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1/8必修4Unit1ASTUDENTOFAFRICANWILDLIFEItis5:45amandthesunisjustrisingoverin.FollowingJane'swayofstudyingchimps,ourgroupareallgoingtovisitthemintheforest.Janehasstudiedthesefamiliesofchimpsformanyyearsandhelpedpeopleunderstandhowmuchtheybehavelikehumans.Watchingafamilyofchimpswakeupisourfirstactivityoftheday.Thismeansgoingbacktotheplacewhereweleftthefamilysleepinginatreethenightbefore.Everybodysitsandwaitsintheshadeofthetreeswhilethefamilybeginstowakeupandmoveoff.Thenwefollowastheywanderintotheforest.Mostofthetime,chimpseitherfeedorcleaneachotherasawayofshowingloveintheirfamily.Janewarnsusthatourgroupisgoingtobeverytiredanddirtybytheafternoonandsheisright.However,theeveningmakesitallworthwhile.Wewatchthemotherchimpandherbabiesplayinthetree.Thenweseethemgotosleeptogetherintheirnestforthenight.Werealizethatthebondbetweenmembersofachimpfamilyisasstrongasinahumanfamily.Shehasachievedeverythingshewantedtodo:workingwithanimalsintheirownenvironment,gainingadoctor'sdegreeandshowingthatwomencanliveintheforestasmencan.Sheinspiresthosewhowanttocheertheachievementsofwomen.WHYNOTCARRYONHERGOODWORK?BychanceIcameacrossanarticleaboutadoctorcalledLinQiaozhi,aspecialistinwomen'sdiseases.Shelivedfrom1901to1983.Itseemedthatshehadbeenverybusyinherchosencareer,travellingabroadtostudyaswellaswritingbooksandarticles.Oneofthemcaughtmyeye.Itwasasmallbookexplaininghowtocutthedeathratefromhavingandcaringforbabies.Shegavesomesimplerulestofollowforkeepingbabiesclean,healthyandfreefromsickness.Whydidshewritethat?WhowerethewomenthatLinQiaozhithoughtneededthisadvice?Ilookedcarefullyatthetextand2/8realizedthatitwasintendedforwomeninthecountryside.Perhapsiftheyhadanemergencytheycouldnotreachadoctor.Suddenlyithitmehowdifficultitwasforawomantogetmedicaltrainingatthattime.Thatwasagenerationwhengirls'educationwasalwaysplacedsecondtoboys'.Wasshesomuchclevererthananyoneelse?Furtherreadingmademerealizethatitwashardworkanddeterminationaswellashergentlenaturethatgotherintomedicalschool.Whatmadehersucceedlateronwasthekindnessandconsiderationsheshowedtoallherpatients.TherewasstoryafterstoryofhowLinQiaozhi,tiredafteraday'swork,wentlateatnighttodeliverababyforapoorfamilywhocouldnotpayher.BynowIcouldnotwaittofindoutmoreabouther.IdiscoveredthatLinQiaozhihaddevotedherwholelifetoherpatientsandhadchosennottohaveafamilyofherown.Insteadshemadesurethatabout50,000babiesweresafelydelivered.BythistimeIwasveryexcited.WhynotstudyatmedicalcollegelikeLinQiaozhiandcarryonhergoodwork?Itwasstillnottoolateformetoimprovemystudies,preparefortheuniversityentranceexaminations,and….必修4Unit2APIONEERFORALLPEOPLEAlthoughheisoneof'smostfamousscientists,YuanLongpingconsidershimselfafarmer,forheworksthelandtodohisresearch.Indeed,hissunburntfaceandarmsandhisslim,strongbodyarejustlikethoseofmillionsofChinesefarmers,forwhomhehasstruggledforthepastfivedecades.DrYuanLongpinggrowswhatiscalledsuperhybridrice.In1974,hebecamethefirstagriculturalpioneerintheworldtogrowricethathasahighoutput.Thisspecialstrainofricemakesitpossibletoproduceone-thirdmoreofthecropinthesamefields.Nowmorethan60%ofthericeproducedineachyearisfromthishybridstrain.Bornintoapoorfarmer'sfamilyin1930,DrYuangraduatedfromin1953.Sincethen,findingwaystogrowmorericehasbeenhislifegoal.Asayoungman,hesawthegreatneedforincreasingthericeoutput.Atthattime,hungerwasadisturbingprobleminmanypartsofthecountryside.DrYuansearchedforawayto3/8increasericeharvestswithoutexpandingtheareaofthefields.In1950,Chinesefarmerscouldproduceonlyfiftymilliontonsofrice.Inarecentharvest,however,nearlytwohundredmilliontonsofricewasproduced.Theseincreasedharvestsmeanthat22%oftheworld'speoplearefedfromjust7%ofthefarmlandin.DrYuanisnowcirculatinghisknowledgein,andmanyotherlessdevelopedcountriestoincreasetheirriceharvests.Thankstohisresearch,theUNhasmoretoolsinthebattletoridtheworldofhunger.Usinghishybridrice,farmersareproducingharveststwiceaslargeasbefore.Justdreamingforthings,however,costsnothing.LongagoDryuanhadadreamaboutriceplantsastallassorghum.Eachearofricewasasbigasanearofcornandeachgrainofricewasashugeasapeanut.DrYuanawokefromhisdreamwiththehopeofproducingakindofricethatcouldfeedmorepeople.Now,manyyearslater,DrYuanhasanotherdream:toexporthisricesothatitcanbegrownaroundtheglobe.Onedreamisnotalwaysenough,especiallyforapersonwholovesandcaresforhispeople.CHEMICALORORGANICFARMING?Whataresomeoftheproblemscausedbychemicalfertilizers?First,theydamagethelandbykillingthehelpfulbacteriaandpestsaswellastheharmfulones.Chemicalsalsostayinthegroundandundergroundwaterforalongtime.Thisaffectscropsand,therefore,animalsandhumans,sincechemicalsgetinsidethecropsandcannotjustbewashedoff.Thesechemicalsinthefoodsupplybuildupinpeople'sbodiesovertime.Manyofthesechemicalscanleadtocancerorotherillnesses.Inaddition,fruit,vegetablesandotherfoodgrownwithchemicalfertilizersusuallygrowtoofasttobefullofmuchnutrition.Theymaylookbeautiful,butinsidethereisusuallymorewaterthanvitaminsandminerals.Withthesediscoveries,somefarmersandmanycustomersarebeginningtoturntoorganicfarming.Organicfarmingis