I was nine years old when I learnt to ride a bike. The bike was a birthday present from my uncle. You can imagine how  {#blank#}1{#/blank#}(excite) I was when I saw the bike, and I begged my uncle to teach me how  {#blank#}2{#/blank#}(ride)it right away. However, before I got on the bike, I felt  {#blank#}3{#/blank#}(extreme)nervous and I was afraid that I would fall off and hurt {#blank#}4{#/blank#}(me). My uncle held onto the seat andhelped me to get  {#blank#}5{#/blank#}the bike. While I was riding, he wasrunning along beside me, holding the seat so I would not fall over. I was so {#blank#}6{#/blank#}(grate) to him for his help.

      As I was practicing, I became more and more confident. Then, Iheard my uncle shouting, “You are riding it by yourself now!” I was bothexcited and scared. I was really riding by myself, but  {#blank#}7{#/blank#}if I fell off? Could I use the brakesto stop? As I was wondering about this, my uncle ran after me and got hold ofthe bike. I  {#blank#}8{#/blank#}(slow) down and came to a stop. Myheart was still beating fast when I got off the bike. {#blank#}9{#/blank#} (late) that day, having learnt how to get onthe bike and get off it, I felt like I was walking on air! I am still thankfulto my uncle for teaching me to ride a bike on my {#blank#}10{#/blank#} (nine) birthday.

    You see them everywhere: people walking with their attention {#blank#}1{#/blank#}（concentrate）on their smartphone screens on busy streets. But walking and texting can be dangerous and cities in the United States and Europe have stepped {#blank#}2{#/blank#} their efforts to deal with it.

    In Honolulu, using the phones while crossing the street is forbidden. It has passed a law that says “No pedestrian （行人） shall cross a street or highway while viewing a mobile electronic device. In other words, do not look at a screen when you cross the street{#blank#}3{#/blank#} you could be fined. Honolulu is the first major U.S. city{#blank#}4{#/blank#} （forbid）what is called “distracted walking”.

    People {#blank#}5{#/blank#} text while walking are nearly four times as likely to have at least one dangerous action. A lot of people do it {#blank#}6{#/blank#} they know it is dangerous. They tell themselves that it is important.

    Using phones while walking may lead to injuries and deaths, but it seems to be a global problem. Pedestrian deaths {#blank#}7{#/blank#}（increase）as the use of cell phones rises in the past 5 years, and it is expected that the tendency will continue.

    Other cities have come up with creative ways to help protect those using cellphones while walking. A small town near Amsterdam has set up special crosswalks with flashing lights on the ground. When the traffic lights turn red or green,{#blank#}8{#/blank#} do the lights on the ground, reminding pedestrians when it's safe to cross. In a town of Germany, similar lights were used after a teenager using her smart phone was hit and seriously{#blank#}9{#/blank#}（injure）.

    If you still want to text while walking you could avoid being fined in Honolulu {#blank#}10{#/blank#}using voice-controlled digital assistant（数字助手） like Siri or Google Assistant Or you could just wait until you are again, safely off the street.

    Savanna, 11, is possibly one of our next great experts of the heart disease. After visiting her Sunday school teacher, who was about to perform a heart {#blank#}1{#/blank#} (operate) at the hospital, Savanna's curiosity led towards a deep appreciation of the heart and its importance to the human body.

    Encouraged by her parents to research further matters of the heart, Savanna learned that one in three of her peers (同龄人) {#blank#}2{#/blank#} (be) suffering from childhood fatness, {#blank#}3{#/blank#} can lead to heart diseases. She began making YouTube videos sharing with the world ways to have a better health and create a happy, healthy heart.

    In 2016, Happy Heart Advice launched its Happy Heart Challenges, {#blank#}4{#/blank#} (provide) over 300 hundred children and families {#blank#}5{#/blank#} education and free resources for healthy living. In June, she {#blank#}6{#/blank#} (invite) as an important speaker at the 9th Biennial Obesity Conference where she shared valuable information on how to form healthy eating {#blank#}7{#/blank#} (habit) and everyday lifestyles, and was honored by the American Heart Association for her work and effects in the health community at such {#blank#}8{#/blank#} early age.

    She's currently working on an app that will make it {#blank#}9{#/blank#}(easy) for moms and families to shop for “Happy Heart-approved Food”. She makes it her life's goal {#blank#}10{#/blank#} (make) sure kids have healthy hearts.