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No one knows exactly when jazz was invented, or by whom. But it is said that it began in the early 1900s. Jazz was a new kind of music, for America and the world, and New Orleans was its birthplace. Here are some information about jazz.

Who were the jazz pioneers? Most were blacks. This music was not written down, and at first only blacks played it. It was hard for white musicians to learn the new style. But soon they, too, were playing jazz. The popularity of this music spread. From New Orleans, it traveled up the Mississippi to Chicago, then to Kansas City and New York. By the 1920s, there were many jazz musicians, both black and white. Many of them were famous. One man was better than the rest. His name was Louis Armstrong.

Louis Armstrong was a born musician. He was not only talented but also hard-working. He also had a good sense of humor and a big, good-natured smile. These personal qualities were valuable in his rise to fame. After he became famous, he traveled around the world. It seemed that everyone wanted to hear Louis play. But life was not always easy, especially at the beginning.

Louis Armstrong was bornin1900 in New Orleans. His father never went to school and his mother could hardly read. When Louis was still a kid, his parents separated, and Louis lived with his mother. How hard their life was can readily be imagined. And yet Louis smiled through everything. He later wrote, "My whole life has been happiness. Life was there for me and I accepted it. Whatever happened has been beautiful to me. I love everybody."

Good health is the most valuable thing a person can have, but one cannot take good health for granted. It is important to remember that the body needs proper care in order to be healthy. There are three things that a person can do to help stay in good shape: eat right food, get enough sleep, and exercise regularly.

Proper nutrition (营养) is important for good health. Your body cannot work well unless it receives the proper kind of "fuel"(燃料). Don't eat too much food with lots of sugar and fat. Eat plenty of foods high in protein, like meat, fish, eggs and nuts. Vegetables and fruits are very important because they provide necessary vitamins and minerals. However, don't overeat. It is not helpful to be overweight.

Getting the proper amount of sleep is also important. If you don't get enough sleep, you feel tired and easily get angry. You have no energy. Over a long period of time a little amount of sleep may even result in a change of personality.Be sure to allow yourself from seven to nine hours of sleep each night. If you do, your body will feel strong and refreshed, and your mind will be sharp.

Finally, get plenty of exercise. Exercise firms the body, strengthens the muscles, and prevents you from gaining weight. It also improves your heart and lungs. If you follow a regular exercise program, you will probably increase your life-span (寿命). Any kind of exercise is good. Most sports are excellent for keeping the body in good shapes: basketball, swimming, bicycling, running and so on are good examples. Sports are not only good for your body, but they are enjoyable and interesting, too.

If everybody were to eat the right foods, get plenty of sleep and exercise regularly, the world would be a happier and healthier place. We would all live to be much older and wiser.

Growing up, Steph Clemence didn't live in any one place for long because her mother was always on the move. By the time she was a senior in high school, Steph had lived in 25 places. Still, she had good grades and thought she would be going to college. But when her father died in a car accident, leaving her mother to support three daughters, paying for college was out of the question.

Steph found a job and tried to work out what to do with a life that had deviated(偏离) from the plan she'd carefully laid out.

The answer came one afternoon when she was cleaning her drawer (抽屉) and found a handout titled "Mrs. Clark's Book List." It was from the English teacher she'd had in her junior year at McKenzie High School in Vida, Oregon. One afternoon, Mrs. Clark walked into the classroom carrying a pile (摞) of handouts. She asked each student to take one. It could be a road map, she said. "Some of you mightn't go on to higher education," Mrs. Clark said, "but you can continue to learn." She'd spent months creating a list of 153 books from the United States and abroad.

Steph studied the list. And so it began. "I was hopeful and decided to improve myself," Steph says. "I would read every book in the order they appeared."

Over the years, the reading list was a constant (不变的事物) in her life, traveling with her even on vacations. When the original (原先的) list wore out, she typed up a new copy. And then another.

Now Steph is 70, and she never did get to college. But she has only four books left to read from the list. She expects to finish them sometime in 2023. "Each of the books has added something to who I am and how I see the world," she says. "They've opened so many doors for me about the environment, history, etc. I'm no expert, but I now have the background to see why things happened and what they might mean."

Wonderful trip around the Mediterranean

Days 1-2 Barcelona Spain

Discover the interesting buildings, Catalan culture and Gothic Quarter in Gaudi's city of Barcelona.

Day 3 BoardRegal Princess

Day 4 Relaxing at sea

Day 5 Gibraltar

You've got a full day to get to know this British territory (领土), home to many cultures. Choose to ride the cable car (缆车) for great views of the Rock of Gibraltar or discover the beautiful lighthouse.

Day 6 Relaxing at sea

Day 7 Marseille, France

Enjoy a full day discovering all that Provence has to offer — flower fields, fishing boats or Roman ruins (遗迹). City or countryside, you decide.

Day 8 Genoa, Italy

Get to know this busy town by walking through the wonderful streets and piazzas (public squares, especially in an Italian town).

Day 9 Florence / Pisa

Choose to visit wonderful wineries (酒庄) in Tuscany or the famous Leaning Tower of Pisa on your last day in Italy.

Day 10 Disembark (下船) Regal Princess

Go to the airport for your flight home.

Your holiday includes

• Direct flights

• 2 nights 4 star Barcelona hotel incl breakfast

• 7 nights aboard Regal Princess

• Private guide

10 day holiday from

Single room £1,199

Mini double room £1,949

That was a big competition. We all knew it, The entire school was filled with excitement and anticipation. It was the annual choir (合唱) competition, and we were determined to participate despite

knowing that many of us were not the best singers. As the class monitor, I felt responsible for calling in my classmates and convincing them to join the chorus. I knew it wouldn't be easy ; some of them were hesitant and gave me skeptical looks, while others ran away. But I wasn't ready to give up. 

With a persuasive tone and genuine enthusiasm, I spoke to my classmates, explaining why it was important for us to participate as a team, [ told them that it wasn't about being the best. but about coming together and enjoying the experience of singing as a group. Slowly, I started to see some students were interested and a few of them promised to give it a try. 

Our rehearsals(排练)were intense . filled with laughter, and sometimes frustration. We tried our best to perfect our harmonies and cooperation, but deep down, we still held onto the belief that we would probably end up at the bottom of all the choirs. In that moment of despair, a boy from our choir whispered, " Are we just asking for humiliation(羞耻)?" The words made our doubts and fears stronger. But right before it was our tur to step onto the stage, Mrs. Wood, our music teacher, brought us together in a tight group. She looked into our eyes and said firmly, " We are not here to impress; we are here to express. " Her words made all the difference.

With an understanding of the true meaning of our performance, we stepped onto the stage. As the music started, we sang from our hearts. We didn't worry about being perfect or winning the competition: we focused on expressing our love for music and the joy of singing together. 

注意：

1. 续写词数应为 150 左右;

2. 请按如下格式在答题卡的相应位置作答。

When the performance ended, our headmaster stepped onto the stage. 

'The competition results were announced later, and we were awarded a special medal for our team spirit. 

1. 报名时间;

2. 演员自身条件。

注意：

1. 写作词数应为 80个左右;

2. 请按如下格式在答题卡的相应位置作答。

Dear Elly, 

Yours, 

Li Hua

On February 10, 2024 ambitious young scientists flooded Brown University's classrooms and laboratories, ready to put their knowledge to the test at the 7th Annual Brown Science 0lympiadtournament, which provided a (true) enriching and enjoyable experience for all involved. 

The STEM competition welcomes nearly 1, 000 high schoolers from across New England.  (feature)a lineup of 23 diverse challenges, the single-day academic tournament integrates written assessments with hands-on design and build tasks. Each challenge  (score )individually, with points awarded based on performance, accuracy and completion of tasks. Teams win by accumulating(累积) the highest total score across all 23 challenges in the tournament. 

Contestants get (them) involved in various scientific disciplines, from fundamental subjects like biology, chemistry and physics to (specialize) areas such as astronomy and robotics. Throughout the event, students engage a series of activities in a day filled with curiosity, creativity, exploring the (wonder)of science and pushing the boundaries of their intellectual capabilities. But the Brown toumament isn't just about becoming a strong competitor. It also offers a platform for young scientists (wander) Brown's campus. "With the tournament, you can get an insight in to college life and great understanding of the whole college experience, " Golditch, a contestant, said. " Participating in the Science Olympiad has been the most valuable experience allows us to explore fun science coneepts, " added Golditch.

What we believe we can become is often shaped by the world we see around us. This is especially true for young children who1 becoming everything from astronauts to future world leaders. And it's one of the reasons why representation matters so much, For Asian American2 and Ph. D. candidate Elaine Shen, she had never3 herself to be an inspiration for future generations. That is until she received a(n)4 email from a third-grader in Minnesota who wanted to interview her for a class5 "I'm working on my big year-end project, " the heartwarming message6 . "I love biology. Idid some online research and found your website, I would like to ask if I could7 you. ' Needless to say, Shen was immediately8 by the email-so much so that she shared a screenshot of the child's inspiring message on Twitter. The post9 became popular, gaining more than 270, 000 likes and 1, 50010 since she first shared it. Many commenters were just as moved by the email as Shen was. " It's pretty amazing to witness that children are11 to achieve as much as you have done, " said one Twitter user, Other readers were12 of their ow experiences with young children growing up. "Representation matters, and it is13 the third-grader found his role model. '

Now that the story has touched thousands, Shen has a renewed motivation to 14 her Ph, D. and continue creating an environment of 15 for students within her field. 

Tired of traditional chlorinated(含氯的)pools? Consider a salt water pool, a popular trend in recent years. 

A salt water pool is a type of swimming pool that uses a salt chlorine generator to produce its own supply of chlorine. This means instead of manually adding harsh(刺激性的) chemicals to a pool, the generator changes salt into chlorine and releases it into the water as needed.  They still contain levels of chlorine and other minerals, but the amount is significantly low. 

What sets salt water pools apart from their traditional counterparts? With traditional chlorine pools, owners must monitor and adjust chemical levels regularly to maintain proper balance-too much or too little can cause major problems for swimmers . With a salt water system set up in the pool, one doesn't have to spend as much time testing and adjusting chemical levels, The generator automatically produces enough chlorine based on the pool's size.  

Have you ever been in a traditional chlorine pool and come out with red, irritated (刺痒的) skin or burning eyes?  Salt water pools, however, use a saltwater chlorination system that produces natural chlorine to treat the water, which is kinder to the skin and eyes. Plus, minerals like magnesium and potassium in salt water pools can benefit the skin. 

Salt water pools require fewer chemical additions and result in lower chlorine by product emissions. Since there's no need for chemical storage, there's less risk of accidents or spills. 

A. You'll leave a salt water pool feeling refreshed. 

B. Switching to salt water pools is also eco-friendly. 

C. This can be quite exhausting and time-consuming. 

D. It's no secret that chlorine can be harsh on the body. 

E. However, salt water pools are not completely chemical-free. 

F. So one doesn't have to worry about the strong smell of chlorine. 

G. It's like having an assistant manage the affairs while you just enjoy yourself!

It's not easy to swim 109 miles when you're starving to death. It's not easy either to try to survive when you're losing body weight at a rate of 2. 2 Ib. a day. And it might be the hardest of all if you're anursing mom and your calorie intake has dropped so low that you can no longer produce the milk you need to care for your young. 

As a new paper in Nature Communications reveals, all of those challenges and more are facing the world's polar bears, thanks to disappearing sea ice in our warming world, denying the animals a plat form that they need to hunt for seals. If the trend isn't reversed(扭转) soon, the estimated 26, 000 polar bears in the wild could start to lose their hold on survival before the middle of this century. 

The researchers followed 20 different polar bears in Manitoba, Canada, from 2019 to 2022, fitting them with GPS trackers and video collars and periodically tranquilizing(麻醉) them to analyze their blood, body mass. and daily energy consumption. "The polar bears in Hudson Bay are probably at the edge of the range at which they can survive right now, " says Anthony Pagano, a research biologist with the U. S. Geological Survey and the lead author of the paper. " Most of the modeling work suggests that around 2050, they are going to be on land and away from their primary habitat on the ice.

According to the study, the data gathered was troubling. Weight loss varied among bears, with the daily loss of 2. 2 Ib. representing an average; some of the subjects dropped up to 3. 75 Ib. every 24 hours. 

The bears are efficient hunters when they've got the purchase of ice beneath them, but they are clumsy when they are going after seals and trying to swim at the same time. That leaves them searching on land for foods they would not ordinarily eat and getting little payoff for their efforts. Polar bears are feeding on ducks, geese, and eggs. Other foods on the desperate bears menus include berries and other vegetation. None of that food is as calorie-rich as seals

For the past decade, one of the most linguistically(语言学地) diverse places in the world, square mile after square mile, has been my home: Queens, New York. The soundtrack outside my door is extraordinary: On any given block, passing voices speak varieties of Polish, Ukrainian, Egyptian Arabic, Mexican Spanish, Puerto Rican Spanish, Dominican Spanish. and all the forms of New York City English they give rise to. 

As a person who studies languages, I can usually distinguish them from one another. but under stand only a part of what people are saying. 

Users of Seke, a language from five villages in Nepal with 700 speakers, live a subway ride away In certain stores, Albanians, Bosnians, Serbs, and Montenegrins all reunite, using the languages of the former Yugoslavia as if the country still existed. No group has a majority, or even 15 percent of the neighborhood, and most are at just 5 or 10 percent. English acts, for the most part, as a vital linguafranca(通用语). This last point is crucial, because a city can be a haven(避难所) for diversity but also an end point. 

My neighborhood has its signature sound, but there are several dozen others that are just as diverse each in a different way. These are the places where the Endangered Language Alliance, the nonprofit I co-direct, has recorded New Yorkers speaking more than 100 languages that the survey and other data sets say don't officially exist, and more than 700 in total. 

That linguistic portrait makes clear that early-2lst-century New York City is a last haven for endangered languages-ones that are being hounded out of existence elsewhere. And this deep linguistic diversity is among the least explored but possibly most important factors in New York's history and makeup. New York's soul can be found in the existence of these many, many languages, explaining New York's particular capacity for tolerance and its ability to " make room" for others. 

Making it to 100 years old is a big achievement on its own, but being active at that age is absolutely worthy of praise and admiration. Jayne Burns, who just turned 101 years old, still has a part-time job at a craft store in Ohio, drives herself to work, and simply doesn't see herself retiring anytime soon. Not only does she seem to love keeping busy, but she credits it as one of her secrets to living a long life. Bums first caught the internet's attention on TikTok. There, her coworker Maggie HusVar told her followers about her then 98-year-old friend. Maggie then asked Burns to share a piece of advice with her

new fans, to whom Burns said, " Keep moving. " The senior woman recently celebrated her 10lst birthday, and she certainly hasn't changed her mind about slowing down. Burs took the job in 1997 after her husband died, and has expressed that she enjoys what she does, so she wants to keep doing it. " ['ll work for as long as I can or as long as they'll have me, " she said. 

In celebration of her milestone birthday, Bums recently shared some more tips for a long life. "I was always active all my life doing things. So I think that has helped more than anything. " As a cancer survivor, she said she used to watch her sugar intake, but she doesn't anymore, as she loves sweets. Despite her age, she still follows a beauty routine. "I use a moisturizer (保湿霜) and makeup. I figured I did it all my life, so I'm not going to stop now, " she says. 

Overall, her top secret for a long life is to make friends and find happiness in the company of others. "It's important to find people who are friendly and kind, " she says. "I enjoy talking to every body I work with, and meeting the customers who are very nice, even if some of them are surprised to see meat the cutting table. "

From crafty spies to distinctive detectives, discover some inquiring minds. 

Montgomery Bonbon : Murder at the Museum by Alasdair Beckett-King

Illustrated by Claire Powell 

(Walker Books)

This is the first book in a funny new detective series. Montgomery Bonbon is a smart gentle man detective with a mystery to solve. Behind the hat and moustache is 10-year-old Bonnie Montgomery. Will anyone notice?

Alice Eclair Spy Etraordinaire: A Spoonful of Spying by Sarah Todd Taylor

( Nosy Crow)

Alice Eclair is a baker by day and a spy by night, In her latest adventure, she's in Paris for the World Fair, where all eyes are on the aero plane exhibition. With enemy spies all around, Alice will need every trick in her recipe book to stop France's greatest invention from falling into the wrong hands. 

Ollie Spark and the Exploding Popcorn Mystery by Gillian Cross and Alan Snow ( David Fickling Books)

Ollie Spark loves mending machines and solving mysteries. In his second adventure, he travels to a food festival on a remote island. There, an encounter with a grand duchess leads to an undercover spying mission-his most exciting and dangerous yet. 

Rockstar Detectives: Murder at the Movies by Adam Hills

Illustrated by Luna Valentine

(Puffin Books)

Best friends Charley and George are in Sydney, Australia. George is a social media whizz(专家)and ambitious comedian and Charley is a 13-year-old singer who is in Australia to make her first film. However, some dangerous accidents on set lead them into an investigation.