人教新课标必修五_Unit1_Great_Scientists[全单元课件].ppt

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Unit1GreatscientistsWarmingup高二人教新课标版必修五 Whoishe?Whatishisachievement?AgreatscientistFatherofHybridRiceThemanwhoputsanendtohunger Whoarethey?Guessinggame Whoishe?Hehasmadeafamouskiteexperiment.Helearnedalotfromitandinventedlightningrod(避雷针).Heis…BenjaminFranklinNeverleavethatuntiltomorrow,whichyoucandotoday.今日事,今日毕。 Whoishe?Hemadethefirsttelescopeintheworld.Hisobservationsshowthattheearthmovesaroundthesun.Heis…GalileoGalileiYoucannotteachamananything.Youcanonlyhelphimfinditwithinhimself.你不可能把一切都教给一个人,你只能帮助他从内心去发现(和了解)事物。 1.Whichscientistdiscoveredthatobjectsinwaterareliftedupbyaforcethathelpsthemfloat?2.Whowroteabookexplaininghowanimalsandplantsdevelopedastheenvironmentchanged?3.Whoinventedthefirststeamengine?4.Whousedpeastoshowhowphysicalcharacteristicsarepassedfromparentstotheirchildren?5.Whodiscoveredradium?QuizMarieCurie[mз‘ri][’kjuзri]Archimedes[,a:ki'mi:di:z](阿基米德)CharlesDarwin[tʃɑ:lz]['dɑ:win]ThomasNewcomen汤玛斯·纽科门BritishGregorMendel孟德尔浸没液体中的物体所受浮力的大小等于被物体排开的液体所受的重力．即有：F浮=ρ液gV排 ArchimedesAncientGreek(287-212BC)Hewasamathematician(数学家).Hefoundthatifyouputanobjectintowater,thewaterpushestheobjectup.Itrisesandpartlyfloats.Theforceofthewaterpushingitupisthesameastheweightoftheobject.Givemeafulcrum[‘fʊlkrəm],I’mtoraisetheEarthfortheability!给我一个支点，我就能举起地球！ CharlesDarwinBritain(1808-1882)TheOriginofSpecies ThomasNewcomenHemadeasignificantcontributiontotheIndustrialRevolutionwithhisinventionoftheSteamengine. GregorMendel(G.J.孟德尔)Czech(1822-1884)Thefatherofgenetics MarieCuriePolishandFrench(1867-1934)Thepowerofradium 6.Whoinventedthewayofgivingelectricitytoeverybodyinlargecities?7.Whowasthepainterthatstudieddeadbodiestoimprovehispaintingofpeople?8.Whoinventedalamptokeepminerssafeunderground?9.Whoinventedtheearliestinstrumenttotellpeoplewhereearthquakeshappened?10.Whoputforwardatheoryaboutblackholes?ZhangHengStephenHawkingThomasEdison['tɒməs]['edɪsn]LeonardodaVinci[,liə'nɑrdo]['vinsi]HumphryDavy汉弗里·戴维爵士 ThomasEdisonAmerican(1847-1931)Geniusisonepercentinspirationandninety-ninepercentperspiration.天才就是百分之九十九的汗水加上百分之一的灵感。 TheInventionsofThomasEdisonPhonograph(留声机)Lightbulb(电灯泡)MotionPictures(电影) LeonardodaVinciItalian(1452-1519)Majorworks:VirginoftheRocksTheLastSupperMonaLisa LastSupperMonaLisa SirHumphryDavyBritish(1778-1829) theSafetyLamp ZhangHengChinese(78-139)seismograph StephenHawkingBritish(1942-)TheoreticalPhysicistABriefHistoryofTime JohnSnowDefeats“KingCholera”Pre-reading:Makeapredictionaboutwhatthistextwillbeaboutaccordingtothetitle. JohnSnowBritish(1813~1858)alegendary(传说中的)figureinthehistoryofpublichealth, 霍乱(cholera)，早期译作虎烈拉，是由霍乱弧菌所致的烈性肠道传染病(infectiousdisease)，解放后我国已消灭本病。霍乱为我国法定的甲级烈性传染病，要求在发现确诊或疑似病例后2小时内上报Thinkaboutotherinfectiousdiseasesyouhaveknown? ExtensiveReading1.Themainideaofthetext2.Readthewholetextandfinishexercise1inpage3JohnSnowdefeated“KingCholera”withthehelpofscientificresearch ScientificResearchBasicstepsofscientificresearch1.Findaproblem2.Makeaquestion3.Thinkofamethod4.Collectresults5.Analyseresult6.Findsupportingevidence7.DrawaconclusionWhythesestepsarenecessaryforscientificresearch? CarefulReadingFinishthechartFindaproblem2.Makeaquestion3.Thinkofamethod4.Collectresults5.Analyseresult6.Findsupportingevidence7.Drawaconclusion---------Whatcausescholera?--------Whichtheoryiscorrect?--------GatherinformationwhenanotheroutbreakhitLondonin1854----------Makeamaptofindoutwherepeoplediedordidnotdied----------Lookintothesourceofwaterandanalysethewater----------Findsupportingevidencefromtwootherdeaths---------Thepollutedwatercarriedthevirus SolutionRemovethehandlefromthepumpThesourceofallthewaterbeexamined3.Watercompanieswereinstructednottoexposedpeopletopollutedwateranymore. ExerciseFillingtheblankswithusefulwordsandexpressionsinthetextJohnSnowwasaveryexpertdoctorinLondon.Hethoughtaboutordinarypeople_____________cholera.Thereweretwotheorieshebecameinterestedin.Oneisthatcholera________intheair,theotheristhatpeople__________thisdiseaseintotheirbodieswiththeirmeals.JohnSnow_________thatthesecondtheorywascorrect,andhedeterminedtofindoutwhy.First,hemarkedonamapwhichgavehimavaluablecluethatmanyofthedeathswerenearthe__________inBroadstreet.Itseemedthatthewater___________.Next,JohnSnow__________thesourceofthewaterandfoundthatitcamefromtheriver________bythedirtywaterfromLondon.Afterthat,hefound_____________fromtwodeaths.Thenhewasableto_________withcertaintythat________carriedthevirus.exposedtomultipliedabsorbedsuspectedwaterpumpwastoblamelookedintopollutedannouncethewaterextraevidence OpenQuestion1.Afterreadingthewholetext,whatdoyouthinkaboutJohnSnow?2.CanyounamesomeotherscientistsnowadayslikeJohnSnow?3.Whatdoyouthinktheyhaveincommon? LanguagePoints1.attendvt&vi[ə'tend]①tobepresentatanevent(出席；参加)②totakecareofsb/sth(照顾；看护)attendon/tosb/sth③attendtosb/sthn.attendance出席，参加attendant服务员，侍者attender参加者2.expose[iks'pəuz]①toshowsththatisusuallyhidden(暴露)②toputsb/sthinadangeroussituation（使暴露在危险之下）exposesb/sthtosth③使接触，使体验Themeetingwasattendedby90%oftheshareholders(股东).Ihavesomeurgentbussinesstoattendto.Hesmiledsuddenly,exposingasetofamazingwhithteath.PeopleexposedtoSARSshouldbeseperatedWeshouldexposeourselvestomuchartandculture.AttendnowtowhatItellyou 3.absorbvt.[əb‘zɔ:b]①totakein(吸收液体、气体等)②interestsb(使全神贯注)词组：beabsorbedin被吸引，入迷4.suspectvt.[səs‘pekt]/n.[’sʌspect]①tohaveanideathatsthisprobablytrue(疑有，觉得)②tonottruststh(怀疑，感觉有问题，不信任)③嫌疑犯amurdersuspectPlantsabsorboxygen.Thisworkhadabsorbedhimformanyyears.JohnSnowsuspectedthatthesecondtheorywastrue.Isuspectedhermotives(动机)inofferingtohelp. 6.announce[ə'nauns]vt①totellpeoplesthofficially(发表、告知、宣布)②宣布某人的到来③显示；预告5.severeadj.[si'viə]①extremelybadorserious（非常严重的）②notkind（严厉的；严格的）adv.severelyAsevereearthquakehitWenchuanlastyear.Ithinkyouaretoosevereontheboy.ThegovernmentannounceditsneweconomicHisservantannouncedMrandMrsWhite.Warmsunshineannouncesthecomingofspring. cure:vt./n.①tomakeapersonorananimalhealthyagainafteranillness(治愈)curesbofsth②tomakeanillnessgoaway(治好)③amedicineormedicaltreatmentthatcuresanillness(药，药物)cureforsthExercise:Finishexercise1and2inpage4inyourtextbook.Instruct:vtinstructsbtodosthtotellsbtodosth,esp.inaformalorofficialwayn.instructionWillyoubeabletocurehim,doctor?Cholera,aseriousdiseasecausedmanydeathsinthepast,canbecurednowadays.Thecureforthisdiseasehasn’tbeenfoundyet.Youwillbeinstructedwheretogoassoonastheplaneisready. 1.putforward提出2.drawaconclusion得出结论3.be/getundercontrol在……控制下be/getoutofcontrol失去控制，不能操纵4.beabsorbedin专心5.betoblame应该受责备（用主动形式表示被动）blamesb.forsth.因某事责备某人6.inaddition也，另外，此外7.link...to...将…和…连接或联系起来8.dieof因…而死亡（内因）diefrom因…而死亡（外因） 1. JohnSnowwasawell-knowndoctorinLondon–sofamous,indeed,thatheattendedQueenVictoriatoeasethebirthofherbabies.约翰·斯诺曾经是伦敦一位著名的医生――他的确太负盛名了，所以维多利亚女皇生孩子时都是他去照料，帮助她顺利分娩。2. Buthebecameinspiredwhenhethoughtabouthelpingordinarypeopleexposedtocholera.但当他一想到要帮助患病的普通老百姓，特别是那些得了霍乱的患者时，他就感到很振奋。3. Neitheritscause,noritscurewasunderstood.人们既不知道它的病源，也不了解它的治疗方法。4. Heknewitwouldneverbecontrolleduntilitscausewasfound.他知道，在找到病源之前，疫情是无法控制的。 5. Hebecameinterestedintwotheoriesexplaininghowcholerakilledpeople.霍乱之所以能致人于死，当时有两种看法，斯诺对这两种推测都很感兴趣。6.Thesecondsuggestedthatpeopleabsorbedthisdiseaseintotheirbodieswiththeirmeals.第二种看法是在吃饭的时候人们把这种病毒引入体内的。7. Hebelievedinthesecondtheorybutneededtoprovehewascorrect.他相信第二种说法，但是需要证明他是正确的。8. Itseemedthatthewaterwastoblame.看来要归罪于饮用水了。9. ImmediatelyJohnSnowtoldtheastonishedpeopleinBroadStreettoremovethehandlefromthewaterpumpsoitcouldnotbeused.约翰·斯诺马上叫街上惊惶失措的老百姓拆掉水泵的把手，这样水泵就用不成了。 句子翻译练习8.被污染的水导致许多人死于霍乱。9.感染SARS病毒的人被隔离起来。（expose…to…）10.一座大桥连接着深圳和香港(link…to…)11.政府应该为错误的经济政策而受到谴责（betoblame）12.只有拆掉水泵的把手才能缓解疫情（Onlywhen…can…）13.哥白尼的理论正是我们的宇宙观建立的基础(onthebasisof).14.被怀疑的那个人决心找出真正的罪犯（criminal）.(bedeterminedto)15.老师建议我们在上课之前先预习课文（suggest） languagepoints thewayofdoingsth.=thewaytodo…“做…..的方法”Sheshowedusthewayofcleaningit.=Sheshowedusthewaytocleanit.她给我们示范清洗它的办法. 与way相关的短语:bytheway顺便说bywayof…通过……的方法loseone’sway迷路noway(俚语)没门,别想feelone’sway摸黑走,谨慎从事onone’swayto…在去…的路上inthisway=bythismeans=withthismethod用这种方法 Whoputforwardatheoryaboutblackholes?谁提出了“黑洞”的理论？Heputsforwardseveralinterestingplans.他提出了几项令人感兴趣的计划。It’sanexplanationoftenputforwardbyourfriend.这是我们的朋友经常提出的解释。putforward提出；建议；推荐 put相关短语putup建立;建造putupwith…忍受…… examine1)检查,审查,研讨;2)考试,考核3)盘问Theyexaminedourpassportsverycarefully.TheCongressexaminedandapprovedthedraftbudget.HeexaminedtheboysinEnglish.Hewasexaminedbythepolice.examination/examn.考试 1）conclusion作名词，意为“结束，结论”formone’sconclusion得出自己的结论make/drawaconclusion得出结论cometo/reach/arriveataconclusion得出结论bring...toaconclusion结束(完成)inconclusion最后 Itisprematuretomakethatconclusion.作出那种结论仍为时过早。IwillinconclusionsayafewwordsaboutmyvisittoTokyo.最后，我对我的东京之行说几句。 2）conclude作动词，“结束；断定；决定”。toconclude（作插入语）最后,作为总结(=tosumup)Toconclude,Ithinksmokingdoesmoreharmthangoodtous. analyse(analyze)v分析，分解analysisnmakeananalysisof分析(=analysesth) attendv.出席；参加；照顾；护理attendsb.照料、护理某人attendsth.参加（讲座、活动等）attendclass/alecture/ameetingattendancen exposev.1)expose….to….把……暴露于……之下（之中）Heexposeshisskintothesun.他把皮肤暴露在阳光下.beexposedto(暴露)2)揭露;揭发Heexposedtheirplot.他揭穿了他们的阴谋.Ithreatenedtoexposehim(tothepolice).我威胁要(向警察)揭发他. curen.&v.治愈；痊愈治愈；治疗可构成curesb.ofsth.句型 controlvt.统治，控制 2）n.控制，统治，掌握 Thedriver__________hiscaranditknockedintoatree.司机对车失去控制，车撞到树上。Thecarwas___________andranintoawall.车失去控制，撞到了墙上。MrBrownis___________theshop./Theshopis___________MrBrown.布朗先生管理这家商店。Themoneyis_______________MrBrown.钱财由布朗先生掌管。lostcontrolofoutofcontrolincontrolofinthecontrolofunderthecontrolof absorbvt.吸收(光，气体，知识等)；吸引Blackclothabsorbslight.黑布吸收光线。固定搭配：beabsorbedin=putone’sheartinto专注；聚精会神Theoldmanwascompletelyabsorbedinthebook.老人全神贯注地读这本书。absorb...into...吸收 blamev.责备；指责，归咎于blamesbforsth/doingsth因某事blamesthonsb把某事归咎于某人betoblame(forsth)应（为...）承担责任，该（为...）受责备accept/bear/taketheblameforsth对某事负责任put/laytheblame(forsth)onsb将某事归咎于某人 lookinto调查，了解，研究；朝……里面看Helooksintoherfacewithgreatinterest.他饶有兴趣地注视着她的脸。【考点聚焦】与one’sface/eyes等连用，表示“注视” 和look组成的其他短语lookaround/round/about环顾四周lookafter照顾；照料lookback回头看lookbackto/upon/on回顾；回想lookdownupon俯视；轻视lookfor寻求；寻找 lookforwardto(doing)盼望lookon旁观lookon/upon...as把……看作lookout往外看；注意；当心lookthrough透过……看；浏览lookup抬头看；查看 slowdown放慢速度,减速speedup加快速度 inaddition(to)此外；还WesawaMickeyMousecartooninadditiontothecowboymovie.我们除了看西部牛仔片之外还看了一个米老鼠动画片。【考点聚焦】在写作文时，此结构在罗列平行观点时，类似于：what’smore；moreover。 link...to...把……与……连接；把...跟...联系起来Fingerprintslinkedthesuspecttothecrime.指纹印把嫌疑犯与所犯罪行联系在一起。belinkedto【考点聚焦】同义词组：connect...with...与……有联系havesomethingtodowith...与……有关系 announcevt.1）tomakeknownpublicly发表，告知，宣布……ThenewswasannouncedtothepubliconTV.这则消息经由电视向大众宣布。 2）（事情）显示……；预示Thebrightflowersannouncedthatspringwashere.鲜艳的花朵显示春天已经来到。 instructsb…(not)todo…吩咐/指导/命令某人(不)做某事beinstructedtodosthinstructionn说明,须知,指令instructorn教练,讲师Heinstructedmetodeliverittoacustomer.他吩咐我把东西送去给顾客。Thoseboyswereinstructedtowaitthere.那些男孩被通知在那等。 contributev.贡献，捐助，捐献；投稿Itwasgenerousofhertocontributesuchalargesum.她很大方，捐助了这么大笔钱。SheaskedhimtocontributeanarticleonEuropeanaffairs.她约他写一篇有关欧洲情况的文稿。 contributesthtosb/sth捐款，捐助We_________________thepoor．我们捐赠衣物救济贫民。Hecontributedpoemstothemagazine．他投诗稿给杂志。contributedclothingto contributeto：为…作出贡献,为…撰稿,向…投稿,捐助,有助于,促进ManypeoplehadcheerfullycontributedtotheRedCross.许多人都欣然向红十字会捐款。Hiscarelessnesscontributedtotheaccident.他的粗心大意是造成这次事故的原因之一。Drinkcontributedtohisruin.饮酒促成他的毁灭。contributionn.贡献；捐献（物） besides,except和apartfrom用法之异同1．besides意为“除……以外(还包括)”BesidesJohn,wealsowentthere.除了约翰外，我们也去了那里。Whoelseheardofitbesidesyou?除了你外还有谁听说过此事。2．except意为“除……以外(不包括)”Hecleanedalltheroomsexceptthebathroom.除了洗澡间，他把所有的房间都清扫了。Ilookedeverywhereexcepthere.除了这里外，我找遍了所有地方。 3．apartfrom有两种含义：1）相当于besides.意为“除……以外（还包括）”Apartfrommymothertongue,Ispeakseveralforeignlanguagesaswell.除了母语外，我还会讲好几种外语。Hehasnootherinterests,apartfromhiswork.除了工作外，他别无其他兴趣。2）相当于except.意为“除……以外（不包括）”IlikeallthesubjectsapartfromEnglish.除了英语外，我喜欢所有学科。Theyallwenttoseethemovieexcepthim.除了他外，他们都去看电影了。 leadto通向AllroadsleadtoRome.条条大道通罗马。Canthisway_________________?这条路能到邮局吗?leadtothepostoffice 导致，引起_________________________disastrousconsequences.这样一个错误可能导致灾难性的后果。Suchamistakewouldperhapsleadto makesense有意义，有道理，讲得通Hedoesn’ttalkmuch,butwhathesaysmakessense.他话不多,但言之有理。makesenseofsth.理解.弄懂(不易理解的事物)Canyou_________________________________atall?你究竟能不能理解这篇文章的意思?makeanysenseofthisthisarticlemakenosense无意义，行不通Yourexplanationdoesn'tmakesense/makenosense.你的解释是没道理的 completelyadv.彻底地,完全地completionn.完成,结束complete(1)adj.完全的,彻底的Thepolicewereincompletecontrolofthesituation.(2)vt.完成,结束Thebuildingtooktwoyearstocomplete.Thenewlaboratorybuilding___________________.willbecompletednextFriday enthusiasticadj.beenthusiasticaboutsth./doingsth.热衷于，对…充满热情Hebecameenthusiasticaboutclassicalmusic.他变成了一个古典音乐迷。enthusiasmn.热情,热心enthusiasmforsth./fordoingsth.Hehasagreatenthusiasmforpersonalcomputers.他热衷于个人电脑。 cautiousadj.小心的,警慎的becautiousabout/ofsb/sth对...小心，谨慎Youshouldbecautiousofthestrangers.你应该小心提防陌生人。cautionn.小心,警慎withcaution留心，小心地对待疾病要小心.Diseaseshould_____________________.betreatedwithcaution GrammarPastpaticiple 1)在句中的位置：a.单个的过去分词作定语时，位于它所修饰的名词或代词前面过去分词作定语theaffectedpeopleabrokenheartalostdogarisensunabrokenglass受感染的人一颗破碎的心丧家之犬已升起的太阳被打破的玻璃杯 b.过去分词短语作定语：通常后置，其作用相当于定语从句。PeopleexposedtocholerathebookrecommendedbyJackthemachinesproducedlastyear=peoplewhowasexposedtocholera=thebookwhichwasrecommendedbyJack=themachineswhichwereproducedlastyear 2)所表示的时间过去分词作定语时，所表示的动作在谓语所表示的动作之前发生，(或者没有一定的时间性)。Theletterpostedyesterdaywillsoonreachhim.Haveyoureadthebookswrittenbytheyoungwriter？ 3)语法功能过去分词或过去分词短语作定语时，其功能相当于一个定语从句。1.ThestolenbikebelongstoJack.ThebikewhichwasstolenbelongstoJack.2.ThelecturegivenbyProfessorZhangisaboutenvironmentprotection.ThelecturewhichwasgivenbyProfessorZhangisabouttheenvironmentprotection. 过去分词与现在分词作定语的区别：thechangingworldthechangedworldboilingwaterboiledwaterfadingflowersfadedflowersadevelopingcountryadevelopedcountry（正在变化的）（变化了的）（正在沸腾的）（已经沸腾过的）(正在凋谢的)（已经凋谢的）(发展中的)（发达的） adrowningmanadrownedmanfallingleavesfallenleavesaretiredworkeranescapedprisoner快要淹死的人已经淹死的人正在飘落的树叶落叶退休工人逃犯 1.Doyouknowtheboy____(lie)underthebigtree?2.Thewoman_____(sell)vegetableshasgone.3.Thewheatiswateredbywater_____(bring)fromapond.4.Heisaleader________(respect)bythepeople. Attention：过去分词修饰something,everything,anything,nothing,somebody,nobody，those等不定代词时，要放在这些词后面。Nothingreported(inthenewspaper)interestedhim.Is there anything unsolved? There is noting changed here since I left this town.3及物动词的过去分词(done)与现在分词的被动式(beingdone)都可以表示“被动”，但前者多表示一个完成了的动作，而后者则表示一个正在进行的动作.theproblemdiscussedyesterdayTheproblembeingdiscussed II.过去分词做表语（predicative）1过去分词（短语）作表语时，其作用相当于adj.,说明的是主语的状态Allthewindowsarebroken.Allhopeisgone.Thisarticleiswellwritten.Heappearedmoresatisfiedwithmywork.常见作表语的过去分词有：disappointed,drunk,amused,frightened,married,excited,experienced,interested,confused,pleased,puzzled,satisfied,tired,worried等。 2过去分词做表语与现在分词做表语的区别ing作表语与-ed作表语有何区别？Theresultofthetestisdisappointing.Ifeeldisappointedwiththeresultofthetest.ThestoryisveryinterestingHeisinterestedinthebook.Whatasurprisingresult!Iamsurprisedatwhathesaid. 注意过去分词作表语时和动词的被动语态结构相似，但两者表达的意思明显不同，前者说明主语的特点及所处的状态，而后者强调动作。Theglassisbroken.Theglassisbrokenbymylittlebrother. Competethesentencesusingtherightformofthegivenverb.Ihadnothingtodo.Iwas__________(bore)andlonely.Jacklookedevenmore_______(amaze)thanhefelt.Theresultswerevery_____________(disappoint).Iwasthankedbythe_____________(satisfy)customer.Thegirl___________(dress)inredismydaughter.LastMondayourclasswentonan____________(organise)trip.boredamazeddisappointingsatisfieddressedorganised 汉译英1._____________(开水)2.________________(一个破碎的茶杯)3.three____________________(受伤的士兵)4.Welivedinthehouse__________________(我舅舅们修建的).5.Anymedicine________(服用)withouttheadviceofadoctorcancausetrouble.6.Wespenttwohoursdiscussingtheplan__________________(她制定的). 7.Mostofthepeople___________________(被邀请参加宴会的)werefamousscientists.8.Lessons_____________(易学的)aresoonforgotten.9.Thecomputercenter_________________(开办)lastweekispopularwiththestudents. ExercisesDon’tusewords,expressions,orphrases____onlytopeoplewithspecificknowledge.A.beingknownB.havingbeenknownC.tobeknownD.knownAswejoinedthebigcrowd,Igot____frommyfriendsA.separatedB.sparedC.lostD.missedCleaningwomeninbigcitiesusuallyget___bythehour.A.payB.payingC.paidD.topayTheOlympicGames,____in776B.C.,didnotincludewomenplayersuntil1912.A.firstplayingB.tobefirstplayedC.firstplayedD.tobefirstplayingDACC 5.Theresearchissodesignedthatonce___nothingcanbedonetochangeit.A.beginsB.havingbegunC.beginningD.begun6.Thetelevisionisa___machine.A.newly-inventedB.new-inventedC.newly-inventD.newly-invention7.___Englishisdifferentfrom____Englishinmanyways.A.Spoken,writtenB.Speaking,writtenC.Spoken,writingD.Speak,writeDAA 8.Theladysaidshewouldbuyagiftforherdaughterwiththe______.A.20dollarsremainedB.20dollarstoremainC.remained20dollarsD.remaining20dollars9.Pricesofdailygoods___throughacomputercanbelowerthansomestoreprices.A.areboughtB.boughtC.beenboughtD.buying10.MrSmith,____ofthe___speech,startedtoreadanovel.A.tired;boringB.tiring;boredC.tired;boredD.tiring;boringDBA