Louis Armstrong, the most influential jazz musicians, is considered great not only because of his {#blank#}1{#/blank#} (achieve) but also because of his personalities.

    {#blank#}2{#/blank#} (bear) in a poor family in New Orleans in 1901, instead of {#blank#}3{#/blank#} (commit) crimes to get money like some boys in his situation, Louis would sing on the streets in order to earn a few cents from {#blank#}4{#/blank#} (passer-by).However, at the age of 12, Louis was arrested because of firing a gun into the air at a New Year's Eve party. In a school of problem boys, he was taught to play drums and the trumpet, {#blank#}5{#/blank#} enabled him to find work related with music after he left the school.A well-known musician Joe “King” Oliver noticed Louis and began to teach him about jazz.When Oliver left New Orleans in 1917，Louis took {#blank#}6{#/blank#} his job in one of the best bands in town.

    After becoming famous, Louis would introduce his particular style of jazz to enthusiastic audiences while {#blank#}7{#/blank#} (travel) around the United States as well as Europe.Apart from being a famous jazz musician, he was also an unofficial goodwill ambassador who spoke {#blank#}8{#/blank#} (public) about the rights of black people in America. Despite the fact {#blank#}9{#/blank#} he became rich and famous, Louis Armstrong continued to live a simple live in a working-class neighbourhood.He continued playing and recording until July 6th, 1971, when he died in his sleep at his home in New York.He is still remembered as the most {#blank#}10{#/blank#} (distinguish) musician in the early history of jazz.

The history of air conditioners (空调) started in the early days with the need to preserve food. The food{#blank#}1{#/blank#}is kept at room temperature spoils easily due to the growth of bacteria. At temperature below 4℃, the growth of bacteria reduces{#blank#}2{#/blank#}(rapid). As a result of the development in food refrigeration, other following applications include air conditioning and manufacturing processes.

    The{#blank#}3{#/blank#}(discover) of the principles of the absorption type of refrigeration in 1824 showed that liquefied ammonia (液氨) could cool air. At first, the commercially available use of air conditioning applications was based on the need to cool air for industrial processes rather than {#blank#}4{#/blank#}(person) comfort. The first electrical air conditioning{#blank#}5{#/blank#}(invent) by Willis Haviland Carrier in 1902. He was also known{#blank#}6{#/blank#}the Father of Modern Air Conditioning.{#blank#}7{#/blank#} (he) invention was designed to improve the manufacturing process of a printing factory. By{#blank#}8{#/blank#}(control) the temperature, the process was made more efficient.

    The Carrier Air Conditioning Company of America was set up by him {#blank#}9{#/blank#}(meet) the demand of better productivity in the workplace. Today, Carrier Corporation is{#blank#}10{#/blank#}biggest air conditioner manufacturer and marketing corporation in the world in central air conditioning.

    As you know, science plays {#blank#}1{#/blank#} very important role in our education. Do you want to keep up with the latest research and discoveries in science? There are many good websites {#blank#}2{#/blank#} you can check out the latest in the science world.

    One great site is Science News for Kids. This site reports science news {#blank#}3{#/blank#} (cover) a wide range of subjects. The articles are intended {#blank#}4{#/blank#}younger readers， {#blank#}5{#/blank#} adults will find this site suitable for them as well. Another wonderful site, one that I check out every day,{#blank#}6{#/blank#}(call) Science Daily. The site is {#blank#}7{#/blank#} (constant) updated with news, often about exciting {#blank#}8{#/blank#} (finding) that change how we view the world.

    These sites post the latest stories and also keep all the past articles they{#blank#}9{#/blank#} (post) earlier. That way you can find about {#blank#}10{#/blank#}is related to the science fields your are interested in.

    Astronauts are people who go out into space. Being an astronaut is an exciting job. While in space, astronauts can look down and see {#blank#}1{#/blank#}（cloud）, land, and water. They can even see the moon up close. Astronauts get the chance {#blank#}2{#/blank#}(see) more stars than you or I have ever seen. Being an astronaut may be exciting, {#blank#}3{#/blank#} it is not an easy job. A person who {#blank#}4{#/blank#}(want) to be an astronaut has to study for years. There are many things an astronaut must learn to do before going into space.

    A British insurance company recently asked 1,000 people {#blank#}1{#/blank#} (vote) on the most romantic letter. A letter by musician Johnny Cash to his wife June Carter Cash {#blank#}2{#/blank#} (win) first place.

    Some say it is not the most romantic letter ever {#blank#}3{#/blank#} (write). But Johnny and June's long life together was {#blank#}4{#/blank#} (evident) of their strong relationship. They married in 1968 and stayed {#blank#}5{#/blank#} (marry) until June Carter Cash died in 2003. Johnny Cash died four months later.

    Here is his love letter to June：

    "We get old and get used to each other. We think alike. We read each other's minds. We know {#blank#}6{#/blank#} the other wants without asking. Sometimes we annoy each other a little bit. Maybe sometimes take each other for granted. {#blank#}7{#/blank#} once in a while, like today, I meditate on it and realize how {#blank#}8{#/blank#} (luck) I am to share my life with the {#blank#}9{#/blank#}(great) woman I ever met."— Johnny Cash.

    The letter {#blank#}10{#/blank#} is simple and heartfelt, gives the best advice when writing a letter to the one you love - write from the heart and keep it real.

The Longji Rice Terraces (龙脊梯田) were built by the local Zhuang and Yao people, to whom Guangxi is home. Starting in the Yuan Dynasty, work on the terraces took hundreds of years. The terraces are {#blank#}1{#/blank#} (clever) designed, with hundreds of waterways that connect with each other. During the rainy season, it is along these waterways that rainwater {#blank#}2{#/blank#} (move) down the mountains and into the terraces. These terraces also provide a perfect environment for birds and fish, some of which feed on insects {#blank#}3{#/blank#} can harm the rice crops. Today the Longji Rice Terraces attract thousands of visitors who come to admire this great wonder created by people and nature working together.