In recent years,sandstorms {#blank#}1{#/blank#}(occur) in China frequently,especially in northwestern areas, {#blank#}2{#/blank#}severe influence has caused wide concern in China.

There're several reasons for this.First of all,people are cutting down trees without planting more, {#blank#}3{#/blank#}(make) some land become deserts.Another reason is {#blank#}4{#/blank#}it rains less due to the environment pollution.

    To {#blank#}5{#/blank#}(efficient) prevent sandstorms,first,we should plant more trees and grass which can keep the soil {#blank#}6{#/blank#} being washed away.Second,more green fences should {#blank#}7{#/blank#}(build) along the desert, {#blank#}8{#/blank#}it helps to control the process of the desertification.

    Let's take action to do what we can {#blank#}9{#/blank#}(prevent) sandstorms from today.Soon the golden days we have been looking forward to {#blank#}10{#/blank#}(come).

    Yesterday was my 18th birthday. As Father and Mother thought it{#blank#}1{#/blank#} (be) a big occasion for me, they suggested I {#blank#}2{#/blank#} (held) a birthday party at home to celebrate it. For several days they had been busy {#blank#}3{#/blank#} (prepare) for this. By 4 o'clock I was pleased to see all my friends had come {#blank#}4{#/blank#} a lot of beautiful presents.

    We spent a wonderful night together, {#blank#}5{#/blank#} (happy) talking and eating. One of {#blank#}6{#/blank#} most exciting moment was when Mother put a big birthday cake on the table and all my friends began to sing Happy Birthday. Seeing the 18 candles burning, I couldn't keep back my {#blank#}7{#/blank#} (tear). Without Mother and Father's love, I would not lead such a happy life now. Mother asked me to make a wish before I blew out all the candles. After that, everyone enjoyed the sweet birthday cake and shared my happiness.

    I am eighteen years old now, {#blank#}8{#/blank#} means I've become an adult and have {#blank#}9{#/blank#} (many) responsibilities. I'll do my best to return my parents' love and live up to {#blank#}10{#/blank#} (they) expectations.

    China has once again showed its ability to change the world with its “new four great {#blank#}1{#/blank#}(invent)”—high-speed rail, electronic payment, shared bicycle, and online shopping

    China's new-generation high-speed train, the Fuxing, is now one of the {#blank#}2{#/blank#}(fast) trains in the world, which can travel at a speed of 350 km/h. Besides high-speed rail, China {#blank#}3{#/blank#}(improve) people's lives in many other innovative (创新的) ways over the last decade.

    Bike sharing, for example, is not new itself. But China has made {#blank#}4{#/blank#}much more convenient and popular both in China {#blank#}5{#/blank#}overseas. Leading Chinese bike-sharing companies Mobike and Ofo are now operating in foreign countries such as Singapore and Britain.

    And back in China, when riding a shared bike, you can stop {#blank#}6{#/blank#} (buy) and eat whatever you want {#blank#}7{#/blank#}(simple) with a tap of your phone. You could easily pay with your smartphone by {#blank#}8{#/blank#}(scan) the seller's QR code. Cashless payment has grown into a{#blank#}9{#/blank#}(choose)for Chinese  people—even a pancake seller is using Alipay.

    Besides, the four innovative ways of life are most appealing {#blank#}10{#/blank#}youths from 20 countries participating in the Belt and Road innovation, and they wish their countries would emulate(仿效) China in terms of technological achievement

    For you, the "Clear and Bright" day that falls in every April might be no more than just another holiday — the fact that it comes with three days off school matters to most students {#blank#}1{#/blank#} more than the fact that it is part of the 24 solar terms.

But the UNESCO has recognized the importance of the 24 solar terms. This ancient system that Chinese people have used to keep track of the time of year {#blank#}2{#/blank#} (add) to the UNESCO list of Intangible Cultural Heritage of Humanity on Nov 30.

For starters, you may have heard your mom say: "The sanfu days are almost over. The heat won't be here for long." The sanfu days are a period of time that {#blank#}3{#/blank#} (fall) in summer, somewhere {#blank#}4{#/blank#} Minor Heat (in July) and Autumn Equinox (in September). The coldest days, or the sanjiu days, are similar. They cover the 27 days {#blank#}5{#/blank#} (follow) Winter Solstice.

    In some places, solar terms guide people's lives through special foods, {#blank#}6{#/blank#} (culture) events and healthy living tips. For example, people from northern China are in the habit of eating dumplings on the day of Winter Solstice. And on Start of Autumn, some people treat {#blank#}7{#/blank#} to a big feast, especially of meat, something they call "putting on autumn weight", or tieqiubiao.

    But no matter {#blank#}8{#/blank#} differently people celebrate the 24 solar terms, they have been here for a long time and could last forever.

    According to Chinese writer and academic Yu Shicun, unlike many other examples of intangible cultural heritage – Peking Opera and Chinese Zhusuan, for example – the solar terms are neither regional (地域的) nor a type of art or skill. Instead, the system is a philosophy of time, {#blank#}9{#/blank#} applies to everything. And this means they are {#blank#}10{#/blank#} (likely) to die out.

    When an important holiday comes, I usually think of what gifts to buy or prepare for my family members. It is the act itself rather than the thing you buy that {#blank#}1{#/blank#}(matter). Either a small present, a text message or a phone call can mean a lot to the receivers. {#blank#}2{#/blank#}, I had never got anything from my son, who is a university student. Parents never forget to celebrate their children's birthday, but their children seem to be very {#blank#}3{#/blank#} (forget). They seldom do something in return.

    Life is unpredictable, and you never know what will happen tomorrow. When my son came back during the summer vacation, my wife and I, as usual, {#blank#}4{#/blank#} (meet) him at the station. On arriving home, much {#blank#}5{#/blank#} my surprise, my son took out a wrist watch and gave it to me, {#blank#}6{#/blank#} (say) it was a birthday gift for me. It is a very fashionable watch, {#blank#}7{#/blank#} shows not only hours, minutes and seconds but days as well. You can imagine how surprised and excited I was at that moment.

    Some people say children get too much care and love from their parents and just take them for granted. It is natural for people to have such concerns and {#blank#}8{#/blank#}(worry), but things may not turn out as badly as{#blank#}9{#/blank#} (expect). We need to look more at the positive side of life, as a famous writer once said, "Life is {#blank#}10{#/blank#}best classroom one can never get."