Unit3课文语法填空-高中英语牛津译林版选择性必修第二册

选择性必修二第三单元课文语法填空The futureis in our genesGoodafternoon,ladies andgentlemen.Thank youall forcoming tothis lecture.the courseof mycareer,!have seenmany wonderfulscientific developments,but areasgame-changing asgenome editing.I amfull ofexcitement aboutthe possibilitiesthisscientific advancecan bringand Ihope toshare myexcitement youtoday.many ofyou mayalready know,genes playa criticalrole inshapeourlives.Everything fromthe colourofour eyesto ourtalent formaths dependson genes.The completeset ofgenes insidea cellor anylivingbeing iscalled agenome.Our ownpersonal genomecarries all the informationneedto make usgrowand develop.lt alsocontains informationhelps determineour lifespanand affectsour chancesofcontractcertain diseases.Some people,for example,carry agene thatmakes themmorelikelycatcha certainvirus ordevelop aparticular formof cancer.Geneticiststryto identifywhich genesrelate towhich diseases,they believegenome editingis aneffectivemeans ofdisease treatmentandprevent.It allowsgenetomake changesto thegenome bycorrecting^dding,deleting orreplacing specificparts of the geneticmaterial.In thenearfuture,geneticists hopeto applythis technologytreatawide rangeof health problems.Soon wemaybe ableto usesuch treatmentsto restorea blindpersons visionor givesomeone whowas borndeafan excellentsense ofhearing.Ultimately,this newtechnology mighteven makeit possibleto preventdiseasesever developingby correctingnormalgenesearly on.Genome editing,serveas anewweapon inthe fightagainst diseases,will leadto afundamental changeinourapproach healthcare.As thetechnology continuesto developa fastpace,questions ariseaboutto useit appropriately.Should werestrict ouruse ofthis technologythe treatmentand preventionofdiseasesShould weprohibit geneticistsuseitto enhancehealthy bodiesOneday soonwe willbeable touse genome editing toincrease thehuman resistancecolds andfl us,tomakepeopletall,tohelp theirmuscles developfaster,tosharpall of their sensesor tomake themmore intelligent.We willbe ableto selectspecificcharacteristics forchildren beforethey areborn,createsome havecalled designerbabies.Howeverjs thisa goodthingWhat consequencesmight ithavePhilosophers,geneticists andgovernmentofficials haveall startedto wrestlesuchmoral issues.We haveto figurehow tokeep thetechnology fromrunning wild.Thismeansputappropriate controlsplace tomake surethat genome editing willworkour advantage.them.genomeeditingcould beas dangerousas acar outofcontrol.There isstill muchexploreanddebated onthe subjectof genomeediting.the publicargument overthistechnology,its possibilitieshave beencreating muchexcitement theentire medicalcommunityand.doubt,genomeeditingis one ofthe greatestinnovateinthe historyof science.Thank youfor listening.Acupuncture:magic needlesOneof themost famousChinese medicaltreatments isthe artofmagic needles,or Chineseacupuncture.lt wasdeveloped longago,perhaps as early as2000BCE.There isevidenceacupuncture datesback pressthe StoneAge,s tonetools calledbian wereused toareasof the body.acupuncture developed,the simplebian stoneswere replacedby stone needles.Eventually,metalneedles beganto appearand tookplace ofstoneneedles.These solidneedles aremade ofdifferentmetals,gold and silver.Some acupuncturiststoday stilluse goldandsilverneedles,but themajorhavenowswitched_stainless steelones.In additionto thechanges inmaterial,the shapesoftheneedleshave alsochanged time.origin,therewere ninedifferent kindsof needles,with variationsshape.Nowadays,the finesharpneedles measureusually between15and75millimetres lengthare stillused.most ofthe othershavebeen replacedbycomplexmedical instruments.So whathappens duringa visitthe acupunctureclinicFirst,theacupunctureexamines thepatient,lookat thepatients skinand tongue,listening tothe soundof hisor hervoiceand breathing,smelling hisor herbreath.Then the acupuncturist askssome questionsabout thepatientscondition andfeels hisor herpulse.This isaparticular importantstep accordingto theenergytheory behindacupuncture.The acupuncturist can checkthe pulsein threepositions eachwrist,and everyoneofthem isconnected witha majorbodyorgan.By checkingallthepositions theacupuncturistcanfind outenergy channeldoesznot haveenough energy.According tothe resultsofthecheck-up,theacupuncturistthen selectscertain pointson thebodycallacupuncturepoints.Needlespushinto theskin atthese pointsso thata healthproblem canbetreated.Up tonow,more than360acupuncture pointsidentify,eachlinkto adifferent partof thebody.Sometimes theneedles arepushed intopoints nearthe bodypartaffectby adisease,andsometimes intopoints thatare notso closeto it.Over theyears,acupuncture hasbeen usedto treata widevaryofhealthproblems,includeseverepains^blood pressureissues,stomachcomfort,sport injuriesand weightproblems.And ithas beenusedto treatmore thanjust physicalproblems-acupuncturists havediscovered thatthe treatmenthelpswith mentalproblems likedepression andanxiety too.Acupuncture hasalsoapplyto treatpeopleabusealcohol,tobacco ordrugs.acupuncture actuallyworks isnot clearlyunderstood.For example,there aredifferent theoriestrytoexplain howit easespain,but noagreementreach.One theoryexplainthisphenomenon suggeststhatacupuncture blockspain signalsreaching thebrain.Another theoryrelates acupuncturetheproductionof asubstance inthebodywhich canreduce pain.thecertainabout itsmedical basis,acupuncture hasbecome apopular formof treatment.As auniquecontributeof traditionalChinese medicine,acupuncture spreadto manyother Asiancountries,suchas Japan,asearlyas the6th century.lt wasintroduced tothe Westaround the16th century.In2010联合国教科文组织非物acupuncture wasincluded inthe UNESCOIntangible CulturalHeritage List质文化遗产名录.Today,acupuncture isrecognized asa symbolof traditionalChinese cultureandhas comeinto widespreaduse aroundthe worid.The WorldHealth Organizationrecommendsacupuncture agood treatmentforover100medical problems.doubts aboutits safetyhave graduallydisappeared,interest continuestogrow.。