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「Withoutregularsuppliesofsomehormonesourcapacitytobehavewouldbeseriouslyimpaired;」相关问答题
大学英语六级

1、【题目】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 moods and actions, our inclination to eat or drink, our aggressiveness or submissiveness, 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 glands 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 as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormone secretion. This substance is secreted from cells in the intestinal walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas 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 could occur without participation of the nervous system.

The term “hormone” was first used with reference to secretion. Starling derived the term 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 secret products into the bloodstream. The term “endocrine” contrasts with “exocrine”, which is applied to glands that secret their products though ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secrets pancreatic juice through a duct into the intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless.

1.What is the author’s main purpose in the passage?

A.To explain the specific functions of various hormones.

B.To provide general information about hormones.

C.To explain how the term “hormone” evolved.

D.To report on experiments in endocrinology.

2.The passage supports which of the following conclusions?

A.The human body requires large amounts of most hormones.

B.Synthetic hormones can replace a person’s natural supply of hormones if necessary.

C.The quantity of hormones produced and their effects on the body are related to a person’s age.

D.The short child of tall parents very likely had a hormone deficiency early in life.

3.It can be inferred from the passage that before the Bayliss and Starling experiments, most people believed that chemical integration occurred only___.

A.during sleep.

B.in the endocrine glands.

C.under control of the nervous system.

D.during strenuous exercise.

4.The word “liberate” could best be replaced by which of the following?

A.Emancipate B.Discharge C.Surrender D.Save

5.According to the passage another term for exocrine glands is___.

A.duct glands

B.endocrine glands

C.ductless glands

D.intestinal glands.

答案:

BDCBA

解析:

暂无解析

1、【题目】Part IV Translation

As the source of aluminum is almost inexhaustible, we can expect that more and more uses will be found for this versatile metal. (Passage Two)

答案:

由于铝的资源几乎是无止境的,我们可预计对这种多用途的金属将会发挥越来越多的用途。

解析:

暂无解析

1、【题目】翻译训练:普通话与方言

中国土地广阔,人口众多。尽管全国都讲汉语,但是不同地区的人说汉语的方式不同,这被称为方言。方言一般被称为地方话,是汉语在不同地区的分支,只在特定地区使用。汉语方言非常复杂。它们有以下三方面不同:发音、词汇和语法。发音的区别最为显著。2000多年前,中国人发现社交时应该使用统一的语言。和方言相比,普通话(mandarin)能被所有人理解。普通话有利于不同种族、地区人民之间的信息传递和文化交流。

答案:

China has a vast land and a large population. Even though the Chinese language is spoken all over the country, people in different areas speak it in different ways, which are called dialects. Generally called local languages, dialects are branches of the Chinese language in different regions, and are only used in certain areas. Dialects of the Chinese language are very complicated. They differ from each other in three aspects: pronunciation ,vocabulary and grammar. And the difference in pronunciation is the most outstanding. Over2,000 years ago, Chinese people realized that a common language should be used in social activities. Compared with dialects,mandarin can be understood by all people. It is beneficial to information transmission and cultural exchange between ethnic groups and people indifferent places..

解析:

暂无解析

1、【题目】We can begin our discussion of “population as global issue” with what most persons mean when they discuss “the population problem”: too many people on earth and a too rapid increase in the number added each year. The facts are not in dispute, It was quite right to employ the analogy that likened demographic growth to “a long, thin powder fuse that burns steadily and haltingly until it finally reaches the charge and explodes.”

To understand the current situation, which is characterized by rapid increases in population, it is necessary to understand the history of population trends. Rapid growth is a comparatively recent phenomenon. Looking back at the 8,000 years of demographic history, we find that populations have been virtually stable or growing very slightly for most of human history. For most of our ancestors, life was hard, often nasty, and very short. There was high fertility in most places, but this was usually balanced by high mortality. For most of human history, it was seldom the case that one in ten persons would live past forty, while infancy and childhood were especially risky periods. Often, societies were in clear danger of extinction because death rates could exceed their birthrates. Thus, the population problem throughout most of history was how to prevent extinction of the human race.

This pattern is important to notice. Not only does it put the current problems of demographic growth into a historical perspective, but it suggests that the cause of rapid increase in population in recent years is not a sudden enthusiasm for more children, but an improvement in the conditions that traditionally have caused high mortality.

Demographic history can be divided into two major periods: a time of long, slow growth which extended from about 8,000 BC.till approximately AD. 1650. In the first period of some 9600 years, the population increased from some 8 million to 500 million in 1650. Between 1650 and the present, the population has increased from 500 million to more than 4 billion. And it is estimated that by the year 2000 there will be 6.2 billion people throughout the world. One way to appreciate this dramatic difference in such abstract numbers is to reduce the time frame to something that is more manageable. Between 8000BC and 1650, an average of only 50,000 persons was being added annually to the world’s population each year. At present, this number is added every six hours. The increase is about 80,000,000 persons annually.

1.Which of the following demographic growth pattern is most suitable for the long thin powder fuse analogy?

A.A virtually stable or slightly decreasing period and then a sudden explosion of population.

B.A slow growth for a long time and then a period of rapid, dramatic increase.

C.Too many people on earth and a few rapid increase in the number added each year.

D.A long period when death rates exceeds birthrates and then a short period with higher fertility and lower mortality.

2.During the first period of demographic history, societies were often in danger of extinction because___.

A.only one in ten persons could live past 40.

B.there was higher mortality than fertility in most places.

C.it was too dangerous to have babies due to the poor conditions.

D.our ancestors had little enthusiasm for more children.

3.Which statement is true about population increase?

A.There might be an increase of 2.2 billion persons from now to the year 2000.

B.About 50,000 babies are born every six hours at present.

C.Between 8000 BC and the present, the population increase is about 80,000,000 persons each year.

D.The population increased faster between 8000BC and 1650 than between 1650 and the present.

4.The author of the passage intends to___.

A.warn people against the population explosion in the near future.

B.compare the demographic growth pattern in the past with that after 1650.

C.find out the cause for rapid increase in population in recent years.

D.present us a clear and complete picture of the demographic growth.

5.The word “demographic” in the first paragraph means___.

A.statistics of human.

B.surroundings study.

C.accumulation of human.

D.development of human.

答案:

ABADA

解析:

暂无解析

1、【题目】Iftheoldmaximthatthecustomerisalwaysrightstillhasmeaning,thentheairlinesthatplytheworld’sbusiestairroutebetweenLondonandParishaveaflightontheirhands.

TheEurostartrainservicelinkingtheUKandFrenchcapitalsviatheChannelTunneliswinningcustomersinincreasingnumbers.InlateMay,itcarrieditsonemillionthpassenger,havingrunonlyalimitedservicebetweenLondon,ParisandBrusselssinceNovember1994,startingwithtwotrainsadayineachdirectiontoParisandBrussels.By1997,thecompanybelievesthatitwillbecarryingtenmillionpassengersayear,andcontinuetogrowfromthere.

FromJuly,EurostarstepsitsservicetoninetrainseachwaybetweenLondonandParis,andfivebetweenLondonandBrussels.Eachtraincarriesalmost800passengers,210oftheminfirstclass.

Theairlinesestimatethattheywillinitiallylosearound15%-20%oftheirLondon-ParistraffictotherailwaysonceEurostarstartsafullservicelaterthisyear(1995),with15trainsadayeachway.AsimilarservicewillstarttoBrussels.Thedamagewillbelimited,however,theairlinesbelieve,withpassengernumbersreturningtopreviouslevelswithintwotothreeyears.

Intheshortterm,thedamagecausedbythe1millionpeople-levelstravelingbetweenLondonandParisandBrusselsonEurostartrainsmeansthatsomeairservicesarealreadysuffering.Someofthemajorcarrierssaythattheirpassengernumbersaredownbylessthan5%andpointtotheirrivals-ParticularlyAirFrance-ashavingsufferedtheproblems.OntheBrusselsroute,therailwaycompanyhadlesssuccess,andtheairlinesreportanythingfromarounda5%droptonovisibledeclineintraffic.

Theairlines’optimismonreturningtrafficlevelsisbasedonhistoricalprecedent.BritishMidland,forexample,pointstoitsexperienceonHeathrowLeedsBradfordservicewhichsawpassengernumbersfoldby15%whenBritishRailelectrifiedandmodernizedtherailwaylinebetweenLondonandYorkshire.Twoyearslater,travelhadrisenbetweenthetwodestinationstothepointwheretheairlinewascarryingrecordnumbersofpassengers.

1.Britishairlinesconfideinthefactthat__.

A.theyaremorepowerfulthanotherEuropeanairlines.

B.theirtotallosswon’tgobeyondadropof5%passengers.

C.theirtrafficlevelswillreturnin2-3years.

D.travelingbyrailcannevercatchupwithtravelingbyair.

2.Theauthor’sattitudetowardsthedropofpassengersmaybedescribedas__.

A.worried.B.delightedC.puzzled.D.unrivaled.

3.Inthepassage,BritishRail(Para6)ismentionedto__.

A.provideacomparisonwithEurostar.

B.supporttheairlines’optimism.

C.provetheinevitabledropofairpassengers.

D.callforelectrificationandmodernizationoftherailway.

4.Therailway’sBrusselsrouteisbroughtforthtoshowthat__.

A.theEurostartrainserviceisnotdoinggoodbusiness.

B.theairlinescanwellcompetewiththerailway.

C.theEurostartrainserviceonlycausedlittledamage.

D.onlysomeairlines,suchasAirFrance,aresuffering.

5.Thepassageistakenfromthefirstofanessay,fromwhichwemaywellpredictthatinthefollowingparttheauthorisgoingto__.

A.praisetheairlines’clear-mindedness.

B.warntheairlinesofhigh-speedrailservices.

C.proposeareductionofLondon/Parisflights.

D.advisetheairlinestofollowBritishMidlandastheirmodel.

答案:

CABCB

解析:

暂无解析

1、【题目】Part IV Translation

The personal service they provide is so deep-rooted in Japan that they are likely to operate alongside the glittering new showrooms. (Passage Three)

答案:

他们提供的个人服务在日本是如此根深蒂固,而这种服务有可能就在灯光闪烁的新展厅旁进行。

解析:

暂无解析

1、【题目】翻译:

Cultureshockiscausedbytheanxietythatresultsfromlosingallfamiliarsignsandsymbolsofsocialintercourse.(PassageFour)

答案:

文化震撼是由于社会交往过程中失去了所有本来熟悉的标记和符号引起焦虑而产生的。

解析:

暂无解析

1、【题目】If the old maxim that the customer is always right still has meaning, then the airlines that ply the world’s busiest air route between London and Paris have a flight on their hands.

The Eurostar train service linking the UK and French capitals via the Channel Tunnel is winning customers in increasing numbers. In late May, it carried its one millionth passenger, having run only a limited service between London, Paris and Brussels since November 1994, starting with two trains a day in each direction to Paris and Brussels. By 1997, the company believes that it will be carrying ten million passengers a year, and continue to grow from there.

From July, Eurostar steps its service to nine trains each way between London and Paris, and five between London and Brussels. Each train carries almost 800 passengers, 210 of them in first class.

The airlines estimate that they will initially lose around 15%-20% of their London-Paris traffic to the railways once Eurostar starts a full service later this year (1995), with 15 trains a day each way. A similar service will start to Brussels. The damage will be limited, however, the airlines believe, with passenger numbers returning to previous levels within two to three years.

In the short term, the damage caused by the 1 million people-levels traveling between London and Paris and Brussels on Eurostar trains means that some air services are already suffering. Some of the major carriers say that their passenger numbers are down by less than 5% and point to their rivals-Particularly Air France-as having suffered the problems. On the Brussels route, the railway company had less success, and the airlines report anything from around a 5% drop to no visible decline in traffic.

The airlines’ optimism on returning traffic levels is based on historical precedent. British Midland, for example, points to its experience on Heathrow Leeds Bradford service which saw passenger numbers fold by 15% when British Rail electrified and modernized the railway line between London and Yorkshire. Two years later, travel had risen between the two destinations to the point where the airline was carrying record numbers of passengers.

1.British airlines confide in the fact that__.

A.they are more powerful than other European airlines.

B.their total loss won’t go beyond a drop of 5% passengers.

C.their traffic levels will return in 2-3 years.

D.traveling by rail can never catch up with traveling by air.

2.The author’s attitude towards the drop of passengers may be described as__.

A.worried.B.delightedC.puzzled.D.unrivaled.

3.In the passage, British Rail (Para 6) is mentioned to__.

A.provide a comparison with Eurostar.

B.support the airlines’ optimism.

C.prove the inevitable drop of air passengers.

D.call for electrification and modernization of the railway.

4.The railway’s Brussels route is brought forth to show that__.

A.the Eurostar train service is not doing good business.

B.the airlines can well compete with the railway.

C.the Eurostar train service only caused little damage.

D.only some airlines, such as Air France, are suffering.

5.The passage is taken from the first of an essay, from which we may well predict that in the following part the author is going to__.

A.praise the airlines’ clear-mindedness.

B.warn the airlines of high-speed rail services.

C.propose a reduction of London/Paris flights.

D.advise the airlines to follow British Midland as their model.

答案:

CABCB

解析:

暂无解析

1、【题目】PartVWriting

写作指导

这是一篇描写文(Description)。用通俗的话说,描写文就是用文字给人物、地点、景物画象。一篇描写文主要是通过所感受的细节——所见所闻发展而来的。在写人时,不仅仅要用细节描写其外貌,而要注重通过他的言行来表现其人物性格、思想和品德,更要抓住他区别于他人的性格特点,这样就容易给读者留下深刻的印象。短文的第一、二段叙述故事发生的时间、地点,故事发生的原因及故事所涉及的人物。文章的三、四、五段描写的是人物的外貌,穿着及性格特点。通过对人物言行的简单描写来揭示主人翁的助人为乐的高尚精神。短文的最后一段,要用一句话概括作者对主人翁的看法:Agoodguy。文章有描述,有议论,要加叙加议,有血有肉,上下文连贯要紧密,首尾要呼应,人和事要给人们留下深刻印象。

答案:

Sample Writing

The First Impression of My Roommate

It was my first day at the institute. I got into the building where I was going to live, and looked door after door for my name. At last I found it. In the room, there was already a student making his bed. After we said “how do you do?” to each other, he continued his work, paying no more attention to me. I looked around the room and found that it had been thoroughly cleaned. No doubt it was he who had done it.I looked at him. He was thin, short and dark. His hair was like a bundle of straw. His dirty clothes and tired look told me that he had had a long journey. His clothes were made of cheap cloth, and he wore a pair of rubber shoes, which were very unfashionable. He was not a very smart freshmen at all.

The second time he spoke, his accent told me that he was from the south. “Shall I help you to get your luggage from the office?”

I did not refuse since I really needed help. He was quick in movement. He walked out of the room and was soon far ahead of me to the office.

“A good guy,”I said to myself.“I will make friends with him ”,and I hurried and caught up with him.

解析:

暂无解析

1、【题目】翻译:

Culture shock is caused by the anxiety that results from losing all familiar signs and symbols of social intercourse. (Passage Four)

答案:

文化震撼是由于社会交往过程中失去了所有本来熟悉的标记和符号引起焦虑而产生的。

解析:

暂无解析

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