Some virus have been around since ______the beginning of life on earth (地球上生命的開始).
科目：高中英語 來源： 題型：閱讀理解
A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. All computer viruses are manmade. Here are some virus prevention tips.
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（復制） 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（轉寄） or reply to any of them. These types of e-mail are considered spam（垃圾郵件）, 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（證實）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（軟盤）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（備份） 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.
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
Which of the following statements about computer virus is TRUE?
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.
When we use e-mail, we should .
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.
Which of the following statements is NOT true?
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.
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科目：高中英語 來源：2011-2012學年廣西桂林十八中高一下學期期中考試英語試卷（帶解析） 題型：閱讀理解
The Internet is not perfect. There are many problems with it.
The Internet is not organized. There is no one in charge of the Internet. It is sometimes difficult to find what you are looking for. It is also easy to get the wrong information on the “Net”.
Some businessmen cheat people on the Internet. Internet thieves can steal credit card numbers. Some advertisers send spam to e-mail boxes. E-mail boxes are often filled with these unwanted advertisements.
Illegal businesses can operate on the Internet. These businesses sell X-rated materials, cigarettes and alcohol to teenagers.
The Internet has websites with information about making bombs, breaking the law and terrorism.
Criminals can fool people, especially children, in chat rooms. They can spread poisonous information and attack new members.
The Internet is the greatest advance in communication since human emerged. But it can also like a dark alley in a dangerous part of town. Parents need to set parental controls on their children when they use the Internet. This will keep some of the bad material away from their children.
The Internet can be dangerous to computers, too. Some people who have evil intentions enjoy causing problems for other people they don’t even know. They create computer viruses. A computer can get virus by downloading a program that has a virus in it. Some virus come by e-mail.
A virus can destroy the data a person has saved in computer files. A virus can cause a computer to crash. A virus can also reproduce itself! It can send copies of itself to everyone on a person’s e-mail address list. Then these people’s will have the same problems and can’t work normally!
【小題1】Why can illegal businesses operate on the Internet?
| A．Because some people like to buy banned products on the Internet. |
| B．Because there is no one in charge of the Internet. |
| C．Because X-rated materials, cigarettes, alcohol and so on can be sold well on the Internet. |
| D．Because people who operate businesses on the Internet are criminals. |
| A．poisonous information may have a bad effect on children |
| B．children may damage the computers |
| C．the Internet is always unsafe for the children |
| D．children can’t use the computers well |
| A．to improve the computers |
| B．to find a medicine to kill computer viruses |
| C．to order people not to use the Internet |
| D．to improve people’s moral level（道德水平）. |
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科目：高中英語 來源：2012-2013學年新疆兵團農(nóng)二師華山中學高一上期期末考試英語卷（帶解析） 題型：閱讀理解
The Internet is not perfect. There are many problems with it. The Internet is not organized. There is no one in charge of the Internet. It is sometimes difficult to find what you are looking for. It is also easy to get the wrong information on the “Net”. Some businessmen cheat people on the Internet. Internet thieves can steal credit card numbers. Some advertisers send spam to e-mail boxes. E-mail boxes are often filled with these unwanted advertisements. Illegal(不合法的) businesses can operate on the Internet. These businesses sell X-rated materials, cigarettes and alcohol to teenagers.
The Internet has websites with information about making bombs, breaking the law and terrorism. Criminals（罪犯） can fool people, especially children, in chat rooms. They can spread poisonous（有毒的） information and attack new members.
The Internet is the greatest advance in communication since human appeared. But it can also be like a dark road in a dangerous part of town. Parents need to set parental controls on their children when they use the Internet. This will keep some of the bad material away from their children. The Internet can be dangerous to computers, too. Some people who have bad intentions enjoy causing problems for other people they don’t even know. They create computer viruses（病毒）. A computer can get virus by downloading a program that has a virus in it. Some virus come by e-mail.
A virus can destroy the data a person has saved in computer files. A virus can cause a computer to crash（崩潰）. A virus can also reproduce（復制） itself! It can send copies of itself to everyone on a person’s e-mail address list. Then these people’s will have the same problems and can’t work normally!
【小題1】The underlined word “spam” in the third paragraph means ___________
| A．letters | B．products |
| C．useless information | D．poisonous information |
| A．Because there is no one in charge of the Internet. |
| B．Because some people like to buy banned products on the Internet. |
| C．Because X-rated materials, cigarettes, alcohol and so on can be sold well on the Internet. |
| D．Because people who operate businesses on the Internet are criminals. |
| A．children can’t use the computers well |
| B．children may damage the computers |
| C．the Internet is always unsafe for the children |
| D．poisonous information may have a bad effect on children |
| A．it can change the saved data in computer |
| B．it can reproduce the computer |
| C．it can make the computer operate ill |
| D．it can destroy the saved files and the computer itself |
| A．to improve the computers | B．to improve people’s moral （道德）level |
| C．to order people not to use the Internet | D．to find a medicine to kill computer viruses |
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科目：高中英語 來源：2013-2014學年安徽省六校教育研究會高三2月聯(lián)考英語試卷（解析版） 題型：閱讀理解
All across California, honeybees are flying away from their hives(蜂箱) and dying. Empty hives are causing a lot of worry about some important food crops.
Bees give us a lot more than delicious honey. They are pollinators（授粉者）—they enable plants to produce the fruits and nuts we enjoy by carrying pollen from one plant or flower to the next. The wind pollinates oats, corn, and wheat, but many other plants (like apple and cherry trees and melon vines) depend on insects, bats, and birds. In the U.S., millions and millions of bees kept by human beekeepers fly around doing a lot of this important work for food crops. “Bees are worth protecting because their work adds so much to our diet,” says Dr. Jeff Pettis of the Bee Research Laboratory.
California’s almond (杏仁) crop alone depends on about half the bees in the country. But now the almond crop and many others could be in trouble with so many bees dying.
Researchers at government and university labs all over the country are trying to figure out why so many bees are dying. However, bees are hard to study. Most die away from the hive, so researchers don’t have dead bodies to examine. And when researchers return to a hive after two weeks, about half the bees they studied on their first visit will be dead, replaced by new ones in the natural life cycle of bees. “It isn’t like studying a large animal like a cow that doesn’t move around much and is easy to find out in the cow field,” says Pettis.
Researchers have some ideas about what could be affecting bee health. They could be sick from poisons widely used to kill insects, or they might not be getting enough good food to stay strong. Also, tiny insects called mites feed on bees. “A virus or bacteria could also be doing the killing.” explains Pettis.
1.What is Paragraph 2 mainly about?
A. The wind helps pollinate.
B. Bees are important in food crops.
C. Bees give us a lot of delicious honey.
D. Cherry trees are pollinated by bees.
2.Bees are hard to study because ____________.
A. they move around too much
B. new bees soon replace all the bees studied by researchers
C. they are too tiny
D. they never return to hives
3.What could cause so many bees to die?
A. Poisons to kill birds. B. Eating too much.
C. Large insects. D. Some virus.
4.What can we learn from the article?
A. A large number of bees have died in the hive.
B. Without bees, some foods would disappear from our diet.
C. Only researchers in California want to know what kills bees.
D. Large animals are easier to study than tiny insects.
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科目：高中英語 來源：2015屆新疆兵團農(nóng)二師華山中學高一上期期末考試英語卷（解析版） 題型：閱讀理解
The Internet is not perfect. There are many problems with it. The Internet is not organized. There is no one in charge of the Internet. It is sometimes difficult to find what you are looking for. It is also easy to get the wrong information on the “Net”. Some businessmen cheat people on the Internet. Internet thieves can steal credit card numbers. Some advertisers send spam to e-mail boxes. E-mail boxes are often filled with these unwanted advertisements. Illegal(不合法的) businesses can operate on the Internet. These businesses sell X-rated materials, cigarettes and alcohol to teenagers.
The Internet has websites with information about making bombs, breaking the law and terrorism. Criminals（罪犯） can fool people, especially children, in chat rooms. They can spread poisonous（有毒的） information and attack new members.
The Internet is the greatest advance in communication since human appeared. But it can also be like a dark road in a dangerous part of town. Parents need to set parental controls on their children when they use the Internet. This will keep some of the bad material away from their children. The Internet can be dangerous to computers, too. Some people who have bad intentions enjoy causing problems for other people they don’t even know. They create computer viruses（病毒）. A computer can get virus by downloading a program that has a virus in it. Some virus come by e-mail.
A virus can destroy the data a person has saved in computer files. A virus can cause a computer to crash（崩潰）. A virus can also reproduce（復制） itself! It can send copies of itself to everyone on a person’s e-mail address list. Then these people’s will have the same problems and can’t work normally!
1.The underlined word “spam” in the third paragraph means ___________
A．letters B．products
C．useless information D．poisonous information
2.Why can illegal businesses operate on the Internet?
A．Because there is no one in charge of the Internet.
B．Because some people like to buy banned products on the Internet.
C．Because X-rated materials, cigarettes, alcohol and so on can be sold well on the Internet.
D．Because people who operate businesses on the Internet are criminals.
3.Parental controls are needed when children use the Internet because________
A．children can’t use the computers well
B．children may damage the computers
C．the Internet is always unsafe for the children
D．poisonous information may have a bad effect on children
4.The harm of a computer virus is that___________
A．it can change the saved data in computer
B．it can reproduce the computer
C．it can make the computer operate ill
D．it can destroy the saved files and the computer itself
5.We can infer from the passage that the key to solving the problems with the Internet is____________
A．to improve the computers B．to improve people’s moral （道德）level
C．to order people not to use the Internet D．to find a medicine to kill computer viruses
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