问题 选择题

与环境人口容量呈负相关的因素是(     )

A.消费水平

B.资源数量

C.科技水平

D.生产能力

答案

答案:A

题目分析:本题考查环境人口容量。影响环境人口容量的因素有:资源的丰富程度、科技水平、经济发达程度、对外开放程度、人口受教育水平及消费水平等。环境人口容量与资源的丰富程度、科技水平、经济发达程度、对外开放程度、人口受教育水平成正比,与消费水平成反比。所以本题选择A选项。

点评:本题难度不大,知识性试题,解题的关键是能从资源、科技、人口消费水平和地区开放水平对人口容量的影响,反映出两者之间的关系。

单项选择题
阅读理解

任务型读写。

     阅读下面短文,根据所读内容在表格中的空白处填入恰当的单词。

     注意:每个空格只填一个单词。

                                                      Robot (机器人) revolution

     The day that a robot wakes you up, cleans your room and walks your dog might still be a few decades

off. But increasingly, engineers are saying that robots are going to make the leap (跳跃) from the factory

floor to your family room.

     Companies like Sony and General Electric are working on designs for small robots. Products like the

Roomba, a robot that can clean floors, are flying off the shelves. On the cover of a recent issue of Scientific

American magazine, Bill Gates predicted the "Dawn of the Age of Robots".

     What's behind this new era (时代)? It's partly a matter of technology. Devices that can recognize and

respond (回应) to a human voice have been developed. There are now a few different ways for robots to

move around. They can walk, crawl (爬行) or ride on wheels. They are being made smaller and smaller.

They are also becoming more and more energy efficient.

     A bigger part of the story is on the demand side. From the day Robert Adler invented the television remote

control in the 1950s, people around the world have tirelessly searched for ways to get lazier.

     Also take into consideration the increasing wealth of rich people, the time appears ripe to introduce robots

to ease our daily lives.

     To be sure, robots that walk on two legs and talk like people are still too complex for our present

engineering abilities. Today's robot revolution is to make them for everyday use. Robots will do basic

housework such as cleaning or gardening, or just help you have more fun on the basketball court.

     What makes a robot different from an ordinary cleaning machine is not the presence of computer chips

(芯片). Nowadays even your microwave has a computer chip. It is the ability to sense and make changes

to the environment (环境) in real time.

     For example, a floor-cleaning robot should be able to sense your scared cat and move out of the way.

Today's computing ability is, for the first time, able to make machines that could "think", at least in certain

limited ways.