Passage2
Questions6to10arebasedonthefollowingpassage:
Thefoodweeatseemstohaveprofoundeffectsonourhealth.Althoughsciencehasmadeenormousstepsinmakingfoodmorefittoeat,ithas,atthesametime,mademanyfoodsunfittoeat.Someresearchhasshowntat40percentofcancerisrelatedtothedietaswell,especiallycancerofthecolon.Differentculturesatemorepronetogetcertainillnessesbecauseofthefoodthatischaracteristicinthesecultures.Thatfoodisrelatedtoillnessisnotanewdiscovery.In1945,governmentresearchersrealizedthatnitratesandnitrites,commonlyusedtopreservecolorinmeats,andotherfoodadditives,causedcancer.Yetthesecarcinogenicadditivesremaininourfood,anditbecomesmoredifficultallthetimetoknowwhichthingsonthepackaginglabelsofprocessedfoodarehelpfulorharmful.Theadditivesthatweeatarenotallsodirect.Farmersoftengivepenicillintobeefandpoultry,andbecauseofthis,penicillinhasbeenfoundinthemilkoftreatedcows.Sometimessimilardrugsareadministeredtoanimalsnotformedicinalpurposes,butforfinancialreasons.Thefarmersaresimplytryingtofattentheanimalsinordertoobtainahigherpriceonthemarket.AlthoughtheFoodandDrugAdministration(FDA)hastriedrepeatedlytocontroltheseprocedures,thepracticescontinue.
6.Howhassciencedoneadisservicetomankind?
A.Becauseofscience,mostofthefoodsweeattodayarecontaminated.
B.Ithascausedalackofinformationconcerningthevalueoffood.
C.Asaresultofscientificintervention,somepotentiallyharmfulsubstanceshasbeenaddedtoourfood.
D.Thescientistshavepreservedthecolorofmeats,butnotofvegetables.
7.Whatarenitratesusedfor?
A.Theypreservesflavorinpackagedfoods.
B.Theypreservethecolorofmeats.
C.Theyaretheobjectsofresearch.
D.Theycausetheanimalstobecomefatter.
8.TheFDAhastriedrepeatedlytocontrol.
A.theattempttofattentheanimals
B.theattempttocuresickanimals
C.theusingofdrugstoanimals
D.theusingofadditivestopreservethedoloroffood
9.Theword“carcinogenic”meansmostnearlythesameas.
A.trouble-makingB.color-retaining
C.money-savingD.cancer-causing
10.WhichofthefollowingstatementsisNOTtrue?
A.Drugsarealwaysgiventoanimalsformedicalreasons.
B.Someoftheadditivesinourfoodareaddedtothefooditselfandsomearegiventothelivinganimals.
C.Researchershaveknownaboutthepotentialhazardsofthefoodadditivesforoverthirty-fiveyears.
D.Foodmaycausefortypercentofcancerintheworld.
产程中胎心监护，下列哪项是错误的
Onceitwaspossibletodefinemaleandfemaleroleseasilybythedivisionoflabor.Menworkedoutsidethehomeandearnedtheincometosupporttheirfamilies,whilewomencookedthemealsandtookcareofthehomeandthechildren.Theseroleswerefirmlyfixedformostpeople,andtherewasnotmuchopportunityforwomentoexchangetheirroles.Butbythemiddleofthiscentury,men’sandwomen’sroleswerebecominglessfirmlyfixed.
Inthe1950s,economicandsocialsuccesswasthegoalofthetypicalAmerican.Butinthe1960sanewforcedevelopedcalledthecounterculture.Thepeopleinvolvedinthismovementdidnotvaluethemiddle-classAmericangoals.Thecounterculturepresentedmenandwomenwithnewrolechoices.Takingmoreinterestinchildcare,menbegantosharechild-raisingtaskswiththeirwives.Infact,someyoungmenandwomenmovedtocommunalhomesorfarmswheretheeconomicandchildcareresponsibilitiesweresharedequallybybothsexes.Inaddition,manyAmericansdidnotvaluethetraditionalmaleroleofsoldier.SomeyoungmenrefusedtobedraftedassoldierstofightinthewarinVietnam.
Intermsofnumbers,thecounterculturewasnotaverylargegroupofpeople.ButitsinfluencespreadtomanypartsofAmericansociety.Workingmenofallclassesbegantochangetheireconomicandsocialpatterns.Industrialworkersandbusinessexecutivesalikecutdownon“overtime”worksothattheycouldspendmoreleisuretimewiththeirfamilies.Somedoctors,lawyers,andteachersturnedawayfromhighpayingsituationstopracticetheirprofessionsinpoorerneighborhoods.
Inthe1970s,thefeministmovement,orwomen’sliberation,producedadditionaleconomicandsocialchanges.Womenofallagesandatalllevelsofsocietywereenteringtheworkforceingreaternumbers.Mostofthemstilltooktraditionalwomen’sjobsaspublicschoolteaching,nursing,andsecretarialwork.Butsomewomenbegantoentertraditionallymaleoccupations:policework,banking,dentistry,andconstructionwork.Womenwereaskingforequalwork,andequalopportunitiesforpromotion.
Todaytheexpertsgenerallyagreethatimportantchangesaretakingplaceintherolesofmenandwomen.Naturally,therearedifficultiesinadjustingtothesetransformations.
1.WhichofthefollowingbestexpressthemainideaofParagraph1?
A.Womenusuallyworkedoutsidethehomeforwages.
B.Menandwomen’sroleswereeasilyexchangedinthepast.
C.Men’srolesathomeweremorefirmlyfixedthanwomen’s.
D.Menandwomen’sroleswereusuallyquiteseparatedinthepast.
2.WhichsentencebestexpressesthemainideaofParagraph2?
A.Thefirstsentence.
B.Thesecondandthethirdsentences.
C.Thefourthsentence.
D.Thelastsentence.
3.Inthepassagetheauthorproposesthatthecounterculture___.
A.destroyedtheUnitedStates.
B.transformedsomeAmericanvalues.
C.wasnotimportantintheUnitedStates.
D.broughtpeoplemoreleisuretimewiththeirfamilies.
4.Itcouldbeinferredfromthepassagethat___.
A.menandwomenwillneversharethesamegoals.
B.somemenwillbewillingtoexchangetheirtraditionalmaleroles.
C.mostmenwillbehappytosharesomeofthehouseholdresponsibilitieswiththeirwives.
D.moreAmericanhouseholdsareheadedbywomenthaneverbefore.
5.Thebesttitleforthepassagemaybe___.
A.ResultsofFeministMovements
B.NewinfluenceinAmericanLife
C.CountercultureandItsconsequence
D.TraditionalDivisionofMaleandFemaleRoles.
Milk,butter,andcheeseare____herefromthefarms.