With all the wars, fighting and sadness in the world today, it's not only necessary, but also essential to have a good sense of humor just to help us get through each and every day of our lives. Putting a smile on someone's face when you know they are feeling down in the dump, makes me feel good and warms my heart.

    How would you feel if you could not joke around with your wife, husband, child, co-worker, neighbor, close friends, or even just someone that you are standing in line with at your corner store? I am always saying things that make others smile or laugh, even if I don't know the person I'm joking around with. My Grandma always found humor in everything she did, even if it was the hardest job anyone could imagine. This not only relieves stress in any situation, but also is common courtesy(礼貌)to speak to others that are around you.

    I know of a few people that don't have a funny bone in their bodies, as they say. Everyone around them could be rolling on the floor after hearing a great joke and they would sit there without the s lightest smile on their face. They don't get the joke that makes others laugh. I am busting a gut while they just sit there, looking at me as if I were from outer space. How can people not get a really funny joke?

    Laughing is essential to keep your stress levels under control. Without humor we would find ourselves with a lot of psychological problems, or on a lot of medications to keep us from going crazy. There is too much sadness in this present world. It drives people crazy. We all need to find a way to ignore the sadness and bring a little light into our lives. So, I believe our best medicine is to get together and tell some jokes and have some fun laughing together.

    I was reading these interesting stories behind a group of great logos（商标） in the world. Personally Nike is my favorite one﹣it's so simple. And I liked the stories behind them, which made me forget all other things. McDonald's, Apple, and Mercedes Benz own great logos as well, and they are among my favorites.

    Nike

    In the Greek myth, Nike is the goddess of victory and the source of inspiration for soldiers. This logo represents the wing in the famous statue of the Greek goddess.  Nike's logo was designed by Carolyn Davidson in 1971 for﹩35, and was registered as a trademark in 1995.

    McDonald's

    The logo was designed in 1962 by Jim Schindler to resemble the arch shaped （拱形的） signs on the side of the company's then walk﹣up hamburger stand. Later on, the two golden arches were combined together to form the M. The McDonald's name was added to the logo in 1968.

    Apple

    There are different stories behind Apple's logo. The first logo was a reference to the religious story of Adam and Eve, in which the apple represented the fruit of the Tree of Knowledge. One year later, the second logo was designed in 1977 by Steven Jobs and Ronald Wayne, and it described Sir Isaac Newton sitting under an apple tree. This logo didn't stay long. One year later it was replaced almost immediately by graphic designer Rob Janoff's "rainbow apple",  a rainbow﹣colored silhouette （轮廓） of an apple with a bite taken out of it. And then the rainbow﹣colored apple was replaced by the one﹣colored logo in 1998. It has not been changed so far.

    Mercedes Benz

    The Mercedes Benz logo, which was originally created by Gottlieb Daimler in 1909, consists of a simple description of a three﹣pointed star that represents its rule of the land, the sea and the air. The company was founded by Gottlieb Daimler and Wilhelm Maybach. Mercedes is the name of Maybach's elder daughter, while Benz came as a result of a combination with Benz Cie and DMG in 1926.

    Crossing your legs is an extremely common habit; most people don't even notice that they're doing it when they sit down. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.

    A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason for this is that the blood in your legs has to work against gravity to be pumped back to your heart and that crossing one leg over the other increases resistance(阻力), making it even harder for the blood to circulate. This causes your body to increase your blood pressure to push the blood back to the heart. You won't feel any immediate effects, but repeated, drawn­out increases in blood pressure can cause long­term health problems. So, planning to sit for a long period of time? Don't keep your legs crossed.

    Crossing your legs at the knee can also cause pressure on the major nerve in your leg that passes just below your knee and along the outside of your leg, explains Richard Graves, a medical expert. This pressure can cause numbness and temporary paralysis (麻痹) of some of the muscles in your foot and leg, preventing you from being able to raise your ankle—what we know as that "pins and needles" sensation. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.

    So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.

Thanksgiving Day is special holiday in the United States and Canada. Families and friends gather to eat and give thanks for their blessing.

Thanksgiving Day is really a harvest festival. This is why it is celebrated in late fall, after the crops are in. But one of the first thanksgivings in America had nothing to do with a good harvest. On December 4, 1619, the Pilgrims (清教徒) from England landed near what is now Charles City, Virginia. They knelt down and thanked God for their safe journey across the Atlantic.

The first New England Thanksgiving did celebrate a rich harvest. The Pilgrims landed at what is now Plymouth, Massachusetts, in 1620. They had a difficult time and the first winter was cruel. Many of the Pilgrims died. But the next year, they had a good harvest. So Governor Bradford declared a three­day feast. The Pilgrims invited Indian friends to join them for their special feast. Everyone brought food.

In time, other colonies (殖民地) began to celebrate a day of thanksgiving. But it took years before there was a national Thanksgiving Day. During the Civil War, Sarah Josepha Hale persuaded Abraham Lincoln to do something about it. He proclaimed (宣布) the last Thursday of November 1863 as a day of thanksgiving. Today, Americans celebrate this happy harvest festival on the fourth Thursday in November. Canadians celebrate Thanksgiving Day in much the same way as their American neighbours. But the Canadian Thanksgiving Day falls on the second Monday in October.

增加：在缺词处加一个漏字符号(∧)， 并在其下面写出该加的词。

删除：把多余的词用斜线(\)划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1. 每处错误及其修改均仅限一词；2. 只允许修改10处，多者（从第11处起）不计分。

Nowadays, an increasing number of people have trouble falling asleep and suffer from lack of sleep, lead to serious health problems.

Definitely, a good sleep can restore our physical strength what is needed to get refreshed for the day ahead. On the contrary, lack of sleep can result in poor outcomes, absent of mind, memory loss and low spirits including. Consequently, effective approaches should put forward to address the issues.

Firstly, we should lay a efficient learning plan and strike a balance between your study and rest. Secondly, remove our phones or other screens before going to bed. Lastly, creating a sleep-friendly environment can be of extremely helpful. Something as simply as a comfortable pillow can do wonders. 

Beijing is the capital city of China. It {#blank#}1{#/blank#} (cover) an area of around 17, 000 square kilometers, in which there are different kinds of bird habitats (栖息地), {#blank#}2{#/blank#} (include) grassland, scrubland (灌木丛林地), wetland, and also agricultural land. Researchers call these areas "service stations," where migrating (迁徙) birds stop {#blank#}3{#/blank#} (rest) and feed. But the birds ‘"service stations" re {#blank#}4{#/blank#} (rapid) closing in Beijing, as the city considers scrubland, grassland and old agricultural land to be "dirty" and "ugly". 

The loss of grassland and scrubland is already having a major influence {#blank#}5{#/blank#} Beijing's bird life. In the north of Beijing, the land around Miyun used to be visited by thousands of cranes (鹤). Now, much of that land is covered with man-made forest and {#blank#}6{#/blank#} number of cranes there has greatly fallen. 

"Cranes are rare and valuable animals in China. At Miyun, a festival {#blank#}7{#/blank#} (hold) to celebrate the migration of cranes every year," one researcher, Townshend, says. "Because it is Beijing, we can attract many people—both local people {#blank#}8{#/blank#} visitors."

"More cooperation (合作) between {#blank#}9{#/blank#} (country) is needed," Townshend adds. "Migratory birds are a shared natural heritage (遗产), and with this comes a common {#blank#}10{#/blank#} (responsible) to protect them and the places they need," he says.