Mostofusprobablylivewithoutvegetables,butaworldwithoutchocolate?Nowthatwouldbehard!Accordingtochocolatemakersitcouldhappenifwedon'tactsoon.
Therearetwomaincausesofthechocolateshortage(短缺)-chocolate'sgrowingpopularityandlessproductionofcocoa,theplantfromwhichchocolateismade.WithmoreandmorepeopleinIndiaandChinalovingchocolate,notmuchcanbedoneaboutthefirstcause.
Therefore,theonlythingwecandoistoincreasecocoaproduction.However,newplantdiseasesandlittleraininIvoryCoastandGhana,theworld'slargestproducers,havereducedcocoaproductionby40percentinthepast10years.What'sworse,manycocoafarmersinAfricaandothercocoa-producingcountrieslikeIndonesiaandVenezuelaarechangingtoeasier-to-growcropssuchascornorrubber.Thisway,thefarmerscanmakemoremoney.
Topreventmorefarmersfromchanging,researchersatthenewlyopenedInternationalCocoaControlCentre,intheUK,aretryingtocreatenewcocoaplantsthatarestrongerandfastergrowing.Butfirsttheymustmakesurethenewplantsaresafetogrow.Thistakesalongtime.
First,eachnewplantisstoredattheControlCentreforsixmonthstomakesureitishealthy.ItisthenplantedintheCentre'sfields,studiedandtestedforanothertwoyears.Onlyafterscientistsarecertainthatthey'redisease-free,willtheplantsbesenttofarmersinWestAfricaorwhereverelsetheyareneeded.
Tocreatenewstrongertypesofcocoa,scientistsattheControlCentrearecombining(结合)thebestpartsfromdifferentcocoaplants.Thoughtheworldisfacingaseriouschocolateshortage,thereisnowhope!
53.Inwhichcountrieshaschocolatebecomemorepopularinrecentyears?___
54.HowlongdoesittakescientistsattheControlCentretomakesureacocoaplantissafetogrow?___
55.IfyouareacocoafarmerinAfrica,willyoucontinuetogrowcocoa?Whyorwhynot?___.