2020版高考英语新设计一轮复习外研全国版讲义必修1Module5ALessoninalab

(一)课前自主学习Ⅰ.阅读单词——————知其意1．liquidn．[纵联1] 液体2．contractvi. 收缩3．substancen. 物质4．oxygenn. 氧气5．rustvi. 生锈6．partialadj. 部分的；局部的7．steamn. 蒸汽；水汽8．flamen. 火焰9．dissolvevi. 溶解；分解；分离Ⅱ.重点单词——————写其形1．floatvi. 漂浮2．boilvt. 煮；煮沸3．facilityn. (常作复数)设备；工具4．departmentn. (大学的)科、系5．aimn. 目标；目的6．ordinaryadj. 普通的；平常的7．stagen. 阶段；时期8．formvi. 形成9．lecturen. 演讲Ⅲ.拓展单词——————通其变1．expandvi.膨胀；扩展；发展→expansionn．膨胀；扩大[纵联2]2．mixturen．混合物→mixv．(使)混合[纵联3]3．electricityn．电→electricadj.电的；用电的→electricaladj.与电有关的；用电的；电气化的→electronicadj.电子的4．conclusionn．结论→concludevt.得出结论；使结束5．reactvi.(化学)反应→reactionn．反应6．equipmentn．设备；装备→equipvt.装备；配备7．balancen．天平；平衡→balancedadj.平衡的8．astonishedadj.吃惊的；惊愕的→astonishingadj.令人吃惊的→astonishvt.使吃惊→astonishmentn．惊奇①liquidn．液体 ②fluidn．流体③solidn．固体 ④gasn．气体；燃气⑤steamn．蒸汽；水汽 ⑥semiliquidn．半流体纵联2.“扩展”动词全接触①expand膨胀；扩展 ②enlarge扩大③spread扩展；蔓延 ④prolong延长⑤extend延伸；延续 ⑥broaden扩大纵联3.­ture结尾名词全扫描①mixture混合物 ②furniture家具③architecture建筑 ④departure出发；离开⑤signature签名；签字 ⑥culture文化单元话题——实验与学习子话题1实验研究①laboratoryn．实验室 ②experimentn．实验③researchn．研究 ④analyzevt.分析⑤observev．观察 ⑥measurev．测量；估量⑦summaryn．概要；总结 ⑧acquirevt.获得；学到子话题2学习过程①reviewv．复习 ②preparationn．准备③explorev．探索 ④arguev．争论；辩论⑤debatev．争论；辩论 ⑥determinationn．决心⑦assessvt.评定；评估 ⑧previewvt.预习⑨practicen．练习 ⑩explanationn．解释子话题3学习效果①papern．论文 ②masterv．掌握③effectn．影响；效果 ④rewardvt.奖励⑤markn．分数 ⑥degreen．学位⑦scholarshipn．奖学金 ⑧improvev．提高；改善[学考对接·活学活用]高考采撷(一)阅读中的词汇应用1．(2017·江苏高考阅读D)Humanbeingswillcontinuetoadapttothechangingclimateinbothordinary❶and❷(astonish)ways.Butthemostsensibleform❸ofadaptationissurelytoadaptourenergysystemstoemitlesscarbonpollution.Afterall,ifweadaptinthatway,wemayavoidtheneedtochangeinsomanyothers.①写出ordinary在句中的含义：普通的；平常的，其同义词有common,usual等。②用astonish的正确形式填空：astonishing，该词的另一种形容词形式为：astonished，常用来表示“感到吃惊的”③选择form在句中的含义：__C__A．形成B．表格C．方式D．外形2．(2011·江苏高考阅读C)Toproduce❶(electric)onalargescale,acommercialwindfarmwillhavetousebiggerturbines(涡轮发电机)thanHywinddoes,butit'sdifficultenoughtobalance❷suchalargeturbinesohighonafloating❸sparinthemiddleoftheocean.Tomakethatturbineheavier,thewholespar'scentreofgravitymustbemovedmuchclosertotheocean'ssurface.Todothat,thecompanyplanstodesignanewkindofwindturbine,onewhosegearbox(变速箱)sitsatsealevelratherthanbehindtheblades.①用electric的正确形式填空：electricity②选择balance在句中的含义：__B__A．天平B．平衡C．结算D．使相称③写出floating在句中的含义：漂浮的高考采撷(二)写作中的词汇应用(根据汉语及提示词翻译句子)1．(2016·北京高考书面表达)总之，我们为自己感到非常自豪，并且坚信我们可以为一个更美好的世界做更多的事。(conclusion)In_conclusion,_we_are_very_proud_of_ourselves_and_firmly_believe_we_can_do_more_for_a_better_world.2．(2015·重庆高考写作)俗话说，生活没有清晰可行的目标，就像航海时没有指南针。(aim)As_an_old_saying_goes,_living_without_a_clear_and_achievable_aim_is_like_sailing_without_a_compass.(二)课堂重点释疑1．conclusionn．结论；结束[记牢](1)draw/cometo/arriveat/reachaconclusion 得出结论makeaconclusion 下结论inconclusion 总之；最后(2)concludev. 得出结论；总结；结束toconclude 最后；总之conclude...with... 以……结束……concludethat... 结论是……[练通]单句语法填空①Fromthesefactswecandrawsomeconclusions(conclude)abouthowthepyramidswerebuilt.②Whenthegroupdiscussionisnearingitsend,makesuretoconcludeitwithimportantpoints.③Heconcludedfromtheirremarksthattheywerenotinfavouroftheplan.[写美]一句多译总之，散步是一种廉价、安全、有趣且易实施的锻炼方式。④In_conclusion,_walkingisacheap,safe,enjoyableandreadilyavailableformofexercise.(conclusion)⑤To_conclude,_walkingisacheap,safe,enjoyableandreadilyavailableformofexercise.(conclude)2．aimn．目标；目的(可数名词)；瞄准，对准(不可数名词)v．瞄准，对准；目标在于；以……为目标[记牢](1)takeaimat... 向……瞄准；对准withtheaimof... 目的是……；以……为目标(2)aimat/beaimedat(doing)sth. 瞄准；旨在(做)某事aimtodosth. 目标是做某事(3)aimlessadj. 无目标的；没有方向的aimlesslyadv. 漫无目的地[练通]单句语法填空①Aimed(aim)atimprovingthestudents'abilityoflisteningandspeaking,thisactivityisverypopular.②Theprojectaimsto_get(get)kidstoastagecalled“deepreading”，wheretheycanreadtolearn.③Iamherewiththeaimofdoingaswellaspossible.单句改错④Therewasatimewhenhehadnothingtodo,wanderingaimlessinthestreetallday.aimless→aimlessly[写美]句式升级⑤(2017·全国卷Ⅲ书面表达)Iamwritingtosincerelyinviteyoutojointhetabletennisteaminourschoolwhichisaimedatdevelopingourinterestsandimprovingourskills.→Iamwritingtosincerelyinviteyoutojointhetabletennisteaminourschoolaimed_at_developingourinterestsandimprovingourskills.(用过去分词短语作后置定语改写)3．balancen．天平；平衡；剩余；余额；余款v.(使)平衡；权衡[辨清]写出下列句中balance的含义①Whenhewasrunningafterhisbrother,theboylosthisbalanceandhadabadfall.平衡②ImustcheckmybankbalancebeforeIdecidetobuythecar.余额；余款③Youshouldbalancetheadvantagesagainstthedisadvantagesbeforeyougiveupyourpresentjob.权衡[记牢](1)thebalanceofnature 自然平衡keep/lose/breakthebalance 保持/失去/打破平衡(2)balance...against... 把……与……进行权衡balance...with... 对……与……同等重视(3)balancedadj. 平衡的；均衡的keepabalanceddiet 保持均衡的饮食[练通]单句语法填空④Itissaidthatsomewillgetfatiftheydon'thavebreakfast,becausethedietisnotbalanced(balance)．[写美]补全句子⑤如果我们想保持自然平衡，最重要的事情是同等重视经济发展与环境保护。Ifwewanttokeep_the_balance_of_nature,_themostimportantthingistobalance_the_development_of_economy_withtheprotectionofenvironment.[词汇过关综合训练]Ⅰ.单词拼写1．MybrothergraduatedfromtheEnglishdepartment(科，系)ofakeyuniversityfiveyearsago.2．Thegasesgivenoffbythefactorycontainapoisonoussubstance(物质)thatisharmfultopeople'shealth.3．Hermothertoldherthatitwasanimportantstage(阶段；时期)whereshemustmakeadecisionbyherself.4．Johnhasonlyoneaim(目标)inlife—tobecomerich,buthedoesnothingeveryday.5．Weallthinkthatthereportabouttheaccidentinnewspaperispartial(部分的)．6．TheTVplayserieswhichisaboutordinary(普通的)peoplehasbeenpopularrecently.7．Agreatideabegantoform(形成)inhismindwhentheproblemcameupatthemeeting.8．Asaworld­famousprofessor,heisbusydeliveringlectures(演讲)indifferentuniversitieseveryyear.9．Thegovernmenthastakensomemeasurestosolvetheshortageofelectricity(电),butitmaybesometimebeforethesituationimproves.10．Withmuchrubbishfloating(漂浮)ontheriver,Iappealtoeveryonetoprotectourenvironment.Ⅱ.单句语法填空1．Ourvillagehas_expanded(expand)intoatownduringrecentyears.2．Wewereallastonished(astonish)toknowthatshemarriedamanwhowas20yearshersenior.3．You'dsoundalotmorepoliteifyoumakearequestintheformofaquestion.4．Hedrewaconclusion(conclude)thatrobotswouldplayanimportantpartindoinghouseworkinthefuture.5．Iwillneverforgetmymother'sreactiontothenewsthatIwouldgoabroadforfurtherstudy.6．Hewasdeterminedtodonatehismillionsofdollarstobuytheequipment(equip)fortheresearch.7．Itwasaboiling(boil)hotdayandfewpeoplewereonthestreet.8．Weallknowthatabalanced(balance)dietisofgreatimportancetoourhealth.9．Somewerecollectingfirewood,whileotherswerejustaimlessly(aimless)walkingorstandingbytheroad.10．Theblackbabyboyisatthestagewherehecanonlysayafewsimplewordsbutnotyetfullsentences.Ⅲ.根据提示补全句子1．他养成了读书时记笔记的习惯。(form)Hehas_formed_the_habit_oftakingnoteswhiledoingsomereading.2．我相信这次旅行会大大加深我们的知识。(add)Thetrip,Ibelieve,willadd_greatly_to_our_knowledge.3．我们学校的校报上有一个“外国文化”栏目，旨在介绍美国风俗和中学生生活。(aim)Inthenewspaperofourschoolthereisacolumncalled“ForeignCultures”，aiming_to_introduceAmericancustomsandthelifeofhighschoolstudents.4．从以上讨论可以得出两个结论。(conclusion)Therearetwo_conclusions_to_be_drawnfromtheabovediscussion.5．应该教孩子如何应对地震。(react)Thechildrenshouldbetaughthowtoreact_to_an_earthquake.(一)课前自主学习1．put_...in_order[串记1] 把……按顺序排列；使……有条理2．used_to 过去(常常)……3．be_proud_of[串记2] 为……感到骄傲/自豪4．at_the_top/bottom[串记3] 在……的顶/底部5．be_supposed_to 应当；理应6．find_out 发现；查清7．react_with 与……起(化学)反应8．go_ahead 请做吧；请用吧；开始做某事9．in_the_area_of 在……领域10．add_...to_... 往……加入……11．keep_...out_of 使不进入；避开(某事)12．either_...or_... 或者……或者……[同根短语串记]①put...inorder 把……按顺序排列②inorder 按顺序；井然有序③ingoodorder 秩序井然④inorderof 按……顺序⑤outoforder 有毛病；出故障串记2.“荣耀”让人更自豪①beproudof 为……感到骄傲/自豪②beproudtodosth. 以做……而自豪③takepridein 为……感到骄傲/自豪串记3.“位置”不要记错了①atthetop/bottomof... 在……的顶/底部②atthefootof 在……脚下③in(the)frontof 在……前面(部)④ontheleft/right 在左/右边⑤inthemiddle 在中间1．testtube 试管2．doanexperiment 做实验3．thelatestequipment 最新设备4．inthelasttwentyyears 在过去的二十年里5．wintheNobelPrize 获得诺贝尔奖1．Theearthisforty­nine_times_larger_thanthemoon.地球是月球的49倍大。2．It_is_hard_to_think_ofaworldwithoutmetals.很难想象一个没有金属的世界。3．Here_is_a_tablewiththemetalsthatreactmostatthetop,andthemetalsthatreactleastatthebottom.下面是一个表格，列于顶部的金属反应最强烈，底部的则最弱。4．The_closeryouare,the_moreyou'llsee.你离得越近，看到的就越多。[学考对接·活学活用]高考采撷(一)完形中的短语(补全句子)1．(2017·北京高考完形填空)ThereisanemergencyshelterinWinnipegcalled“Hannah'sPlace”，somethingthatHannahis_very_proud_of(为……感到非常骄傲)．2．(2017·浙江高考完形填空)AliaBakerisalibrarianinIraq.Herlibraryused_to_be(过去是)ameetingplaceforallwholovedbooksandlikedtoshareknowledge.高考采撷(二)写作中的短语和句式(词汇升级/补全句子)1．(2018·全国卷Ⅰ书面表达)Tobeginwith,accordingtoourtradition,youshouldarriveearly,sothatyoucanhelpthefamilypreparethedinner,whichisnotonlymeaningfulbutalsointeresting.(用本单元短语替换加黑词)are_supposed_to2．(2018·全国卷Ⅱ书面表达)这儿有一些关于这部英文短片的相关细节。(here引起的完全倒装句)Here_are_some_relevant_detailsabouttheEnglishshortfilm.3．(2018·江苏高考书面表达)毫无疑问，完全依赖消费排名是不明智的。(Itis＋adj.＋todo)Thereisnodoubtthatit_is_unwise_to_dependcompletelyontheratingsinconsumption.(二)课堂重点释疑[短语集释]1．usedto过去(常常)……[记牢]thereusedtobe... 过去常常有……be/getusedto(doing)sth. 习惯(做)某事beusedtodosth. 被用来做某事[练通]单句语法填空①Heusedto_stay(stay)uplate,butnowheisusedtogoing(go)tobedearly.②Thefollowingsimpleexperimentisusedto_separate(separate)differentliquids.[写美]补全句子③就我个人而言，我过去尝试过有效的方法来实现我的学习目标。Personally,Iused_to_try_effective_methods_to_achievemyacademicgoals.2．besupposedto应当；理应[记牢](1)besupposedtodosth. 应该/理应做某事besupposedtobedoingsth. 应当/理应正在做某事besupposedtohavedonesth. 本应该做了某事(实际未做)(2)supposing/suppose(that)．.. 假定/假如……(3)Isupposeso/not. 我认为是/不是这样。[练通]单句语法填空①Studentsare_supposed(suppose)toobeytherulesatschool.②Youarelateagain.Youaresupposedtohave_arrived(arrive)herefiveminutesearlier.③Supposing/Suppose(suppose)thatyouarewrong,whatwillyoudothen?一句多译你本应该昨天就把作业交上的。④Youwere_supposed_to_have_handed_inyourhomeworkyesterday.(besupposedto)⑤Youshould_have_handed_inyourhomeworkyesterday.(should)⑥Youought_to_have_handed_inyourhomeworkyesterday.(oughtto)[用准]suppose/supposing及assuming(that),providing/provided(that),given(that)可以作连词，引导条件状语从句，意为“如果，假如”，表示一种假设条件。[写美]补全句子⑦(2018·全国卷Ⅱ书面表达)电影结束后，每个班都应该讨论，欢迎所有的学生都发表评论，表达自己对这部电影的看法。Afterthefilm,eachclassis_supposed_to_have_a_discussionandallthestudentsarewelcometomakecommentsandexpresstheirviewsaboutthefilm.3．add...to...往……加入……[记牢](1)addto 增加；增添(多用于抽象意义)addup 把……加起来；合计addupto 加起来共计/达(不用于被动语态)add(that)... 补充说……(2)additionn. 加；(数)加法；增加inaddition 另外inadditionto 除……之外[练通]单句语法填空①Pleaseaddallthefiguresup,_andyouwillgetthetotal.②Asisknowntoall,goodfriendsaddhappinessandvaluetolife.③Perhapsyouthinkyoucouldeasilyaddtoyourhappinesswithmoremoney.④(2017·全国卷Ⅱ)Inaddition,therearefamousartistswhowillperformhowtocutpaperonthespot.[写美]一句多译除了为了知识而读书外，我们读书也为了乐趣和灵感。⑤In_addition_toreadingforknowledge,wereadforfunandinspiration.⑥Wereadforfunandinspirationas_well_asforknowledge.[句式集释]1．Itis＋adj.＋todo...[教材原句]It_is_hard_to_thinkofaworldwithoutmetals.[悟拓展例句](1)Itisimpossiblefor_this_country_to_recoverinashorttimeoverthisfinancialcrisis.经历了这次经济危机，这个国家短期内恢复正常是不可能的。(2)It'skindof_you_to_helpmesetupmyowncompany.你帮我成立了自己的公司，真是太好了。(3)It_is_a_shame_thathedidn'tpasstheexam.真遗憾他没有通过考试。(4)It'snousearguing(argue)withher—shewon'tlisten.[析用法规则]用法归纳(1)Itis＋adj.＋forsb.todosth.句式中，作表语的形容词说明不定式行为的性质和特点，常见的有easy,important,difficult,impossible,necessary等。(2)Itis＋adj.＋ofsb.todosth.句式中，作表语的形容词说明不定式逻辑主语的品行、性格等，常见的有kind,nice,good,stupid,silly,careful,careless等。(3)Itis＋adj./n.＋that/todo...(4)Itisnogood/usedoingsth.“做某事没有好处/用的”注意事项在上面这些句型结构中，it是形式主语，动词不定式短语、动名词短语或that从句作真正的主语。[背写作佳句](1)(2018·11月浙江高考写作)It'sareallygoodideatovisitcollegesbeforeyouapplybecausetheirwebsitescanallstarttolookandsoundthesame.(开头句)(2)(2015·天津高考书面表达)Ofcourse,Iguessitisnotsoeasyforyoutolearnit.(要点句)2．the＋比较级...,the＋比较级...[教材原句]The_closeryouare,the_moreyou'llsee.[悟拓展例句](1)Themore_difficult(difficult)thequestionsare,thelesslikelyheisabletoanswerthem.(2)Theharderyouwork,the_greater_progress_you_will_make.你工作越努力，进步就越大。[析用法规则]用法归纳“the＋比较级．..，the＋比较级．..”结构的具体用法如下：(1)意为“越……，就越……”，主、从句的两个谓语是同时进行的，表示后面一方随前面一方程度的变化而变化。(2)从结构上看，第一个“the＋比较级”是表示条件的状语从句(通常用一般现在时或一般过去时；表示将来意义时，从句用一般现在时表示将来)；第二个“the＋比较级”是主句(通常使用一般将来时或过去将来时，有时也可用一般现在时或一般过去时)。注意事项本结构可以用省略形式。[背写作佳句](1)Clevermenknowthatthemoreeffortstheymake,thebiggerchancetheywillhavetobesuccessful.(要点句)(2)(2018·北京高考书面表达)ThemoreyouknowabouttraditionalChineseculture,themoreyouareinterestedinit.(要点句)[词块、句式过关综合训练]Ⅰ.选词填空beproudof，put...inorder，either...or...，intheareaof，besupposedto，add...to，usedto，findout1．Anyonewhowantstotakepartinthevoluntaryactivitycanaddhisorhernametothelist.2．Iused_toplaywithJackonhisfamilyfarmwherethereisamuseumnow.3．Believeitornot,althoughheisyoung,heisanexpertin_the_area_ofmedicalscience.4．Hisparentsare_proud_ofhisachievementswhichhehasmadeinthefieldofchemistry.5．Hewas_supposed_tohavereceivedmyletter,buthedidn't.6．Iwanttocalltofind_outwhenthetrainstarts.7．Thebooksontheshelfareoutoforder.Let'sputthemin_order.8．Ialwayshaveeitherdumplingsornoodlesforsupper.Ⅱ.根据提示补全句子1．你练得越多，你就会越擅长它。(the＋比较级...,the＋比较级)The_moreyoupracticesomething,the_betteratityouwillbecome.2．如果你不确定做什么，明智的做法是记住这个谚语：“入乡随俗。”(Itis＋adj.＋todo...)Ifyouareunsurewhattodo,it_is_wise_to_rememberthesaying“WheninRome,doastheRomansdo.”3．我们等候的公交车来了！(here引起的完全倒装句)Here_comes_the_buswearewaitingfor!4．长江几乎是珠江的两倍长。(倍数表达法)TheYangtzeRiverisalmost_twice_longer_thanthePearlRiver.Ⅲ.分步写作假定你是光明中学的李华，请根据以下要点向你的美国笔友Tom写一封英文信，介绍你校刚刚建成的实验室和同学们上实验课的情况。内容包括：1．实验室设备齐全、先进；2．老师非常优秀，实验课生动、有趣、有意义；3．同学们动手动脑，积极活跃；观察和实践能力迅速提高。注意：1.词数100左右；2．可以适当增加细节，以使行文连贯。第一步：准确审题，理行文脉络，拟写作要点1．审题：①文体：普通书信②人称：主要是第一人称③时态：主要是一般现在时2．内容要点：本题所提供的信息内容贴近学生的生活，让学生有内容可写，难度不大。根据写作要求，本文可采用三段式结构行文。第一段(开头语)：问候对方，说明写信的目的；第二段(主体部分)：具体介绍实验室(要点1)；介绍老师(要点2)；介绍学生(要点3)，题目已给出写作内容，写作时要灵活运用英语知识，采用不同的表达方式将各要点完整地表述出来，注意主次分明、详略得当；第三段(结尾语)：总结并表达个人的希望。开头语：你好吗？现在我写信向你介绍我们新建的实验室。(new­build)How_are_you_going?_Now_I'm_writing_to_introduce_our_new­build_lab_to_you.要点1：这个新实验室配备了各种各样的先进的设备。(laboratoryfacility)The_new_lab_is_equipped_with_all_kinds_of_advanced_laboratory_facilities.要点2－①：我们的老师非常优秀。Our_teachers_are_very_excellent.要点2－②：他们总能让课堂生动、有趣和有意义。They_always_make_classes_lively,_interesting_and_meaningful.要点3－①：学生们总是认真听讲，深入思考和积极实践。The_students_always_listen_carefully,_think_deeply_and_practice_actively.要点3－②：我们的观察和实践能力迅速提高。Our_abilities_of_observing_and_practicing_improve_rapidly.结尾语：作为学生，我们每个人都应该珍惜有利条件，充分利用实验室来帮助我们学习。(treasure)As_students,_every_one_of_us_should_treasure_the_beneficial_conditions_and_make_good_use_of_our_lab_to_help_us_study.第二步：添加细节，文意更丰满，表达更亮眼为了使内容更充实，梳理要点时应根据表达需要作适当的拓展，让要点在内容上和形式上更丰满。例如：要点2－①可添加定语“教我们物理和化学的老师们”；要点3－①可添加“按照老师们的指导”。拓展要点2－①：教我们物理和化学的老师们非常优秀。(用who引导的定语从句)Our_teachers_who_teach_us_physics_and_chemistry_are_very_excellent.拓展要点3－①：按照老师们的指导，学生们总是认真听讲，深入思考和积极实践。(accordingto)The_students_always_listen_carefully,_think_deeply_and_practice_actively_according_to_the_teachers'_instruction.第三步：连句成文，排语句顺序，重衔接过渡本写作可采用“三段式”结构组织全文。在写作时要注意语言的连贯性和得体性，根据要点之间的逻辑顺序可使用衔接词and,so等，使文章过渡自然，衔接紧密。Dear_Tom，How_are_you_going?_Now_I'm_writing_to_introduce_our_new­build_lab_to_you.The_new_lab_is_equipped_with_all_kinds_of_advanced_laboratory__teachers_who_teach_us_physics_and_chemistry_are_very__always_make_classes_lively,_interesting_and__the_students_always_listen_carefully,_think_deeply_and_practice_actively_according_to_the_teachers'__our_abilities_of_observing_and_practicing_improve_rapidly.As_students,_every_one_of_us_should_treasure_the_beneficial_conditions_and_make_good_use_of_our_lab_to_help_us_study.Yours，Li_Hua理清文体结构之(五)记叙文之时间顺序——情节线是关键以时间为顺序的记叙文是高考试题中较为简单的一种文体。在该类文体中往往含有两条重要线索：一个是时间的先后关联；另一个是在时间变化中的情节变化。高考试题往往以这些情节变化作为命题点。因此，在解答此类文体时要注意时间线是理解文章的助手，而情节线是解题的关键。[高考典例]2017·浙江卷·A篇[时间线⇨读文助手][高考典例]2017·浙江卷·A篇[情节线⇒解题关键]开端：时间1承接：时间2发展：时间3发展：时间4高潮：地点转换结局[1]BenjaminWest,thefatherofAmericanpainting,showedhistalentforartwhenhewasonlysixyearsofage.Buthedidnotknowaboutbrushesbeforeavisitortoldhimheneededone.Inthosedays,abrushwasmadefromcamel’shair.Therewerenocamelsnearby.Benjamindecidedthatcathairwouldworkinstead.Hecutsomefurfromthefamilycattomakeabrush.[2]Thebrushdidnotlastlong.SoonBenjaminneededmorefur.Beforelong,thecatbegantolookragged(蓬乱).Hisfathersaidthatthecatmustbesick.Benjaminwasforcedtoadmitwhathehadbeendoing.[3]The_cat’s_lot_was_about_to_improve.Thatyear,oneofBenjamin’scousins,Mr.Pennington,cametovisit.HewasimpressedwithBenjamin’sdrawings.Wh