题目

．汉字激光照排系统的发明人、两院院士王选教授曾说过：“一个献身科学的人注定要比常人多吃苦，他必然会失掉常人享受的许多乐趣，但他也能得到常人所享受不到的很多快乐。”他的话表明       ①从事科研工作更能实现人生价值   ②人生的价值不在于人的自然本性的满足 ③献身科学的人更能实现苦乐转化   ④人生的价值不应以个人的得失作为标准 A．①②    B．①④    C．②③    D．②④  根据短文内容，从每小题A、B、C三个选项中选出一个最佳答案。 (C)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 in 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 leak out the following information--your name, home address, age, school, phone number or other personal information. Check with your parents before giving out a credit(信用)card number.Never send a photo of yourself to someone in e-mail unless your parents say it's OK.Never agree to meet someone you met on the Internet without your parent's permission(允许). Never meet anyone you met on line alone.Always remember that people online may not be who they say they are. Remember that not everything you read on the Internet is true.（1）It's good for children to ________ on the Internet.A.get useful knowledge and informationB.give password to othersC.give out a credit card number（2）If you want to meet a friend online, you should ____________.A.send a photo of yourself to the peopleB.meet the people on line aloneC.get your parent’s permission（3）The underlined phrase “leak out” in the third paragraph（段）may mean “________.”A.收藏B.泄露C.分发（4）If your parents don't agree, never ________.A.read anything on the InternetB.relax in your free timeC.have a face-to face meeting with anyone you met online（5）What's the best title of this passage?A.Learning on the InternetB.Internet Safety RulesC.Make friends on the Internet