CET6模拟题(2)

　

Part II Reading Comprehension(35 minutes)

Directions:There are four reading passages in this part.Each passage is followed by some questions.For each question there are four suggested answers marked A),B),C) and D).You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the centre.

Questions 21 to 26 are based on the following passage:

The accuracy fo scientific observations and calculations is always at the mercy of the scientist's timekeeping methods.For this reason,scientists are interested in devices that given promise of more precise timekeeping.

In their search for precision,scientists have turned to atomic clocks that depend on various vibrating atoms or molecules to supply their "ticking"(滴答滴答地响).This is possible because each kind of atom or molecule has its own characteristic rate of vibration.The nitrogen atom in ammonia,for example,vitrates or "ticks" 24 billion time a second.

One such atomic clock is so accurate that it will probably lose no more than a second in 3000 years.It will be of great importance in fields such as astrological observation and long-range navigation.The heart of this Atomichron is a cesium(铯) atom that vibrates 9.2 billion times a second when heated to the temperature of bioling water.

An atomic colck that operates with an ammonia molecule may be used to check the accuray of the predictions based on Einstein's relativety theories,according to which a clock in motion and a clock at rest should keep time differently.Placed in an orbiting satellite moving at the speed of 18000 miles an hour,the clock could broadcast its time readings to ground station,where they could be compared with a readings on a similar model.Whatever differences develop would be checked against the differe nces predicted.

　

　

The selection say that the accuray of scientific observation depends on

A)methods of measurement.

B)timekeeping methods.

C)basic assumptions.

D)earlier experiments.

　

　

Atomic clocks differ according to

A)function.

B)type of molecule or atom used.

C)rate of vibration.

D)both B and C.

　

　

From the selection,we may assume that temperature changes

A)affect only ammonia molecules.

B)may affect the vibration rate of atoms.

C)affect the speed at which the atoms travel.

D)do not affect atoms in any way.

　

　

Identical atomic clocks may be used to check

A)the effect of outer space on an atomic clock.

B)the actual speed of an orbting satellite.

C)the accuracy of predicitons based on theories of relativity.

D)all of Einstein's theories.

　

　

Implied but not stated:

A)Precise timekeeping is essential in science.

B)Scientists expect to disprove einstein's relativity theories.

C)Atomic clocks will be important in space flight.

D)The rate of vibration of an atom never varies.

　

　

an appropriate title for this selectiom would be

A)A Peacetime Use of the Atom.

B)Atoms and Molecules.

C)The Satellite Timekeepers.

D)The Role of the Clock.

　

Questions 27 to 31 are based on the following passage:

Let children learn to judge their own work.A child learn to talk does not learn by being corrected all time:if corrected too much,he will stop talking.He notices a thousand times a day the difference between the language he uses and the lanhuage those around him use.Bit by bit,he makes the necessary changes to make his language like other people's.In the same way,when children learn to do all the other things they learn to do without being taught--to work,run,climb,whistle,ride a bicycle--compare those performances with those of more skilled people,and slowly make the needed changes.But in school we never give a child a chance to find out his own mistakes for himself,let alone correct them. We do it all for him.We act as if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to.soon he becomes dependent on the teacher. Let him do it himself.Let him work out,with the help of other children if he wants it,what this word says,what answer is to that problem,whether this is a good way of saying or doing this or not.

If it is a matter of right answers,as it may be in mathematics or science,give him the answer book.Let him correct his own papers. Why should we teachers waste time on such routine work?Our job should be to help the child when tells us that he can't find a way to get the right answer.Let's end this nonsense of grades,exams,marks. Let us throw them all out,and let the children learn what all educated persons must some day learn,how to measure their own understanding,how to know what they know or do not know.

Let them get on with this job in the way that seems most sensible to them,with our help as school teachers if they ask for it.The idea that there is a body of knowledge to be learnt at school and used for the rest of one's life is nonsense in a world as complicated and rapidly changing as ours.Anxious parents and teachers say, "But suppose they fail to learn something essential,something they will need to get in the world?don't worry!if it is essential,they will go out into the world and learn it."

　

What does the author think is the best way for children to learn things?

A)by copying what other people do

B)by making mistakes and having them corrected

C)by listening to explanations from skilled people

D)by asking a great many questions

　

　

what does the author think teachers do which they should not do?

A)They give children correct answers.

B)They point out children's mistakes to them.

C)They allow children to make their own work.

D)They encourage children to copy from one another.

　

　

The passage suggests that learning to speak and learning to ride a bicycle are

A)not really important skills.

B)more important than other skills.

C)basically different from learning adult skills.

D)basically the same as learning other skills.

　

　

Exams,grades,and marks should be abolished because children's progress should only be estimated by

A)educated persons.

B)the children themselves.

C)teachers.

D)parents.

　

　

THe author fears that children will grow up inti adults who are

A)too independent of others.

B)too critical fo themselves.

C)unable to think for themselves.

D)unable to use basic skills.

　

Questions 32 to 35 are based on the following passage:

When most people think of Melvil Dewey,they think of the classification system for cataloguing and arranging the bokks and panphlets(小册子) in libraries that he devised in the second half of the nineteenth century.This system classifies books and other publicaitons into ten major categories,each category being further subdivided by number. Dewey was fortunate enough to see the Dewey Decimal System adopted by the libraries throughout the world and by 90 percent of the public and 89 percent of the college libraries in the United States, but his work did not end with this success.Dewey also helped found the American Library Association, established the first library school in America,set up the Lake Placid Club,and worked out his own orthography(拼写法). Dewey considered the spelling system of English a nuisance and a great waste of time,called for the simplification of the language,and insisted that once spelling was freed from complexities and absurdities(不合情理的事情) inherited from the past and made uniform,three years could be saved in a child's education.His zeal was such that he not only used his simplified spelling exclusively,he even would correct the spelling in his mail as he read it through.

　

Dewey's major claim to fame rests on

A)his founding of the American Library Association.

B)his founding of the Lake Placid Club.

C)his library classification system.

D)his simplified spelling system.

　

　

From the passage it can be inferred that the Dewey Decimal System was adopted by

A)most public libraries throughout the world.

B)most college libraries throughout the world.

C)all but 4 percent of college libraries in the United States.

D)a higher proportion of public libraries than college libraries in the United States.

　

　

Dewey's objections to traditional English spelling were based on

A)its simplicity.

B)its uniform nature.

C)its inconsistency.

D)its nuisance value.

　

　

Which of the following can NOT be inferred from the passage?

A)Dewey's correspondents did not always use his writing system.

B)Dewey's writing system was adopted in Americam schools.

C)Dewey always used his writing system once he had invented it.

D)Dewey's activities were not confined to inventing a new writing system.

　

Questions 36 to 40 are based on the following passage:

At cape Churchill in northeastern Manitoba,where the shore of Hudson Bay makes an abrupt 90-degree turn to the west,polar bears congregate(集合)in the autumm,waiting for the ice that is their home. BY November,pack ice has formed beyond the fast ice,and the bears are moving.To be at the very tip of hte Cape in November os to be in the middle of a slow but steadily flowing river of bears,methodically(有条不紊地)picking their way across the jumbled(搞乱了的) ice in a straight-push for their hunting grounds.

The polar bears of Hudson Bay are a distinct population thriving at the southern end of their range.Polar bears live on seals,and to hunt them the bears must have ice to get to where the seal are.Yet in Hudson Bay the ice melts by July and the bears have to comr ashore, there to spend four months eating very little,digging into sand dunes(沙丘) and dirt so they can stay cool in the summer "heat",relaxing into a physiological state like that of black bears in winter dens (兽穴).They are the polar bear population most accessible to humans, and they are not only the best studied but the most easily experienced by amateur naturalists,photographers,and just plain tourists.

　

With what aspect of bears' lives is the passage mainly concerned?

A)Their evolution

B)Their hunting skills

C)Their temperament

D)Their seasonal movements

　

　

When the bears move out onto the ice, they look for their

A)dens.

B)young.

C)food.

D)males.

　

　

Accoding to the passage,during which of the following periods of time

A)January through March

B)July through October

C)September through December

D)November through July

　

　

Where in the passage does the author describe the bears' activities after the ice melts?

A)1st sentence of 1st para.

B)2nd-3rd sentences of 1st para.

C)1st-2nd sentences of 2nd para.

D)3rd-4th sentences of 2nd para.

　

　

It can be inferred from the passage that the polar bear population of Hudson Bay

A)is one of several polar bear populations.

B)is unfriendly toward humans.

C)consumes food voraciously(贪婪地)during the whole year.

D)is an endangered species.

　

Part III Vocabulary and Structure(20 minutes)

Direction:There are 30 incomplete sentences in this part.For each sentence there are four choices marked A),B),C) and D).Choose the ONE answer that best completes the sentence.Then mark the corresponding letter on the Answer Sheet with a single line through the center.

If no one asked any questions,I _____ everybody understands.

A)deduce

B)presume

C)pretend

D)presuppose

　

　

The wheels stuck in the _____.

A)clay

B)mud

C)earth

D)soil

　

　

He promised to put _____ a word for me.

A)out

B)forward

C)down

D)in

　

　

Hot metal _____ as it grows cooler.

A)reduces

B)condenses

C)contracts

D)compresses

　

　

Whenever anything _____ happens,a crowd of people is certain to gather.

A)famous

B)noted

C)sensational

D)emotional

　

　

It will take months for his frectured leg to _____ .

A)heal

B)recover

C)cure

D)recuperate

　

　

A teacher _____ knowledge.

A)teaches

B)lectures

C)educates

D)imparts

　

　

Water is a good _____ for transmitting sound.

A)medium

B)media

C)median

D)mediate

　

　

When the nurse took his temperature,it was two degrees above _____ .

A)average

B)ordinary

C)regular

D)normal

　

　

The sergeant's orders were perfectly _____ .

A)executed

B)exercised

C)developed

D)applied

　

　

We were carried _____ by their wonderful performance.

A)out

B)to

C)through

D)away

　

　

The speaker mentioned his latest books _____ passing.

A)from

B)on

C)into

D)in

　

　

Even traditional dress is mostly made from _____ fabrics.

A)available

B)artificial

C)internal

D)partial

　

　

NO one knows _____ how people first learned to preserve food.

A)correctly

B)rightly

C)for sure

D)right

　

　

To avoid an oil shortage more machines must _____ solar energy.

A)accelerate

B)generate

C)operate

D)utilize

　

　

It's an objective law independent _____ man's will.

A)on

B)of

C)from

D)to

　

　

The population in HongKong is _____ Chinese.

A)popularly

B)commonly

C)predominantly

D)regularly

　

　

He suddenly became wealthy,which changed his whole _____ of life.

A)procedure

B)mode

C)survival

D)substance

　

　

I'm sure _____ says so will make a big mistake.

A)who

B)anybody

C)everyone

D)whoever

　

　

_____ iron has relatively few economical uses.

A)Chemical pure

B)Chemically pure

C)Pure chemical

D)Purely chemical

　

　

Darkness _____,the young people lingered on merrymaking.

A)sets in

B)setting in

C)set in

D)had set in

　

　

_____ is often the case with a new idea,much preliminary activity and optimistic discussion produce no concrete proposals.

A)That

B)It

C)Which

D)As

　

　

There is no rule _____ has some exceptions.

A)that

B)but

C)which

D)what

　

　

I have no doubt _____ he will overcome all his difficulties.

A)whether

B)if

C)that

D)what

　

　

The brilliance of his satires was _____ make even his victims laugh.

A)so as to

B)such as to

C)so that

D)such that

　

More than one person _____ been infected with the disease.

A)have

B)having

C)has

D)to have

　

　

"I'm sure dirty, _____ ?"

A)am I

B)isn't I

C)aren't I

D)am not I

　

　

They criticized him _____ he should make the same mistake again.

A)unless

B)so that

C)lest

D)in case of

　

　

You won't be able to find the job _____ you start right now.

A)lest

B)so that

C)unless

D)that

　

　

I walked 8 miles today,I never guessed that I could walk _____ far.

A)that

B)much

C)such

D)as

　

Part IV Erroe Correction(15 minutes)[Answer]

Directions:This consists of a short passage.In this passage,there are altogether 10 mistakes,one in each numbered line.You may have to add a word,cross out a word,or change a word.Mark out the mistakes and put the corrections in the blanks provided.If you cross out a word,put a slash (/) in the blank.

　

The first two stages in the development of civilized

man was probably the invention of primitive weapons and 71.__________

the discovery of fire,although anyone knows exactly when 72.__________

he acquired the use of later.

the origin of language is also obscure.No doubt it be-

gan very gradually.Animals have a few cries that serve for 73.__________

signals, but even the highest apes(猿) have not found able 74.__________

to pronounce words,even with the most intensive professio-

nal instruction.The superior brain of man is apparently a

necessity for the mastering of speech.When man became suf-

ficiently intelligent,we must suppose that they gradually 75.__________

increased a number of cried for different purposes.It was 76.__________

a great day when he discovered that speech could be used

for narrative.There are those who think that in this res-

pect the picture language preceded oral language. 77.__________

A man could draw a picture on the wall of cave to show

to which direction he had gone,or what prey he hoped to 78.__________

catch.Probably picture language and oral language developed

side by side.I am inclined to think that language has been

the most important single factor in the development of man.

Two important stages came no so long ago the dawn of 79.__________

written history.The first was the domestication of animals;

the second was agriculture.Agriculture was a step in human

progress to which subsequently there was nothing comparative 80.__________

until our own machine age.

part V Writing (30 minutes)[Sample]

Directions:For this part,you are allowed 30 minutes to write a composition of no less than 120 words,based on the following title:Science:Good or Evil.

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