首页
登录
职称英语
Recent research had claimed that an excess of positive ions in the air could
Recent research had claimed that an excess of positive ions in the air could
游客
2023-08-03
58
管理
问题
Recent research had claimed that an excess of positive ions in the air could have an ill effect on people’s physical or psychological health. What are positive ions? Well, the air is full of ions, electrically charged particles, and generally there is a rough balance. If the balance becomes disturbed and a larger proportion of positive ions are found. This happens naturally before thunder storms, earthquakes or when winds such as the Mistral, Foehn, Hamsin or Sharav are blowing in certain countries. Or it can be caused by a build-up of static electricity indoors from carpets or clothing made of man-made fibers, or from TV sets, duplicators or computer display screens.
When a large number of positive ions are present in the air many people experience unpleasant effects such as headaches, fatigue, irritability, and some particularly sensitive people suffer nausea or even mental disturbance. Animals are also found to be affected, particularly before earth quakes; snakes have been observed to come out of hibernation, rats to flee from their burrows, dogs howl and cats jump about unaccountably. This has led the US Geographical Survey to fund a network of volunteers to watch animals in an effort to foresee such disasters before they hit vulnerable areas such as California.
Conversely, when large numbers of negative ions are present, then people have a feeling of well-being. Natural conditions that produce these large amounts are near the sea, close to water falls or fountains, or in any place where water is sprayed, or forms a spray. This probably ac counts for the beneficial effect of a holiday by the sea, or in the mountains with tumbling streams or waterfalls.
To increase the supply of negative ions indoors, some scientists recommend the use of ionisers; small portable machines that generate negative ions. They claim that ionisers not only clean and refresh the air but also improve the health of people sensitive to excess positive ions. Of course, there are the detractors, other scientists, who dismiss such claims and are skeptical about negative/positive in research. Therefore people can only make up their own minds by observing the effects on themselves, or on others, of a negative rich or poor environment. After all, it is debatable whether depending on seismic readings to anticipate earthquakes is more effective than watching the cat.
选项
A、They think they are mad.
B、They feel very tired.
C、They become violently sick.
D、They are too tired to do anything.
答案
D
解析
事实细节题。第二段第——句谈到了正离子会使人感到疲惫不堪,会使人感到恶心和精神错乱,所以B.“使人感到疲惫不堪”是正确答案。他们可能会精神错乱,但不是A.“他们觉得自己疯了”;他们可能会生病,但C中violently一词显然过于严重;D.“累到什么也干不了”,没有根据。错选其他答案的同学注意,要严格按照文章答题,不能随意增减意思。
转载请注明原文地址:http://tihaiku.com/zcyy/2893932.html
相关试题推荐
Whatifwecouldreadthemindofaterrorist?ResearchersatNorthwesternUni
Whatifwecouldreadthemindofaterrorist?ResearchersatNorthwesternUni
UsingdatafromaresearchstudythattookplaceintheU.K.whichaskedfa
UsingdatafromaresearchstudythattookplaceintheU.K.whichaskedfa
UsingdatafromaresearchstudythattookplaceintheU.K.whichaskedfa
[originaltext]Researchsubjectswhohavelivedwithlimitedhumancontacts
[originaltext]Researchsubjectswhohavelivedwithlimitedhumancontacts
A、Allthe55,000attendantsoftheresearchwereregularrunners.B、Onaverage,
AremarkablethinghappenedinNewYorkrecently:thestatelegislature,in
K根据research、effective和properlytrainednurses定位到K段。原文说。根据Olds的研究,秘诀是从训练有素的护士开始的,
随机试题
ThenotionSignifiervs.Signifiedis______contribution.A、Chomsky’sB、Saussure’s
【S1】[br]【S9】将from改为in。本题为短语动词的误用的问题。resultedfrom由……产生,如:Anydamageresulting
在()中,一般来说,对商品期货而言,当市场行情上涨时,在远期月份合约价格上升时,近期月份合约的价格也会上升,以保持与远期月份合约间的正常的持仓费用关系
[originaltext]W:Hello,I’mJennyJohnson.Howareyouthismorning?M:
F此处需要副词作状语,修饰从句谓语动词behave“表现”。根据下文的becauseofdepression“因为意志消沉”可知这个副词应该是消极意义的,所
社区人口学资料包括()A.社区总人口数、年龄性别构成 B.社区人群职业构成、负
A.白芍B.附子C.太子参D.商陆E.川乌含乌头胺的药材是()。
过流保护加装负荷电压闭锁可以()。 (A)加快保护动作时间; (B)增加
阅读文章,回答下面的问题。 感觉城市 刘元举 ①都市最好的建筑大都是留在广
下列属于自律组织的是()。A.中国银行业监督管理委员会 B.中国银行业协会
最新回复
(
0
)