Texting while walking is something that most of us are guilty of．We can't help {#blank#}1{#/blank#}(reply)to that message we just received．However，while it's fun to keep up to what's going on，we may actually put{#blank#}2{#/blank#}(we)in danger．

    A team of researchers from UK recently found people{#blank#}3{#/blank#}use their phones while on the move walk differently．During the research，a group of 21 volunteers{#blank#}4{#/blank#}(ask)to walk around a street with obstacles(障碍物)such as a step.{#blank#}5{#/blank#}volunteers traveled the course a total of 12 times each，either writing or reading a message，making a call，or with no phone at all．It took the volunteers 118 percent {#blank#}6{#/blank#}(long)to complete the course while using a phone．They also paid attention to the travel path 51 percent more when they weren't using a phone．“Although there{#blank#}7{#/blank#}(be)no accidents，we should still be aware{#blank#}8{#/blank#}what's going on around us，”according to Matthew Timmis，co—author of the study．The big risk is suddenly—appearing situations，like someone suddenly walking in front of you．You are not going to be able to respond to that{#blank#}9{#/blank#}(swift)enough，so you may injure yourself or get injured．In a word，these hidden{#blank#}10{#/blank#} (danger)of texting while walking should be recognized to avoid injuries．

    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.