计算或化简：

   Many children use the Internet to get useful knowledge and information, and to relax in their free time. But some of them are not using it is a good way. Here are some rules to make sure you are safe and have fun on the Internet.
  Make rules for Internet use with your parents. For example, when you can go online, for how long and what activities you can go online.
Don't give your password(密码) to anyone else, and never give out the following information—your real name, home address, age, school, phone number or other personal information.
   Check with your parents before giving out a credit card(信用卡) number. Never send a photo of yourself to someone by e－mail unless your parents say it's OK.
   Check with your parents before going into a chat room. Different chat rooms have different rules and attract different kinds of people. You and your parents ought to make sure it's a right place for you.
   Never agree to meet someone you met on the Internet without your parents' permission(允许). Never meet anyone you met online alone.
Always remember that people online may not be who they say they are. Treat everyone online as strangers.
   If something you see or read online makes you uncomfortable, leave the site. Tell a parent or teacher right away.Treat other people as you'd like to be treated. Never use bad language.
   Remember — not everything you read on the Internet is true.

将下列内容概括成一句话新闻，不超过14个字。
      中国科学院动物所的汪松教授上月在英国爱丁堡市接受了世界著名的爱丁堡科学奖。1998年起设立的爱丁堡科学奖，每年颁发给一位世界上有杰出贡献的科学家。汪松教授是中国获得这一奖项的第一人。

名篇名句默写

①涉江采芙蓉，兰泽多芳草。采之欲遗谁？____。____，长路漫浩浩。

②客有吹洞箫者，倚歌而和之。其声呜呜然，如怨如慕，____，____，不绝如缕。

③《游褒禅山记》中论述成功做好一件事，不仅要有“志”与“力”，还要借助“物”的句子是：“有志与力，____。____ ，亦不能至也”。

④以桑叶的枯黄飘落，比喻女子的憔悴和被弃的句子是：____。____ 。

⑤古代诗文中，有许多描写祖国山河壮美的名句。如苏轼《赤壁赋》中的“白露横江，____，____，凌万顷之茫然。”。

不等式组 $\{\begin{array}{c}2-x>1，①\\ \frac{x+5}{2}\ge 1，②\end{array}$ 中，不等式①和②的解集在数轴上表示正确的是（   ）