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．

    After a long journey, we arrived in Jiuzhaigou late at night. The tour guide {#blank#}1{#/blank#}(tell) us its name was from the nine Tibetan villages distributed along the valleys,{#blank#}2{#/blank#} had the reputation of “fairyland on earth”.

    The guide collected us at 8 am {#blank#}3{#/blank#} next morning. Then we set off.

    Jiuzhaigou was famous {#blank#}4{#/blank#} the 118 beautiful lakes and the many astonishing waterfalls (瀑布). Clear streams in the valleys collected in beautiful blue lakes, while in some places they collected into waterfalls. The lakes were pure enough{#blank#}5{#/blank#}(see) to the bottom, and they provided fantastic reflections of the facing trees and mountains. This{#blank#}6{#/blank#} (real) was a place to lose a day in.

After the{#blank#}7{#/blank#} (amaze) visit to the valley, we were treated to a well made singing and dancing show about Tibetan life. The{#blank#}8{#/blank#}( performer) had beautiful traditional clothes, provided by {#blank#}9{#/blank#}(they) families.

    When the sun set, I found that time slipped away, and the tour was over. Although I hadn't explored all the sights, I felt able to enjoy the heavenly {#blank#}10{#/blank#}(beautiful). It's absolutely different from UK. Oh, beautiful Jiuzhaigou, goodbye!

The college entrance examination is just around the corner. {#blank#}1{#/blank#} (assign) and tests will keep many of you up late at night, and you may plan to make up for your{#blank#}2{#/blank#} (lose) sleep during the weekends. But is it useful?

A study shows that the habit of sleeping in{#blank#}3{#/blank#} weekends doesn't fix the damage done by a lack of sleep during the week. Even {#blank#}4{#/blank#} (bad), it may damage your health.

In the study, {#blank#}5{#/blank#} was conducted over 10 days, 36 healthy young men and women with different sleep requirements {#blank#}6{#/blank#} (divide) into three groups. The researchers found that people who lacked sleep ate more snacks and gained {#blank#}7{#/blank#} (weigh) quickly. That could be partially due to the shifting of the{#blank#}8{#/blank#} (biology) clock and changes to certain body hormones especially hunger hormones.

And {#blank#}9{#/blank#} they tried to sleep for as long as they wanted to on weekend, it was still insufficient(不够的) to meet standard sleep time because they found it difficult to fall asleep. Moreover, they were more likely{#blank#}10{#/blank#}(show) increased sensitivity (敏感性) to insulin(胰岛素) in both their muscles and their livers.