题目内容

【题目】我国第一级阶梯与第二级阶梯的分界线是

A.昆仑山-祁连山-横断山 B.大兴安岭-太行山-巫山-雪峰山

C.大兴安岭-阴山-贺兰山 D.喜马拉雅山

【答案】A

【解析】

试题分析:我国地势第一级阶梯与第二级阶梯的分界线是昆仑山-祁连山-横断山,大兴安岭-太行山-巫山-雪峰山是我国地势第三级阶梯与第二级阶梯的分界线。

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【题目】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 information
B.give password to others
C.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 people
B.meet the people on line alone
C.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 Internet
B.relax in your free time
C.have a face-to face meeting with anyone you met online
(5)What's the best title of this passage?
A.Learning on the Internet
B.Internet Safety Rules
C.Make friends on the Internet

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