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46、 （　）Those who want more economic growthBelieve that continue‘d economic growth
A．is essential to the well-being of society as a whole
B．can provide the solution to many of our social problems today
C．call protect our environment fromBeing pollutedBy industry
D．can provide US with more natural resources for industrialization


47、 （　）The passage is mainly about__________．
A．the advantages andDisadvantages of economic growth
B．the presentDebate on economic growth
C．the importance of theDebate on economic growth
D．the contradictionBetween economists and theBusiness community



48、根据下列材料回答48-67 题。
　　When IBegan reading Catch-22，I thought it was a farcical satire on life in the UnitedStates Army Air Force．Later IBelieved that Mr．Heller's target was modem war and all those whoare responsible for waging it．Still later it seemed that he was attacking social organization andanyone whoDerives power from it．ButBy the end of theBook it hadBecome plain to me that itis—no other phrase willDo—tlle human condition itself which is the object of Mr．Heller，s out．raged fhry andDisgust．
　　A reviewer must always keep an anxious eye on the state of his currecy．If he announcestoo many masterpieces he risks inflation(though it is sometimes forgottenBy some of US that thecowardice of perpetual crabbing(挑剔)receives its own kind of punishment)．ItDoes not seemmany weeks since l was proclaiming that Malcolm Lowry’s Under the Volcano is one of the greatEnglish novels of the century；and not longBefore that l was urging that attention shouldBe paidto the magnificent and neglected talent of William Gerhardi．
　　But at th e ri sk of inflation I cannot help writing that Catch-22 is the greatest satirical workin English since Erewhon．For the fact is that all my successive interpretations of thisBook nowseem to haveBeen accurate，even if the earlier ones were also incomplete．TheBook has an im．mense andDevastating(讽刺的)theme，but this theme is illustrated，as it shouldBe，bv meaJlsof an observed reality．
　　I am not suggesting that Catch—22 is a realistic account of life in the war—time Air Forceof America or any other country．The method of satire is to inflate(放大)reality so that all its partially concealedBlemishes(缺点)turn into monstrous and apparentDeformations．Theefiect of good satire is to make us laugh with horror．And this means that social and personal e-vils which areBeing satirized must haveBeen there，and mustBe feltBy the reader toBe thereeyen while he is laughing at the results of the satirist's inflating imagination．
（　）The passage seems toBe from________.
A．a review of a film
B．aBook about the U．S．Air Force
C．an essay on satire
D．a review of aBook


49、 （　）The writer suggests that Catch-22 is________.．
A．a very great English novel
B．an accurate portrayal of life in wartime
C．an excellent piece of satire
D．the work of a neglected author


50、 （　）The underlined part“keep all anxious eye on the state of his currency”means________.
A．take care not toBe over—critical in his writing
B．watch carefully to see that nobody else takes his job
C．be careful tO ensure that his comments retain their value
D．be sure that his salary keeps pace with inflation


51、 （　）WhyDoes the writer say“at the risk of inflation”?
A．Because he feels that he mightBe exaggerating
B．Because he has recently praised more works than usual
C．Because lie finds it hard toBe objective
D．Because he feels he may not praise the work sufficiently



52、根据下列材料回答52-71 题。
　　The idea of a fishBeing able to generate electricity strong enough to light lampBulbs—oreven to mn a small electric motoris almost unbelievable，but several kinds of fish are able todo this．Even more strangely。this curious power hasBeen acquired inDifferent waysBy fishBe。longing to veryDifferent families．
　　Perhaps theBest known are the electric rays，or torpedoes(电鱼)，of which several kindslive in warm seas,They posses on each side of the head，behind the eyes，a large organ consis—ting of a number of hexagonal shaped cells rather like a honeycomb．The cells are filled with ajeUy—like substance，and contain a series of flat electric plates．One side，the negative side，ofeach plate．is supplied with very fine nerves，connected with a main nerve coming from a specialpart of theBrain．Current passes from the upper，positive side of the organDownwards to thenegative，lower side．Generally it is necessary to touch the fish in two places，completing the cir-cuit，in order to receive a shock．
　　The strength of this shockDepends on the size of the fish，but newlyBorn ones only about5 centimeters across canBe made to light theBulb of a pocket flashlight for a few moments， while a fully grown torpedo gives a shock capable of knocking a manDown，and，if suitablewires are connected，will operate a small electric motor for several minutes．
　　Another famous example is the electriceel．This fish gives an even more poweIful shock．The system i8Different from that of the torped。in that the electric plates run longitudinally(纵向)and ale supplied with nerves from the spinal(脊骨)cord．Consequefitly，the current passesalong the fish from head to tail．The electric or gans of these fish are really altered muscles andlike all muscles are apt(1ikely)to tire，so they are not able to produce electricity for very long．The power of producing electricity may serve these flshBom forDefence and attack．
（　）It canBe seen from the passage that__________．
A．the torpedo’s electric ceils have a shape with six sides
B．some fish can produce enough electricity toDrive a number of electric motors
C．the current travels in an upwardDirection from the positive side to negative sidein torpedo’s electric cells
D．the capacity to generate electricity is theDistinctive acteristic of the fish


53、 （　）Usually you will not get a shockBy touching the electric ray in one place onlyBe．cause__________．
A．a torped0’s electric cells contain more than one electricDlates
B．to complete the circuit，you have to touch the fish in twoDlaces
C．the current in one place is not strong enough to give a shock
D．the fish’s electric cells are filled with jelly-like substance


54、 （　）The main idea of the third paragraph is that．
A．the mass of the fishDecides the intensity of electric power it generates
B．the strength of shock givenBy a young electric ray can only light theBulb of apocket flashlight
C．to make full use of the energy producedBy electric fish，suitable wires shouldBeavailable
D．a mature torpedo is capable of producing enough electricity to knockDown a man


55、 （　）The reason why the electric eel is able to give more powed'ul shock is that．
A．compared with those in the torped0，the working system of electric plates in theeel is moreDirect and efficient
B．compared with other electric fish，the eel possesses much more electricDlates
C．the working system of the electric plates in the eel is far inferior to those in thetorpedo
D．the working system of the electric plates in the eel is the most effective