黄金29篇真题经典难句收集bysaavedro

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1、黄金29篇真题经典难句收集1.Onlythelastofthesewassuitedatalltothecontinuousoperatingofmachines,andalthoughwaterpoweraboundedinLancashireandScotlandandrangrainmillsaswellastextilemills,ithadonegreatdisadvantage：Streamsflowedwherenatureintendedthemtoandwater-drivenfactorieshadtobeloc

2、atedontheirbankswhetherornotthelocationwasdesirableforotherreasons.2.Earlyinthecentury,apumphadcomeintouseinwhichexpandingsteamraisedapiston(活塞)inacylinder(汽缸)，andatmosphericpressurebroughtitdownagainwhenthesteamcondensedinsidethecylindertoformavacuum．3.Thefinalstepcam

3、ewhensteamwasintroducedintothecylindertodrivethepistonbackwardaswellasforwardtherebyincreasingthespeedoftheengineandcuttingitsfuelconsumption.4.Coalgasrivaledsmokyoillampsandflickeringcandles,andearlyinthenewcentury,well—to—doLondonersgrowaccustomedtogaslightshousesand

4、evenstreets.5.Ironmanufacturerswhichhadstarvedforfuelwhiledependingoncharcoalalsobenefitedfromever-increasingsuppliesofcoal;blastfurnaceswithsteam-poweredbellowsturnedoutmoreironandsteelforthenewmachinery．6.Atthesametime,operatorsofthefirstprintingpressesrunbysteamrath

5、erthanbyhandfounditpossibletoproduceathousandpagesinanhourratherthanthirty．7.Insomeindustrialregions,heavilyladenwagons，withflangedwheels，werebeinghauledbyhorsesalongmetalrails;andthestationarysteamenginewaspuffinginthefactoryandmine.8.AnothergenerationpassedbeforeInve

6、ntorssucceededincombiningtheseingredientsbyputtingtheengineonwheelsandthewheelsontherails,soastoprovideamachinetotaketheplaceofthehorse.9.WhenhegrewolderWilliamSmithtaughthimselfsurveyingfrombooksheboughtwithhissmallsavingsandattheageofeighteenhewasapprenticedtoasurvey

7、orofthelocalparish.10.Thecompaniesbuildingthecanalstotransportcoalneededsurveyorstohelpthemfindthecoaldepositsworthminingaswellastodeterminethebestcoursesforthecanals.11.HelaterworkedonsimilarjobsacrossthelengthandbreadthofEnglandallthewhilestudyingthenewlyrevealedstra

8、taandcollectingallthefossilshecouldfind．12.Butasmoreandmoreaccumulationsofstratawerecatalogedinmoreandmoreplaces,itbe