题目内容

【题目】读板块构造示意图,完成下列问题。

(1)将六大板块名称填入图中适当位置。
(2)世界火山地震带主要分布在洋周围。
(3)我国处在板块、板块和板块的交界地带,因而是一个地震较为频繁的国家。
(4)是分析红海将成为世界第五大洋的原因

【答案】
(1)


(2)太平
(3)亚欧;印度洋;太平洋
(4)位于亚洲和非洲之间的红海在不断扩张
【解析】(1)板块运动学说认为,由岩石组成的地球表面并不是一块整体,而是由板块拼合而成的。全球大致划分为亚欧板块、太平洋板块、非洲板块、美洲板块、印度洋板块和南极洲板块六大板块,各大板块处于不停的运动中。(2)世界上火山与地震活动最剧烈的地方,主要位于两大地带:环太平洋火山地震带;横贯欧洲南部到亚洲的阿尔卑斯﹣喜马拉雅(向南、向东延伸到中南半岛西侧和马来群岛南缘)火山地震带。(3)我国处在亚欧板块、印度洋板块和太平洋板块的交界地带,因而是一个地震较为频繁的国家。(4)红海位于印度洋板块与非洲板块之间,因为印度洋板块和非洲板块正不断发生张裂运动,因此红海的面积应不断扩大,形成新的大洋。
所以答案是:(1) ;(2)太平;(3)亚欧;印度洋;太平洋(4)位于亚洲和非洲之间的红海在不断扩张。

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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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