Little Free Library is a nonprofit organization that inspires a love for reading and builds community. It is also referred to {#blank#}1{#/blank#} neighborhood book exchanges around the world. This is a creative idea {#blank#}2{#/blank#} (think) up by Todd Bol and Rick Brooks in 2009, which seeks {#blank#}3{#/blank#} (put) small book exchange boxes right in front of a house or on a street corner to offer free books to {#blank#}4{#/blank#} (member) of the local community. Mini libraries of all shapes and sizes exist, from a {#blank#}5{#/blank#} (bright) painted wooden house to a library based on Doctor Who's TARDIS.

     {#blank#}6{#/blank#} makes the idea so special? Their website states: "Little Free Libraries have a unique, personal touch and there is an understanding that people are sharing their favorite books with their community. These are not just any old books {#blank#}7{#/blank#} a carefully organized collection. Besides, the library {#blank#}8{#/blank#} (it) is a piece of neighborhood art!"

    Through Little Free Libraries, millions of books {#blank#}9{#/blank#} (exchange) each year among readers of all ages and backgrounds. They also play an important role in remote areas by {#blank#}10{#/blank#} (provide) access to books and encouraging a love for reading.

    In China, the history of people planting and using bamboo can date back as far as 7000 years. As early as the Shang Dynasty, bamboo was being used in ancient peopled dally lives. It was used for food, clothing, housing, transportation,{#blank#}1{#/blank#} (music) instruments and even weapons.

The {#blank#}2{#/blank#}(apply) of bamboo in science and technology is thrilling. In 251 BC, Li Bing, in Sichuan,{#blank#}3{#/blank#} (lead) the local people in building the Dujiang Weirs, the first irrigation network in the world, in which bamboo played {#blank#}4{#/blank#}important role. The world's oldest water piper was also {#blank#}5{#/blank#} (make) of bamboo. During the Han Dynasty, the people in Sichuan {#blank#}6{#/blank#}(success) sank a 1600-metre-deep well with thick bamboo ropes. This technology did not spread to Europe{#blank#}7{#/blank#}the 19th century, and it was by using the technology {#blank#}8{#/blank#} the Americans drilled the first oil well in Pennsylvania in 1859.

    In Chinese culture, bamboo is well-known as {#blank#}9{#/blank#}of the “four gentlemen” in plants. To many distinguished men，bamboo is a symbol of goodness and honesty. It is always closely related to people of positive spirits. Bamboo culture contributes to encouraging People to hold on when {#blank#}10{#/blank#}(face) tough situations.

    In the US, April is National Volunteer Month,{#blank#}1{#/blank#} recognizes and thanks volunteers who lend their time, talent, and support to causes they care about in their{#blank#}2{#/blank#} (community).

    The very nature of volunteering means choosing to work without being paid for it. As a result, people tend to do things they feel strongly{#blank#}3{#/blank#} (concern) about.

    For students, valuable lessons may be learned outside class.{#blank#}4{#/blank#} (consequent), in many parts of the US, volunteering is often taken into consideration when vacations{#blank#}5{#/blank#} (plan). Unlike his classmates, Andrew Makhoul,{#blank#}6{#/blank#} university student, spent his 2012 spring break volunteering at an orphanage (孤儿院),{#blank#}7{#/blank#} (locate) in one of the poorest and most violent parts of Guatemala and depending{#blank#}8{#/blank#} volunteers to stay open. Makhoul's first time as a volunteer only lasted a week, but by the end of that week, he knew he{#blank#}9{#/blank#} (will) be back soon—because he saw love and hope. “If you go out and make some good things happen, you will fill the world with hope, and you will fill{#blank#}10{#/blank#} (you) with hope,” former US president wrote on social media in 2016.

    It is predicted that the Chinese space station will be built mostly by machine. China hopes to have the space station{#blank#}1{#/blank#}(complete) by 2022 and it is expected to operate for at least 10 years.

    China also plans to land a probe（探测器）on Mars by 2020. Until now, China has completed a total of five manned space missions. And, in 2003, it{#blank#}2{#/blank#}(successful) landed a probe on the moon.