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The book provides a concise analysis of the country's history.（）
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Informationgiventoemployeesmustbe______clearandine
convenient
continuous
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concise
3.00分Thebookprovidesvalueinformationforus．
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FinancingCollegeTrainingHighschoolstudentswhoaftergraduationwouldliketocontinuetheireducationarefrequentlyfacedwithmanyproblemsinfinancingcollegetraining.Freeeducationisnotsowide-spreadatthecollegelevel51attheelementaryand52schoollevels.Thereisusuallyachargefor53.Inadditionformoststudentsgoingtocollegemeanslivingawayfromhomeanexpensivematter.54thencanbedonebyastudentwhofindsthathemusthelptofinancehimselfifheisto55hiseducationbeyondhighschoolThereareseveral56Scholarshipsaresometimesavailable.Theseareusually57partlyonthebasisofhighgrades.Thereforetheday-todayworkinhighschoolmaybeveryimportantfordeterminingone’s58ofhelpfromthissource.Another59ofhelpisthecollegeloanfundwhichisestablishedforthe60ofprovidingloansto61students.Athirdplanisthatofworkingone’swaythroughschool.Workmayinvolve62apart-timejoboutsidethecollege.Sometimesitmeans63professorsinlaboratoryworklibraryworkoroffice64.Sometimesitmeansperformingsome65whichthestudentbodyrequiressuchashelpinginthepreparationandservingofmealsworkingincollegestoresandthelike.
UniversityPhysicsUniversityPhysicsisintendedforstudentsofscienceandengineering.Primaryemphasisisonphysicalprinciplesandproblem-solving;historicalbackgroundandspecializedpracticalapplicationshavebeengivenaplaceofsecondaryimportance.Manyworked-outexamplesandanextensivecollectionofproblemsareincludedwitheachchapter.Inthisneweditionthebasicphilosophyandoutlineandthebalancebetweendepthoftreatmentandbreadthofsubject-mattercoverageareunchangedfrompreviouseditions.Wehavetriedtopreservethosefeaturesthatusersofpreviouseditionshavefounddesirablewhileincorporatinganumberofchangesthatshouldenhancethebook’susefulness.Thetextbookisadaptabletoawidevarietyofcourseoutlines.Theentiretextbookcanbeusedforanintensivecoursetwoorthreesemestersinlength.Foralessintensivecoursemanyinstructorswillwanttoomitcertainchaptersorsectionstotailorthebooktotheirindividualneeds.Thearrangementofthiseditionfacilitatesthiskindofflexibility.Converselyhowevermanytopicsthatwereregardedafewyearsagoasofperipheral外围的次要的importanceandwereomittedfromintroductorycourseshavenowcometotheforeagaininthelifesciencesearthandspacesciencesandenvironmentalproblems.Aninstructorwhowishestostressthesekindsofapplicationswillfindthistextbookausefulsourcefordiscussionoftheappropriateprinciples.Inanycaseitshouldbeemphasizedthatinstructorsshouldnotfeelconstrained受约束的toworkstraightthroughthebookfromcovertocover.Manychaptersareofcourseinherentlysequentialinnaturebutwithinthisgenerallimitationinstructorsshouldbeencouragedtoselectamongthecontentsthosechaptersthatfittheirneedsomittingmaterialthatisnotrelevanttotheobjectivesofaparticularcourse.Comparedwiththeoldonethisnewedition______.
{{*HTML*}}???????????TheHistoryoftheFridge??1．Thefridgeisconsideredanecessity.Ithasbeensosincethe1960swhenpackagedfoodfirstappearedwithhelabel:storeintherefrigerator.2．InmyfridgelessfiftieschildhoodIwasfedwellandhealthily.Themilkmancamedailythegrocerthebutcherthebakerandtheice-creammandeliveredtwoorthreetimesaweek.TheSundaymeatwouldlastuntilWednesdayandsurplusbreadandmilkbecameallkindsofcakes.Nothingwaswastedandwewerenevertroubledbyrottenfood.Thirtyyearsonfooddeliverieshaveceasedfreshvegetablesarealmostunobtainableinthecountry.3．Theinventionofthefridgecontributedcomparativelylittletotheartoffoodpreservation.Avastvarietyofwell-triedtechniquesalreadyexisted--naturalcoolingdryingsmokingsaltingsugaringbottling??4．Whatrefrigerationdidpromotewasmarketing--marketinghardwareandelectricitymarketingsoftdrinksmarketingdeadbodiesofanimalsaroundtheglobeinsearchofagoodprice.??5．Consequentlymostoftheworld’sfridgesaretobefoundnotinthetropicswheretheymightproveusefulbutinthewealthycountrieswithmildtemperatureswheretheyareclimaticallyalmostunnecessary.Everywintermillionsoffridgeshumawaycontinuouslyandatvastexpensebusilymaintaininganartificially-cooledspaceinsideanartificially-heatedhouse-whileoutsidenatureprovidesthedesiredtemperaturefreeofcharge.??6．Thefridge’seffectupontheenvironmenthasbeenevidentwhileitscontributiontohumanhappinesshasbeeninsignificant.Ifyoudon’tbelievemetryityourself.Investinafoodcabinetandturnoffyourfridgenextwinter.Youmaymissthehamburgersbutatleastyou’llgetridofthatterriblehum.Paragraph5______
Theoncebarrenhillsidesarenowgoodfarmland.
UniversityPhysicsUniversityPhysicsisintendedforstudentsofscienceandengineering.Primaryemphasisisonphysicalprinciplesandproblem-solving;historicalbackgroundandspecializedpracticalapplicationshavebeengivenaplaceofsecondaryimportance.Manyworked-outexamplesandanextensivecollectionofproblemsareincludedwitheachchapter.Inthisneweditionthebasicphilosophyandoutlineandthebalancebetweendepthoftreatmentandbreadthofsubject-mattercoverageareunchangedfrompreviouseditions.Wehavetriedtopreservethosefeaturesthatusersofpreviouseditionshavefounddesirablewhileincorporatinganumberofchangesthatshouldenhancethebook’susefulness.Thetextbookisadaptabletoawidevarietyofcourseoutlines.Theentiretextbookcanbeusedforanintensivecoursetwoorthreesemestersinlength.Foralessintensivecoursemanyinstructorswillwanttoomitcertainchaptersorsectionstotailorthebooktotheirindividualneeds.Thearrangementofthiseditionfacilitatesthiskindofflexibility.Converselyhowevermanytopicsthatwereregardedafewyearsagoasofperipheral外围的次要的importanceandwereomittedfromintroductorycourseshavenowcometotheforeagaininthelifesciencesearthandspacesciencesandenvironmentalproblems.Aninstructorwhowishestostressthesekindsofapplicationswillfindthistextbookausefulsourcefordiscussionoftheappropriateprinciples.Inanycaseitshouldbeemphasizedthatinstructorsshouldnotfeelconstrained受约束的toworkstraightthroughthebookfromcovertocover.Manychaptersareofcourseinherentlysequentialinnaturebutwithinthisgenerallimitationinstructorsshouldbeencouragedtoselectamongthecontentsthosechaptersthatfittheirneedsomittingmaterialthatisnotrelevanttotheobjectivesofaparticularcourse.TheunderlinedwordsconverselyhoweverPara.4indicatethat______.
FinancingCollegeTrainingHighschoolstudentswhoaftergraduationwouldliketocontinuetheireducationarefrequentlyfacedwithmanyproblemsinfinancingcollegetraining.Freeeducationisnotsowide-spreadatthecollegelevel51attheelementaryand52schoollevels.Thereisusuallyachargefor53.Inadditionformoststudentsgoingtocollegemeanslivingawayfromhomeanexpensivematter.54thencanbedonebyastudentwhofindsthathemusthelptofinancehimselfifheisto55hiseducationbeyondhighschoolThereareseveral56Scholarshipsaresometimesavailable.Theseareusually57partlyonthebasisofhighgrades.Thereforetheday-todayworkinhighschoolmaybeveryimportantfordeterminingone’s58ofhelpfromthissource.Another59ofhelpisthecollegeloanfundwhichisestablishedforthe60ofprovidingloansto61students.Athirdplanisthatofworkingone’swaythroughschool.Workmayinvolve62apart-timejoboutsidethecollege.Sometimesitmeans63professorsinlaboratoryworklibraryworkoroffice64.Sometimesitmeansperformingsome65whichthestudentbodyrequiressuchashelpinginthepreparationandservingofmealsworkingincollegestoresandthelike.
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FinancingCollegeTrainingHighschoolstudentswhoaftergraduationwouldliketocontinuetheireducationarefrequentlyfacedwithmanyproblemsinfinancingcollegetraining.Freeeducationisnotsowide-spreadatthecollegelevel51attheelementaryand52schoollevels.Thereisusuallyachargefor53.Inadditionformoststudentsgoingtocollegemeanslivingawayfromhomeanexpensivematter.54thencanbedonebyastudentwhofindsthathemusthelptofinancehimselfifheisto55hiseducationbeyondhighschoolThereareseveral56Scholarshipsaresometimesavailable.Theseareusually57partlyonthebasisofhighgrades.Thereforetheday-todayworkinhighschoolmaybeveryimportantfordeterminingone’s58ofhelpfromthissource.Another59ofhelpisthecollegeloanfundwhichisestablishedforthe60ofprovidingloansto61students.Athirdplanisthatofworkingone’swaythroughschool.Workmayinvolve62apart-timejoboutsidethecollege.Sometimesitmeans63professorsinlaboratoryworklibraryworkoroffice64.Sometimesitmeansperformingsome65whichthestudentbodyrequiressuchashelpinginthepreparationandservingofmealsworkingincollegestoresandthelike.
{{*HTML*}}Pain??Allofushavefeltpain.Wehavecutourselves.Wehavebeenburned.Orwehavehad?headaches.Someofussufferpainrarelypainrarely.?46?.??Paincantakecompletecontrolofourbodyandmindmakingitimpossibletomoveandeven?tothink.Yetweneedpain.Withoutitwewouldnotknowifwehavehurtourselves.Itisourbody’swarningsystem.?47?.??Painisthemostcommonreasonwegotoadoctor.Itisthemostcommonreasonwetake?medicines.Untilrecentlyhowevermostdoctorsknewofonlyafewdrugsthatstoppedsomepains.?48?Butnewknowledgeabouttheprocessofpainishelpingthemtocontrolpainbetter.??Scientistshavelearnedthatthesenseofpainismadeupofbothchemicalandelectrical?signals.?49?Scientistsalsohavelearnedthatthenervoussystemsendstwodifferentkindsofpainmessagestothebrain:oneveryfasttheotherslow.??Thefirstmessageisthewarningsignal.Itmovesataspeedof30metersasecond.Inlessthan?asecondthebrainunderstandsthatpartofthebodyishurtandhowbadlyitisinjured.?50?.Ittellsusnottousetheinjuredpartuntilitheals.??A.Andothershavepainfulattacksallthetime.??B.Thesesignalstravelfromnervecellsintheinjuredareaupthespinalcord脊髓tothebrainandbackdownagain.??C.Ittellsusthatweareinjuredandshoulddosomethingaboutit.??D.Theyknewlittleabouttheprocessofpainitself.??E.Theothermessagemovesataspeedofonly013～meterasecond.??F.Andtheysendthesecondslowermessageofpaintothebrain.
{{*HTML*}}Pain??Allofushavefeltpain.Wehavecutourselves.Wehavebeenburned.Orwehavehad?headaches.Someofussufferpainrarelypainrarely.?46?.??Paincantakecompletecontrolofourbodyandmindmakingitimpossibletomoveandeven?tothink.Yetweneedpain.Withoutitwewouldnotknowifwehavehurtourselves.Itisourbody’swarningsystem.?47?.??Painisthemostcommonreasonwegotoadoctor.Itisthemostcommonreasonwetake?medicines.Untilrecentlyhowevermostdoctorsknewofonlyafewdrugsthatstoppedsomepains.?48?Butnewknowledgeabouttheprocessofpainishelpingthemtocontrolpainbetter.??Scientistshavelearnedthatthesenseofpainismadeupofbothchemicalandelectrical?signals.?49?Scientistsalsohavelearnedthatthenervoussystemsendstwodifferentkindsofpainmessagestothebrain:oneveryfasttheotherslow.??Thefirstmessageisthewarningsignal.Itmovesataspeedof30metersasecond.Inlessthan?asecondthebrainunderstandsthatpartofthebodyishurtandhowbadlyitisinjured.?50?.Ittellsusnottousetheinjuredpartuntilitheals.??A.Andothershavepainfulattacksallthetime.??B.Thesesignalstravelfromnervecellsintheinjuredareaupthespinalcord脊髓tothebrainandbackdownagain.??C.Ittellsusthatweareinjuredandshoulddosomethingaboutit.??D.Theyknewlittleabouttheprocessofpainitself.??E.Theothermessagemovesataspeedofonly013～meterasecond.??F.Andtheysendthesecondslowermessageofpaintothebrain.
{{*HTML*}}???????????TheHistoryoftheFridge??1．Thefridgeisconsideredanecessity.Ithasbeensosincethe1960swhenpackagedfoodfirstappearedwithhelabel:storeintherefrigerator.2．InmyfridgelessfiftieschildhoodIwasfedwellandhealthily.Themilkmancamedailythegrocerthebutcherthebakerandtheice-creammandeliveredtwoorthreetimesaweek.TheSundaymeatwouldlastuntilWednesdayandsurplusbreadandmilkbecameallkindsofcakes.Nothingwaswastedandwewerenevertroubledbyrottenfood.Thirtyyearsonfooddeliverieshaveceasedfreshvegetablesarealmostunobtainableinthecountry.3．Theinventionofthefridgecontributedcomparativelylittletotheartoffoodpreservation.Avastvarietyofwell-triedtechniquesalreadyexisted--naturalcoolingdryingsmokingsaltingsugaringbottling??4．Whatrefrigerationdidpromotewasmarketing--marketinghardwareandelectricitymarketingsoftdrinksmarketingdeadbodiesofanimalsaroundtheglobeinsearchofagoodprice.??5．Consequentlymostoftheworld’sfridgesaretobefoundnotinthetropicswheretheymightproveusefulbutinthewealthycountrieswithmildtemperatureswheretheyareclimaticallyalmostunnecessary.Everywintermillionsoffridgeshumawaycontinuouslyandatvastexpensebusilymaintaininganartificially-cooledspaceinsideanartificially-heatedhouse-whileoutsidenatureprovidesthedesiredtemperaturefreeofcharge.??6．Thefridge’seffectupontheenvironmenthasbeenevidentwhileitscontributiontohumanhappinesshasbeeninsignificant.Ifyoudon’tbelievemetryityourself.Investinafoodcabinetandturnoffyourfridgenextwinter.Youmaymissthehamburgersbutatleastyou’llgetridofthatterriblehum.Animportantcontributionmadebytheinventionofthefridgeisthat______.
SleeplessatNight Itwasanormalsummernight.Humidity湿气hunginthethickair. Icouldn’tgotosleeppartlybecauseofmycoldandpartlybecauseofmyexpectationsforthenextday.Mymumhadsaidthattomorrowwasgoingtobeasurprise. Sweatstucktomyachingbody.FinallyIgatheredenoughstrengthto.situp.Ilookedoutofmysmallwindowintothenight.Therewasabigbrightmoonhangingintheskygivingoffamagicglow. Icouldn’tstandthepressureanymoresoIdidwhatIalwaysdotomakemyselffeelbetter.Iwenttothebathroomandpickedupmytoothbrushandtoothpaste.Icleanedmyteethasiftherewasnotomorrow.Backandforthupanddown. ThenIwalkeddownstairstolookforsomesignsofmovementsomelife.Gladiatormycatfrightenedmeashemeowed喵喵地唱出hissadsong.Hewasontheoldorangecouch长沙发sittinguponhisfrontlegswaitingforsomethingtohappen.Helookedatmeasiftosay"I’mlonelypetme.Ineedagoodhug紧抱."Eventhecouchbeggedmetositonit. InonemovementIsettleddownontothesoftcouch.Thiscouchrepresentedmyparents’marriagemybirthandhundredsofotherlittleevents. AsIheldGladiatormyheartstartedbeatingheavily.Mymindwasfloodedwithquestions:What’slifeAmIreallyaliveAreyoulisteningtomeEverytimeImovedmyhanddownGladiator’sbodyIhadanewthought;eachtouchsangadifferentsong.Iforgotallabouttheheatandthenextday’ssurprise.TheatmospherewassofullofwarmthandsilencethatIsankintoitsarms.FallingasleepwiththebigcatinmyarmsIfeltallmyworriesslowlymoveaway. Theauthorofthepassagecouldnotgotosleeppartlybecause
{{*HTML*}}???????????TheHistoryoftheFridge??1．Thefridgeisconsideredanecessity.Ithasbeensosincethe1960swhenpackagedfoodfirstappearedwithhelabel:storeintherefrigerator.2．InmyfridgelessfiftieschildhoodIwasfedwellandhealthily.Themilkmancamedailythegrocerthebutcherthebakerandtheice-creammandeliveredtwoorthreetimesaweek.TheSundaymeatwouldlastuntilWednesdayandsurplusbreadandmilkbecameallkindsofcakes.Nothingwaswastedandwewerenevertroubledbyrottenfood.Thirtyyearsonfooddeliverieshaveceasedfreshvegetablesarealmostunobtainableinthecountry.3．Theinventionofthefridgecontributedcomparativelylittletotheartoffoodpreservation.Avastvarietyofwell-triedtechniquesalreadyexisted--naturalcoolingdryingsmokingsaltingsugaringbottling??4．Whatrefrigerationdidpromotewasmarketing--marketinghardwareandelectricitymarketingsoftdrinksmarketingdeadbodiesofanimalsaroundtheglobeinsearchofagoodprice.??5．Consequentlymostoftheworld’sfridgesaretobefoundnotinthetropicswheretheymightproveusefulbutinthewealthycountrieswithmildtemperatureswheretheyareclimaticallyalmostunnecessary.Everywintermillionsoffridgeshumawaycontinuouslyandatvastexpensebusilymaintaininganartificially-cooledspaceinsideanartificially-heatedhouse-whileoutsidenatureprovidesthedesiredtemperaturefreeofcharge.??6．Thefridge’seffectupontheenvironmenthasbeenevidentwhileitscontributiontohumanhappinesshasbeeninsignificant.Ifyoudon’tbelievemetryityourself.Investinafoodcabinetandturnoffyourfridgenextwinter.Youmaymissthehamburgersbutatleastyou’llgetridofthatterriblehum.{{*HTML*}}Paragraph2______??A．TheInventionoftheFridge??B．ThePollutionCausedbyFridges??C．TheWidespreadNeedforFridges??D．TheDayswithouttheFridge??E．ThewasteofEnergyCausedbyFridgesF．TheFridge’sContributiontoCommerce
FoodandHealthThefoodweeatseemstohaveprofoundeffectsonourhealth.Althoughsciencehasmadeenormousstepsinmakingfoodmorefittoeatithasatthesametimemademanyfoodsunfittoeat.Someresearchhasshownthatperhapseightypercentofallhumanillnessesarerelatedtothedietaswellespeciallycancerofthecolon结肠.Differentculturesaremorelikelytodevelopcertainillnessesbecauseofthefoodthatischaracteristicinthesecultures.Thatfoodisrelatedtoillnessisnotanewdiscovery.In1945governmentresearchersrealizedthatnitrates硝酸盐commonlyusedtopreservecolorinmeatsandotherfoodadditivesaccusedcancer.Yettheseadditivesremaininourfoodanditbecomesmoredifficultallthetimetoknowwhichthingsonthepackaginglabelsofprocessedfoodarehelpfulorharmful.Theadditiveswhichweeatarenotallsodirect.Farmersoftengivepenicillin青霉素tobeefandpoultry家禽andbecauseofthispenicillinhasbeenfoundinthemilkoftreatedcows.Sometimessimilardragsareadministeredtoanimalsnotformedicinalpurposeshutforfinancialreasons.Thefarmersaresimplytryingtofattentheanimalsinordertoobtainahigherpriceonthemarket.AlthoughtheFoodandDrugAdministrationFDAhastriedrepeatedlytocontroltheseproceduresthepracticescontinue.TheFDAhastriedtocontroltheprocessoffood.
FinancingCollegeTrainingHighschoolstudentswhoaftergraduationwouldliketocontinuetheireducationarefrequentlyfacedwithmanyproblemsinfinancingcollegetraining.Freeeducationisnotsowide-spreadatthecollegelevel51attheelementaryand52schoollevels.Thereisusuallyachargefor53.Inadditionformoststudentsgoingtocollegemeanslivingawayfromhomeanexpensivematter.54thencanbedonebyastudentwhofindsthathemusthelptofinancehimselfifheisto55hiseducationbeyondhighschoolThereareseveral56Scholarshipsaresometimesavailable.Theseareusually57partlyonthebasisofhighgrades.Thereforetheday-todayworkinhighschoolmaybeveryimportantfordeterminingone’s58ofhelpfromthissource.Another59ofhelpisthecollegeloanfundwhichisestablishedforthe60ofprovidingloansto61students.Athirdplanisthatofworkingone’swaythroughschool.Workmayinvolve62apart-timejoboutsidethecollege.Sometimesitmeans63professorsinlaboratoryworklibraryworkoroffice64.Sometimesitmeansperformingsome65whichthestudentbodyrequiressuchashelpinginthepreparationandservingofmealsworkingincollegestoresandthelike.
FinancingCollegeTrainingHighschoolstudentswhoaftergraduationwouldliketocontinuetheireducationarefrequentlyfacedwithmanyproblemsinfinancingcollegetraining.Freeeducationisnotsowide-spreadatthecollegelevel51attheelementaryand52schoollevels.Thereisusuallyachargefor53.Inadditionformoststudentsgoingtocollegemeanslivingawayfromhomeanexpensivematter.54thencanbedonebyastudentwhofindsthathemusthelptofinancehimselfifheisto55hiseducationbeyondhighschoolThereareseveral56Scholarshipsaresometimesavailable.Theseareusually57partlyonthebasisofhighgrades.Thereforetheday-todayworkinhighschoolmaybeveryimportantfordeterminingone’s58ofhelpfromthissource.Another59ofhelpisthecollegeloanfundwhichisestablishedforthe60ofprovidingloansto61students.Athirdplanisthatofworkingone’swaythroughschool.Workmayinvolve62apart-timejoboutsidethecollege.Sometimesitmeans63professorsinlaboratoryworklibraryworkoroffice64.Sometimesitmeansperformingsome65whichthestudentbodyrequiressuchashelpinginthepreparationandservingofmealsworkingincollegestoresandthelike.
{{*HTML*}}Pain??Allofushavefeltpain.Wehavecutourselves.Wehavebeenburned.Orwehavehad?headaches.Someofussufferpainrarelypainrarely.?46?.??Paincantakecompletecontrolofourbodyandmindmakingitimpossibletomoveandeven?tothink.Yetweneedpain.Withoutitwewouldnotknowifwehavehurtourselves.Itisourbody’swarningsystem.?47?.??Painisthemostcommonreasonwegotoadoctor.Itisthemostcommonreasonwetake?medicines.Untilrecentlyhowevermostdoctorsknewofonlyafewdrugsthatstoppedsomepains.?48?Butnewknowledgeabouttheprocessofpainishelpingthemtocontrolpainbetter.??Scientistshavelearnedthatthesenseofpainismadeupofbothchemicalandelectrical?signals.?49?Scientistsalsohavelearnedthatthenervoussystemsendstwodifferentkindsofpainmessagestothebrain:oneveryfasttheotherslow.??Thefirstmessageisthewarningsignal.Itmovesataspeedof30metersasecond.Inlessthan?asecondthebrainunderstandsthatpartofthebodyishurtandhowbadlyitisinjured.?50?.Ittellsusnottousetheinjuredpartuntilitheals.??A.Andothershavepainfulattacksallthetime.??B.Thesesignalstravelfromnervecellsintheinjuredareaupthespinalcord脊髓tothebrainandbackdownagain.??C.Ittellsusthatweareinjuredandshoulddosomethingaboutit.??D.Theyknewlittleabouttheprocessofpainitself.??E.Theothermessagemovesataspeedofonly013～meterasecond.??F.Andtheysendthesecondslowermessageofpaintothebrain.
Onthebrinkofmatrimonyhefledtoadesertisland.
FoodandHealthThefoodweeatseemstohaveprofoundeffectsonourhealth.Althoughsciencehasmadeenormousstepsinmakingfoodmorefittoeatithasatthesametimemademanyfoodsunfittoeat.Someresearchhasshownthatperhapseightypercentofallhumanillnessesarerelatedtothedietaswellespeciallycancerofthecolon结肠.Differentculturesaremorelikelytodevelopcertainillnessesbecauseofthefoodthatischaracteristicinthesecultures.Thatfoodisrelatedtoillnessisnotanewdiscovery.In1945governmentresearchersrealizedthatnitrates硝酸盐commonlyusedtopreservecolorinmeatsandotherfoodadditivesaccusedcancer.Yettheseadditivesremaininourfoodanditbecomesmoredifficultallthetimetoknowwhichthingsonthepackaginglabelsofprocessedfoodarehelpfulorharmful.Theadditiveswhichweeatarenotallsodirect.Farmersoftengivepenicillin青霉素tobeefandpoultry家禽andbecauseofthispenicillinhasbeenfoundinthemilkoftreatedcows.Sometimessimilardragsareadministeredtoanimalsnotformedicinalpurposeshutforfinancialreasons.Thefarmersaresimplytryingtofattentheanimalsinordertoobtainahigherpriceonthemarket.AlthoughtheFoodandDrugAdministrationFDAhastriedrepeatedlytocontroltheseproceduresthepracticescontinue.Allthedrugsgiventothelivinganimalsareforthehealthofthelivinganimals.
FinancingCollegeTrainingHighschoolstudentswhoaftergraduationwouldliketocontinuetheireducationarefrequentlyfacedwithmanyproblemsinfinancingcollegetraining.Freeeducationisnotsowide-spreadatthecollegelevel51attheelementaryand52schoollevels.Thereisusuallyachargefor53.Inadditionformoststudentsgoingtocollegemeanslivingawayfromhomeanexpensivematter.54thencanbedonebyastudentwhofindsthathemusthelptofinancehimselfifheisto55hiseducationbeyondhighschoolThereareseveral56Scholarshipsaresometimesavailable.Theseareusually57partlyonthebasisofhighgrades.Thereforetheday-todayworkinhighschoolmaybeveryimportantfordeterminingone’s58ofhelpfromthissource.Another59ofhelpisthecollegeloanfundwhichisestablishedforthe60ofprovidingloansto61students.Athirdplanisthatofworkingone’swaythroughschool.Workmayinvolve62apart-timejoboutsidethecollege.Sometimesitmeans63professorsinlaboratoryworklibraryworkoroffice64.Sometimesitmeansperformingsome65whichthestudentbodyrequiressuchashelpinginthepreparationandservingofmealsworkingincollegestoresandthelike.
Theweatherherehasbeenexceptionallymild.
TeachingPoetryNopoemshouldeverbediscussedoranalyzeduntilithasbeenreadaloudbysomeoneteacherorstudent.Betterstillperhapsisthepracticeofreadingittwiceonceatthebeginningofthediscussionandonceattheendsothesoundofthepoemisthelastthingonehearsofit.Alldiscussionsofpoetryareinfactpreparationsforreadingitaloudandthereadingofthepoemisfinallythemosttellinginterpretationofitsuggestingtonerhythmandmeaningallatonce.Hearingapoetreadtheworkinhisorherownvoiceonrecordsoronfilmisobviouslyaspecialreward.Buteventhoseaidstoteachingcannotreplacethestudentandteacherreadingitorbestofallreciting背诵it.Ihavecometothinkinfactthattimespentreadingapoemaloudismuchmoreimportantthananalyzingitifthereisn’ttimeforboth.IthinkoneofourgoalsasteachersofEnglishistohavestudentslovepoetry.Poetryisacriticismoflifeandaheightening提升oflife.Itisanapproachtothetruthoffeelinganditcansaveyourlife.Italsodeservesaplaceintheteachingoflanguageandliteraturemorecentralthanitpresentlyoccupies.IamnotsayingthateveryEnglishteachermustteachpoetry.Thosewhodon’tlikeitshouldnotbeforcedtoputthatdislikeonanyoneelse.Butthosewhodoteachpoetrymustkeepinmindafewthingsaboutitsessentialnatureaboutitssoundaswellasitssenseandtheymustmakeroomintheclassroomforhearingpoetryaswellasthinkingaboutit.Thephrasemakeroominthelastparagraphcouldbebestreplacedby
Itseemshighlyunlikelythatshewillpasstheexam
Whensnowcollectsontopofabuildingduringthewintertheweightsometimesweakenstheconstructionandoccasionallycausestherooftocollapse.
{{*HTML*}}???????????TheHistoryoftheFridge??1．Thefridgeisconsideredanecessity.Ithasbeensosincethe1960swhenpackagedfoodfirstappearedwithhelabel:storeintherefrigerator.2．InmyfridgelessfiftieschildhoodIwasfedwellandhealthily.Themilkmancamedailythegrocerthebutcherthebakerandtheice-creammandeliveredtwoorthreetimesaweek.TheSundaymeatwouldlastuntilWednesdayandsurplusbreadandmilkbecameallkindsofcakes.Nothingwaswastedandwewerenevertroubledbyrottenfood.Thirtyyearsonfooddeliverieshaveceasedfreshvegetablesarealmostunobtainableinthecountry.3．Theinventionofthefridgecontributedcomparativelylittletotheartoffoodpreservation.Avastvarietyofwell-triedtechniquesalreadyexisted--naturalcoolingdryingsmokingsaltingsugaringbottling??4．Whatrefrigerationdidpromotewasmarketing--marketinghardwareandelectricitymarketingsoftdrinksmarketingdeadbodiesofanimalsaroundtheglobeinsearchofagoodprice.??5．Consequentlymostoftheworld’sfridgesaretobefoundnotinthetropicswheretheymightproveusefulbutinthewealthycountrieswithmildtemperatureswheretheyareclimaticallyalmostunnecessary.Everywintermillionsoffridgeshumawaycontinuouslyandatvastexpensebusilymaintaininganartificially-cooledspaceinsideanartificially-heatedhouse-whileoutsidenatureprovidesthedesiredtemperaturefreeofcharge.??6．Thefridge’seffectupontheenvironmenthasbeenevidentwhileitscontributiontohumanhappinesshasbeeninsignificant.Ifyoudon’tbelievemetryityourself.Investinafoodcabinetandturnoffyourfridgenextwinter.Youmaymissthehamburgersbutatleastyou’llgetridofthatterriblehum.{{*HTML*}}Beforefridgescameintouseitwasstillpossibleforpeopletohavefreshfoodsbecause______.??A．milkmeantvegetablesetc.weredelivered??B．ithaspromotedthesalesofmanykindsofcommodities??C．aneweconomicalwaytopreservefood??D．mostkidslikeicedsoftdrinks??E．somethingeveryhousewifeneedsF．producedbythefridgewhenitisworking
TeachingPoetryNopoemshouldeverbediscussedoranalyzeduntilithasbeenreadaloudbysomeoneteacherorstudent.Betterstillperhapsisthepracticeofreadingittwiceonceatthebeginningofthediscussionandonceattheendsothesoundofthepoemisthelastthingonehearsofit.Alldiscussionsofpoetryareinfactpreparationsforreadingitaloudandthereadingofthepoemisfinallythemosttellinginterpretationofitsuggestingtonerhythmandmeaningallatonce.Hearingapoetreadtheworkinhisorherownvoiceonrecordsoronfilmisobviouslyaspecialreward.Buteventhoseaidstoteachingcannotreplacethestudentandteacherreadingitorbestofallreciting背诵it.Ihavecometothinkinfactthattimespentreadingapoemaloudismuchmoreimportantthananalyzingitifthereisn’ttimeforboth.IthinkoneofourgoalsasteachersofEnglishistohavestudentslovepoetry.Poetryisacriticismoflifeandaheightening提升oflife.Itisanapproachtothetruthoffeelinganditcansaveyourlife.Italsodeservesaplaceintheteachingoflanguageandliteraturemorecentralthanitpresentlyoccupies.IamnotsayingthateveryEnglishteachermustteachpoetry.Thosewhodon’tlikeitshouldnotbeforcedtoputthatdislikeonanyoneelse.Butthosewhodoteachpoetrymustkeepinmindafewthingsaboutitsessentialnatureaboutitssoundaswellasitssenseandtheymustmakeroomintheclassroomforhearingpoetryaswellasthinkingaboutit.AccordingtothewriteroneofthepurposesofteachingEnglishistogetstudents
Injudgingourworkyoushouldtakeintoconsiderationthefactthatwehavebeenverybusyrecently.
FoodandHealthThefoodweeatseemstohaveprofoundeffectsonourhealth.Althoughsciencehasmadeenormousstepsinmakingfoodmorefittoeatithasatthesametimemademanyfoodsunfittoeat.Someresearchhasshownthatperhapseightypercentofallhumanillnessesarerelatedtothedietaswellespeciallycancerofthecolon结肠.Differentculturesaremorelikelytodevelopcertainillnessesbecauseofthefoodthatischaracteristicinthesecultures.Thatfoodisrelatedtoillnessisnotanewdiscovery.In1945governmentresearchersrealizedthatnitrates硝酸盐commonlyusedtopreservecolorinmeatsandotherfoodadditivesaccusedcancer.Yettheseadditivesremaininourfoodanditbecomesmoredifficultallthetimetoknowwhichthingsonthepackaginglabelsofprocessedfoodarehelpfulorharmful.Theadditiveswhichweeatarenotallsodirect.Farmersoftengivepenicillin青霉素tobeefandpoultry家禽andbecauseofthispenicillinhasbeenfoundinthemilkoftreatedcows.Sometimessimilardragsareadministeredtoanimalsnotformedicinalpurposeshutforfinancialreasons.Thefarmersaresimplytryingtofattentheanimalsinordertoobtainahigherpriceonthemarket.AlthoughtheFoodandDrugAdministrationFDAhastriedrepeatedlytocontroltheseproceduresthepracticescontinue.Nitratesareusuallyusedforkeepingthesmelloffood.
Herfatherwasaquietmanwithgracefulmanners．
FinancingCollegeTrainingHighschoolstudentswhoaftergraduationwouldliketocontinuetheireducationarefrequentlyfacedwithmanyproblemsinfinancingcollegetraining.Freeeducationisnotsowide-spreadatthecollegelevel51attheelementaryand52schoollevels.Thereisusuallyachargefor53.Inadditionformoststudentsgoingtocollegemeanslivingawayfromhomeanexpensivematter.54thencanbedonebyastudentwhofindsthathemusthelptofinancehimselfifheisto55hiseducationbeyondhighschoolThereareseveral56Scholarshipsaresometimesavailable.Theseareusually57partlyonthebasisofhighgrades.Thereforetheday-todayworkinhighschoolmaybeveryimportantfordeterminingone’s58ofhelpfromthissource.Another59ofhelpisthecollegeloanfundwhichisestablishedforthe60ofprovidingloansto61students.Athirdplanisthatofworkingone’swaythroughschool.Workmayinvolve62apart-timejoboutsidethecollege.Sometimesitmeans63professorsinlaboratoryworklibraryworkoroffice64.Sometimesitmeansperformingsome65whichthestudentbodyrequiressuchashelpinginthepreparationandservingofmealsworkingincollegestoresandthelike.
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