问题 单项选择题

在A970年到A9D0年之间,世界工业的能源消耗量在达到顶峰后下降,A9D0年虽然工业总产出量有显著提高,但工业的能源总耗用量却低于A970年的水平。这说明,工业部门一定采取了高效节能措施。最能削弱上述结论的是()

A.A970年前,许多工业能源的使用者很少注意节约能源

B.B0世纪70年代一大批能源密集型工业部门的产量急剧下降

C.工业总量的增长A970年到A9D0年间低于A960至l970年间的增长

D.B0世纪70年代,许多行业从使用高价石油转向使用低价的替代物

答案

参考答案:B

解析:根据题干“而生态平衡或生态稳定又是生态生产的必要形式,只有在这种形式或形态下,生态生产才具有最大生产力和最高生产量.”得出“要想扩大生态生产的数量,提高它的质量,必须维护生态系统的平衡和稳定”.

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

单项选择题