真题阅读逐篇直播-2019笔记

2009-

@酱爆茄词汇、解题单方法总结段落分析解题思

正文、题先题后文，只看题干，不看选项，预测文Inparagraphs1and2,thetextshows PTKisused

语篇分1-2题：PTK是什3-4题：PTK有什么缺5题：直接可以选B，同义替 28.Skepticalobserversbelievethatancestrytestingfails .怀疑即否定，讨论缺 介绍PTK，再说它的问

Inthelastparagraph,aproblemcommercialgenetictestingfacesAnappropriatetitleforthetextismostlikelyto 第一

.讨论

细节：只出现过一次（次要信息

Itisawisefatherthatknowshisownchild,buttodayamancanboosthispaternal(fatherly)wisdom—oratleastconfirmthathe’sthekid’sdad.Allheneedstodoissout$30forpaternitytestingkit(PTK)athislocaldrugstore—andanother$120togettheresults.第二Morethan60,000peoplehavepurchasedthePTKssince eavailablewithoutprescriptionslastyears,accordingtoDougFogg,chiefoperatingofficerofIdentigene,whichmakestheover-the-counterkits.MorethantwodozencompaniessellDNAtestsdirectlytothepublic,ranginginpricefromafewhundreddollarstomorethan$2500.

反复强调PTK是容易获取@主旨：多次重复（重要信息 26.Inparagraphs1and2,thetextshows easy flexibilityinpricing×①价格是DNA测试，问的是PTK②价格只是细节、次要信

successfulpromotion商品促爆popularitywith爆第三 子Amongthemostpopular:paternityandkinshiptesting,whichadoptedchildrencan子tofindtheirbiologicalrelativesandfamiliescanusetotrackdownkidsputupforadoption.DNAtestingisalsothelatestrageamongpassionategenealogists—andsupportsbusinessesthatoffertosearchforafamily’sgeographicroots |PTKisused |locateone’sbirth promotegenetic @identifyparent-childkinship@酱第四酱Mosttestsrequirecollectingcellsbyswabbingsalivainthemouthandsendingitto爆companyfortesting.Alltestsrequireapotentialcandidatewithwhomtocompare爆第五子 Butsomeobserversareskeptical.“Thereisakindoffalseprecisionbeinghawkedbypeopleclaimingtheyare ngancestrytesting,”saysTroyDuster,aNewYork子Universitysociologist.Henotesthateachindividualhasmanyancestors—numberinginthehundredsjustafewcenturiesback.Yetmostancestrytestingonlyconsidersasinglemationaboutonlyoneortwoancestors,eventhough,forexample,justthreegenerationsbackpeoplealsohavesixothergreat-grandparentsor,fourbt开头，代表这句话是本段的中心主旨。后面的信息和第一句逻辑相同，优先考虑因果逻辑，后面都是在解释原因。（类似于观点和例子、实验结论和试验过程）分 阅读解析的第1|选项和题干一起读，同义替换

mitochondrialDNA,whichispasseddownonlyfrommothers.ThisDNAcanrevealgeneticinformationaboutonlyoneortwoancestors,eventhough,forexample,justthreegenerationsbackpeoplealsohavesixothergreat-grandparentsor,fourgenerationsback,14othergreat-great-grandparents.

本题考的是词汇

Skepticalobserversbelievethatancestrytestingfails @tracedistant@fullyusegenetic酱achievetheclaimedaccuracy√选项和题干都有同义替酱第六一定是符合主旨的串联题干、文章本文总

Criticsalsoarguethatcommercialgenetictestingisonlyasgoodasthe 茄collectionstowhichasampleiscompared.Databasesusedbysomecompanies茄子relyondatacollectedsystematicallybutratherlumptogetherinformationfromdifferentresearchprojects.ThismeansthataDNAdatabasemayhavealotofdatafromsomeregionsandnotothers,soa ’stestresultsmaydifferdependingonthecompanythatprocessestheresults.Inaddition,thecomputerprogramsacompanyusesto子estimaterelationshipsmaybepatentedandnotsubjecttopeerreviewor |Inthelastparagraph,aproblemcommercialgenetictestingfaces disorganizeddatacollection√disorganized=not databasebuildingexcessivesamplelackofpatentAnappropriatetitleforthetextismostlikelyto ForsandAgainstsofDNATesting提到支持的观DNA