Of all the websites, one that has attracted attention recently is myspace.com. Most of this attention has come from the media and tells every reason why the website should be shut down. The danger of internet predators(窃掠者) is indeed a tough reality, but shutting down the site is not the answer. If myspace.com were shut down, another site would quickly take its place. Therefore, the right way is to teach teens how to use the site safely and educate them about who may be predators and how to avoid them.
The key to staying safe on the Internet is to make sure that your profile(个人资料) is secure. The simplest way is to change the privacy setting on your profile to “private”, which protects your information so that only the people on your friend list can view it. Although this is effective, it is not perfect. Predators can find ways to view your profile if they really want to, whether through hacking(非法侵入) in or figuring out their way onto your friend list. Thus, you should never post too much personal information. Some people actually post their home and school addresses, date of birth, and other personal information, often letting predators know exactly where they will be and when. The safest information is your first name and province. Anything more is basically inviting a predator into your life.
Another big problem is photos. I suggest completely skipping photos and never posting a photo of a friend online without asking permission.
Most importantly, never, under any circumstances, agree to a real-life meeting with anyone you meet online. No matter how well you think you know this person, there are no guarantees that they have told the truth. But you could feel free to chat with people you meet on the site, but just remember that not everyone is who they say they are. Hopefully, the next time you edit your profile, you’ll be more informed about the dangers of Internet predators and take the steps to defend yourself.
Lastly, do not send money to anyone you meet online. A common scam among Internet criminals is to request to pay for “expensive Internet charges” or “unreasonable Internet cafe fees”. While it is indeed true that many countries in Eastern Europe, Asia, Africa and South America do not yet have Internet service readily available in all cities and towns, a sincere friend from one of these countries will be more than happy to pay their own Internet charges. Never, under any circumstances, should you send money to a stranger from another country(or within your own country for that matter) who claims monetary assistance is required to continue their contact with you.Kids can avoid web predators successfully by________.
| A．attracting more public attention |
| B．shutting down the “myspace.com” |
| C．learning different ways to try other sites |
| D．recognizing and getting away from them |
We can learn from the text that________.
| A．everybody you meet online isn’t honest and reliable |
| B．it is not acceptable to post a photo of a friend online |
| C．it is not safe to chat with grown-ups on the website |
| D．only you and your friends can view your personal profile |
What does the underlined word “scam” in the last paragraph mean?
| A．A thing that you can have two choices. |
| B．An unpleasant task that tests one’s ability. |
| C．A possibility of something happening. |
| D．An illegal plan for making money. |
What could be the best title of this passage?
| A．Personal Safety. | B．Web Safety for Teens. |
| C．Web Hackers in the past. | D．Predators’ Tricks. |
Karen,grown up in a very traditional family in the western United States,maintained high moral(道德的) standards throughout her youth.In 1984,at the age of 23,she married Bill.They were blessed with two children,a boy and a girl.
By 1991 their love had deepened,and they were happy.Later that year,Bill developed a white spot on his tongue.He visited a doctor.
One day shortly after that,Bill called Karen to sit beside him.He said with tears in his eyes that he loved her and wanted to live forever with her.The doctor suspected that he had been infected with HIV,the virus that leads to AIDS.
The family was tested,Bill and Karen’s results were positive.Bill had become infected before he met Karen;then he passed the virus on to Karen.The children’s results were negative.Within three years,Bill was dead.“I don’t know how to express what it is like to watch the once handsome man you love and intend to live with forever dying slowly.I cried many nights.He died three months short of ten years of our marriage,”says Karen.Though a doctor told Karen that she would soon follow her husband into death,she is still alive.The infection has progressed to the early stages of AIDS.
Karen is but one of about 30 million people now living with HIV/AIDS,a figure larger than the combined populations of Australia,Ireland and Paraguay.According to one UN report,Africa has 21 million of these victims.By the turn of the century that number could reach 40million and the disease will bring on the greatest disaster in human history.Of the world’s sexually active adults aged 15 to 49,1 in 100 has already been infected with HIV.Of these,only 1 in 10 realizes that he or she is infected.In some parts of Africa,25 percent of the adults are infected.
Since the beginning of the spread of AIDS in 1981,about 11.7 million people have died of it.It is roughly calculated that in 1997 alone,about 2.3 million people died of it.Nevertheless,there are fresh reasons for optimism in the battle against AIDS.During the past few years,there has been a drop in new AIDS cases in wealthy nations.In addition,promising drugs hold out hope of better health and longer life.By telling the story of Karen,the author intends to______.
| A．warn people against high risk behaviors |
| B．stress the importance of medical tests |
| C．express sympathy for AIDS victims |
| D．show the consequences of AIDS |
The underlined part in Paragraph 1 most probably means “_______”.
| A．were lucky in having |
| B．were asked to adopt |
| C．regretted having |
| D．gave birth to |
Bill was suspected of being infected with HIV after______.
| A．he got married to Karen |
| B．the family members were tested |
| C．Karen persuaded him to see the doctor |
| D．he found something wrong with his tongue |
It can be concluded from the passage that______.
| A．promising drugs will soon stop AIDS |
| B．the spread of AIDS could be controlled |
| C．it is hopeless to win the battle against AIDS |
| D．the death rate of AIDS patients has been reduced |
Dogs wag(摇摆) their tails in different directions depending on whether they are excited and wanting to move forward or threatened and thinking of moving back,a study has found.
Researchers in Italy examined the tail wagging behaviour of 30 dogs,catching their responses to a range of stimuli(刺激物) with video cameras.To conduct the study they chose 15 male dogs and 15 female ones aged between one and six years.The dogs were all family pets whose owners had allowed them to take part in the experiment at Ban University.The dogs were placed in a large wooden box with an opening at the front to allow for them to view various stimuli.They were tested one at a time.
The researchers led by Professor Giorgio Vallortigara of the University of Trieste found that when the dogs were shown their owners-a positive experience-their tails wagged energetically to the right side.When they were shown an unfamiliar human they wagged to the right,but with somewhat less enthusiasm.The appearance of a cat again caused a right-hand side wag,although with less intensity again.The appearance of a large unfamiliar dog,similar to a German shepherd,changed the direction of tail wagging to the left.Reseachers supposed the dog was thinking of moving back.When the dogs were not shown any stimuli they tended to wag their tails to the left,suggesting they preferred company.While the changes in the tail wagging were not easily noticed without the aid of video,it was thought that the findings could help people judge the mood(心情) of dogs.Computer and video systems,for example,could be used by professional dog trainers to determine the mood of dogs that they were required to approach.
| 1． |
The video cameras were used to catch the dogs' responses because.
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| 2． |
The underlined word "intensity" in the passage means.
|
| 3． |
When there are no stimuli,a dog will.
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| 4． |
The underlined word "they" refers to.
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| 5． |
The purpose of doing the experiment is.
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The best title of the 3rd advertisement would be _______.
| A．Training at Home | B．Learning at Home |
| C．Recording Work | D．Working at Home |
According to the information above,if your child has hearing problems,you can turn to _______.
| A．At-Home Profession Crop |
| B．Globe Insurance Company |
| C．Bradford Publications |
| D．American Inventors Corp |
From the advertisements above,we can learn that _______.
| A．Globe Insurance Company has a history of 51 years |
| B．as a medical transcriptionist,you may earn $25 000 a month |
| C．Bradford Publications offers a treatment to hearing impaired parents |
| D．you can visit www.aic.com when you invent a new model of hearing aid |
Scientists have found what look like caves on Mars(火星),and say they could be protecting life from the planet's terrible environment.
Images of the Mars caves from Northern
Arizona University
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 lava 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 lava to flow out,forming caves.
| 1． |
What does the passage mainly talk about?（）
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| 2． |
We can learn from the passage that（）
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| 3． |
According to the passage,Dr.Clarke was so excited because（）
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| 4． |
Necessary conditions for life on Mars mentioned in the passage may include（）
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A small town in southwest Britain is banning(禁止) plastic bags in an attempt to help the environment and cut waste—a step that environmentalists believe is a first for Europe.
Shopkeepers in Modbury population 1500,agreed to stop handing out disposable plastic bags to customers on Saturday.They said paper sacks and cloth carrier bags would be offered instead.
Last month,San Franciso became the first U.S. city to ban plastic grocery bags.Internationally,laws to discourage the use of plastic bags have been passed in parts of South Africa and Ireland,where governments either tax shoppers who use them or fine companies that hand them out.Bangladesh already bans them,and so do at least 30 remote Alaskan villages.
Modbury,about 225 miles southwest of London,has also declared a bag amnesty(宽限期),allowing local people to hand in plastic bags that have piled up at home.They will be sent for traveling.
The Modbury ban was the idea of Rebecca Hosking,who saw the effect of bags on marine life while working in the Pacific as a wildlife camerawoman.She said response(反应) in the town so far had been “really positive”.
“Modbury is quite an old-fashioned town and a lot of people have wicker baskets to go out shopping anyway,”Hosking told Sky News Television.
The Worldwatch Institute,an environmental research agency,states that 100 billion plastic bags are thrown away each year in the United States alone.More than 500 billion are used yearly around the world.What was Rebecca Hosking?
| A．A lawyer. | B．An environmentalist. |
| C．A sailor. | D．A photographer. |
The underlined word “disposable” in the passage probably means _______.
| A．acceptable | B．valuable |
| C．throw-away | D．long-lasting |
It can be inferred from the passage that _______.
| A．most of the people in Modbury continue to use plastic bags |
| B．fewer and fewer plastic bags will be used in the world |
| C．San Francisco is the first city to ban plastic bags in the world |
| D．most countries in the world have passed laws to ban plastic bags |
Which of the following would be the best title of the passage?
| A．Environmental Protection |
| B．Big Cities Banning Plastic Bags |
| C．Effect of Plastic Bags on Sea Animals |
| D．British Town Banning Plastic Bags |