问题 单项选择题

网络成瘾的心理机制比较复杂,有需要、动机等动力因素和抑郁、孤独、自制力差等人格特殊因素,专家认为,体育锻炼的人有较强的自制力,体育锻炼与网络具有娱乐性、交往性等多种相同或相似的功能。网络使用者利用丰富多彩的体育活动和竞赛来充实业余生活,这对减少上网时间以及网络成瘾综合征的养成具有积极意义。
对这段文字的主旨概括最准确的是()。

A.评论体育锻炼对人格培养的重要意义

B.指出体育锻炼作为网络替代品可能性

C.阐述体育锻炼对治疗网络成瘾的价值

D.说明体育锻炼具有促进心理健康的基本功能

答案

参考答案:C

解析:

本题属于主旨概括题。题干首先介绍了网络成瘾的心理机制,接着介绍了解决这一问题的途径即体育锻炼,然后具体介绍体育锻炼对人格的培养和网络成瘾综合征等方面重要的作用。A项和D项只是说明了题干中的部分内容,B项中的“可能性”在题干中并未提及,故均可排除,由此可知C为正确答案。故选C。

单项选择题
填空题

Recycling Paper


The process of recycling paper can help to reduce deforestation and energy consumption on a significant scale. There are many different reasons why we should recycle paper products, and some of these are (26) in the paragraphs below.
Energy consumption will always be on the (27) as population levels grow, and so any manufacturing processes which help to reduce energy consumption are (28)
The Energy Information Administration (EIA) claim that there can be as (29) as a 40% energy saving when recycling paper over producing paper (30) the direct raw material.
Although recycling paper has many (31) , it also has its drawbacks. One of these drawbacks is that we cannot recycle the (32) paper product for eternity, as the fibers contained within the paper degrade over time, (33) their strength and length.
On (34) , an individual paper fiber can only be recycled a (35) of six times. Although this is a significant drawback, the six time recycling process will help to (36) a great deal of energy when you consider (37) much paper there is to be recycled.
If paper fibers can be recycled up to 6 times, and we recycled all paper products, this could help to (38) the intensity of deforestation for paper products up to a factor of 6.
With paper production said to (39) around 40% of harvested wood, and paper said to (40) around 90% wood, you can see how recycling paper is an important process for the (41) of our forests.
Today, the use of recycled paper products is on the increase, as more and more people begin to recycle paper (42) products around the home.
Although there are slight differences in the recycling processes of different (43) of paper products (e.g. corrugated, mixed paper, newspaper products), we are able to recycle just about any type of paper product around today.
The recycling logo helps to (44) a recyclable product and can also sometimes help to identify if the product contains any recycled material, in the form of a percentage. This helps a consumer to identify the (45) of recycling various products.

A. fall B. rise C. top D. surface