Unit 8 Detective stories-【同步拓展阅读】2023-2024学年九年级上册英语（牛津译林版）解析版

第页Unit8DetectivestoriesUnit8Detectivestories必备知识重点词汇单词：missing,murder,medium,untidy,truth,guess,lie,somewhere,contact,wound,enemy,single,suppose,only,report,breathe,heavily,reward.couple,probably,boss,hurry,wealth,prison,safety,lock,shut,guard,theft,steal短语：1.gomissing不见了2.makenotes做记录3.mediumheight中等身高4.tellthetruth说实话5.findout找出,查明6.somewhereclse别的地方7.asksbtodosth要求某人做某事8.bleedtodeath流血而死9.beguiltyof犯有……罪10.bechargedwith被指控……11.breakinto强行闯入12.leadto导致13.besureofsth确信某事14.havesomethingtodowith与……有关15.turnout原来是16.havenothingtodowith与……无关17.beinahurrytodosth匆忙做某事18.guardagainststh防范,提防(某事)19.looksbup拜访某人20.glanceatsb朝某人看了一眼21.getalong/onwith与……和睦相处核心语法限制性定语从句和关系代词必备句型doyouthink作为插入语Whodoyouthinkisnottellingthetruth?你认为谁没说实话呢?2.Itturnedoutthat结果是原来是Well,itturnedoutthathehadnothingtodowiththiscase.嗯，结果是他与这个案子无关hadbetter(not)dosth最好(不)做某事Andwe'dbettershutallthewindowstoo.我们最好把所有的窗户也关上。语篇侦探故事；推理判断表达完成一个侦探故事语言能力能听懂有关警察询问嫌疑犯的对话;能谈论安全防范措施;能读懂有关悬疑案的语篇。能编写一则侦探故事或续写故事的结尾。引言解读Thedetectiveandhiscriminalwearversionsofthesamemask.–JaneRoberts释义：“侦探和他的罪犯戴着同一个面具。”–简·罗伯茨启示：侦探和罪犯之间除了法律和勇气，更多的是道德和逻辑的博弈。我们在欣赏侦探小说的同时，也可以尝试发现美好的品质，和他们在博弈的过程中所呈现的逻辑。名句积累1.Manyinvestigatorsfeeluneasystatinginpublicthattheoriginoflifeisamystery,eventhoughbehindcloseddoorstheyadmittheyarebaffled.许多调查人员在公开场合表示生命起源是个谜，尽管他们私下承认自己很困惑，但他们对此感到不安。2.Theinstanttheysaysomethingyoudon'texpectoralreadyknow,youshoulddropintodetectivemode.一旦他们说了一些你意想不到或已经知道的话，你就应该进入侦探模式。3.Toreadofadetective'sdaringfinesseoringeniousstratagemisararejoy.读到一个侦探大胆的技巧或巧妙的策略是一种难得的乐趣。4.Readlikeadetectiveandwritelikeaconscientiousinvestigativereporter.像侦探一样读书，像认真的调查记者一样写作。5.Thecriminalisthecreativeartist;thedetectiveonlythecritic.罪犯是有创造力的艺术家；侦探只是评论家。主题探究在“人与社会”的主题下，作者介绍了自己创作悬疑小说的背景和这部小说的大致内容。旨在帮助学生客观地了解作者的创作经历和小说的梗概。语篇品读There’snothingquitelikeamurdermystery.Learningallthejuicysecretsbehindthesuspects,flippingthepageandrevealingaplottwist,comingupwiththeoriesasyouread,stayingupwaytoolatetofindoutifyou’reright…Iloveitall.WhenIsetouttowriteKillerContent—mythirdnovelbutmyfirstmurdermysteryorthriller—oneofmymaingoalswastocreatethissortofexperienceformyfuturereaders.KillerContentisamurdermysterysetinahouseoffamousteenageTikTokers.Thesixmembersofthehouseseemtohaveitall—millionsoffollowers,lucrativecontentdeals,strikinggoodlooks.Butbehindtheirperfectedsocialmediaimage,therearehiddensecrets.Whenamemberofthehouseshowsupdeadintheinfinitypool,therestofherfamousroommatesimmediatelybecomesuspects.AsIpreparedforthebooktoreleaseonNov.30,IgottothinkingabouttheteenmurdermysteriesthatIhavelovedandwhichhavepuzzled,frightened,exhilarated,andinspiredmeovertheyears.Iwantedtoshareafewofmyfavoritesinthislist.全文翻译没有什么能比得上谋杀之谜了。了解嫌疑人背后所有有趣的秘密，翻页并揭示情节转折，边读边想出理论，熬夜不知道自己是否正确……我喜欢这一切。当我开始写《杀手内容》时——这是我的第三部小说，也是我的第一部谋杀悬疑或惊悚片——我的主要目标之一是为我未来的读者创造这种体验。《杀手内容》是一部以著名青少年TikTokers的房子为背景的谋杀悬疑片。众议院的六名成员似乎拥有一切——数百万粉丝，利润丰厚的内容交易，引人注目的美貌。但在他们完美的社交媒体形象背后，隐藏着一些秘密。当房子里的一个成员死在无边泳池里时，她的其他著名室友立即成为嫌疑人。当我为11月30日出版的这本书做准备时，我开始思考我喜欢的青少年谋杀谜团，这些年来，这些谜团让我感到困惑、恐惧、兴奋和鼓舞。我想在这个列表中分享一些我的最爱。词汇积累1.mysteryn.神秘2.revealv.展示3.theoryn.理论4.setouttodosth.开始着手做某事5.strikingadj.引人注目的6.showup出场，露面7.releasev.释放，出版8.inspirev.激励；鼓舞；启发拓展阅读Passage1主题语境主题群话题词数建议用时推荐指数人与社会艺术小说推理家阿加莎·克里斯蒂急中生智的有趣经历2877min★★★★☆AgathaChristieisundoubtedlyconsideredqueenofthedetectivestory.Therefore,manypeople1hercreations-HerculePoirot,afamousBelgiandetectiveandMissMarple,anoldladywhoisalsoanamateurdetective.AsIamabig2ofAgathaChristie,letme3withyouaninterestingstoryabouther.Thefamouswriterneverforgotthatnightwhenshemetarobbermanyyearsago.Thatevening,shewas4toabirthdaypartywhichlasteduntil2o’clockinthemorning.Agathawalkedinthe5streetalone.Suddenlyfromtheshadowofadarkbuildingatallmanwithasharpknifeinhisrighthandranoutather.“Goodmorning,lady”,themansaidina(n)6voice.“Idon’tthinkyouwishtodiehere!”“Whatdoyouwant?”Agathaasked.“Yourearrings.7yourearrings!”Agathasuddenlyhadabrightidea.Shetriedtocoverhernecklacewiththecollarofhercoatwhilesheused8handtogetbothofherearringsandthenshequicklythrewthemontheground.“Takethemandletmego,”shesaid.Therobbersawthatthegirldidn’tcarefortheearringsatall,onlytryingtoprotectthe9.Hethoughtthenecklacewouldcostmore,sohesaid.“Givemeyournecklace.”“Oh,sir.It’snotworth10.Pleaseletmekeepit.”“Stoptalkingrubbish.Quick!”Withshakyhands,Agathagavehimhernecklace.11therobberdisappeared,shepickedupherearringsandranasfastasshecouldtooneofherfriends.12,theearringscost480poundsandthenecklacetherobberhadtakenawaycostonlysixpounds.1．A．falloff B．fallinlovewith C．fallfrom D．falldown2．A．fan B．partner C．friend D．enemy3．A．help B．tell C．argue D．share4．A．instructed B．invited C．introduced D．invented5．A．quiet B．noisy C．clean D．dirty6．A．high B．low C．excited D．calm7．A．Puton B．Takeout C．Takeoff D．Putoff8．A．other B．theother C．another D．others9．A．herself B．earrings C．collar D．necklace10．A．little B．less C．much D．more11．A．Until B．Before C．Assoonas D．While12．A．Inshort B．Inall C．Ingeneral D．Infact【答案】1．B2．A3．D4．B5．A6．B7．C8．B9．D10．C11．C12．D【导语】本文主要介绍了小说推理家阿加莎·克里斯蒂一次急中生智的有趣经历。1．句意：因此，很多人都爱上了她的作品——比利时著名侦探赫尔克里·波洛和业余侦探老妇人马普尔小姐。falloff摔倒；fallinlovewith爱上；fallfrom摔倒；falldown从……上掉下来。根据“AgathaChristieisundoubtedlyconsideredqueenofthedetectivestory.”可知，很多人喜爱她的作品；故选B。2．句意：我是阿加莎·克里斯蒂的忠实粉丝，我想和大家分享一个关于她的有趣故事。fan粉丝；partner搭档；friend朋友；enemy敌人。根据“youaninterestingstoryabouther”可知，是阿加莎·克里斯蒂的忠实粉丝；故选A。3．句意：我是阿加莎·克里斯蒂的忠实粉丝，我想和大家分享一个关于她的有趣故事。help帮助；tell告诉；argue争论；share分享；。根据“aninterestingstory”可知，分享故事；故选D。4．句意：那天晚上，她被邀请参加一个持续到凌晨2点的生日聚会。instructed指导；invited邀请；introduced介绍；invented发明。根据“abirthdayparty”可知，被邀请参加派对；故选B。5．句意：阿加莎独自走在寂静的街道上。quiet安静的；noisy吵闹的；clean干净的；dirty脏的。根据“until2o’clockinthemorning”可知，凌晨的街道很安静；故选A。6．句意：那人用平静的声音说。high高的；low低的；excited兴奋的；calm平静的。根据“Goodmorning,lady”可知，能向对方问好，说明很平静；故选B。7．句意：摘下你的耳环。Puton穿上；Takeout拿出来；Takeoff脱下；Putoff推迟。根据“getbothofherearringsandthenshequicklythrewthemontheground”可知，摘下耳环；故选C。8．句意：她试图用衣领盖住项链，另一只手去拿两只耳环，然后迅速把它们扔在地上。other其他的；theother两者中的另一个；another另一个；others其他人或事。根据“hand”可知，另一只手，用theotherhand；故选B。9．句意：强盗看到女孩根本不喜欢耳环，只是想保护项链。herself她自己；earrings耳环；collar衣领；necklace项链。根据“Hethoughtthenecklacewouldcostmore”可知，想保护项链；故选D。10．句意：它不值钱。little几乎没有；less更少；much多；more更多。根据“It’snotworth”可知，不值钱，故选C。11．句意：强盗一消失，她就拿起耳环，以最快的速度跑向她的一个朋友。Until直到；Before在……之前；Assoonas一……就；While当……时。根据“shepickedupherearringsandranasfastasshecouldtooneofherfriends”可知，强盗一走，她就向朋友家走去；故选C。12．句意：事实上，这对耳环花了480英镑，而劫匪偷走的项链只花了6英镑。Inshort总而言之；Inall总计；Ingeneral总的来说；Infact事实上。根据“theearringscost480poundsandthenecklacetherobberhadtakenawaycostonlysixpounds”可知，实际上耳环更贵，故选D。Passage2主题语境主题群话题词数建议用时推荐指数人与社会艺术勇敢的作家智斗劫匪2998min★★★★☆AgathaChristieisundoubtedlyqueenofthedetectivestory.Manypeoplehavefalleninlovewithhercreations—HerculePoirot,afamousBelgiandetectiveandMissMarple,anoldladywhoisalsoanamateur(业余的)detective.AsIamabigfanofAgathaChristie,letmesharewithyouaninterestingstoryabouther.Thefamouswriterneverforgotthatnightwhenshemetarobbermanyyearsago.Thatevening,shewasinvitedtoabirthdaypartywhichlasteduntil2o’clockinthemorning.Agathawalkedinthequietstreetalone.Suddenlyfromtheshadowofadarkbuildingatallmanwithasharpknifeinhisrighthandranoutather.“Goodmorning,lady,”themansaidinalowvoice,“Idon’tthinkyouwishtodiehere!”“Whatdoyouwant?”Agathaasked.“Yourearrings.Takethemoff!”Agathasuddenlyhadabrightidea.Shetriedtocoverhernecklacewiththecollar(衣领)ofhercoatwhilesheusedtheotherhandtotakeoffbothofherearringsandthenshequicklythrewthemontheground.“Takethemandletmego,”shesaid.Therobbersawthatthegirldidn’tcarefortheearringsatall,onlytryingtoprotectthenecklace.Hethoughtthenecklacewouldcostmore,sohesaid,“Givemeyournecklace.”“Oh,sir.It’snotworthmuch.Pleaseletmekeepit.”“Stoptalkingrubbish.Quick!”Withshakyhands,Agathatookoffhernecklace.Assoonastherobberdisappeared,shepickedupherearringsandranasfastasshecouldtooneofherfriends.Infact,theearringscost480poundsandthenecklacetherobberhadtakenawaycostonlysixpounds.13．WhatdoesAgathaChristiewrite?A．Sciencefiction. B．Fairytales. C．Detectivestories. D．Newsreports.14．Thebirthdayparty________o’clockinthemorning.A．wasoverat2 B．didn’tendafter2 C．didn’tendat2 D．endedbefore215．Agathaneverforgotthenight,forsheA．wasrobbedofherearrings B．hadagoodtimeatthebirthdaypartyC．wasrobbedofhernecklace D．wasrobbed,butshefooledtherobber16．Theitalicizedword“it”inthepassagerefersto________.A．thenecklace B．oneoftheearrings C．thecoat D．theknife17．WhichofthefollowingisNOTtrue?A．Agathapretendednottocareforherearringsandthrewthemtotheground.B．Agathapretendedtocareforhernecklaceandcovereditwiththecollar.C．Agathadidn’treallycareforhernecklacebecauseitwasmuchcheaperthantheearrings.D．Agathareallycaredforherearringsbecausetheyweregiftsfromherfriends.【答案】13．C14．A15．D16．A17．D【导语】本文介绍了一位聪明勇敢的作家。这位作家用小计谋让劫匪只抢走了6英镑的项链，而480英镑的耳环完好无损。13．细节理解题。根据“AgathaChristieisundoubtedlyqueenofthedetectivestory.”可知，她写侦探小说。故选C。14．细节理解题。根据“Thatevening,shewasinvitedtoabirthdaypartywhichlasteduntil2o’clockinthemorning.”可知，聚会一直持续到凌晨2点。故选A。15．细节理解题。根据“Thefamouswriterneverforgotthatnightwhenshemetarobbermanyyearsago.”可知，Agatha不会忘记那个晚上是因为她被抢劫了，但是她骗过了劫匪。故选D。16．推理判断题。根据“‘Givemeyournecklace.’‘Oh,sir.Itdoesn’tcostmuch.Pleaseletmekeepit.’”可知，“it”指项链。故选A。17．推理判断题。根据“shepickedupherearringsandranasfastasshecouldtooneofherfriends.Infact,theearringscost480poundsandthenecklacetherobberhadtakenawaycostonlysixpounds”可知，耳环花了480英镑，而强盗带走的项链只花了6英镑。所以选项D“阿加莎非常喜欢她的耳环，因为那是她朋友送她的礼物”表述错误，故选D。教材语篇梳理Thepolicearestillworkingatthesceneofthecrimetofindoutwhetherhewaskilled1.________elseandthenbroughttoWestTown,orkilledattheplacewherehewas2..Thepolicefoundthevictimwasonce3.ofcomputercrimes.Theyarenotsureifthismadethevictimany4..Theysupposethatheknewhismurderer.Thepolicenowhaveonlyone5..ThemanwasseenrunningdownCornStreetat10p.m.lastnight.Hewas6.heavilyandhad7.onhisshirtatthattime.However,themaninsistedthathewasnotguiltyandcould8.thathewassomewhereelseatthetimeofthecrime.【答案】1.somewhere;2.found3.guilty;4.enemies5.suspect;6.breathing;7.blood;8.prove课文语法填空Earlytoday,thebodyofa25-year-oldman1._____________(find)inWestTown.Thepolicehaveconfirmedthatthevictimwasacomputerengineer.Hewaslast2._____________(see)leavinghisofficeinEastTownatabout7p.m.yesterday.Hesaidhewasgoingtovisithisparents.Thepolicebelieve3._____________themurdertookplacebetween9p.m.lastnightand1a.m.thismorning.Theyarestillworkingatthesceneofthecrime4._____________(find)outwhetherthevictimwaskilledsomewhereelseandthenbroughttoWestTown,orkilledattheplacewherehewasfound.“We’reaskinganyone5._____________sawanythingunusualnearCornStreetlastnighttocontactus,”saidDetectiveLu,WestTown’schiefdetective.“Thevictimwaswoundedwithaknifeand6._____________(bleed)todeathasaresult.We’renowcheckingthesceneformoreclueswhichwillhelpsolvethecase.”Thepolicearealsowonderingifthevictimhadanyenemies.Hewassingle.Hehadmanyfriendsandawell-paidjob.However,accordingtotherecord,hewasguiltyofcomputercrimesinthepast.“Hewaschargedwithbreakingintoseveralcomputer7._____________(system)overthelastyear,”saidDetectiveLu.“We’renotsure8._____________thismadehimanyenemies.Wesupposethatthevictimknewhismurderer.”Sofar,theonlysuspectisashortthinmanwhowasseenrunningdownCornStreetat10p.m.lastnight.Awitnessreportedthathewasbreathing9._____________(heavy)andhadbloodonhisshirt.However,thesuspectcouldprovethathewassomewhereelseatthetimeofthecrimeandinsistedthathewasnotguilty.Thevictim’sparentshaveofferedarewardof¥50,000foranyinformationthatleadstothearrestofthe10._____________(murder).Anyonewhocanprovideusefulinformationshouldcontactthepolice.【答案】1.wasfound2.seen3.that4.tofind5.who6.bled7.systems8.whether/if9.heavily10.murdererHowtoMakeanInference如何推理判断Step1:IdentifyanInferenceQuestionStep2:TrustthePassageStep3:HuntforCluesStep4:NarrowDowntheChoicesPassage1主题语境主题群话题词数建议用时推荐指数人与社会艺术夏洛克·福尔摩斯以及华生医生2475min★★★★☆（2023·广东广州·广州市真光中学校考二模）阅读下面短文，掌握其大意，然后从各题所给的A、B、C和D项中选出最佳选项。SherlockHolmeswasgreatatsolvingcrimes(犯罪).Nocrimewastoostrangeor1forhimtosolve.Hecouldtakeonelookatacrimesceneandknowwhathappened.Heusedhissharpeyestolookforandlookatthe2details.Hedirectedthatlookatthecrimesceneaswellaseverybodyandeverything.Then,heusedhisknowledgeandevensharpermindto3theanswer.Holmesneverguessed.Healsousedsciencetohelphimcollectandexaminehardevidence,suchas4frompeople’sfeetandfingers.Thatwasn’tcommonforthe1800s.However,thevastmajorityofpolicestationsaroundtheworldstilluseSherlockHolmes’5ofhandlingcases.Wecan’tmentionSherlockHolmeswithoutalso6Dr.JohnH.Watson.Hewasaretiredarmyofficer,andhe7theroomsandtherentat221BBakerStreelwithHolmes.Overtime,WatsonbecamemorethanjustaflatmatetoHolmes.Infact,heplayedanimportantrole—hewasHolmes’spartnerinsolvingcrimes.Theyworkedwelltogether,andHolmes8Watson’shelpandfriendship.Wealsowouldn’tknowmuchaboutHolmeswithoutWatson.Thedoctorrecordedhowtheprivatedetectivesolvedeachcrime.Afterthat,hewrote9aboutthem.Hedidthatbecausehedidn’twantthepolicetotakealltheadvantagesofHolmes’swork.So,weshould10thankDr.WatsonforbringingusSherlockHolmes.1．A．humorous B．difficult C．lifeless D．silly2．A．brightest B．safest C．smallest D．clearest3．A．copydown B．carefor C．findout D．resultin4．A．smells B．shoes C．colors D．prints5．A．experiences B．stories C．methods D．dreams6．A．talkingabout B．askingfor C．dealingwith D．agreeingwith7．A．compared B．shared C．mixed D．connected8．A．dependedon B．appliedfor C．gaveup D．turneddown9．A．posters B．notices C．advertisements D．stories10．A．carefully B．really C．hopefully D．luckily【答案】1．B2．C3．C4．D5．C6．A7．B8．A9．D10．B【导语】本文主要介绍了夏洛克·福尔摩斯以及华生医生。1．句意：对他来说，没有什么案子是太奇怪或太难侦破的。humorous幽默的；difficult困难的；lifeless无生命的；silly愚蠢的。根据“SherlockHolmeswasgreatatsolvingcrimes(犯罪).”可知，对于福尔摩斯来说破案并不难，故选B。2．句意：他用锐利的眼睛去寻找和观察最小的细节。brightest最明亮的；safest最安全的；smallest最小的；clearest最清楚的。根据“sharpeyes”结合常识可知，破案要注意最小的细节，故选C。3．句意：然后，他用他的知识和更敏锐的头脑找到了答案。copydown抄下来；carefor关心；findout发现；resultin导致。根据“Then,heusedhisknowledgeandevensharpermindto...theanswe”可知，是指发现案件的答案，故选C。4．句意：他还利用科学来帮助他收集和检查确凿的证据，比如人们脚上和手指上的指纹。smells气味；shoes鞋子；colors颜色；prints指纹。根据“feetandfingers”可知，是指手脚的指纹，故选D。5．句意：然而，世界上绝大多数警察局仍然使用夏洛克·福尔摩斯的方法来处理案件。experiences经历；stories故事；methods方法；dreams梦想。根据“policestationsaroundtheworldstilluseSherlockHolmes’...ofhandlingcases.”可知，是指现在很多警察局仍然使用福尔摩斯的方法来处理案件。故选C。6．句意：提到夏洛克·福尔摩斯，我们就不能不提到约翰·H·华生医生。talkingabout谈论；askingfor请求；dealingwith处理；agreeingwith同意。根据“Wecan’tmentionSherlockHolmeswithout”可知，提到了福尔摩斯，就要谈论到华生医生，故选A。7．句意：他是一名退休军官，他和福尔摩斯一起住在贝克街B号221号。compared比较；shared分享；mixed混合；connected连接。根据“theroomsandtherentat221BBakerStreelwithHolmes.”可知，他和福尔摩斯分享房间，故选B。8．句意：他们合作得很好，福尔摩斯依靠华生的帮助和友谊。dependedon依靠；appliedfor申请；gaveup放弃；turneddown拒绝。根据“Watson’shelpandfriendship.”结合选项可知，应该是依靠华生的帮助和友谊。故选A。9．句意：在那之后，他写了关于它们的故事。posters海报；notices布告；advertisements广告；stories故事。根据“Wealsowouldn’tknowmuchaboutHolmeswithoutWatson.Thedoctorrecordedhowtheprivatedetectivesolvedeachcrime.”可知，华生医生写下了福尔摩斯破案的故事，故选D。10．句意：所以，我们真的应该感谢华生医生给我们带来了夏洛克·福尔摩斯。carefully认真地；really真正；hopefully有希望地；luckily幸运地。根据“weshould...thankDr.WatsonforbringingusSherlockHolmes.”结合“Hedidthatbecausehedidn’twantthepolicetotakealltheadvantagesofHolmes’swork.”可知，我们真的应该感谢华生医生，因为没有他，我们不可能知道福尔摩斯的破案过程，故选B。Passage2主题语境主题群话题词数建议用时推荐指数人与自我方法与哲理如何通过观察来寻找证据3698min★★★★☆（2020上·江苏镇江·九年级统考阶段练习）Haveyoueverwonderedhowweknowthethingsthatweknow?Howdoweknow,forexample,thatthestarsarereallyhugeballsoffireliketheSunandveryfaraway?AndhowdoweknowthattheEarthisasmallerballturningroundoneofthosestars,theSun?Thekeytothesequestionsis“evidence”,whichmeansthefacts,signsorobjectsthatmakeyoubelievesomethingistrue.Sometimesevidencemeansactually(实际上)seeing(orhearing,feeling,smelling...)thatsomethingistrue.AstronautshavetravelledfarenoughfromtheEarthtoseewiththeirowneyesthatitisround.Sometimesoureyesneedhelp.The“eveningstar”lookslikebrighttwinkleinthesky,butwithatelescope(望远镜)youcanseethatitisabeautifulball.Somethingthatyoulearnbydirectseeing(orhearingorfeeling...)iscalledanobservation.Oftenevidenceisn’tjustobservationonitsown,butobservationalwayshidesatthebackofit.Ifthere’sbeenamurder,oftennobody(exceptthemurdererandthedeadperson!)actuallyobservedit.Butdetectivescangathertogetherlotsofotherobservationswhichmayallpointtowardsthesuspect.Ifaperson’sfingerprintsmatchthosefoundonaknife,thisisevidencethathetouchedit.Itdoesn’tprovethathedidthemurder,butitcanhelpwhenit’sjoinedupwithlotsofotherevidence.Prediction(预测)helpstolookforevidence.Scientistsmakeaguessaboutwhatmightbetrue.Forexample,if