233У- ӢļӢļ

您现在的位置:233网校 >> 英语四级考试 >> 英语四级题库 >> 每日一练 >> 文章内容

2014年英语四级考试每日一练(5月25日)

导读:
在线测试本批《每日一练》试题,可查看答案及解析,并保留做题记录 >> 在线做题
  • 第1页:练习试题
阅读
1. 根据以下资料,回答58-68题:
Without regular supplies of some hormones our capacity to behave would be seriously impaired; without others we would soon die. Tiny amounts of some hormones can modify our moods and our actions, our inclination to eat or drink, our aggressiveness or submissiveness ( 顺从), and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form and may even determine an individual's behavioral capacities. Later in life the changing outputs of some endocrine ( 内分泌) glands (腺体) and the body's changing sensitivity to some hormones are essential aspects of the phenomena of aging.
Communication within the body and the consequent integration of behavior were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology (内分泌学) as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormones
secreting. This substance is secreted from cells in the intestinal ( 肠的 ) walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas ( 胰 ) to liberate pancreatic juice, which aids in digestion. By showing that special cells secret chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues, Bayliss and Starling demonstrated that chemical integration can occur without participation of the nervous system.
The term "hormone" was first used with reference to secreting. Starling derived the word from the Greek hormone, meaning "to excite or set in motion". The term "endocrine" was introduced shortly thereafter.
"Endocrine" is used to refer to glands that secrete products into the bloodstream. The term "endocrine" contrasts with "exocrine (外分泌)", which is applied to glands that secrete their products through ducts (导管) to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secretes pancreatic juice through a duct into the intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless glands.

The author's main purpose in this passage is to__________.
A.explain the specific functions
B.provide general information about hormones
C.explain how the term "hormone" evolved
D.report on experiments in endocrinology

2. 回答68-56题
An industrial society, especially one as centralized and concentratedas that of Britain, is heavily dependent on certain essential services: forinstance, electricity supply, water, rail and road transport, the harbors. Thearea of dependency has widened to include removing rubbish, hospital andambulance services, and, as the economy develops, central computer andinformation services as well. If any of these services ceases to operate, thewhole economic system is in danger.
It is this economic interdependency of the economic system whichmakes the power of trade unions (工会)such an important issue. Single trade unionshave the ability to cut off many countries' economic blood supply.
This can happen more easily in Britain than in some othercountries, in part because the labor force is highly organized. About 55 percentof British workers belong to unions, compared to under a quarter in the UnitedStates.
For historical reasons, Britain's unions have tended to developalong trade (行业) and occupational lines, rather than on an industry-by-industrybasis, which makes a wages policy, democracy in industry and the improvement ofprocedures for fixing wage levels difficult to achieve.
There are considerable strains and tensions in the trade unionmovement, some of them arising from their outdated and inefficient structure. Someunions have lost many members because of their industrial changes.
Others are involved in arguments about who should represent workersin new trades. Unions for skilled trades are separate from general unions,which means that different levels of wages for certain jobs are often a sourceof bad feelings between unions. In traditional trades which are being pushedout of existence by advancing technologies,unions can fight for their members'disappointing jobs to the point where the jobs of other union members are threatenedor destroyed. The printing of newspapers both in the United States and inBritain has frequently been halted by the efforts of printers to hold on totheir traditional highly-paid jobs.
Trade unions have problems of internal communication just asmanagers in companies do, problems which multiply in very large unions or inthose which bring workers in very different industries together into a single generalunion.Some tradeunion officials have to be re.elected regularly;others are elected,or even appointed,for life.Trade union officials have to workwith a system of“shop stewards”(工厂工人代表)in many unions,“shop stewards”being workers elected by other workers as theirrepresentatives at factory or work level.

Why is the trade union power crucial in Britain
A.Because the economy is very interdependent.
B.Because the unions have been established a long time.
C.Because there are more unions in Britain than elsewhere.
D.Because there are many essential services offered by the unions.

3. Questions{TSE} are based on the following passage.
  It was once thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic.Today,we know that although these are the areas with the worst air pollution,the problem is literally worldwide.On several occasions over the past decade,a heavy cloud of air pollution has covered the entire eastern half of the United States and led to health warnings
  even in rural areas away from any major concentration of manufacturing and automobile traffic.In fact, the very climate of the entire earth may be affected by air pollution.
  Some scientists feel that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels(coal and oil.is creating a“greenhouse effect”一holding in heat reflected from the earth and raising the world’s average temperature.If this view is correct and the world’s temperature is raised only a few degrees。much of the polar ice cap will melt and cities such as New Y0rk,Boston,Miami,and New Orleans will be under water.
  Another view,less widely held,is that increasing particulate matter in the atmosphere is blocking sunlight and lowering the earth’s temperature—a result that would be equally disastrous.A drop of just a few degrees could create something close to new ice age and would make agriculture difficult or impossible in many of our top farming areas.
  At present we do not know for sure that either of these conditions will happen,though one recent government report prepared by experts in the field concluded that the greenhouse effect is very likely.Perhaps,if we are very lucky,the two tendencies will offset each other and the world’s temperature will
  stay about the same as it is now.
  
According to the passage,people today think that air pollution________.
A.exists merely in urban and industrial areas
B.may have an effect on the entire earth
C.causes widespread damage in the countryside
D.is not so serious as it used to be

翻译题
4. What an interesting book______ (它真的值得一读).

5. When he realized the police had spotted him, the man made _____________ (尽快朝出口走去).
6. __________ (不少于30位)of his colleagues signed the letter.
7. We can learn that when a community physician manage insomnia, it is very important for him to ask the __________ of the patient.
8. 第30题为(  )

写作
9. 1.告诉他不同的度过假期的方式
2.各种方式的好处
3.希望他能过一个愉快且有意义的假期
A Letter to Cousin

10.  
中国国际出版集团(China International Publishing Group)是中国的、权威的外语出版发行单位。它坚持“让中国走向世界,让世界了解中国”的出版原则(philosophy),全心致力于中国外语教育与研究事业的发展,以及中外文化交流事业的拓展。为了加强对出版人才队伍的建设,满足日益增长的特殊出版业务的需要,该集团每年都要选派一些青年员工到国内外知名高等学府和研究机构进修。

责编:admin  评论  纠错

课程免费试听
γרҵ ʦ ԭ/Żݼ
ѧӢļƷࣨ﷨ʻ㡢룩 ѩ 100 / 100
ѧӢļƷࣨĶ⣩ ѩ 100 / 100
ѧӢļƷࣨ ѩ 100 / 100
ѧӢļƷࣨд ѩ 100 / 100