Findings suggest that playing with smartphones before sleep {#blank#}1{#/blank#}(be )positively associated  with insomnia(失眠症). Recent {#blank#}2{#/blank#}(study) show that nearly 24 percent of Chinese people suffer from insomnia and {#blank#}3{#/blank#}number of young people affected is rising. And more than 60percent of people born after 1990,the group that are most likely{#blank#}4{#/blank#}(use) their smartphones just before sleep, do not sleep well.

    Bedtime mobile phone use is an unhealthy sleep habit because{#blank#}5{#/blank#}can delay falling asleep and reduce sleep quality. According to the research, nearly three-quarters of the young people fall asleep each night with their phones {#blank#}6{#/blank#}reach. About 60 percent of them use their smartphones for up to 80 minutes before sleep. And 54.7 percent of the people aged between 18 and 25 go to bed{#blank#}7{#/blank#}(late) than 12 am.

    Good sleep is helpful in protecting the brain's neurons(神经元)and lack of sleep for long periods can{#blank#}8{#/blank#}(danger) health. Therefore, all people, including the young,{#blank#}9{#/blank#} (advise) to avoid using electronic devices one hour before sleep and go to bed at fixed times. But it is{#blank#}10{#/blank#}(benefit) to sleep if people listen to soft music and read books before going to bed.

    In my family, there {#blank#}1{#/blank#}(be) three people. My father is a {#blank#}2{#/blank#} (farm) and goes to work in the field every day. He isn't good at {#blank#}3{#/blank#} (talk) but he gets on well with other people. My mother is very kind and is {#blank#}4{#/blank#} (friend) to everybody. So when I have {#blank#}5{#/blank#} problem I will turn{#blank#}6{#/blank#} her for help. My friends say I am clever, because when the teacher asks {#blank#}7{#/blank#} (we) very difficult questions, I can come up with the answers {#blank#}8{#/blank#} (quick). But my father thinks I am not patient. He says once I have difficulty in {#blank#}9{#/blank#} (solve) problems, I will {#blank#}10{#/blank#} (easy) give up. This is what I need to improve in the future.

I used to be very fat. I didn't consider{#blank#}1{#/blank#}to be a burden until some of my friends started to call me "Fatty", {#blank#}2{#/blank#} was more than I could bear. I tried hard to do something about it but was unable to find an effective way{#blank#}3{#/blank#}(reduce) my weight. Some suggested that I should have only a meal a day, and I thought the idea was worth{#blank#}4{#/blank#} (try). However, it did not help make any significant progress because, being too{#blank#}5{#/blank#} (hunger), I tended to eat a lot more the next day. If I {#blank#}6{#/blank#}(skip) a dinner, I wouldn't even have the energy to get out of bed the next morning. Since such things were repeated all the time, my frustration deepened day after day. Finally, a friend of mine advised me to go to {#blank#}7{#/blank#} fitness center. I gave it a try and it {#blank#}8{#/blank#}(real) worked wonders. Over the past several months I have lost more than 30 pounds. Now, I am much {#blank#}9{#/blank#}(thin). When my friends jokingly say I am as light {#blank#}10{#/blank#} a feather, I know I have rid myself of the burden.

    My friend had a chance to make a trip to Hong Kong{#blank#}1{#/blank#} August 15, 2015. He had dreamed about {#blank#}2{#/blank#} (visit) it since his boyhood and it was the first time that he{#blank#}3{#/blank#} (be) there. The following was what he had seen.

    Arriving there, he was {#blank#}4{#/blank#} (surprise) by its beautiful scenery and tall {#blank#}5{#/blank#} (building). As we all know, Hong Kong has the most skyscrapers in the world. Wherever he {#blank#}6{#/blank#} (go), he saw many smiling faces. People in Hong Kong were kind, generous, easy-going and ready to help others. Much to his surprise, he saw that people there always kept order in public places. {#blank#}7{#/blank#}a great number of people were waiting for the next train at the subway station, they were talking in such {#blank#}8{#/blank#} low voice as not to bother others.

    Chinese and English are the official languages of Hong Kong. English is {#blank#}9{#/blank#} (wide) used in governments, markets, service centers and other fields.

    Staying there for a week was a good experience for him, {#blank#}10{#/blank#} he would never forget.

    On May 18, it was announced that China had achieved success in drilling fire ice, a frozen {#blank#}1{#/blank#}(mix) of water and natural gas, from the South China Sea. {#blank#}2{#/blank#}(official) known as methane hydrates(甲烷水合物), fire ice produces a high amount of energy when {#blank#}3{#/blank#}(burn) and its chemical reaction produces nothing but dioxide and water.

    Fire ice, both clean and energy-intensive, {#blank#}4{#/blank#}(consider) the fuel of the future. Many countries, including the United States and Japan, have long been conducting research on fire ice, but extracting（提取）it from the bottom of the sea has been a common problem {#blank#}5{#/blank#}(trouble) all of them. But, the Chinese team succeeded in drilling fire ice for nearly eight successive days, {#blank#}6{#/blank#}is a big breakthrough.

    However, it is too early {#blank#}7{#/blank#}(say) a new energy source has been found. The world's total fire ice reserve is about 21,000 trillion cubic meters, which, if extracted, could meet the world's energy need

    {#blank#}8{#/blank#}1,000 years. But the successful test drilling of fire ice does not mean it can be extracted for {#blank#}9{#/blank#}(industry) use. China has to solve many problems before it can use fire ice as a source of energy.

    It's thought that only by 2025 at{#blank#}10{#/blank#} earliest might people be able to look at realistic commercial options.

    How are you getting along with your high school? It may be hard for you as this is the first time that you {#blank#}1{#/blank#}(leave) your parents. I know that you are now having trouble{#blank#}2{#/blank#}(communicate) with others. That's{#blank#}3{#/blank#}you are new here and people don't know about you. But I think you can follow the advice below.

    First, you should take{#blank#}4{#/blank#}active part in the discussions and show your own opinions about the matters, and at the same time, learn to listen to other people's views{#blank#}5{#/blank#}(careful). Second, you should learn about your classmates' likes and dislikes,{#blank#}6{#/blank#}can make you get familiar with them. Only in this way can you get to know more{#blank#}7{#/blank#}(difference) people and show them that you are just as friendly. I'm always here ready to help. We can take part in some{#blank#}8{#/blank#}(activity) together and I can introduce you to others.

    There's no need{#blank#}9{#/blank#}(worry) too much. People will know you more very soon and will like to make friends{#blank#}10{#/blank#}you if you can do as the above.