The Haitian tsunami gave scientists a chance to find out how well vital and potentially life-saving warning systems were working.

       Noaa’s Pacific Marine Environmental Laboratory has developed a warning system that picks up signals of tsunamis directly from the sea-floor.

       It is called Dart-the Deep-ocean Assessment and Reporting of Tsunamis. If seismometers(地震仪) detect an earthquake, the Dart buoys（浮标） will determine what is happening to sea levels, and whether a big wave might be on the way. This information is then sent via satellite to a central location which can organize an alarm. Within 50 minutes of the Haiti earthquake, this system was able to issue an alarm to other countries in the Caribbean to say that a small tsunami had been caused to start, and that was unlikely to affect them.

       Dr Bernard said, “The first 30 minutes following the earthquake, we have to rely on education.” The critical aspects of this are: do you feel the earthquake; do you see the ocean draw down; and do you hear that loud roar? If so, you should run for higher ground.

 “But after the first few minutes, it’s crucial that we have the technology—the measurements to avoid unnecessary evacuation(疏散撤离)and tell people when it is safe to return.” Right now, there are 50 of these Dart buoys all over the globe—four of which are in the Caribbean.

Dr Bernard says that, with 75 to 100 buoys worldwide, this system could provide global tsunami warnings within one hour.

 “That’s for everywhere we know that tsunamis have happened. If we wanted to go to half an hour detection, we could probably double or multiply by four times that number,” he said.

       “In some countries, including Haiti, there may not be enough resources to support a specific tsunami warning centre for something that happens so infrequently.”

       He said that this system was relatively inexpensive to fix and operate.

       “To get it down to an hour for everywhere affected would cost $50m initial investment and then 10% of that to maintain it,” he said.

       “That’s not a terribly expensive system considering the potential savings of lives.”

1.In which section would you probably read the passage in a newspaper?

A. Education and Society                   

B. Culture and Leisure

C. Science and Technology          

D. Health and Medicine

2. How many buoys would at least be needed for global tsunami warnings within half an hour?

A. 150                 

B. 100                  

C. 75                   

D. 50

3.Which of the following can be inferred from the passage?

       A. The system can warn people of the coming of tsunami directly after the earthquake.

       B. We can’t escape the danger of tsunami within 30 minutes following the earthquake.

       C. Each country can easily afford a tsunami warning centre though it seldom happens.

       D. It’s worthwhile to spend money on the warning system for possible savings of lives.

4. Which of the following would be the best title for this passage?

A. Tsunami Assessment               

B. Earthquake detecting

C. Disaster Warning System        

D. Life Saving System

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（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.

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.

The Haitian tsunami gave scientists a chance to find out how well vital and potentially life-saving warning systems were working.

       Noaa’s Pacific Marine Environmental Laboratory has developed a warning system that picks up signals of tsunamis directly from the sea-floor.

       It is called Dart-the Deep-ocean Assessment and Reporting of Tsunamis. If seismometers(地震仪) detect an earthquake, the Dart buoys（浮标） will determine what is happening to sea levels, and whether a big wave might be on the way. This information is then sent via satellite to a central location which can organize an alarm. Within 50 minutes of the Haiti earthquake, this system was able to issue an alarm to other countries in the Caribbean to say that a small tsunami had been caused to start, and that was unlikely to affect them.

       Dr Bernard said, “The first 30 minutes following the earthquake, we have to rely on education.” The critical aspects of this are: do you feel the earthquake; do you see the ocean draw down; and do you hear that loud roar? If so, you should run for higher ground.

 “But after the first few minutes, it’s crucial that we have the technology—the measurements to avoid unnecessary evacuation(疏散撤离)and tell people when it is safe to return.” Right now, there are 50 of these Dart buoys all over the globe—four of which are in the Caribbean.

Dr Bernard says that, with 75 to 100 buoys worldwide, this system could provide global tsunami warnings within one hour.

 “That’s for everywhere we know that tsunamis have happened. If we wanted to go to half an hour detection, we could probably double or multiply by four times that number,” he said.

       “In some countries, including Haiti, there may not be enough resources to support a specific tsunami warning centre for something that happens so infrequently.”

       He said that this system was relatively inexpensive to fix and operate.

       “To get it down to an hour for everywhere affected would cost $50m initial investment and then 10% of that to maintain it,” he said.

       “That’s not a terribly expensive system considering the potential savings of lives.”

In which section would you probably read the passage in a newspaper?

A. Education and Society                   

B. Culture and Leisure

C. Science and Technology          

D. Health and Medicine

How many buoys would at least be needed for global tsunami warnings within half an hour?

A. 150                 

B. 100                  

C. 75                   

D. 50

Which of the following can be inferred from the passage?

       A. The system can warn people of the coming of tsunami directly after the earthquake.

       B. We can’t escape the danger of tsunami within 30 minutes following the earthquake.

       C. Each country can easily afford a tsunami warning centre though it seldom happens.

       D. It’s worthwhile to spend money on the warning system for possible savings of lives.

Which of the following would be the best title for this passage?

A. Tsunami Assessment               

B. Earthquake detecting

C. Disaster Warning System        

D. Life Saving System

The Haitian tsunami gave scientists a chance to find out how well vital and potentially life-saving warning systems were working.
Noaa’s Pacific Marine Environmental Laboratory has developed a warning system that picks up signals of tsunamis directly from the sea-floor.
It is called Dart-the Deep-ocean Assessment and Reporting of Tsunamis. If seismometers(地震仪) detect an earthquake, the Dart buoys（浮标） will determine what is happening to sea levels, and whether a big wave might be on the way. This information is then sent via satellite to a central location which can organize an alarm. Within 50 minutes of the Haiti earthquake, this system was able to issue an alarm to other countries in the Caribbean to say that a small tsunami had been caused to start, and that was unlikely to affect them.
Dr Bernard said, “The first 30 minutes following the earthquake, we have to rely on education.” The critical aspects of this are: do you feel the earthquake; do you see the ocean draw down; and do you hear that loud roar? If so, you should run for higher ground.
“But after the first few minutes, it’s crucial that we have the technology—the measurements to avoid unnecessary evacuation(疏散撤离)and tell people when it is safe to return.” Right now, there are 50 of these Dart buoys all over the globe—four of which are in the Caribbean.
Dr Bernard says that, with 75 to 100 buoys worldwide, this system could provide global tsunami warnings within one hour.
“That’s for everywhere we know that tsunamis have happened. If we wanted to go to half an hour detection, we could probably double or multiply by four times that number,” he said.
“In some countries, including Haiti, there may not be enough resources to support a specific tsunami warning centre for something that happens so infrequently.”
He said that this system was relatively inexpensive to fix and operate.
“To get it down to an hour for everywhere affected would cost $50m initial investment and then 10% of that to maintain it,” he said.
“That’s not a terribly expensive system considering the potential savings of lives.”
【小题1】In which section would you probably read the passage in a newspaper?