In many people's opinion, man's first real invention,{#blank#}1{#/blank#}is also one of the most important inventions in history, is the wheel. All transportation and every machine in the world depend{#blank#}2{#/blank#}it. The wheel is the{#blank#}3{#/blank#}(simple) yet perhaps the most remarkable of all{#blank#}4{#/blank#}(invention) because there are no wheels in nature.{#blank#}5{#/blank#}, then, did man come to invent the wheel? Perhaps some early hunters found that the body of {#blank#}6{#/blank#}heavy animal could be rolled through the forest on logs (圆木) more{#blank#}7{#/blank#}(easy) than they could carry it. However, the logs{#blank#}8{#/blank#}them) weigh a lot.

    It must have taken a great prehistoric thinker to imagine two thin slices of log connected, at their centers by a string stick. This would roll along just {#blank#}9{#/blank#}the logs did, yet be much lighter and easier{#blank#}10{#/blank#}(handle). Thus the wheel and axle came into being and with them the first carts.

    Longjing tea, {#blank#}1{#/blank#} has topped the list of the ten most famous teas in China with Nits color, taste and shape, {#blank#}2{#/blank#} (name) after its production region-Longjing Village of West Lake. The good environment and water resources have contributed much to the {#blank#}3{#/blank#}(grow) of the tea, confirming the saying that "Longjing tea is the {#blank#}4{#/blank#} (good) among all of the teas in the world".

    Thanks {#blank#}5{#/blank#} Emperor Qianlong of the Qing Dynasty, the tea has earned a high reputation. The story went that Emperor Qianlong visited the mountain during his Hangzhou travels, and he saw some ladies picking the tea at {#blank#}6{#/blank#} foot of the mountain. He was so interested in their movements that he decided to have a go himself While {#blank#}7{#/blank#}(pick) the tea, he received the news of his mother's illness, so he carelessly put the leaves in his right sleeve and{#blank#}8{#/blank#}(leave) Hangzhou for Beijing. He visited his mother {#blank#}9{#/blank#} (immediate) upon his arrival in Beijing, and his mother smelt the fragrance of the tea leaves from his sleeves and wanted to have a taste. After drinking a cup of tea, she found herself completely {#blank#}10{#/blank#} (refresh), and she even praised it as a cure for all ills. From then on, it was listed as the tribute tea.

    Our school planned a trip for us to study English in another country this holiday. I was excited for it was my first time{#blank#}1{#/blank#} (travel) abroad. I{#blank#}2{#/blank#} (pack) everything I thought I would need into my backpack. I knew I was going to have so much fun. After boarding the bus to the airport, I said goodbye to my parents. I looked out the window of the bus and dreamed about{#blank#}3{#/blank#} we would do while on our trip.

    "Avengers: Endgame" {#blank#}1{#/blank#} (start) national release (放映) from April 24, two days {#blank#}2{#/blank#} (early) than its screening in North America.

    The film is available in IMAX 3D version at China's 600 or so IMAX theaters to highlight its amazing scenes {#blank#}3{#/blank#} (feature) the Marvel Comics characters. {#blank#}4{#/blank#} (shoot) with an Alexa IMAX camera, it presents better brightness, color and contrast. The film gathers {#blank#}5{#/blank#} full cast of Marvel heroes over the past 10 years at the end of their journey. Many movie fans emotionally say the film is a farewell to their youth. The superheroes with their varied personalities and abilities have left them lots of wonderful {#blank#}6{#/blank#} (memory).

    The 21 previous films have earned about $19 billion {#blank#}7{#/blank#} (global). Though "Endgame" marks the end of the current story, Marvel Studios is far {#blank#}8{#/blank#} through. So far it {#blank#}9{#/blank#} (announce) several new projects: in addition to follow-ups for "Spider-Man", "Black Panther" and "Doctor Strange", there will also be "Guardians of the Galaxy Vol. 3", "The Eternals" and "Black Widow". "The fun thing about an ending is {#blank#}10{#/blank#} you eventually get to do a new beginning", said Marvel Studios President Kevin Feige.

Have you ever tasted or perhaps heard of sugar painting? As fewer people choose to make sugar paintings, the traditional Chinese folk craft might have become a {#blank#}1{#/blank#} (distance) memory in some ways. However, a 38-year-old craftsman, Li Jiangzhong, is devoted to {#blank#}2{#/blank#} (keep) the art of sugar painting alive.

Li worked as a miner for more than ten years. After the mine closed down, Li turned {#blank#}3{#/blank#} housing decoration until he {#blank#}4{#/blank#} (force) to give that up due to a finger injury. Earlier this year, he discovered sugar painting, something he really had {#blank#}5{#/blank#} interest in.

Since there was no sugar painting craftsman in his village, he studied by {#blank#}6{#/blank#} (he) through large quantities of videos and information on the Internet. Li loved painting when he was young, and he found it easy to learn the skill in sugar painting. He soon mastered the skill and could make {#blank#}7{#/blank#} (vary) of sugar paintings. A sugar painting is made with {#blank#}8{#/blank#} (melt) brown or white sugar. Craftsman {#blank#}9{#/blank#}(basic) paint animals and flowers on a stone board with the syrup (糖浆). When the sugar cools down, {#blank#}10{#/blank#}appears is a piece of sugar art.