Do not open any files attached to an e-mail unless you know what it is, even if it appears to come from a dear friend or someone you know. Some viruses can replicate（复制） themselves and spread through e-mail. Better be safe that sorry and confirm that they really sent it .
Do not open any files attached to an e-mail if the subject line is questionable or unexpected. If the need to do so is there always save the file to your hard drive before doing so.
Delete chain e-mails and junk e-mail. Do not forward（转寄） or reply to any of them. These types of e-mail are considered spam（垃圾邮件）, which contains lots of annoying advertisements and useless information.
Do not download any files from strangers.
Be careful when downloading files from the Internet. Ensure that the source is a legitimate（合法的）and reputable one. Verify（证实）that an anti-virus program checks the files on the download site. If you are uncertain, don’t download the file at all or download the file to a floppy（软盘）and test it with your own anti-virus software.
Update your anti-virus software regularly. Over 500 viruses are discovered each month, so you’ll want to be protected. These updates should be at least the products virus signature files. You may also need to update the product’s scanning engine as well.
Back up（备份） your files on a regular basis. If a virus destroys your files, at least you can replace them with your backup copy. You should store your backup copy in a separate location from your work files, one that is preferably not on your computer.
小题1:This passage mainly tells us .
| A．What a computer virus is |
| B．how to use e-mail safely |
| C．how to use computers safely |
| D．how to prevent computer viruses |
| A．A computer virus is a kind of worm |
| B．Not all computer viruses are manmade |
| C．Computer viruses run according to our wishes |
| D．A computer virus is a program or piece of code. |
| A．open all the files we receive |
| B．open any file even if we don’t know what it is |
| C．not open any files if the subject line is questionable |
| D．forward or reply to junk e-mail. |
| A．We’d better not down load any files from strangers. |
| B．We’d better download files from a legitimate and reputable source. |
| C．We should update our anti-virus software regularly. |
| D．We should store our backup copy in the same location as our work files. |
答案
小题1:D
小题2:D
小题3:C
小题4:D
解析
小题1:主旨大意题。这篇文章是总分结构，所以主题句在首段。
小题2:事实细节题。A项是望文生义，B项在文中第一段明确指出“All computer viruses are man-made.”；C项是常识错误，D项在文中首句可知。
小题3:事实细节题。从文中第二、三、四及五段可知。
小题4:事实细节题。从文中最后一段末句“You should store your backup copy in a separate location from your work files, one that is preferably not on your computer.”可知D项表述是错误的。
核心考点
试题【A computer virus is a program or piece of code that is loaded onto your computer】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
Sri Lanka wildlife officials have said the giant waves that killed over 24,000 people along the Indian Ocean island’s coast seemingly missed wild beasts, with no dead animals found.
“No elephants are dead, not even a dead hare or rabbit. I think animals can sense disaster. They have a sixth sense. They know when things are happening,” H.D. Ratnayake, deputy director of Sri Lanka’s Wildlife Department, said on Wednesday.
The waves washed floodwaters up to 3 km (2 miles) inland at Yala National Park in the southeast, Sri Lanka’s biggest wildlife reserve and home to hundreds of wild elephants. “There has been a lot of evidence about dogs barking or birds migrating before volcanic eruptions or earthquakes. But it has not been proven,” said Matthew van Lierop, an animal behaviour specialist at Johannesburg Zoo.
“There have been no specific studies because you can’t really test it in a lab or field setting,” he said.
Other authorities agreed with this conclusion.
“Wildlife seem to be able to pick up certain phenomenon, especially birds. There are many reports of birds detecting coming disasters,” said Clive Walker, who has written several books on African wildlife.
Animals certainly rely on the known senses such as smell or hearing to avoid danger such as predators(食肉动物).
The idea of an animal “sixth sense” is a lasting one that the evidence on Sri Lanka’s damaged coast is likely to add to.
小题1:This passage is mainly about________.
| A．the damage that was caused in the Indian Ocean tsunami |
| B．why animals can save them from natural disasters |
| C．how to protect the wildlife when disaster happens |
| D．the different opinions about animals’ natural power |
| A．It has been proved that animals have a “sixth sense”. |
| B．Research has been made on the special movements of animals before disasters. |
| C．It’s generally considered that animals can sense the coming of disasters. |
| D．Animals have depended on the known senses to escape the Indian Ocean tsunami. |
| A．It is the natural ability of animals that can save them from danger. |
| B．It is the animal’s imagination in the brain. |
| C．It is some hidden power to say in advance that something will happen. |
| D．It is a kind of sense that is the same as smell or hearing. |
| A．News Report. | B．Discovery. | C．Science Fiction. | D．Culture. |
The Food and Drug Administration says meat and milk from clones of adult cattle, pigs and goats are safe to eat. An F.D.A. official called them "as safe to eat as the food we eat every day." And when those clones reproduce sexually（有性繁殖）, the agency says, their offspring（后代） are safe to eat as well. But research on cloned sheep is limited. So the F.D.A. proposes that sheep clones not be used for human food.
The United States this year could become the first country to approve the sale of foods from cloned animals. First, however, the public will have ninety days to comment on three proposed documents. On December 28th the F.D.A. released a long report, called a draft risk assessment, along with two policy documents.
The agency says it must receive comments by April second. The F.D.A. seemed ready to act several years ago, but an advisory committee called for more research.
For now, the government will continue to ask producers to honor a request that they not sell foods from cloned animals.
Clones are still rare. They cost a lot and are difficult to produce.
The F.D.A. says most food from cloning is expected to come not from clones themselves, but from their sexually reproduced offspring. It says clones are expected to be used mostly as breeding animals to spread good qualities.
Public opinion studies show most Americans do not like the idea of food from cloned animals. But this research also shows the public knows little about cloning.
Cloning differs from genetic engineering. A cell taken from a so-called donor animals is grown into an embryo（胚胎）in the laboratory. Next, the embryo is placed into the uterus（子宫）of a female animal. If the process is successful, the pregnancy reaches full term and a genetic copy of the donor animal is born.
小题1:From the passage we know that .
| A．foods from cloned animals are popular in America |
| B．cloned adult animals are safe to eat except sheep. |
| C．cloned animals will be easy to produce |
| D．most foods from cloning is expected to take place of other foods |
| A．tell a interesting story | B．give some advice on foods |
| C．give a report | D．compare different opinions |
A. Most Americans B. An advisory committee
C. Critics D. The F.D.A.
小题4:It can be inferred from the last paragraph that .
| A．cloning has much in common with genetic |
| B．not every cell taken from a donor animal can grow into a genetic copy |
| C．the donor animal should be a female one |
| D．cloned animals grow faster than normal ones |
As time went by, these small family clans joined with others to form larger groups for protection. Joining with other clans gave them more hunters and more women to help cut up the meat and share it between families. Eventually, people tamed(驯养)wild animals such as dogs and horses. People settled around rivers and fertile plains to share responsibilities and duties. Then, people began to plant crops instead of moving to areas where the plants grew. This development changed the environment.
Traditional forms of work also changed. Some people were better at performing a particular task than other clan members, so then began to specialize in things they were good at doing. This also meant that they began to exchange their goods for things that others produced.
People began to communicate with distant tribes. Land was cleared for roads. Foreign plants and animals were transported to places where they had not existed before. Specialization also give people more free time. So art ,dance and music became important ways of expressing feelings and thoughts. This was how many great civilizations started.
Compared to the past, modern civilization has experienced many changes to become the highly developed society that exists today. Populations have increased rapidly. Forests have been cleared for farms. Inventions and technology have made work easier.
However, pollution and other serious problems have also resulted from human progress. As concerned citizens, it is up to us to learn from past mistakes and to help maintain and improve our environment.
小题1:Early tribes didn’t have much effect on animal population because_____
A .they kept animals for themselves B they ate only vegetables
C they loved animals D they killed only enough for food
小题2:The main purpose for small clans to join together was_____
A to hurt animals B to seek safety
C to share caves D to protect environment
小题3:According to the passage ,we can learn that_____
A early people moved to new places looking for new sources of food
B modern civilization began when people started to live together in big groups
C modern advancements are always good for the environment
D people began to exchange goods because they didn’t have enough money
小题4:It can be concluded from the passage that_____
A human progress has brought civilization to the society
B civilization has improved traditional forms of work
C early people understood environmental protection
D our environment has been affected by human progress
The first caves discovered beyond the Earth appear as seven mysterious black dots on the pictures sent back by NASA’s Mars Odyssey orbiter. Each as large as a football field, they may be openings into natural caves below the Martian surface.
“If there is life on Mars, there is a good chance you’d find it in caves,” said Jut Wynne, one of the researchers who noticed the features while working on a US Geological Survey Mars Cave Detection Program.
Jonathan Clarke, a geologist with the Mars Society of Australia, yesterday described the discovery as exciting.
One photo taken at night by an infrared imager(红外线成像器) showed one hole to be unusually warm, suggesting hot air trapped during the day is flowing out.
“I said: ‘Wow, that’s a cave’” Dr. Clarke said excitedly. “People have been looking for these for a long time; now we have found them.”
He agreed such caves would be perfect places to hunt for life escaping from the bitterly cold, radiation-soaked(充满辐射的), dry surface.
“Tiny drops of water could collect inside,” he said. “If there are gases coming out, they could provide energy for a whole range of bacteria. A cave is also a protection from radiation; the surface of Mars is exposed to high levels of space radiation.”
The caves probably formed when tube-shaped lave flows(管状岩浆流) spread across the planet long ago. The outside of the tubes cooled, forming solid walls, while something hotter inside allowed the remaining have to flow out, forming caves.
小题1:What does the passage mainly talk about?
| A．How the caves were formed on Mars. | B．How scientists found these caves on Mars. |
| C．Caves on Mars may be full of hot air or a sign of life. | |
| D．Scientists have completely recognized the surface of Mars. |
| A．water has already been found on Mars | B．the scientists found all the caves at night |
| C．it is certain that there is life in these caves | |
| D．the surface of Mars is bitterly cold, radiation-soaked and dry |
| A．such caves could provide energy for life | B．they had finally found the caves on Mars |
| C．such caves would be perfect places to hunt for life | |
| D．scientists had long been looking for these caves |
| A．lava and energy | B．water and radiation from space |
| C．gases and lava | D．water and protection from radiation |
University tuition fees (学费) are currently capped at £3,000 annually, but this will be reviewed next year and the Government is under enormous pressure to raise the ceiling.
In the research, the teenagers were presented with die terms of four different loans but 76 per cent failed to identify the cheapest. The young people also predicted that they would be earning on average £ 31.000 by the age of 25, although the average salary for those aged 22 to 29 is just £ 17,815. The teenagers expected to be in debt when they finished university or training, although half said that they assumed the debts would be less than £ 10.000. Average debts for graduates are £ 12，363.
Stephen Moir, head of community investment at the Royal Bank of Scotland Group which owns NatWest, said. "The more exposed young people are to financial issues, and the younger they become aware of them, the more likely they arc to become responsible, forward-planning adults who manage their finances confidently and effectively."
Ministers are deeply concerned about the financial pressures on teenagers and young people because of student loans and rising housing costs. They have just introduced new lessons in how to manage debts. Nikki Fairweathcr. aged 15. from St Helens, said that she had benefited from lessons on personal finance, but admitted that she still had a lot to learn about money.
1. Which of the following can be found from the five-year research project?
A. Students understand personal finances differently.
B. University tuition fees in England have been rising.
C. Teenagers tend to overestimate their future earnings.
D. The students" payback ability has become a major issue.
2. The phrase "to raise the ceiling" in paragraph 2 probably means "______".
A. to raise the student loans B. to improve the school facilities
C. to increase the upper limit of the tuition D. to lift the school building roofs
3. According to Stephen Moir, students_______.
A. are too young 10 be exposed 10 financial issues
B. should learn 10 manage their finances well
C- should maintain a positive attitude when facing loans
D. benefit a lot from lessons on personal finance
4. What can we learn from the passage?
A. Many British teenagers do not know money matters well
B. Teenagers in Britain are heavily burdened with debts.
C. Financial planning is a required course at college.
D. Young people should become responsible adults.
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