Part IV Translation
Yet these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. (Passage Two)
可是这些致癌物质依然存在于我们的食物之中，与此同时，要想知道加工食品标签上的哪些成分对健康有利，哪些成分对健康不利，变得更加苦难了。
暂无解析
Ifthedrugproveseffectiveinhumantrials,itcouldenhancetheeffectivenessofexistingAIDSdrugsin________.
Letchildrenlearntojudgetheirownwork.Achildlearningtotalkdoesnotlearnbybeingcorrectedallthetime;ifcorrectedtoomuch,hewillstoptalking.Henoticesathousandtimesadaythedifferencebetweenthelanguagesheusesandthelanguagethosearoundhimuse.Bitbybit,hemakesthenecessarychangestomakehislanguagelikeotherpeople.Inthesameway,whenchildrenlearntodoalltheotherthingstheylearntodowithoutbeingtaught-towalk,run,climb,whistle,rideabicycle-comparethoseperformanceswiththoseofmoreskilledpeople,andslowlymaketheneededchanges.Butinschoolwenevergiveachildachancetofindouthisownmistakesforhimself,letalonecorrectthem.Wedoitallforhim.Weactasifwethoughtthathewouldnevernoticeamistakeunlessitwaspointedouttohim,orcorrectitunlesshewasmadeto.Soonhebecomesdependentontheteacher.Lethimdoithimself.Lethimworkout,withthehelpofotherchildrenifhewantsit,whatthiswordsays,whatansweristothatproblem,whetherthisisagoodwayofsayingordoingthisornot.
Ifitisamatterofrightanswers,asitmaybeinmathematicsorscience,givehimtheanswerbook.Lethimcorrecthisownpapers.Whyshouldweteacherswastetimeonsuchroutinework?Ourjobshouldbetohelpthechildwhenhetellsusthathecan’tfindthewaytogettherightanswer.Let’sendthisnonsenseofgrades,exams,marks,Letusthrowthemallout,andletthechildrenlearnwhatalleducatedpersonsmustsomedaylearn,howtomeasuretheirownunderstanding,howtoknowwhattheyknowordonotknow.
Letthemgetonwiththisjobinthewaythatseemssensibletothem.Withourhelpasschoolteachersiftheyaskforit.Theideathatthereisabodyofknowledgetobelearntatschoolandusedfortherestofone’slifeisnonsenseinaworldascomplicatedandrapidlychangingasours.Anxiousparentsandteacherssay,“Butsupposetheyfailtolearnsomethingessentialtheywillneedtogetintheworld?”Don’tworry!Ifitisessential,theywillgooutintotheworldandlearnit.
1.Whatdoestheauthorthinkisthebestwayforchildrentolearnthings?
A.bycopyingwhatotherpeopledo.
B.bymakingmistakesandhavingthemcorrected.
C.bylisteningtoexplanationsfromskilledpeople.
D.byaskingagreatmanyquestions.
2.Whatdoestheauthorthinkteachersdowhichtheyshouldnotdo?
A.Theygivechildrencorrectanswers.
B.Theypointoutchildren’smistakestothem.
C.Theyallowchildrentomarktheirownwork.
D.Theyencouragechildrentomarktocopyfromoneanother.
3.Thepassagesuggeststhatlearningtospeakandlearningtorideabicycleare___.
A.notreallyimportantskills.
B.moreimportantthanotherskills.
C.basicallydifferentfromlearningadultskills.
D.basicallythesameaslearningotherskills.
4.Exams,grades,andmarksshouldbeabolishedbecausechildren’sprogressshouldonlybeestimatedby___.
A.educatedpersons.
B.thechildrenthemselves.
C.teachers.
D.parents.
5.Theauthorfearsthatchildrenwillgrowupintoadultswhilebeing___.
A.tooindependentofothers.
B.toocriticalofthemselves.
C.incapabletothinkforthemselves.
D.incapabletousebasicskills.
PartIVTranslation
Bymeasuringandchartingtheresultsofmanyexperiments,theyaretryingtofindoutwhatmakesdifferentpeopleperceivetotallydifferentthingsaboutthesamescene.(PassageOne)
Passage2
Questions6to10arebasedonthefollowingpassage:
Whenaluminumwasfirstproducedaboutahundredandfiftyyearsago,itwassodifficulttoseparateformtheoresinwhichitwasfoundthatitspricewashigherthanthatofgold.Thepriceremainedhighuntilanewprocesswasdiscoveredforrefiningthemetalwiththeaidofelectricityapproximatelythreequartersofacenturylater.Thenewmethodwassomuchcheaperthataluminumbecausepracticalformanypurposes,oneofwhichwasmakingpotsandpans.
Aluminumislightweight,rustproofandeasilyshapedintodifferentforms.Bymixingitwithothermetals,scientistshavebeenabletoproduceavarietyofalloys,someofwhichhavethestrengthofsteelbutweighonlyonethirdasmuch.
Today,theusesofaluminumareinnumerable.Perhapsitsmostimportantuseisintransportation.Aluminumisfoundintheengineofautomobiles,inthehullsofboats.Itisalsousedinmanypartsofairplanes.Infact,thehuge“airbus”planeswouldprobablyneverhavebeenproducedifaluminumdidnotexist.Bymakingvehicleslighterinweightaluminumhasgreatlyreducedtheamountoffuelneededtomovethem,Aluminumisalsobeingusedextensivelyinthebuildingindustryinsomecountries.
Sincealuminumissuchaversatile(多用的)metal,itisfortunatethatbauxite(铝土矿),whichisoneofitschiefsources,isalsooneoftheearth’smostplentifulsubstances.Asthesourceofaluminumisalmostinexhaustible,wecanexpectthatmoreandmoreuseswillbefoundforthisversatilemetal.
6.Thepriceofaluminumwassharplyreducedwhenpeoplediscoveredanewrefiningprocesswiththeaidof.
A.windB.solarenergyC.hydraulicpowerD.electricity
7.Aluminumis.
A.lightweight,rustproofbutnoteasilyshapedintodifferentforms
B.heavyweight,rustproofandeasilyshapedintodifferentforms
C.lightweight,rustproofandeasilyshapedintodifferentforms
D.lightweightandeasilyshapedintodifferentformsbutitiseasytobecomerusty
8.WhichofthefollowingisNOTtrue?
A.Aluminumiswidelyusedintransportation.
B.Aluminumisalsousedinmanypartsofairplanes.
C.Aluminumisbeingusedextensivelyinthebuildingindustry.
D.Aluminumisnotusedinitspureform.
9.Aluminumisfoundonearthmostlyintheformof.
A.puremetalB.bauxiteC.goldD.liquid
10.Whatisthepassagetalkingabout?
A.Thefeaturesofaluminumanditsfunctions.B.Theprocessofaluminum.
C.Thediscoveryofaluminum.D.Thepromisingfutureofaluminum.
Advertisementsareaimedatpeoplesufferingfrommildcomplaintsbecause________.