问题 填空题

数据:2,3,4,4,3,2的平均数是______,中位数是______,极差是______.

答案

2,3,4,4,3,2的平均数是(2+3+4+4+3+2)÷6=3,

把这组数据从小到大排列为:2,2,3,3,4,4,

最中间两个数的平均数是(3+3)÷2=3,

则这组数据的中位数是3;

这组数据的最大值是4,最小值是2,

则极差是4-2=2;

故答案为:3,3,2.

材料分析题
资料二:表。

资料三:图2北海、钦州和防城港城市化水平。

资料四:图32005年六省(市、区)GDP各占全国比例。

(1)与铁路和公路运输相比,海运的优势是_________________。

(2)关于三城市2000~2004年的三次产业产值变化,下列叙述错误的是____(单选题,填选项字母)。 A、北海市第一产业产值逐年下降B、防城港市第二产业产值逐年上升C、钦州市第三产业产值逐年上升 D、第三产业产值上升最快的是北海市

(3)关于区域经济发展与三城市的城市化,下列叙述正确的是____(多选题,填选项字母)。 A、城市化速度最快的是北海B、2005年广西GDP小于重庆C、城市化水平最高的是防城港D、城市化水平最低的是钦州E、2005年西南五省(市、区)GDP之和小于广东

(4)分析北海、钦州和防城港三港口发展中遇到的共同问题。

___________________________________________________________________________________________

(5)提出北部湾经济区港口群的发展对策。

___________________________________________________________________________________________

阅读理解

London has a new magazine. But it’s not printed on paper. Everyone who has a television can receive it because it is on TV.

In order to read this magazine you have to have a decoder. Each page of it is numbered, so you only have to dial the number to choose which subject you want to read about. There’s a wide choice--- everything is included from cooking to the latest sports news.

If you want to read the news, the first thing you have to do is to turn to the index page which has an easy-to-remember page number, 100 for example. Then you start choosing what you want to read. The news is on pages 101 to 109, so you push out the numbers and the news appears written across your screen. Perhaps you want to go out in the afternoon, so you press 181, and a brightly colored weather map appears on the screen. But the weather is terrible so you decide to go shopping and dial 162 for a list of the week’s best bargains. But should you drive or take the train ? To answer the question you only have to press 189 for the traffic report. It’s very simple to use. But probably the best thing about the service is that it’s being updated all the time. Journalists type new material directly onto the screen and whole pages of the magazine can be replaced in minutes.

London has already had three services. One, transmitted(传输)by ITV, is called ORACLE, while the other two, on BBC, are called CEEFAX, because they let you see facts. Although CEEFAX and ORACLE have been operating for some time, they have not been well publicized. BBC engineers do not think that their idea will ever replace books and newspapers because they can be taken with you everywhere. But many people agree that this is a breakthrough as great as the invention of printing, which could change not just our reading habits but our whole way of life.

小题1:What is unusual about the mew magazine in London?

A.You can find any subject you want in it.

B.No paper is used to print the magazine.

C.There 1,000 page numbers in the index.

D.The speed of transmitting is astonishing.小题2:It’s clearly seen from the passage that ________.

A.it takes long for the service of the magazine to be updated

B.most of the postmen will be out of work someday

C.the readers can get all kinds of information without leaving home

D.everyone can read the magazine if there is a television at hand小题3:According to the passage, the “decoder” is used to help people to ________.

A.read the information transmitted by TV signals

B.broadcast special TV programs at home and abroad

C.dial the number to choose which subject you want to read about

D.find the exact page in which you can get information you need小题4:The passage is mainly about          .

A.a new magazine printed in London

B.a popular TV program with three services

C.a great breakthrough in printing

D.an up-to-date way of keeping up to date