How to Survive High School

    High school can be terrible phase if you get it all wrong. Find out how to survive high school with a few easy tips.

    ① Be Yourself.

    High school is a fun time to make new friends, meet new people, date and socialize. Make friends with all kinds of people and not just a group which you are comfortable with. Most peer pressure cases are because of the weak image created by freshmen. {#blank#}1{#/blank#} Don't give in to anyone's wants.

    ② {#blank#}2{#/blank#}

    Choose your friends carefully and make sure you won't get influenced by anyone. Socialize, but by judging who you can connect to. You will find friends, but stay away from the ones who don't want to be your friends as a bad company is tempting, but the good one is true.

    ③ Be Optimistic.

    There is nothing better than having a smile on your face whenever you can. {#blank#}3{#/blank#} Don't be afraid to make friends, don't get aggressive or personal with anyone and treat others the way you want to be treated. Respect your teachers and classmates and try to be helpful if you want the same in return.

    ④ Be Confident.

    When you believe in yourself, others believe in you. Talk, walk and address people confidently and this will create a strong image about you. {#blank#}4{#/blank#} Be creative and unique and learn to set trends. Confidence is one quality you grow with, and people respect you for that.

    ⑤ Love High School.

    {#blank#}5{#/blank#} Make the most out of it, and you will never get those moments back. Come up with frank ideas, get a detention, top your class, make the best friends, drink, go to prom, party, but just make as many memories as you can!

    With these tips to survive high school, you will surely be proud of graduating as an all-round approaching adult.

A. And always wear your smile

B. Keep Good Company

C. Just be yourself and create a strong self-image

D. Practice positive thinking

E. Do your thing, and don't imitate others

F. Fall in love with it

G. Study as hard as you can in your spare time

    Here is your best chance to travel around the UK in 2012: More than 200 B&Bs（bed & breakfast）across England, Scotland, Wales and Northern Ireland are selected to offer you amazing services for your stay at their lowest prices! Don't miss it. Just collect the vouchers（活动券）in our B&B Daily printed from 01/04/2012 to 07/04/2012 and book the stays for your travel following the terms and conditions below:

    The offer includes a room for the night and a breakfast the next morning.

The offer is of two kinds: ￡20 per room, valid（有效的）during stay period of 02/04/2012—31/05/2012 and then again 01/09/2012—31/10/2012；￡35 per room, per night, valid during stay period of 01/06/2012—31/08/2012.

    The offer is valid for a basic twin or double room only.

    The stay must be booked directly with the chosen B&Bs before 28/04/2012.

    Each voucher can only be used by the holder to book one room for one night.

    If voucher holders book either the ￡20 or ￡35 per room per night, any additional services such as lunch, evening meal or activities may require an extra charge. But these are not required in order to take up the offer. Please check directly with your chosen B&Bs to see what extra services are available.

    Vouchers must be presented on arrival. If no vouchers are presented, the     B&Bs may reserve（保留）the right to charge at full price for every night of stay.

    Vouchers may not be used together with any other offer.

    The voucher holders must pay for the stay in full at the time of booking. Additional ￡10 may be paid to confirm（确认）the booking and will be returned on arrival.

    The B&Bs reserve the right to refuse voucher holders' bookings for people under the age of 18.

    Nowadays people are facing lots of threats（威胁）all over the world.

   A serious threat to farmers in many parts of the world is erosion（侵蚀）.Erosion happens if a large area of land is cleared of trees and is then badly treated by the farmers.The rain and winds may gradually wash away,or blow away much of the topsoil.When this happens,crops of wheat and corn become weaker and weaker until nothing grows well.If erosion continues,it will turn good land into a desert.

    In the past,when erosion appeared,farmers sometimes moved to a new place to farm.Sometimes they could not move,but continued to try to grow food in the unhealthy soil.This caused them to sink into poverty.Soon some people realized that there was little rich,fertile soil in the world.The government began to try to stop erosion.

    One of the first experiments to stop erosion began in the United States in 1933.The experiment was carried out in the area of the Tennessee River.Flood and bad farming in this area had ruined the land that had once been rich.As a result,most of the people living around the Tennessee River were very poor.

The government built big dams across the river and stored the water for use during the dry season,when there was no rain.The government workers also helped the farmers fertilize their soil and to learn new farming methods which could stop erosion.

    In the beginning,the farmers were not interested.But soon,good healthy crops began to appear on the land where new methods were used.Ten years after that the crops were extremely good.The great success of this experiment led to similar projects in other parts of the world.

With the development of science and technology,people are trying to get rid of all the threats they are facing. However,it's not an easy job,because at the same time people are polluting their homeland.

    The National Air and Space Museum in Washington，DC has thousands of objects on display，including the 1903 Wright Flyer，Charles Lindbergh's Spirit of St．Louis，the Apollo 11 Command Module Columbia，and a lunar rock you can touch．In addition to our exhibition galleries，you may want to visit the Albert Einstein Planetarium，Lockheed Martin IMAX Theater，and the Public Observatory on the east end．There are many things to do at the Museum in DC．We offer daily tours and educational activities for both children and adults．We also have scheduled lectures and events throughout the year．

Hours & Admission：Open every day except December 25．Admission is free．

    Regular hours：10：00 am to 5：30 pm

    Extended Hours：10：00 am to 7：30 pm

    December 26-30，2016

    March 30-April 20，2017

    Fridays and Saturdays，April 24-May 16，2017

    May 17-September 7，2017

    VISITING TIPS：

    Limit the Number of Bags：All visitors are screened through metal detectors upon entry．The fewer items you bring inside the Museum，the faster your entry．Before you visit，please review the list of prohibited items，which include pocket knives and tripods（三脚架）．Visitors carrying prohibited items will not be allowed inside the museum，so please leave them at home or in your car．

    No food and Drink：Only bottled water is permitted in the Museum．You may only consume food and other drinks in the Food Court，not in the Museum．Groups who bring food are encouraged to picnic on the National Mall．

Please Take Photos：You are welcome to take photos for personal use．However，tripods and monopods（单脚架） are not permitted without approval．

    First Aid：The Museum has a First Aid office and a nurse on duty．Please contact the nearest security officer or the Welcome Center for assistance．

    Visit the Welcome Center：At our Welcome Center in the South Lobby，staff and volunteers can answer any questions you have during your visit．

    Phone：202-633-2214

    E-mail：NASM-VisitorServices@si．edu

    Get Involved! Make a Donation!

    So what is rewilding?

    Imagine our natural homes growing instead of shrinking. Imagine species (物种) diversifying instead of declining. That's rewilding. Rewilding is ecological restoration. Rewilding offers hope for wildlife, humans and the planet.

    Why is rewilding important and necessary?

    Our natural ecology is broken. The places where you would expect wildlife to exist have been reduced to wet deserts. The seabed has been destroyed and there have been no living creatures any more.

    Our wildlife is disappearing. Many wonderful species have declined over the past century. We've lost more of our large animals than any European country.

    We need keystone species. These vital species, including top predators (食肉动物), drive ecological processes. Their loss has worsened our living systems.

    Nature looks after us. Good natural ecology can provide us with clean air and water, prevent flooding and store carbon. Rewilding can leave the world in a better state than it is today.

    What are challenges?

    As a long-term project, our "rewilding britain" has its challenges. Many people are not interested, because we have got used to the lack of native forests. Many farmers oppose the idea. They thought it a crazy idea to bring back predators because they would start killing farm animals. It takes time to educate them. Above all, we need money! So we need your help!

    Make a donation.

    Help us bring back living systems and restore wild nature!

With your help we can…

    Open up new chances for rewilding and push for change.

    Develop tools to educate, influence and spread the word.

    Thanks for your support.

Learning New Vocabulary during Deep Sleep

    Sleeping time is sometimes considered unproductive time. This raises the question whether the time spent asleep could be used more productively, e.g. for learning a new language? Up-to-now sleep research focused on the stabilization and strengthening of memories that had been formed during wakefulness. However, learning during sleep has rarely been examined. There is enough evidence for wake-learned information undergoing a revision by replay in the sleeping brain. The replay during sleep strengthens the still weak memory and leaves the newly acquired information in the pre-existing store of knowledge.

    If re-play during sleep improves the storage of wake-learned information, then first-play, i.e. the initial processing of new information, should also be possible during sleep.

    The research group of Katharina Henke examined whether a sleeping person is able to form new semantic（语义的）associations between played foreign words and translation words during the brain cells' active states, the so-called "Up-states." It turned out to be that what they thought was reasonable. When we reach deep sleep stages, our brain cells progressively coordinate their activity. During deep sleep, the brain cells are commonly active for a brief period of time before they jointly enter into a state of brief inactivity. The active state is called "Up-state" and the inactive state "Down-state". The two states alternate（交替）about every half-second.

    New evidence for sleep-learning challenges current theories of sleep and theories of memory. The concept of sleep that we are separated from the physical environment is no longer reasonable. "It's false that complex learning be impossible during deep sleep," says Simon Ruch, co-first-author. "In how far and with what consequences deep sleep can be applied for the acquisition of new information will be a topic of research in upcoming years," says Katharina Henke.

    The research group of Katharina Henke is part of the Interfaculty Research Cooperation (IRC). Thirteen research groups in medicine, biology and psychology are part of the IRC. The aim of these research groups is to gain a better understanding of the mechanisms（原理）involved in sleep and consciousness.