全国专业技术人员职称英语等级考试.pdf

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1、全国专业技术人员职称英语等级考试理工类A级65篇阅读课文之1Bees and colourOn our table in the garden we put a blue card,and all around this blue card we put a number ofdifferent grey cards.These grey cards are of all possible shades of grey and include white andblack.On each card a watch-glass is placed.The watch-glass on the b

2、lue card has some syrup in it;all the others are empty.After a short time bees find the syrup,and they come for it again andagain.Then,after some hours,we take away the watch-glass of syrup which was on the blue cardand put an empty one in its place.Now what do the bees do?They still go straight to

3、the blue card,although there is no syrup there.They do not go to any of the grey cards,in spite of the fact that one of the grey cards is of exactlythe same brightness as the blue card.Thus the bees do not mistake any shade of grey for blue.Inthis way we have proved that they do really see blue as a

4、 colour.We can find out in just the same way what other clours bees can see.It turns out that bees can seevarious colours,but these insects differ from us as regards their colour-sense in two veryinteresting ways.Suppose we train bees to come to a red card,and,having done so,we put the redcard on th

5、e table in the garden among the set of different grey cards,this time we find that the beesmistake red for dark grey or black.They cannot distinguish between them.This means that red isnot a colour at all for bees;for them it is just dark grey or black.That is one strange fact;here is another.A rain

6、bow is red on one edge,violet on the other.Outsidethe violet of the rainbow there is another colour which we cannot see at all.This colour beyondthe violet,invisible to us,is called the ultra-violet.Although it is invisible,we know that theultra-violet is there because it affects a photographic plat

7、e.Now,although we are unable to seeultra-violet light,bees can do so;for them ultra-violet is a colour.Thus bees see a colour whichwe cannot even imagine.This has been found out by training bees to come for syrup to variousparts of a spectrum,or artificial rainbow,thrown by a prism on a table in a d

8、ark room.In such anexperiment the insects can to taught to fly to the ultra-violet,which for us is just darkness.1.What does the experiment with the bees in the first and second paragraphs tell us?A.Bees regard blue as a colour.B.Bees like the blue colour.C.Blue attracts more bees than any other col

9、our.D.Blue is the only colour to attract bees.2.What does the experiment tell us in the third paragraph?A.Bees are attracted only by the red colour.B.Red is too bright a colour for bees.C.Bees do not regard red as a colour.D.Bees like red as well as blue.3.Why did the experimenters create an artific

10、ial rainbow for their experiment?A.To identify how good bees eyesight was.B.To test whether bees could see ultra-violet light as a colour.C.To see whether bees can recognise the 7 visible colours at once.D.To check whether bees prefer some colours in a spectrum.4.What does the fourth paragraph tell

11、us concerning bees and colours?A.Bees can recognise certain invisible colours.B.Bees can recognise ultra-violet that is invisible to humans.C.Bees may be harmed by ultra-violet light.D.Bees work may affect a photographic plate.5.What can we conclude from the passage?A.Bees can see more colours than

12、humans.B.The ability to recognise colours varies from bee to bee.C.Bees are more sensitive to colours than humans.D.Bees recongnise colours,but somewhat differently from humans.acbbd全国专业技术人员职称英语等级考试理工A65-2：Dining customEvery land has its own dining custom,and the United States is no exception.Americ

13、an feel thatthe first rule of being a polite guest is to be on time.If a person is invited to dinner at 6:30,thehostess expects him to be there at 6:30 or not more than a few minutes after.Because she usuallydoes her own cooking,she times the meal so that the coffee and meat will be at their best at

14、 thetime she asks the guest to come if he is late,the food will not be so good,and the hostess will bedisappointed.When the guest cannot come on time,he calls his host or hostess on the telephone,gives the reason,and tells at what time he thinks the can come.As guests continue to arrive,the men in t

15、he group stand when a woman enters and remainstanding until she has found a chair.A man always rises when he is being introduced to a woman,a woman does not rise when she is being introduced either to a men or a woman unless the womanis much older.When the guests sit down at a dinner table,it is cus

16、tomary for the men to help the ladies bypushing their chairs under them.Even an American may be confused by the number of knives,forks,and spoons beside his platewhen he sits down to a formal dinner.The rule is simple however:Use them in the order in whichthey lie,beginning from the outside.Or watch

17、 the hostess and do what she does.The small fork onthe outside on the left is for salad,which is often served with the soup.The spoon on the outside atthe right is for soup.And so on.sometimes there is a separate little knife,called a butter spreader,on a small bread-and-butter plate at the left.As

18、the bread is passed,each guest puts his piece onthe bread-and-butter plate.1.the passage is mainly aboutA.How to accept other peoples invitation to dinner.B.How to behave properly before and at dinner.C.How to be polite to ladies al dinner.D.How to use the right kind of knives and forks.2.In order t

19、o be a polite guest,the first thing one has to do isA.To arrive 30 minutes earlier.B.To phone the hostess before arrivalC.Not to bring too many presents.D.Not to be late for dinner.3.When both a man and a woman are introduced to another woman about their age,who normallyhas to rise?A.Both the man an

20、d the womanB.Only the manC.Only the womanD.Neither of them4.According to the passage,which of the following may need knives,forks and spoons the most?A.a dinner partyB.a picnicC.breakfastD.afternoon tea5.Which of the following statements is incorrect?A.In case of being late,the guest must phone the

21、hostess.B.Follow the hostess in using different sets of knives and forks.C.As soon as a woman guest enters,men can sit down.D.Men should help women to sit down at the dinner table.bdbac全国专业技术人员职称英语等级考试理工类A 级 65篇阅读课文之3The seaWhat do you know about the sea?We know that it looks very pretty when the su

22、n is shining on it.We also know that it can be very rough when there is a strong wind.What other things do weknow about it?The first thing to remember is that the sea is very big.When you look at the map of the world youwill find there is more water than land the sea covers three quarters of the wor

23、ld.The sea is also very deep in some places.It is not deep everywhere.Some parts of the sea are veryshallow.But in some places the depth of the sea is very great.There is one spot,near Japan,wherethe sea is nearly 11 kilometers deep!The highest mountain in the world is about 9 kilometers high.If tha

24、t mountain were put into the sea at that place,there would be 2 kilometers of water above it!What a deep place!If you have swum in the sea,you know that it is salty.You can taste the salt.Rivers,which flowinto the sea,carry salt from the land into the sea.Some parts of the sea are more salty than ot

25、herparts.There is one sea,called the Dead Sea,which is very salty.It is so salty that swimmerscannot sink!Fish cannot live in the Dead Sea!In most parts of the sea,there are plenty of fishes and plants,some live near the top of the sea.Others live deep down.There are also millions of tiny living thi

26、ngs that float in the sea.Thesefloating things are so small that it is hard to see them.Many fish live by eating these.The sea can be very cold.Divers,who go deep down in the sea,know this.On the top the watermay be warm.When the diver goes downwards,the sea becomes colder and colder.Another thing h

27、appens.When the diver goes deeper,the water above presses down on him.Itsqueezes him.Then the diver has to wear clothes made of metal.But he cannot go very deep.Some people who wanted to go very deep used a very strong diving ship!They went down to thedeepest part of the sea in it.They went down to

28、a depth of eleven kilometers!1.When does the sea look beautifulA.When it is calm.B.When the weather is fine.C.When there is a strong wind.D.When there is a storm.2.How much of the earths surface does land cover?A.15%B.25%C.35%D.45%3.Why does the author cite the sea somewhere near Japan?A.To show tha

29、t the sea in some places is very deep.B.To show that the sea in some places is very shallow.C.To show that its depth is 9 kilometers greater than the height of the highest mountain.D.To show that its depth is 11 kilometers greater than the height of the highest mountain.4.Which of the following stat

30、ements about the Dead Sea is not true?A.There are plenty of fishes in it.B.It is a safe place for swimmers.C.It is extremely salty.D.No fish can be found in it.5.Why cant people go very deep in the sea?A.Because the deepest part of the sea is very cold.B.Because the deepest part of the sea is very r

31、ough.C.Because the pressure of water at great depths is unendurable.D.Because the deepest part of the sea is very satly.bbaac全国专业技术人员职称英语等级考试理工类A 级 65篇阅读课文之4Rockets in the skyIf someone asked you,“whal color is the sky?I expect that you would answer,blue.I amafraid that you would be wrong.The sky ha

32、s no color.When we see blue,we are looking at bluesunlight.The sunlight is shining on little bits of dust in the air.We know that there is air all around the world.We could not breathe without air.Airplanes couldnot fly without air.They need air to lift their wings.Airplanes cannot fly very high bec

33、ause as theygo higher the air gets thinner.If we go far enough away from the earth,we find there is no air.What is the sky?The sky is space.In this space there is nothing except the sun,the moon and allthe stars.Scientists have always wanted to know more about the other worlds in the space.They have

34、looked at them through telescopes and in this way they have found out a great deal.The moon is about 384,000 kilometers away from the earth.An airplane cannot fly to the moonbecause the air reaches only 240 kilometers.Then there is no air.But there is something that canfly even when there is no air.

35、This is rocket.I am sure that you are asking.t4How does a rocket fly?”if you want to know,get a balloon andthen blow it up until it is quite big.Do not tie up the neck of the balloon.Let go!The balloon willfly off through the air very quickly.The air inside the balloon tries to get out.It rushes out

36、 throughthe neck if the balloon and this pushes the balloon through the air.It does not need wings like anairplane.This is how a rocket works.It is made of rubber like a balloon,of course.It is made of metal.Themetal must not be heavy but it must be very strong.There is gas inside the rocket which i

37、s madevery hot.When it rushes out of the end of the rocket,the rocket is pushed up into the air.Pockets can fly far out into space.Pockets with men inside them have already reached the moon.Several rockets,without man inside them,have been sent to other worlds much farther away.Oneday rockets may be

38、 able to go anywhere in the space.1.What color is the sky?A.It is the blue.B.It is white.C.It is grey.D.It has no color.2.When an airplane flies too high,A.The air will be too thin to support its wings.B.The air will become thicker.C.The air will exert pressure on it.D.The air will disappear in no t

39、ime.3.Which of the following heavenly bodies is not in the sky?A.The sun.B.The moon.C.The earth.D.The Morning star(Venus).4.A rocket can fly to the moon becauseA.It looks like a balloon.B.It is much lighter than an airplane.C.It doesnt have wings.D.It works like an untied balloon.5.A rocket is pushe

40、d up into the air whenA.Hot gas rushes out of its head.B.It is powered by gas.C.Hot gas rushes out of its bottom.D.Hot gas rushes out of its neck.dacdc国专业技术人员职称英语等级考试理工类A 级 65篇阅读课文之5TransportationFor many years in the desert,camels used to be the only form of transportation.Before the age ofmodern t

41、rains,camel trains used to carry all the goods for trading between Central Africa andEurope.Traders sometimes used to put together camel trains with 10,000 to 15,000 animals.Eachanimal often used to carry as much as 400 pounds and it could travel twenty miles a day.Thisform of transportation used to

42、 be so important that camels were called the“Ships of the desert.”Now modern trains travel across the desert in a very short time.One engine can pull as muchweight as 135,000 camels.In addition,trains use special cars for their load.Refrigerator cars carryfood;boxcars carry heavy goods;stock cars ca

43、rry animals;and tank cars carry oil.Air travel is also a modern means of transportation,but it has changed since the early twentiethcentury.The earliest planes were biplanes,with two sets of wings.The top speed of this plane was60 miles per hour.The pilots used to sit or lie on the wings in the open

44、 air.The plane enginessometimes used to stop in the middle of a trip.It used to be impossible to fly in bad weather.Insnow or in rain,the wings frequently used to become icy.Then the plane might go down.Mechanical improvements during the first world war changed airplanes.Monoplanes took theplace of

45、biplanes.Pilots flew inside of covered cabins.Still,even these planes were small.Onlyrich people used to be able to travel in airplanes.Now modern jets make air travel possible for all people.No place in the world is more than 24hours away by jet.Further improvements have lowered the cost of flying,

46、and they have made airtravel much safer than it used to be.People never used to eat,sleep,or watch movies on airplanes.Now these things are a usual part of air travel.1.According to the passage,why were camels called the“ships of the desertA.They were famous for their strength and patience.B.They we

47、re the only means of transportation in the desert.C.They were animals most suitable for transportation in the desert.D.They could store plenty of water in their stomach while traveling in the desert.2.Which of the following about the advantages of a train is not mentioned in Paragraph 2?A.Trains can

48、 use special cars for different purposes.B.A train can run much faster than a camel.C.A train can carry much more goods than a camel.D.A train can carry goods at much lower costs.3.Biplanes were dangerous in bad weather becauseA.Few pilots could fly them skillfully.B.They did not have strong wings.C

49、.Their engines were not good enough.D.The wings,if covered with ice,would make the flight unsafe.4.According to the passage,the biplane was replaced by the monoplane due toA.its bad wings.B.its small size.C.the need in war time.D.the progress in science.5.Which of the following would best replace th

50、e original title of the passage“Transportation”A.From camel to modern jets.B.JetsA modern means of transportation.C.Camelsan out dated means of transportation.D.The role of science in transportation.bddda全国专业技术人员职称英语等级考试理工类A 级 65篇阅读课文之6Ocean noise pollutionSome scientists say that animals in the oce