Of all the websites,one that has attracted attention recently is _ .Most of this attention has come from the media and tells every reason why the website should be shut down.The threat of internet predators is indeed a tough reality,but shutting down the site is not the answer.If _ 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 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 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 most information that is safe is your first name and province.Anything more is basically inviting a predator into your life. Another big issue 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. The safest basic personal information that you can share online is . A) your home address and birthday B) school address and your first name C) your first name and province D) your province and cell phone number
C
Federal regulators Wednesday approved a plan to create a nationwide emergence alert system using text messages delivered to cell phones. Text messages have exploded in popularity in recent years, particularly among young people. The wireless industry's trade association, CTIA, estimates more than 48 billion text messages are sent each month. The plan comes from the Warning Alert and Response Network Act, a 2006 federal law that requires improvements to the nation's emergency alert system. The act tasked the Federal Communications Commission (FCC) with coming up with new ways to alert the public about emergencies. "The ability to deliver accurate and timely warnings and alerts through cell phones and other mobile services is an important next step in our efforts to help ensure that the American public has the information they need to take action to protect themselves and their families before, and during, disasters and other emergencies," FCC Chairman Kevin Martin said following approval of the plan. Participation in the alert system by carriers--telecommunications companies is voluntary, but it has received solid support from the wireless industry. The program would be optional for cell phone users. They also may not be charged for receiving alerts. There would be three different types of messages, according to the rules. The first would be a national alert from the president, likely involving a terrorist attack or natural disaster. The second would involve "approaching threats," which could include natural disasters like hurricanes or storms or even university shootings. The third would be reserved for child abduction emergencies, or so-called Amber Alerts. The service could be in place by 2014. Which of the following would be the best title for the text? A) Cell Phone Alerts Protecting Students. B) Cell Phone Alerts by Wireless Industry. C) Cell Phone Alerts of National Disasters. D) Cell Phone Alerts Coming Soon.
D
Q: "I've changed my mind.I wanted to have a telescope,but now I want my dad back." Lucien Lawrence's letter to his father for Christmas written after his father had been knifed to death outside his school gate,must have touched everyone's heart.Lucien went on to say that without his father he couldn't see the stars in the sky.When those whom we love depart from us,we cannot see the stars for a while. But Lucien,the stars are still there,and one day,when you are older and your tears have gone,you will see them again.And,in a strange way,I expect that you will find your father there,too,in your mind and heart.I find that my parents,who died years ago,still figure in many of my dreams and that I think of them perhaps more than I ever did when they were alive.I still live to please them and I'm still surprised by their reactions.I remember that when I became a professor,I was so proud,or rather so pleased with myself that I couldn't wait to cable my parents.The reply was a long time in coming,but when it did,all my mother said was "I hope this means that now you will have more time for the children!" I haven't forgotten.The values of my parents still live on. It makes me pause and think about how I will live on in the hearts and minds of my children and of those for whom I care.Would I have been as ready as Philip Lawrence have been to face the aggressors,and to lay down my life for those in my care?How many people would want me back for Christmas?It's a serious thought,one to give me pause. I pray silently,sometimes,in the dead of night,that ancient cry of a poet "Deliver my soul from the sword,and my darling from the power of the dog." Yet I know the death comes to us all,and sometimes comes suddenly.We must therefore plan to live forever,but live as if we will die tomorrow.We live on,I'm sure,in the lives of those we love,and therefore we ought to have a care for what they will remember and what they will treasure.If more parents knew this in their hearts to be true,there might be fewer knives on our streets today. In the author's opinion,the value of a person's life is _ . A) to leave a precious memory to those he loves and cares for B) to have a high sense of duty to the whole society C) to care for what others will remember and treasure D) to share happiness and sadness with his family
A: A
Q: The following conversation is between Susan Russell-Robinson from the US Geological Survey and Barbara Reynolds from USA Today . Q: Why , after 600 years of no activity , did Mount Pinatubo in Philippines erupt in 1991 ? A: Volcanoes each have their own eruption styles . This volcano probably has a rule which makes it erupt in the order of every 500 to 1000 years , but a volcano in Hawaii seems to erupt every year , and some of the Alaskan volcanoes might erupt every 10 or 20 years . Q: So nothing caused it ? A: There's nothing out of the ordinary . If you were to take an ordinary calendar year , 50 to 75 or 80 volcanoes erupt around the world every year . There are 20 to 30 volcanoes every month that show signs of unrest . That might be a full-blown eruption or a whole host of activities like that . Q: What is "the ring of fire" ? A: If you look at where active volcanoes are placed around the world , there are somewhere between 500 and 600 of them . There is what appears to be almost a necklace that goes around the Pacific Ocean . It makes a ring where 60% of the world's volcanoes lie . Q: Why such a concentration there ? A: That's based on a theory that the oceans and the continents are like separate pieces . When continents and when that happens it seems to produce magma at depth and then you have volcanoes in the same ring . Barbara Reynolds' main purpose here is _ . A) to show how dangerous volcanoes are to the world B) to learn what signs a volcano gives us before its eruption C) to warn the world of the existence of "the ring of fire" D) to introduce some general idea of volcanoes to the public
A: D