For incoming freshmen at western Connecticut's suburban Brookfield High School, lifting a backpack weighed down with textbooks is about to give way to tapping out notes and touching electronic pages on an iPad. A few hours away, every student at Burlington High School near Boston will also start the year with new school-issued ipads, each loaded with electronic textbooks and other online resources in place of traditional texts. Apple officials say they know of more than 600 districts that have launched what are called " one-to-one " programs.

    At Burlington High in suburban Boston, Principal Patrick Larkin says the $500 ipads is better than textbooks in the long term, though he said the school will still use traditional texts in some courses if suitable electronic programs aren't yet available. Larkin said of textbooks, " but they're pretty much outdated the minute they're printed and certainly by the time they're delivered".

    But some experts warn that the districts need to ensure they can support the wireless infrastructure (设施 ), repairs and other costs that accompany a switch to such a tech-heavy approach. Mark Warschauer, an education and informatics(信息学)  professor said,  "I think people will like it.I really don't know anybody in high school that wouldn't want to get an iPad," he said. "We're always using technology at home, then when you're at school it's textbooks. So it's a good way to put all of that together." Districts are varied in their policies on how they police students' use.

    And the nation's textbook publishing industry, accounting for $ 5.5 billion in yearly sales to secondary schools, is taking notice of the trend with its own shift in a competitive race toward developing curriculum specifically for ipads.Jay Dickey, executive director of the Association of American Publishers'schools division, said all of the major textbook publishers are moving toward electronic offerings, but at least in the short term, traditional bound textbooks are here to stay. "I think one of the real key questions that will be answered over the next several years is what sort of things work best in print for students and what sort of things work best digitally."

    One of the problems with passwords (密码) is that users forget them. In an effort to remember them, people use simple things like their dog's names and their birth dates — anything that will give them a clue to remember what their passwords are. But for a hacker(黑客), this is the same as locking your door and leaving the key under the doormat(门口地垫).

    To create a safe password that is easy to remember, follow these simple steps:

    You should never use personal information as part of your password. It is very easy for someone to guess things like your last name and your pet's name.

    With the help of today's computing power, it doesn't take long to try every word in the dictionary and find your password, so you'd better not use real words for your password.

    You can make a password much safer by mixing different types of characters. Use some capital letters along with small letters, numbers and even special characters such as & and %.

    In order not to create a password using different character types that is hard to remember or using a word from the dictionary, you can use a "passphrase(代码)". Think of a sentence from a song or a poem that you like and create a password using the first letters from each word. For example, instead of just setting a password like "yr$1Hes", you can take a sentence such as "I like to read the about.com Internet network security website" and make it a password like "il2rta!nsw" by using the number "2" for the word "to" and using "!" in place of "Internet". You can use many characters types and create a safe password that is hard to guess, but much easier for you to remember.

    People all need friends because nobody wants to be lonely and a friend can help you in good and bad times. You have made friends since childhood, but you still don't know who your true friends are. Here are some signs to tell you if your friend is a true friend:

Always honest

    Honesty is important to keep a relationship alive. A true friend always tells you the truth. It may be hard sometimes but lying can destroy a friendship. It is important that your friend speaks honestly and never makes up stories.

    There are always periods in your life when you have problems or difficulties. A true friend will always have time to listen to your problems and give advice. It may not be able to offer a solution to your problems but the fact that your friend made time to listen is a sign he/she cares for you. Your friend is not a true friend if he/she can never make time for you when you are in trouble. You also need to be reasonable and accept that your friend also has other things to do so he/she can't always listen immediately to your problems.

Always respectful (尊敬的)

    A true friend will always respect your opinion no matter whether he/she agrees or not. Your true friend may disagree but never insists that he/she is correct.

Always understanding

    It is possible that some problems will arise between you and your friend. A true friend will always be forgiving (体谅的) and understanding even if it isn't his/her fault. We are all different people and we all make mistakes. A true friend is always forgiving and understanding because he/she doesn't want to take the risk of losing his/her best friend.

    The final results of Best-Ever Teen Fiction vote are in. While it's no surprise to see Harry Potter and The Hunger Games series on top, this year's list also highlights some writers we weren't as familiar with. For example, John Green, author of The Fault in Our Stars, appears five times in the top 100.

    Summer, like youth, passes quickly. But the books we read when we're young can stay with us for a lifetime. The following are the top 4 on the list. Enjoy.

    ⒈Harry Potter series

    The Harry Potter books make up the popular series written by J. K. Rowing. The series includes seven books. The books concern a wizard (魔法师) called Harry Potter and his journey through Hogwarts School of Witchcraft and Wizardry. The stories tell of him over coming dangerous obstacles to defeat the dark wizard Lord Voldemort who killed his parents when Harry was 15 months old.

    ⒉The Hunger Games series

    In the ruins of a future North America, a young girl is picked to leave her poor district and travel to Capitol for a battle to the death in the cruel Hunger Games. But for Katniss Everdeen, the main character in this series by Suzanne Collins, winning the Games only puts her deeper in danger as the strict social order of Panem begins to unravel (瓦解).

    ⒊To Kill a Mockingbird

    Author Harper Lee explores racial tensions in the fictional "tired old town" of Maycomb, Ala. , through the eyes of 6-year-old Scout Finch. As her lawyer father, Atticus, defends a black man accused of a crime, Scout and her friends learn about the unjust treatment of African-Americans – and their mysterious neighbor, Boo Radley.

    ⒋The fault in Our Stars

    Hazel Grace, a teenage girl, has got all sorts of cancer inside her body, and her lungs aren't working very well. She knows she is dying and doesn't live in hope any more. When a man named Augustus Waters suddenly appears at the Cancer Kid Support Group, Hazel's story is about to be completely rewritten.

Imperial Mountain Resort in Chengde used to be the resort of emperors of Qing Dynasty. Situated in the city of Chengde in northeastern Hebei Province, the resort is {#blank#}1{#/blank#} (convenient) accessible by either train or long-distance bus. And the resort, {#blank#}2{#/blank#} constructions started in 1703 and took 89 years to complete, is regarded as one of China's four famous gardens.

Surrounded by lakes, forest and mountains, it is China's {#blank#}3{#/blank#} (large) existing imperial garden and the former summer capital of the Qing Dynasty, {#blank#}4{#/blank#} (cover) an area of 5.64 million square meters. The size of Chengde Summer Resort is as big as that of the Forbidden City and the Summer Palace {#blank#}5{#/blank#} (combine). The 10-km-long wall around it winds its way through plains and high mountains {#blank#}6{#/blank#} the Great Wall.

The resort and the 12 Buddhist temples at its periphery (外围) were built during the Qing Dynasty. It served as the second political center of the Qing imperial court {#blank#}7{#/blank#} the emperors of the early Qing Dynasty often spent their summers there, conducting state {#blank#}8{#/blank#} (affair) and engaging in important political activities. The resort and its outer temples and palaces have made Chengde {#blank#}9{#/blank#} famous historical and cultural city, and one of China's leading scenic spots. The Imperial Resort {#blank#}10{#/blank#} (list) in the directory of the world's cultural heritages in 1994.

People believe that climbing can do good {#blank#}1{#/blank#} health.Where can you learn the skill of climbing then?If you think that you have to go to the mountains{#blank#}2{#/blank#}(learn) how to climb,you're wrong.Many Americans are learning to climb in city gyms.The climbing wall goes straight up and has small holding places for hands and feet.

How do people climb the wall?To climb,you need special shoes{#blank#}3{#/blank#} a harness(系带) around your chest to hold you.There are ropes {#blank#}4{#/blank#} (tie) to your harness.The ropes hold you in place so that you don't fall.A beginner's wall is usually about 15 feet high,and you climb straight up.There are small{#blank#}5{#/blank#}(piece) of metal that stick out for you to stand on and hold on to.Sometimes it's easy to see the new piece of metal.Sometimes,it's not.The most difficult is your fear.It's normal for humans to be afraid of{#blank#}6{#/blank#}(fall),so it's difficult not to feel fear.But when you move away from the wall,the ropes hold you,and you begin to feel safe.You move{#blank#}7{#/blank#}(slow) until you reach the top.

Climbing {#blank#}8{#/blank#}see your whole body,especially your arms and legs.This sport gives your body {#blank#}9{#/blank#} complete workout.When you climb,both your mind and your body can become{#blank#}10{#/blank#}(strong).