人教版高中英语必修课文原文Unit 范文.docx

人教版高中英语必修课文原文Unit 范文.docx

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人教版高中英语必修课文原文Unit范文

必修4Unit1

ASTUDENTOFAFRICANWILDLIFE

Itis5:

45amandthesunisjustrisingoverGombeNationalParkinEastAfrica.FollowingJane'swayofstudyingchimps,ourgroupareallgoingtovisitthemintheforest.Janehasstudiedthesefamiliesofchimpsformanyyearsandhelpedpeopleunderstandhowmuchtheybehavelikehumans.Watchingafamilyofchimpswakeupisourfirstactivityoftheday.Thismeansgoingbacktotheplacewhereweleftthefamilysleepinginatreethenightbefore.Everybodysitsandwaitsintheshadeofthetreeswhilethefamilybeginstowakeupandmoveoff.Thenwefollowastheywanderintotheforest.Mostofthetime,chimpseitherfeedorcleaneachotherasawayofshowingloveintheirfamily.Janewarnsusthatourgroupisgoingtobeverytiredanddirtybytheafternoonandsheisright.However,theeveningmakesitallworthwhile.Wewatchthemotherchimpandherbabiesplayinthetree.Thenweseethemgotosleeptogetherintheirnestforthenight.Werealizethatthebondbetweenmembersofachimpfamilyisasstrongasinahumanfamily.

NobodybeforeJanefullyunderstoodchimpbehaviour.Shespentyearsobservingandrecordingtheirdailyactivities.Sinceherchildhoodshehadwantedtoworkwithanimalsintheirownenvironment.However,thiswasnoteasy.WhenshefirstarrivedinGombein1960,itwasunusualforawomantoliveintheforest.Onlyafterhermothercametohelpherforthefirstfewmonthswassheallowedtobeginherproject.Herworkchangedthewaypeoplethinkaboutchimps.Forexample,oneimportantthingshediscoveredwasthatchimpshuntandeatmeat.Untiltheneveryonehadthoughtchimpsateonlyfruitandnuts.Sheactuallyobservedchimpsasagrouphuntingamonkeyandtheneatingit.Shealsodiscoveredhowchimpscommunicatewitheachother,andherstudyoftheirbodylanguagehelpedherworkouttheirsocialsystem.

ForfortyyearsJaneGoodallhasbeenoutspokenaboutmakingtherestoftheworldunderstandandrespectthelifeoftheseanimals.Shehasarguedthatwildanimalsshouldbeleftinthewildandnotusedforentertainmentoradvertisements.Shehashelpedtosetupspecialplaceswheretheycanlivesafely.Sheisleadingabusylifebutshesays:

"OnceIstop,itallcomescrowdinginandIrememberthechimpsinlaboratories.It'sterrible.ItaffectsmewhenIwatchthewildchimps.Isaytomyself,'Aren'ttheylucky?

"AndthenIthinkaboutsmallchimpsincagesthoughtheyhavedonenothingwrong.Onceyouhaveseenthatyoucanneverforget..."

Shehasachievedeverythingshewantedtodo:

workingwithanimalsintheirownenvironment,gainingadoctor'sdegreeandshowingthatwomencanliveintheforestasmencan.Sheinspiresthosewhowanttocheertheachievementsofwomen.

WHYNOTCARRYONHERGOODWORK?

IenjoyedEnglish,biology,andchemistryatschool,butwhichoneshouldIchoosetostudyatuniversity?

IdidnotknowtheansweruntiloneeveningwhenIsatdownatthecomputertodosomeresearchongreatwomenofChina.

BychanceIcameacrossanarticleaboutadoctorcalledLinQiaozhi,aspecialistinwomen'sdiseases.Shelivedfrom1901to1983.Itseemedthatshehadbeenverybusyinherchosencareer,travellingabroadtostudyaswellaswritingbooksandarticles.Oneofthemcaughtmyeye.Itwasasmall

bookexplaininghowtocutthedeathratefromhavingandcaringforbabies.Shegavesomesimplerulestofollowforkeepingbabiesclean,healthyandfreefromsickness.Whydidshewritethat?

WhowerethewomenthatLinQiaozhithoughtneededthisadvice?

Ilookedcarefullyatthetextand

realizedthatitwasintendedforwomeninthecountryside.Perhapsiftheyhadanemergencytheycouldnotreachadoctor.

Suddenlyithitmehowdifficultitwasforawomantogetmedicaltrainingatthattime.Thatwasagenerationwhengirls'educationwasalwaysplacedsecondtoboys'.Wasshesomuchclevererthananyoneelse?

Furtherreadingmademerealizethatitwashardworkanddeterminationaswellashergentlenaturethatgotherintomedicalschool.Whatmadehersucceedlateronwasthekindnessandconsiderationsheshowedtoallherpatients.TherewasstoryafterstoryofhowLinQiaozhi,tiredafteraday'swork,wentlateatnighttodeliverababyforapoorfamilywhocouldnotpayher.

BynowIcouldnotwaittofindoutmoreabouther.IdiscoveredthatLinQiaozhihaddevotedherwholelifetoherpatientsandhadchosennottohaveafamilyofherown.Insteadshemadesurethatabout50,000babiesweresafelydelivered.BythistimeIwasveryexcited.WhynotstudyatmedicalcollegelikeLinQiaozhiandcarryonhergoodwork?

Itwasstillnottoolateformetoimprovemystudies,preparefortheuniversityentranceexaminations,and….

必修4Unit2

APIONEERFORALLPEOPLE

AlthoughheisoneofChina'smostfamousscientists,YuanLongpingconsidershimselfafarmer,forheworksthelandtodohisresearch.Indeed,hissunburntfaceandarmsandhisslim,strongbodyarejustlikethoseofmillionsofChinesefarmers,forwhomhehasstruggledforthepastfivedecades.DrYuanLongpinggrowswhatiscalledsuperhybridrice.In1974,hebecamethefirstagriculturalpioneerintheworldtogrowricethathasahighoutput.Thisspecialstrainofricemakesitpossibletoproduceone-thirdmoreofthecropinthesamefields.Nowmorethan60%ofthericeproducedinChinaeachyearisfromthishybridstrain.

Bornintoapoorfarmer'sfamilyin1930,DrYuangraduatedfromSouthwestAgriculturalCollegein1953.Sincethen,findingwaystogrowmorericehasbeenhislifegoal.Asayoungman,hesawthegreatneedforincreasingthericeoutput.Atthattime,hungerwasadisturbingprobleminmanypartsofthecountryside.DrYuansearchedforawaytoincreasericeharvestswithoutexpandingtheareaofthefields.In1950,Chinesefarmerscouldproduceonlyfiftymilliontonsofrice.Inarecentharvest,however,nearlytwohundredmilliontonsofricewasproduced.Theseincreasedharvestsmeanthat22%oftheworld'speoplearefedfromjust7%ofthefarmlandinChina.DrYuanisnowcirculatinghisknowledgeinIndia,Vietnamandmanyotherlessdevelopedcountriestoincreasetheirriceharvests.Thankstohisresearch,theUNhasmoretoolsinthebattletoridtheworldofhunger.Usinghishybridrice,farmersareproducingharveststwiceaslargeasbefore.

DrYuanisquitesatisfiedwithhislife.However,hedoesn'tcareaboutbeingfamous.Hefeelsitgiveshimlessfreedomtodohisresearch.Hewouldmuchratherkeeptimeforhishobbles.Heenjoyslisteningtoviolinmusic,playingmah-jong,swimmingandreading.Spendingmoneyonhimselforleadingacomfortablelifealsomeansverylittletohim.Indeed,hebelievesthatapersonwithtoomuchmoneyhasmoreratherthanfewertroubles.Hethereforegivesmillionsofyuantoequipothersfortheirresearchinagriculture.

Justdreamingforthings,however,costsnothing.LongagoDryuanhadadreamaboutriceplantsastallassorghum.Eachearofricewasasbigasanearofcornandeachgrainofricewasashugeasapeanut.DrYuanawokefromhisdreamwiththehopeofproducingakindofricethatcouldfeedmorepeople.Now,manyyearslater,DrYuanhasanotherdream:

toexporthisricesothatitcanbegrownaroundtheglobe.Onedreamisnotalwaysenough,especiallyforapersonwholovesandcaresforhispeople.

CHEMICALORORGANICFARMING?

Overthepasthalfcentury,usingchemicalfertilizershasbecomeverycommoninfarming.Manyfarmerswelcomedthemasagreatwaytostopcropdiseaseandincreaseproduction.Recently,however,scientistshavebeenfindingthatlong-termuseofthesefertilizerscancausedamagetothelandand,evenmoredangerous,topeople'shealth.

Whataresomeoftheproblemscausedbychemicalfertilizers?

First,theydamagethelandbykillingthehelpfulbacteriaandpestsaswellastheharmfulones.Chemicalsalsostayinthegroundandundergroundwaterforalongtime.Thisaffectscropsand,therefore,animalsandhumans,sincechemicalsgetinsidethecropsandcannotjustbewashedoff.Thesechemicalsinthefoodsupplybuildupinpeople'sbodiesovertime.Manyofthesechemicalscanleadtocancerorotherillnesses.Inaddition,fruit,vegetablesandotherfoodgrownwithchemicalfertilizersusuallygrowtoofasttobefullofmuchnutrition.Theymaylookbeautiful,butinsidethereisusuallymorewaterthanvitaminsandminerals.

Withthesediscoveries,somefarmersandmanycustomersarebeginningtoturntoorganicfarming.Organicfarmingissimplyfarmingwithoutusinganychemicals.Theyfocusonkeepingtheirsoilrichandfreeofdisease.Ahealthysoilreducesdiseaseandhelpscropsgrowstrongandhealthy.Organicfarmers,therefore,oftenpreferusingnaturalwastefromanimalsasfertilizer.Theyfeelthatthismakesthesoilintheirfieldsricherinmineralsandsomorefertile.Thisalsokeepstheair,soil,waterandcropsfreefromchemicals.

Organicfarmersalsousemanyothermethodstokeepthesoilfertile.Theyoftenchangethekindofcropineachfieldeveryfewyears,forexample,growingcornorwheatandthenthenextyearpeasorsoybeans.Cropssuchaspeasorsoybeansputimportantmineralsbackintothesoil,makingitreadyforcropssuchaswheatorcornthatneedrichandfertilesoil.Organicfarmersalsoplantcropstousedifferentlevelsofsoil,forexample,plantingpeanutsthatusetheground'ssurfacefollowedbyvegetablesthatputdowndeeproots.Someorganicfarmerspreferplantinggrassbetweencropstopreventwindorwaterfromcarryingawaythesoil,andthenleavingitinthegroundtobecomeanat