2020-2021学年初三英语知识点归纳及题型专练:阅读短文回答问题一短文内容回答问题OnJune26th,2000,twoscientists,calledFrancisCollinsandCraigVenter,toldtheworldthattheycouldnowreadthewhole“map”ofthehumanbody:DNA
DNAissomethingthatallhumanshave,andittellsthebodywhattodo
DNAisthereasonthatwelooklikeourmotherandfather,becausewegetsomeoftheirDNAtomakeourown
Nowwecanreadsomeofthis“map”,andsowecanfindoutmoreabouthowourbodieswork
Peoplehavebeentryingtounderstandthehumanbodyforalongtime
In1860,GregoryMendeldiscoveredthatthereisaspecialreasonwhywelookthesameasotherpeopleinourfamily
Itisbecauseofsmallthingscalled“genes”thatwehaveinourbody
In1953,JamesWatsonandFrancisCrickmadeanotherdiscoveryandfoundoutthatthosesmallpartsarereallymessageswrittenintheDNAwithaspeciallanguage
In1961,MarshallNirenbergandJohannMatthaeifoundthefirst“word”thatthe