Unit2Whatishappinesstoyou？
基础回顾核心考点跟踪演练
基础回顾
核心词汇——写其形1．____________vt.&vi.服从，听从，顺从2．____________vt.分配3．____________vt.拥护；支持；提倡4．____________vt.&vi.放弃；离开；停止5．____________vt.完成，实现6．____________vt.围绕；环绕7．____________adj.青少年的；地位(或职位、级别)低下的8．____________adj.足够的9．____________adj.无把握的，不确定的10．____________adj.杰出的，出色的，优秀的obeyallocateadvocatequitaccomplishsurroundjunioradequateuncertainoutstanding
阅读词汇——知其意1．handyadj.________________2．hardshipn.________________3．proceduren.________________4．temporaryadj.________________5．automaticadj.________________6．maximumadj.________________n.________________易使用的，便利的艰难，困苦步骤，程序暂时的；短暂的自动的最大的，最多的最大值，最大极限
7．minimumadj.________________n.________________8．depthn.________________9．matureadj.________________vi.________________10．celebrationn.________________最小的，最少的最小值，最小极限深度，深厚成熟的成熟，使充分发展庆典；庆祝活动
拓展词汇——通其变1．________v．围绕；环绕→____________n．环境；周围的事物→___________adj.周围的2．________v．帮助→________n．帮助→________n．助理，助手3．__________v．陪伴；伴随；为……伴奏→________n．公司；陪伴4．__________n．感激，感谢；欣赏；理解；(艺术方面的)鉴定，评估→__________vt.感激；欣赏5．___________n．娱乐活动；娱乐；招待→________v．使快乐；招待→__________adj.有趣的，使人愉快的surroundsurroundingssurroundingassistassistanceassistantaccompanycompanyappreciationappreciateentertainmententertainentertaining
6．________adj.令人钦佩的；值得赞美的→________vt.敬佩；钦佩7．________v．预言；预告；预报→________n．预言→________n．预示物8．________vi.&vt.(使)适应；改编→________n．适应；改编本，改写本9．__________adj.无法忍受的→________adj.可忍受的→______v．承受；忍受；承担10．________adv.径直地；直接地conj.一……就……→________adj.笔直的；直接的；直率的vt.&vi.导演；指示；指挥→________n．方向，方位；(常用复数)用法说明admirableadmirepredictpredictionpredictoradaptadaptationunbearablebearablebeardirectlydirectdirection
高频短语——记得牢1．________________远离，和……不在一起；除了2．________________朝……方向(地方)行进，前往3．________________独自，单独；独立地4．________________高兴起来，振作起来5．________________适应；改编；使适合6．________________匆忙地，急切地7．ingoodspirits________________8．focuson...______________________________9．atthatpoint__________________10．toone'srelief________________11．feelcaughtbetween..._____________________12．beadequatefor________________apartfrom...headfor...onone'sowncheerupadapttoinarush心情好集中(注意力、精力等)于/聚焦于……在那时；在那个阶段令某人欣慰的是在……之间感到左右为难足够；能胜任
即学即用：用所学单词或短语的适当形式填空1．Theyhad_________(足够的)moneyforthecostofthejourney.2．Immediatelythesoldiers______________(围住)himandhisson.3．He__________(放弃)whenherealizedhecouldnotwin.4．Thegirlwhowonthescholarshipwasquite__________(优秀的)．5．Whereveryouare,youcan____________(实现)yourdreams.adequatesurroundedquit/quittedoutstandingaccomplish
6．Heisfeelingtired,soheis_________(不确定的)howmuchfurtherhecanwalk.7．They________(提倡)thestrictcontrolofpollutiontoprotecttheenvironment.8．Mostlawsremainfirmandare________(服从)oncetheyareestablished.9．Inthesubsequentdynasties,theGreatWallwas________(重建)manytimes.10．Theprofessordividedtheclassintofivegroupsand_________(分配)taskstothem.uncertainadvocateobeyedrebuiltallocated
11．__________(除了)goodservice,therestaurantoffersdifferentkindsoftraditionalFujiandishes.12．Everyonehasgot________(厌倦)hisendlessspeech.13．Hearingtheexplosion,he____________(前往)thebuildingtoseewhathadhappened.14．____________(令我们感到欣慰的是),thecandidatearrivedattheconferenceatthelastminute.15．Tombelievesthathecandoeverything__________(独自地)．ApartfromtiredofheadedforToourreliefonhisown
经典句型复现1．It________________adequatetimeforeachisjustnotpractical.要给每件事分配足够的时间，似乎是不切实际的。2．Mywholelifewasstillaheadofme.Atthatpointinmylife,I________________anythingorbecomeanyone.我的整个人生还都在前面等着我。在人生的那个阶段，我本可以做任何事，成为任何人。3．______________wasgotoschoolandspendafewhoursstudyingwhenIcamehome.所有我要做的事就是上学，以及回家后再学习几个小时。feelslikeallocatingcouldhavedoneAllIhadtodo
4．___________shecompetedinthegymnasticstournamentattheNewYorkGoodwillGames,she__________ajuniorgymnastforelevenyears.到参加纽约友好运动会的体操锦标赛时，她已经是一名有着十一年经历的体操小将了。5．Ihavereceivedlettersfromsomanypeople,____________________.我已经收到来自如此多人的信件，全都表达了他们的关心。Bythetimehadbeenallexpressingtheirconcern
即学即用：完成句子1．我们几天前才认识，但感觉好像认识了好久。(feellike)Wejustmetacoupleofdaysago,butit________we'veknowneachotherforalongtime.2．我们可以从本可以被避免的失误中获得宝贵的智慧，防止它们再次发生。(couldhavedone)Wecangainvaluablewisdomfrommistakeswhich____________________topreventthemfromhappeningagain.feelslikecouldhavebeenavoided
3．此刻我们能做的事就是坐下来等。(不定式符号to的省略)Atpresent,allthatwecandois_______________.4．到上学期结束时，我几乎已经学完了所有的大学课程。[2017·天津卷]Bythetimelasttermended,I________almost________allmycollegecourses.sitdownandwaithadfinished
核心考点
第一版块：高考考纲高频单词1．surroundvt.包围；围绕；环绕(1)surround...with...使……包围……besurroundedwith/by...被……包围(2)surroundingadj.周围的surroundingsn.环境
(1)Someofusremainedontheplatform,callingonpassengerstohelpkeepthe___________(surround)clean.(2)Thelittlefamilyhappilylivedinabeautifulvillage________(surround)withbeautifulnature.(3)(句式升级)Becauseaparkandalibrarysurroundmycommunity,it'sreallyagoodplacetorelaxandimproveyourself.(用with的复合结构提升句子)→______________________________，mycommunityisreallyagoodplacetorelaxandimproveyourself.surroundingssurroundedWithaparkandalibrarysurrounding
2．adaptv．使适应；使适合；改编；改写(1)adapt(...)to(使……)适应于……adaptoneselfto...使自己适应……adapt(...)from...根据……改编(写)……adapt...for...把……改编(写)成……；为……改编(写)……；为……改装(2)adaptationn.改编本；适应adaptableadj.可改编的；能适应的
(1)Learningthatyoufailtoadapt________(you)welltotheschoollifehere,Iamwritingtoexpressmyearnestcomforttoyou.(2)Afterenteringthehighschool,theycan'tadapt_____theenvironmentanddon'tknowhowtomakenewfriends.(3)(写作佳句)Whatpuzzlesthemisthat___________________________________________.使他们困惑的是，很难使自己适应高中生活。yourselftoitisdifficulttoadaptthemselvestotheseniorschoollife
3．accompanyvt.陪同，陪伴；伴随，与……同时发生；为……伴奏(1)accompanysb.tosomeplace陪伴某人去某地accompanysb.at/on...(尤指用钢琴)为某人伴奏beaccompaniedwith/by...附带着，伴随着(与……同时存在或发生)(2)companyn.公司；做伴；同伴keepsb.company＝accompanysb.陪伴某人inthecompanyof...在……的陪伴下(3)companionn.伙伴；同伴
(1)Whileshewassingingonthestage，hermotherwasaccompanyingher________thepiano.(2)Thedisease__________________(伴随)sneezingandfever.[同义句改写](3)Ishallaccompanyhim________Beijing.→HeshallgotoBeijing______________________me.(company)【易错点拨】(1)accompany是及物动词，不要在其后误加介词with，如不说：Thunderaccompanieswithlightning.但是，用于被动语态的accompany后可接介词with或by。(2)accompany习惯上不接不定式的复合结构作宾语，如下句中的togo应去掉：Heaccompaniedhertogotothestation.。at/onisaccompaniedby/withinthecompanyofto
4．quitv．停止；离开；辞职；退学quit(doing)sth.停止(做)某事quitoffice/one'sjob离职/辞掉工作quitschool辍学quitsmoking戒烟
(1)Doctorsaredoingresearchtofilmoutwhathappensphysicallywhenpeoplequit________.医生正在做研究，以找出人们戒烟时身体会发生什么。(2)Theboy________________andfoundajobtosupporthisfamily.那个男孩辍学了，找了份工作养家。【链接高考阅读·翻译句子】(3)Hesaidthatifhequitthejob，hewouldlosehisdrivetoworkandsucceed.[2018·浙江卷]___________________________________________________________smokingquit/quittedschool他说如果辞职，他就会失去工作和取得成功的欲望。
[熟词生义]选择句子中quit的汉语意思(4)HequitParisafteramonth.________A．中断B．偿清C．离开【易错点拨】quit后接名词或动名词作宾语，不能接不定式作宾语。C
5．assistv．帮助；协助；援助(1)assistsb.withsth.帮助某人某事assistsb.todo/indoingsth.帮助某人做某事(2)assistancen.援助，帮助；辅助设备withtheassistanceof在……的帮助下come/gotoone'sassistance来/去帮助某人beofassistance有帮助
(1)Asit'sourfirsttimeinEngland,wedohopeyoucansendan________(assist)togoaroundwithusduringourstaythere.(2)Ihopeyoucangiveme__________(assist)inthisproblemandthankyouinadvance.(3)TheChinesegovernmenthaspaidgreatattentionto_________(assist)poorareastodevelopeducation.(4)(写作佳句)Thecompetitionisintendedto_______________________________________andenrichtheirschoollifeaswell.这次比赛的目的在于帮助学生养成健康的饮食习惯，丰富他们的学校生活。assistantassistanceassistingassiststudentsingettingintohealthyeatinghabits
6．instantadj.立即的；立刻的；速食的n．瞬间；片刻(1)inaninstant＝instantly立刻；马上foraninstant一瞬间；刹那间theinstant(＝instantly)一……就……(2)instantlyadv.立刻conj.一……就……Atthegateofabar,hecameacrosshisteacher.Whenaskedwhathewasdoingthere,hecouldn'tanswer(1)_____________(一瞬间)andleftthere(2)__________________(马上)．(3)__________________(一……就……)hegothome,heclosedthedoorandwaslostinthought.[联想发散]表示“一……就……”的连词或短语还有：assoonas，themoment/minute/second，hardly...when，nosooner...than，directly，immediately等。foraninstantinstantly/inaninstantTheinstant/Instantly
7．motivatevt.使有动机，促使，激发(1)motivatesb.todo...激励某人做……bemotivatedbygreed/fear/love多贪欲/恐惧/爱所驱使(2)motivationn.动力；动机lackthemotivationtostudy缺乏学习的动力
(1)Ifsomeone_____reallyhighly_________(motivate),theycanlearnreallyquickly.(2)Unlessyoucansleepwell，youwilllosetheabilitytofocus，planandstay_________(motivate)afteroneortwonights.[2018·江苏](3)Wemustmotivatestudents_______(take)chargeoftheirownlearning.(4)Jackisanintelligentpupil,buthelacks__________(motivate)．ismotivatedmotivatedtotakemotivation
8．advocatevt.拥护；支持；提倡n．支持者(1)advocatesth./doingsth.主张(做)某事(2)advocatethat...(should)dosth.主张……(1)Someimmigrantadvocatesworrythatashardfinancialtimesmakeitmoredifficultfornativestokeepjobs.[2017·浙江卷，阅读理解C]一些拥护移民的人担心在经济萧条时期，本国人想要保住现有的工作变得更加困难……(2)Manyexpertsadvocaterewardingyourchildforgoodbehaviour.很多专家主张对小孩的良好表现加以奖励。
写作联想：句(2)其他表达方式①Manyexpertsadvocatethatyoushouldrewardyourchildforgoodbehaviour.②Itisadvocatedbymanyexpertsthatyoushouldrewardyourchildforgoodbehaviour.[句型转换]Theyadvocatedfittingsmokedetectorstoallthebuildings.→Theyadvocatedthatallthebuildings(________)____________smokedetectors.shouldbefittedwith
9．sufferingn．疼痛，痛苦；折磨(1)suffervt.遭受，蒙受；后常跟pain/defeat/loss/poverty/hunger/punishment/hardship/damage等名词。(2)suffervi.后常跟介词from，表示“受……折磨；受……之苦；患(某种疾病)”。【巧学助记】
(1)Walkinguprightresultsinphysicalsufferings.[2019·江苏卷]直立行走导致身体的疼痛。(2)Thiswarhascausedwidespreadhumansuffering.这场战争给许许多多的人带来了苦难。(3)Manycompaniesaresufferingfromashortageofskilledstaff.许多公司苦于缺乏熟练员工。[完成句子](1)这场战争给人们带来了许多苦难。Thiswarhascausedalotof________forpeople.(2)西蒙患有偏头痛。Simon___________migraines.sufferingsuffersfrom
10．directlyadv.径直地；直接地(1)directsth.to/towardssth./sb.把……对准……(2)directsb.to给某人指路(to为介词)(3)directsb.todosth.指示/命令某人做某事(4)inthedirectionof...朝着……的方向(5)inalldirections四面八方
(1)Iquicklylowermyself,duckingmyheadtoavoidlookingdirectlyintohiseyessohedoesn'tfeelchallenged.[2018·全国卷Ⅲ，语法填空]我赶紧低下头，以免直视他的眼睛，这样的话他就感觉不到受到挑战了。(2)Couldyoudirectmetothestation?请问到车站怎么走？(3)Someridersofebikesandbicyclescomeandgoinalldirections,ignoringtrafficlightsandothervehicles.一些骑电动自行车和自行车的人朝着四面八方来来去去，无视交通信号灯和其他车辆。
【特别提示】directly还可用作连词，意为“一……就……”，引导时间状语从句，与其意义相同的还有immediately,instantly等。[语法填空](1)________(direct)afterlunchwewerepackedandreadytogo.(2)Shewent________(direct)toSimon'sapartmentandknockedonthedoor.Directlydirectly
第二版块：重点短语和句式1．goafter追求；谋求；追赶；设法获得goahead前进；干吧；说吧goup上涨；上升；攀登；增加goagainst违反；违背；(决定、判决等)对……不利goby流逝；根据……决定goover检查，审查；复习，重温gowithout没有……也行；没有……而勉强应付gooff爆炸；离去；(电)中断；(警报器等)突然发出巨响
[根据句意用go短语的正确形式填空](1)Thefirealarm________；Ijustgrabbedmyclothesandranout.(2)Astime__________，theyrealizedtheimportanceofhealth.(3)Thoughthings_____________Mary,shewentontrying.(4)ShelefthomeintearssoI__________her.(5)—ShallIopenthewindowtoletinsomefreshair?—Sure,________.It'sreallyhothere.wentoffwentbywentagainstwentaftergoahead
2．feelcaughtbetween在……之间感到左右为难be/feelcaughtbetween(＝beinadilemma＝betornbetween)在……之间感到左右为难be/getcaughtin遭遇catchsb.doingsth.撞见某人做某事catchsightof看见catchholdof抓住catchupwith赶上，追上catchon受欢迎；领会
(1)I________________goingabroadforfurtherstudyandlookingforajob.我在出国深造和寻找工作之间左右为难。(2)He_______________acaraccidentyesterday.昨天他遭遇了一场车祸。(3)I__________________inthebathroomyesterday.昨天我撞见她在盥洗室抽烟。feelcaughtbetweenwas/gotcaughtincaughthersmoking
3．apartfrom远离，和……不在一起；除了(1)take...apart将……拆卸开(2)fallapart破裂，断裂，散开(3)set/putapart留出，拨出(4)tellAandBapart＝tellAfromB分辨出A与B(1)Ihavefinishedapartfromthelastquestion.除了最后一道题，我全做完了。(2)Wehadtotaketheengineapart.我们不得不卸下引擎。
【特别提示】apartfrom具有多重含义，既相当于except/but，意为“除……以外”，又相当于besides，意为“除……以外，还有……”；还相当于exceptfor...“除了……”。具体含义根据上下文断定。[选词填空](apartfrom/except/besides/exceptfor)(1)________________thecost,itwilltakealotoftime.(2)Iknownothingabouthim_______________thefactthathelivesnextdoor.(3)___________________afewfinedays,thesummerhasbeenwet.(4)________________knowingsomeGreek,sheisfluentinRussian.Apartfrom/Exceptexcept/apartfromExceptfor/ApartfromBesides/Apartfrom
4．AllIhadtodowasgotoschoolandspendafewhoursstudyingwhenIcamehome.我要做的事就是上学，以及回家后再学习几个小时。句型：不定式符号to的省略动词不定式省略to的情况：(1)不定式作表语时，如果主语中含有实义动词do(包括do的任何形式)，则作表语的不定式可以省去符号to。主语部分的谓语动词不是动词do的某种形式时，不定式符号to不能省略。(2)一些含有but的固定搭配，如“cannothelpbut，cannotchoosebut，cannotbut”等结构中，but后面跟不带to的不定式。(3)主语为theonly，thefirst，theleast，形容词最高级等或主语被这些词修饰，且其后作定语的从句或短语中含有实义动词do的某种形式时。
(1)Thebestwayhecouldthinkofatthattimewas_________________(给他更多的钱)．(2)Whatwecandonowis_____________________(立刻采取措施)toreducepollution.(3)ThefirstthingthatIwanttodois________________myparentsthegoodnews.我想做的第一件事就是飞奔回家告诉我父母这个好消息。(4)Itrainedhard，sotheycouldn'tchoosebut___________.雨下得很大。他们只得待在家里。togivehimmoremoney(to)takeimmediateactionrushhomeandtellstayathome
5．BythetimeshecompetedinthegymnasticstournamentattheNewYorkGoodwillGames,shehadbeenajuniorgymnastforelevenyears.到参加纽约友好运动会的体操锦标赛时，桑兰已经是一名有着十一年经历的体操小将了。介词by意为“到……为止”，常与完成时连用。by通常引导一个时间状语从句，表示“到……的时候为止”，主句则表示在此时间之前某个事件已完成。当by表示此意时，主句通常用完成时态，具体的形式取决于by引导的时间状语或状语从句。Bythetime(that)thisletterreachesyouIwillhaveleftthecountry.你收到这封信时，我已离开这个国家了。
【特别提示】by还可用来表示“当……的时候”，如果只是说过去某个时候的状况，则用一般过去时而不用过去完成时。例如：Bythetimethewarwasover,deathandfamineweretobeseeneverywhere.在战争结束的时候，到处可见死亡和饥荒。这里没有“死亡和饥荒”已经完成的意思，只是描述当时这个时间点的状况，所以用一般过去时。[完成句子](1)Bythetimewegothomewe___________________(又累又饿)．(2)Bythetimetheygethere,we______________(finish)thework.weretiredandhungrywillhavefinished
6．Ifyouknowofasimilarsituationwhereyoursolutionworked,mentionit...如果你知道你的解决问题的方法奏效的类似情景，把它提出来……在if从句中where引导的是定语从句，修饰先行词situation。定语从句中，当先行词是case(具体情况，事例)，point(阶段)，situation,scene,condition等词，且从句完整时，可以使用连接副词where引导从句。Youcouldgetintoasituationwhereyouhavetodecideimmediately.你可能遇上一种情况，使你不得不立刻作出决定。
[语法填空](1)He'sgothimselfintoadangeroussituation______heislikelytolosecontrolovertheplane.(2)We'rejusttryingtoreachapoint________bothsideswillsitdowntogetherandtalk.(3)Wewilldiscussanumberofcases_______beginnersofEnglishfailtousethelanguageproperly.wherewherewhere
跟踪演练
Ⅰ.单句语法填空1．It'squitehottoday.Doyoufeellike________(go)foraswim?2．Instead,wearediurnal(日间活动的)creatures,witheyesadaptedto______(live)inthesun'slight.3．Hehadnochoicebut_____(lie)downandcry.4．Onceuponatime，akinglivedinacastle____________(surround)byalargeforest.5．Thesingerwasaccompanied_______thepianobyhereldersister.goinglivingtoliesurroundedon/at
6．Hesleptonfirewoodandstrawtoremindhimselfofhis_________(suffer)．7．Somepeopleadvocated_________(limit)thenumberofcarsonthemainroad.8．Goodbyesaid,theygotintoataxiandheaded________theairport.9．Everyonewasingood_______(spirit)lessthanhalfanhourafterthepartybegan.10．Sure，Icould___________(ask)her，butsomethingpreventedmefromdoingso.sufferingslimitingforspiritshaveasked
Ⅱ.用本单元所学短语完成句子1．Ihavenothingmoretoaskyouabout___________(除了)thesequestions.2．Somepeopleadvocate__________(追求)pleasureinordertofindhappiness.3．Whenyoubelieveinsomebody,don'tbe_________(匆忙地)tochangeyourmind.4．Susandideverythingshecouldtoputthecryingbaby____________(心情好)．5．Wesawhim_____________(前往)us,sowesteppedaside.apartfromgoingafterinarushingoodspiritsheadingfor
Ⅲ.课文语法填空WhenIimaginemyfuture,Iseemyselfsuccessfulinmyjoband1.__________(surround)bymyfamily.Thenewtechnologywillguaranteegoodhealthandhappinesswithout2.________(suffer)forall.Theworkdaywillbeonlyfourhourslong,andeveryonecanhaveparttimejobs3._________areveryinteresting.Wewillhave4.________(hand)robotsandcomputersto5.________(assistance)uswiththeboringthings.Maybetherewillevenbeautomatickitchenstocook6.________(instant)mealsforus.surroundedsufferingthat/whichhandyassistinstant
Iwillalsobehappy7.________Iwillbeanadultthen.It'shardtofocusonbeinghappywhenIamateenager.Iwillbemorematureand8.________(allocation)myowntimetodothethingsIenjoy.It'snicetothinkthatmyhappiestdaysarestillaheadofme.Thinkingthiswaygivesmethe9.__________(motivate)toworkhardnow10.______thatIcanenjoymyfuturelife.becauseallocatemotivationso
Ⅳ.知识主线串记Nowadays,moreandmoreyoungpeoplewillgoabroadtogoafterbettereducation.Itcan1.__________(predict)thattheywillsufferfromcultureshock.HereIwanttotellthosewhowillgoabroadforfurtherstudyshouldmakefullpreparations.Ononehand,theyshouldbereadytoliveon2._____(they)own,noparents3.____________(accompany)them.Therefore,theyshouldadaptthemselvesquickly4._____thenewenvironment.bepredictedtheiraccompanyingto
Ontheotherhand,apartfrom5._______newenvironment,oncetheysetfootonthenewland,they6.______________(surround)bystrangers,whichisagreatchallenge.Inmyopinion,Ithink7.________theyshoulddoisturntotheirteachersorclassmatesforhelp,whoIthinkwillassistthemin8.________(solve)theproblems.Ifyouareoneofthem,youshouldfacethosechallengesingood9.________(spirit)anddonotquit10.________(try)．Onlyifyouhavethestrongermotivationcanyouaccomplishthegreatergoals.thewillbesurroundedwhatsolvingspiritstrying
Ⅴ.单元话题与写作StepOne：用本单元所学词汇和句式结构翻译句子。1．关于幸福，不同的人有不同的想法。(asfor)___________________________________________________________2．一些人有钱，他们认为自己幸福。(some)___________________________________________________________3．另外一些人有很多朋友，所以他们感觉幸福。(other)___________________________________________________________Asforhappiness,differentpeoplehavedifferentideas.Somepeoplearerich,andtheythinktheyarehappy.Otherpeoplehavemanyfriends，sotheyfeelhappy.
4．还有一些人因为生活有意义而感到幸福。(meaningful)___________________________________________________________5．对于科学家来说，一个发现或发明远比其他任何东西能给他带来极大的满足和幸福。(ratherthan；satisfactionandhappiness)___________________________________________________________Stillothersarehappybecausetheirlivesaremeaningful.Forascientist,adiscoveryoraninventionratherthananythingelsegiveshimgreatsatisfactionandhappiness.
StepTwo：把以上句子连成短文，要求衔接连贯、过渡自然。[参考范文]Asforhappiness,differentpeoplehavedifferentideas.Somepeoplearerich,andtheythinktheyarehappy.Otherpeoplehavemanyfriends,sotheyfeelhappy.Stillothersarehappybecausetheirlivesaremeaningful.Forascientist,adiscoveryoraninventionratherthananythingelsegiveshimgreatsatisfactionandhappiness.
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