问题 单项选择题

下列有关生物圈的表述有误的一项是( )。

A.生物圈是由大气圈、水圈、岩石圈、土壤圈这几个圈层的交接的界面所组成的

B.生物圈为生物的生长和繁殖提供了必要的物质和所需要的能量

C.生物圈是地球上最大的生态系统,包含着无数小的生态系统

D.生物圈中各种生命体物质以太阳能为动力,进行着小范围内的循环

答案

参考答案:D

解析:选项D的正确表述为“生物圈中各种生命体物质以太阳能为动力,进行着大规模的能量和物质(元素)的循环。”生物圈总处在不断发展变化之中,他的每个发展阶段具有历史形成的相对稳定的物质结构和组成。生物圈现阶段的物质生态平衡是生物有机体与其栖居的自然环境经过长期相互作用、协调适应共同形成的。

阅读理解

阅读短文(A),并根据所读内容完成短文(B)。

(A)

  People have been collecting things for thousands of years.Sir Hans Sloan

was a great collector,and when he died in the eighteenth century his collections

were put together in the British Museum.

  It is from special collections in museums that people can learn about their

own countryside,about other areas of the country and other countries of the

world.If it were not for some people's love of exploring and collecting,there

would be no museums.We would not be able to learn about life in other

countries.Many of the collections are of ancient things.Not everyone can afford

the time or money to explore and collect for themselves.

  Some people think that ancient relics from other countries should be left in

the countries in which they have been found.They think it's wrong that people

from other country should "steal" valuable articles and take them away.In the

nineteenth century rich people visited the Pharaohs' tombs in Egypt.They took

valuable things from the tombs and brought them back for their collections.Some

people think that these treasures should be returned.

(B)

  Since thousands of years ago,people 1.___things.Sir Hans Sloan was a great

British 2.___,and when he died in the eighteenth century his collections were

3.___ together in the British Museum.People can learn about the 4.___ from

special collections in museums.There would be no 5.___ if it were not for some

people's love of exploring and collecting.It needs time and money 6.___and

collect.But some people think that ancient relics from other countries should be l

eft in the countries 7.___they have been found.

单项选择题