In our daily life, we have developed a lot of habits, such as, eating habit, study habit, reading habit, etc. However, taking the time to develop a sleep habit is probably the last thing on your mind and some sleep advice simply can't be forgotten. {#blank#}1{#/blank#}.

Watching TV until you fall asleep

    It has nothing to do with what you watch —TV news isn't a better pre-sleep choice than TV series. {#blank#}2{#/blank#}. The bright light keeps you awake all the night. So even if you nod off (in front of the TV, for example), you probably won't stay asleep for long.

Sleeping with pets

    {#blank#}3{#/blank#}. They get comfortable, and then they move. This goes on all night, and whether you admit it or not, it interrupts your ability to get the level of sleep needed to feel rested.

Eating fatty, heavy foods too close to bedtime

    Heartburn (烧心，胃痛) strikes anyone of any age, but it's the most common GI disorder (胃肠失调) in older adults. If you've ever tried to go to sleep after eating a fatty meal, you've probably found the discomfort of stomach preventing you from falling asleep or staying asleep.

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    Remember how poorly you sleep when you have a fever—turning over and over again, never really feeling rested? Well, heavy exercise too close to bedtime has the same effect — it raises your body temperature so that your sleep is disturbed until your body temperature drops to normal, which may take several hours.

Accepting snoring (打呼噜) as normal sleep behavior

    Snoring may seem as common as breathing, but it's considered the biggest sleep killer, and it's linked to several causes: sleeping on your back, being overweight, having a cold, drinking, or taking drugs. {#blank#}5{#/blank#}. For the snorer, it disturbs sleep by awakening him/her every so often in order to breathe normally. For the partner, the noise can be unbearable.

    Glastonbury Festival, one of the pioneer festivals, is famous not only for its amazing bands, but also for its wonderful performances in many fields surrounding (围绕) the stages. It attracts over 130,000 people every year, who join in the three-day party to celebrate the summer solstice, the longest day of the year.

    Glastonbury Festival has been held on Worthy Farm in Somerset since 1970. This year, all sorts of singers and bands were there, from the likes of Beyoncé, Jessie J, to my favorite — Paolo Nutini, who I really wish I could have met!

    We drove straight in to one of the muddiest (泥泞的) Glastonbury Festivals ever! We came to our camp site, carrying enough clothes for a weekend of extreme weather conditions, and spent an hour or so putting up the tent. On the second day it began to rain and didn't stop for the rest of the day. We sat in the tent waiting for it to stop, and after several hours we realized that it wouldn't. When the need for food became too strong we put on boots and raincoats and made our way across many muddy fields.

    There is something for everyone at the festival — my favourite place is the Circus Field, which is full of interactive (互动的) performances. Also, I love the Kidz Field, where famous CBBC stars perform, and where you can get your face painted then run around on a climbing frame (框架) with dragons.

    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.

    Yosemite is a national park in California. It is very beautiful and big. The park includes more than 760,000 acres (英亩) in the California Mountains. Most of the park is wild (荒凉的).

    The part of Yosemite that everyone likes is Yosemite Valley. It is a small valley that is 7 miles long and less than 1 mile wide. It has tall rock walls and streams that flow down in waterfalls. More than two million visitors come to the valley each year.

    It's said that the number of visitors is more than the land can hold. The valley has 4,500 camping places. It has a hotel that can hold 4,000 families. This is still not enough to serve all of the visitors. The valley has grown so big that it has a lot of traffic.

    A worker says the park is trying to keep the beauty of the park and let everyone visit. Some areas have been rounded up (圈起来) to keep people away and planted with seeds to try to keep them beautiful.

    A former worker thinks Yosemite should get more money to take better care of the park. He would also like to teach people what the park service is trying to do.

    Some people are trying to save Yosemite Valley. A plan has been made to remove some buildings. There will be fewer cars allowed inside the park. More buses will help get people around.

    Nuclear power's danger to health, safety, and even life itself can be summed up in one word: radiation.

    Nuclear radiation has a certain mystery about it, partly because it cannot be detected by human senses. It can't be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we can't detect them, sense them, without a radio receiver. Similarly, we can't sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.

    At very high levels, radiation can kill an animal or human being immediately by killing masses of cells in vital organs. But even the lowest levels can do serious damage. There is no levels of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be serious. This is the case when only a few cells are hit, and if they are killed immediately. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They can grow into cancer. Sometimes this does not show up for many years.

    This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the victim being aware at the time that damage has occurred. A person can be irradiated(辐射)and feel fine, then die for cancer five, ten, or twenty years later as a result. Or a child can be born weak as a result of radiation absorbed by its grandparents.

    Radiation can hurt us. We must know the truth.

    Most airlines go all out to ensure their passengers have the best possible flight experience. Now, Europe's low-budget airline, easyJet, wants to extend the positive experience beyond the plane ride with “Sneakairs” —smart shoes that allow visitors to explore new cities and towns without ever looking at a map.

    To transform Sneakairs from an ordinary shoe to a tour guide，all the wearer has to do is enter his or her desired destination into the easyJet smartphone app. A built-in GPS will determine the wearer's starting location while the Google Maps navigation (导航)tool will help chart the best route. Whenever a change of direction is necessary, the app will communicate with the appropriate shoe via the Bluetooth and cause it to vibrate(振动). For example, if the wearer needs to turn right, he/she will feel the sensation in the right shoe. Should the user miss the turn, the smart shoes will both vibrate at the same time, reminding him/her to change course.

    Visitors that wander off the suggested path or decide to take a break for a cup of coffee or a meal have nothing to worry about. The smart app will automatically determine the new location and chart out a new route. Once the desired destination is reached, Sneakairs will vibrate three times to inform the user of the arrival and then go back to being ordinary shoes—until their navigation services are needed again!

    Sneakairs is certainly not the first navigation shoe in the market. However, easyJet is the first airline to offer them to passengers just as they are about to land in an unknown city. However, before Sneakairs can go mainstream, the easyJet team still needs to make some adjustments. Among the challenges that need to be addressed is the smart shoe's three-hour battery life, which is hardly enough for a tourist to catch all the delights a new city or town has to offer!