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四、Reading Comprehension(60 points)
36、回答36-55题：
　　A new kind of radar has been developed for spaceship travelers．A working laboratory mod-el of a new system of radar that makes useof a beam of light is said to be ten thousand timesmore accurate than the bestcomparable system of radar that used microwaves．
　　The model has shown that this radar system，known as laser—dopplerradar，can measurewith absolute precision speeds varyingfrom spaceship orbital injection(进入)velocities(速度)of five miles per second down to virtual stops--speeds of less thanone ten thousandth ofall inch per second．According tothe scientists who are developing this system，such finemeas-ures of velocity are of prime importance in space missions．In a rendezvous(对接)betweentwo spaceships，or in a landing approach by a vehicle onto an orbiting space station，a bumpcould rip open a ship’S skin，or anudge could knock the station out of its orbit．
　　The light-beam radar，which operates at afrequency of trillions(百万兆)of cycles persecond，could easily detect and measure the movement of a vehicle edging upto a satellitespace station．A control system using SOprecise a signal as this would allow a huge vehicle todock at a space stationas lighfly as a feather．
Laser—doppler radar_______．
A．makes use of microwaves
B．measures the movements ofa spaceship by means of light beam
C．makes use of sound waves
D．Both A and B


37、Laser-doppler radar is especiallyvaluable in space missions because__________．
A．it can measure themovement of a spaceship less accurately than a microwave radar
B．it is a new system ofradar
C．it provides precisemeasures of the velocity of space vehicles
D．it is onethousand times more precise than microwave radar


38、 Whicn of the following statements is nottrue according to the passage__________．
A．inaccuracies inmeasurement could cause accidents in space missions
B．the speeds of spacevehicles will vary
C．accuracy in speedmeasurement is essential to spaceships
D．a bump could affect thepreciseness of the laser—doppler radar


39、 Implied but not stated is that__________．
A．laser—doppler radar ismore accurate than microwave radar
B．microwave radar operatesat a higher frequency than laser—doppler radar
C．the light—beam radar canmeasure only slow speeds with accuracy
D．microwave radar may notensure absolute precision in measuring varying speeds

40、回答40-59题：
　　It seems that beauty and women are twins．You are joking?N0，I am not．Observe foryourself．Ads on fashion flood TV screens，radioprograms，magazines，newspapers，and thestreets．　　Whether they have realized ornot，women are besieged(包围)by asea of fashion．They are taught to think that withoutbeautiful clothes they will grow old and lose their charm．So who dares to neglect dressing up at the cost of their appearanceand youth?
　　But I donot agree with the opinion that women have to show their beauty throughtheirlooks．Therichness of their mind proves to be more beautiful and attractive than theirlooks．Awoman who has experienced many troubles and maybe called“aunt”0r“granny”call still main．tain herbeauty if she has such excellent qualities as knowledge．Ability，a kind heart，greatcourage and concern for others．
　　In addition，old and young，beautifuland uglyare relative concepts．People who keep ayoungmind will never feel old．Curious about new things andeager to learn more，they keepup with the fide．Plainly dressed women may have a type of beauty，which is pure and real．Reading and learningis the best way to keep one youthful．Good books arefertile soilwhich carl feed the floret of one’s heart and looks．
Why does the author say that beauty and womenare twins?
A．Women try to maintaintheir beauty by dressing up．
B．Women like to show offtheir beauty．
C．Women are born to bebeauties
D．Women are proud of theirbeauty.


41、 According to the author，inorder to stay young and attractive，women should
A．foUow the fashion
B．dress up in beautifulclothes
C．do more exercises
D．enrich their mind


42、 Which of the following is NOT true according tothe passage?
A．However old she is，a women with some excellent qualities can still maintain her beauty．
B．As a women grows old，her beauty will gradually disappear．
C．Even a plainly dressedwoman may have pure and real beauty.
D．A women with a young mindnever feels old．


43、 The author believes that_______.
A．women have to show theirbeauty through their looks
B．beautiful clothes can makewomen more attractive
C．women should lay moreemphasis on their owrl qualities
D．women are more curiousabout new things than men

44、回答44-63题：
　　Oceanography has been defined as “Theapplication of all sciences to the study of the sea”．
　　Beforethe nineteenth century，scientists with an interest in the sea were few and far between．Certainly Newton considered some theoretical aspects of it in hiswritings，but he was reluctant(不愿意)to go to sea to further his work．
　　For most people the sea was remote，and with the exception ofearly intercontinentaltravellers or others who earned a living from the sea，there was little reason to ask many ques—tions about it．1et alone to ask what lay beneath the surface．The first time that the question What is at the bottom of theoceans? had to be answered with any commercial consequence was when the layingof a telegraph cable from Europe to America wag proposed. The engineershad toknow the depth profile(起伏形状)of the route to estimatethe length of cable that hadto be manufactured．
　　It was to Maury of the U．S．Navythat the Atlantic Telegraph Company turned，in 1853forinfonnation on this matter．In the 1840s，Maury had been responsible for encouraging voyagesduring whichsoundings were taken to investigate the depths of the North Atlantic andPacificoceans．Later．some of hisfindings aroused much popular interest in his book The Physical Ge—ography ofthe Sea．
　　The cable was laid.but not until 1866 wasthe connection made permanent and reliable .At tlle eady attempts，the cable failed and whenit was taken out for repaim it was found to be covered in living growths，a fact which defied contemporary scientific opinion that there wasnolife in the deeper parts of the sea．
　　Within a few years oceanography was under way．In 1872 Thomson led ascientific expedition(考察)，whichlasted for four years and brought home thousands of samples from the sea.Theirclassification and analysis occupied scientists for years and led to afive’volume report，the last volume being published in1895．
It Was_________that asked Maury for helpin oceanographic studies．
A．those who earned a livingfrom the sea
B．some earlyintercontinental traveners
C．the American Navy
D．the company which proposedto lay an undersea cable


45、 The passage implies that the telegraphcable was built mainly________.
A．for investigating thedepths of the oceans
B．for military purposes
C．for businessconsiderations
D．for oceanographic studies