8月3日，第三届全域旅游推进会在西安举办，国家旅游局发布了《2017全域旅游发展报告》，同时举行了全域旅游示范省（区）创建单位颁牌仪式，将图中5个省新增为全域旅游示范省创建单位。截止目前，全国省级全域旅游示范区创建单位增至7个。

【善待他人 融洽友情】

八年级学生小兰写信给原来的同桌小敏诉说没有朋友的烦恼。她说：“转学到一中以后，也许大家还不熟的缘故吧，我变得孤僻、冷漠，课下我不愿和同学交谈、开玩笑，课堂上不愿发言……”当前有部分中学生还经常抱着“你不和我交朋友，我还不稀罕和你交朋友呢”的心理来为人处事。

    Anorexia nervosa (神经性厌食症) is an eating disorder that I struggled with for most of my middle school years and a part of my high school years.

    At Riverview,1was usually a nightmare for me. As I 2 the dining hall, all the eyes would be fixed upon my bony figure. I would take my place at a table full of friends and 3 to enjoy a "normal" lunch. The 4 was that I would not always eat lunch, and that greatly 5 my friends. They would watch to make sure that I was eating properly, almost 6 food into my mouth.

    And then, I transferred to Madison High School. I decided not to tell anyone at that school about my eating disorder since I had almost 7 by that time. Strangely, I stopped fearing lunch when I started at Madison. No one knew that I had an eating disorder,8 they did not care what I ate. This 9 a huge amount of stress from my life. It was still hard for me to eat in front of others, which is 10for an anorexic, but I was able to put some of my 11 aside.

    I was thankful for the students at Riverview, but they knew me only as an anorexic. My friends cared about my health, but they 12 to care about me as a person. Truthfully, all I wanted was for them to 13 me and not to fix on my eating disorder.

    The students at Madison took the time to know who I 14 was. They had no idea that I had been an anorexic, so that a particular label did not 15 their opinions of me. I was finally 16 for my talents and achievements, not my failures. I was honored as a good student. I was no longer afraid to show my true 17.

    My days as an anorexic taught me many lessons that I would never 18. They taught me about life and how to be a better friend. I learned about the joy of 19 tasks such as eating lunch. I appreciated the people who helped me to see that there is more 20 life than having an eating disorder.

如图所示，一个边长L=10cm，匝数N=100匝的正方形线圈abcd在匀强磁场中绕垂直于磁感线的对称轴OO′匀速转动，磁感应强度B=0.50T，角速度ω=10π rad/s，外电路电阻R=4.0Ω，线圈内阻r=1.0Ω．

则线圈转动的周期____，感应电动势的最大值____；线圈由图中所示位置开始计时，感应电动势的瞬时表达式____．

       America is a mobile society. Friendships between Americans can be close and real, yet disappear soon. They don't feel hurt. If the same two people meet again, even years later, they pick up the friendship. This can be quite difficult for us Chinese to understand. Friendships between us develop more slowly but may become lifelong feelings, extending（延伸）deeply into both families.
      There is another difficult point for us to understand .Although Americans treat friends warmly in their personal everyday lives, they don't show their politeness to them if it requires a great deal of time. But in China, we are usually generous with our time. We, as hosts, will appear at an airport even in the middle of the night to meet a friend. We may take days off from our work to act as guides to our friends: It is opposite in America, Americans cannot manage the time to do a great deal with a visitor outside their daily plans. They will probably expect the visitors to get themselves from the airport to the hotels. And they expect the visitors will phone them from there. Once the visitors arrive at their homes, the welcome will be full, warm and real.
       For Americans, it is often considered more friendly to invite a friend to their homes than to restaurants, except for business matters. Americans are ready to receive us foreigners at their homes, share their holidays, and their home life. So accept their hospitality（好客）at home and enjoy your visit in America!