Unit 7 The Art of Smart Guessing 练习答案文档格式.docx
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Unit 7 The Art of Smart Guessing 练习答案文档格式.docx
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2.Judge,accordingtothetext,whetherthefollowingstatementsaretrueorfalse.
1).Theauthoraskedthereaderstopaycloseattentiontothemethodtobeusedinsolvingthequizquestion.[T]
2).Thebestwaytoknowthenumberof"
phonestores"
intheUnitedStatesistogotothelocallibrarytodostatisticalresearch.[F]
3).Toillustratethesmartguessingapproach,theauthorhascitedalltogethersevenexamples.[F]
4).Thelawofaveragesispartlyresponsiblefortheaccuracyofourguessworkbecauseourassumptionsatthetwoextremesusuallybalanceout.[T]
3.Answerthefollowingquestions.
1).RefertoParagraph1.Theauthor,ontheonehand,intendedtofindouthowintelligenttheintervieweemightbe;
ontheotherhand,hewastiredofthecliché
?
inquestioningcandidatesduringinterviews.
2).RefertoParagraphs4and5.Thebestsolutionistoriskanapproximationsincethereisn'
tenoughinformationforyoutocomeupwithanexactlycorrectanswer.
3).RefertoParagraph6.Itmeansagreatdealforbusinessorcreativityaswefrequentlyneedtomakedecisionswhenfullinformationdoesnotexist.
4).RefertoParagraph9.TheycallthemFermiproblems,namedafterEnricoFermi,aNobelPrizewinner.Heusedsuchproblemstoteachhisstudentshowtomakeanapproximationwhenrelevantinformationisinadequate.
5).RefertoParagraphs16and17.Itlookedlikeamushroomcloud.Hehadfollowedasmartway,watchingunpoppedpopcornkernelsinthemicrowaveoven,toapproximatethehotspotsforcookinginsteadofusingscientificallysophisticatedtestingequipment.
6).Indecision-making,whenthenecessaryrelevantinformationisnotavailable,guessingbecomesinevitable.Smartguessing,i.e.guessingbasedonapproximationsisrecommendedinsuchcircumstances,anditmayoften,ifnotalways,provetobeeffectiveandfruitful.
4.Explaininyourownwordsthefollowingsentencestakenfromthetext.
1).Didyougetsotiedupinthesecomplexmathfiguresthatyouwereunabletogivethe"
exactlyright"
answer?
2).Didyoufocusallyourattentiononthetwomostimportantproblems,andthenmakeanestimationwhichmaynotbeexactlyright?
3).Yourmistakeswilloftenaverageout,i.e.theextremelyhighestimationsandtheextremelylowestimationswhichyoumakewilleventuallybecomeequalinamount,value,oreffect.
4).Theblackclothabsorbedtheheatofthesunmost.So,itsanksodeepbelowthatthesunrayscouldnotreachit.
II.WritingStrategies
Thistextisatypicalpieceofexpositiondevelopedbyexemplification.Thetitle,TheArtofSmartGuessing,pointsoutthethemeofthetext.Theintroduction,whichpresentsthebackgroundofthetext,isveryappealingtothereaders.Inthebodyofthetext,aFermiproblemisdefinedandillustratedwithspecificexamples.TheexamplesareprovidedtoshowwhataFermiproblemis,totellushowitcanbesolved,andtosuggestthesignificanceoftheartofsmartguessing.Itisworthnotingthattheconclusionechoesthebeginning,contributingtotheformationoftheorganicunityoftheessay.Thewriterhasincorporateddescriptions,anecdotes,opinions,andfactsintoahighlyindividualexpositoryessay.
Thetwoquestionsbelowareworthyofourattention:
(1)Inwhatwayistheintroductionconnectedwiththeconclusion?
Inthebeginningaone-questionquizisdescribed,inwhichaninterestingquestionisasked,andintheconclusionitsanswerisoffered,withthesmartguessingprocesspresented.Thus,thebeginningandtheconclusionarenaturallyconnectedwitheachother.
(2)InthebodyoftheessaytheauthorgivessometypicalexamplestoillustrateaFermiproblem.Howmanyexamplesarepresented?
Whatdoyouthinkoftheexamples?
Altogether,fourexamplesareprovidedtoexplainaFermiproblem.TheyareverytypicalexamplesthatbestillustratewhataFermiproblemis.
III.LanguageWork
1.Explaintheunderlinedpartineachsentenceinyourownwords.
1).Didyoumakeacompletelywildguess…
asimplygroundlesspredictionfarfrombeingcorrect
2).Didyougettooboggeddowninthedetailstryingtocomeupwiththe"
stumpedorbaffled;
workout
3).Ordidyouzeroinonthetwomostimportantproblems?
cometoconcentrateonanddealwith
4).Toanswerthequestion,herecommendedbreakingitdownintosmaller,moremanageablequestions.
dividingitinto
5).Becauseofthelawofaverages,yourmistakeswillfrequentlybalanceout.
beoflittleimportanceintermsofnumber
2.Fillineachblankwithoneofthetwowordsfromeachpairintheirappropriateformsandnotethedifferenceofmeaningbetweenthem.
hazardventure
1).Iwouldhazardaguessthattheywilldowellinthenextelection.
2).Afteracasualchataboutthelocalfamine,thewomanventuredtoanswerourcautiousquestions.
3).PatrollingtheUSborderwithMexicoisasfarashehasventuredintogeopolitics.
4).Hecouldnotbelievethat,hadtheEnglishmanknownhowmuchhewasatrisk,hewouldhavehazardedhisgrandson.
conventionaltraditional
1).WhenmostsubscribedtotheconventionalwisdomthatsoccerisaminorsportinAmerica,thevictoryhadarealimpactonthewholepopulation.
2).Thesecretaryofdefensearguedthatconventionalweaponswillsoonbetheleastofourworriesasweaponsofmassdestructionhavefoundtheirwayintothehandsofindividuals.
3).Thesetwoparties,whicharetraditionalrivals,describetheelectionasawarbetween"
neo-liberalism"
and"
communism"
.
4).Thelocalpeoplearestillverytraditionalinmanyways,refusingtosendtheirdaughterstoschool.
containinclude
1).Transportisnotincludedbutcanbearranged.
2).Theenvelopecontainedatyped,unsignedletterdemandingonemillionincash.
3).Thedeadincludedsixpeopleattendingareligiousceremony.
4).Seeminglyinconsequentialdetailscansometimescontainsignificantclues.
guesssuppose
1).Supposesomeonegaveyouaneggandaskedyoutodescribewhatexactlywasinside.
2).Askthechildrentoguesswhatisineachcontainerbydippingtheirhandsin.
3).Theauthor'
sintentionistokeepeveryoneguessinguntilthebitterend.
4).Everyonewassupposedtodancewiththebrideandpinmoneyonherdress.
3.Fillintheblankineachsentencewithawordorphrasetakenfromthebox,usingitsappropriateform.
resourcefulhazardintensityoutletmerchandiseestimate
trenchkernelvisualquiznauticalapproximate
1).Thisfigureisfivetimestheoriginalestimate.
2).Theyhavenowaytodisposeofthehazardouswastetheyproduce.
3).BritainisintensifyingitseffortstosecurethereleaseofthreeBritishhostages.
4).Translationmustalwaysbeaprocessofapproximationandcompromise.
5).There'
sasizzlingsummerofsoccerahead—we'
rekickingitoffwithaseriesofcrackingquizzes.
6).Turningthatvisionintoarealityisnoteasy.
7).Idon'
tenvisageIwilltakeanexecutiverole,butratherbecomeaconsultantonmerchandiseandmarketing.
8).Surelyitiseconomicnonsensetodepletetheworldofnaturalresources.
4.Makeasentenceofyourownforeachofthegivenwordswithmeaningsotherthanthoseusedinthetext.Youmaychangethepartofspeechofthesewords.
1).wild
AstheSuperGirlscameonstagetheywentwild.
2).elegant
Thearticleimpressedmewithitselegantsimplicity.
3).raise
Allfundsraisedwillbeusedforchildrenwithleukaemia.
4).figure
Janetwasanaturalblondewithagoodfigure.
5).stroke
Itdidn'
train,whichturnedouttobeastrokeofluck.
6).kernel
Thekernelofthatmessageisthatpeaceisasourceofadvantageforthepoor.
5.Combineeachpairofsimplesentencesintoacomplexsentence,usingpropersubordinators.
1).Mywifewasmowingthelawn.Iwastryingtolistentomusic.
Whilemywifewasmowingthelawn,Iwastryingtolistentomusic.
2).Theweatherremainsfine.Iseenoreasonwhythevillagefeteshouldnotbeasuccess.
If/Providedthattheweatherremainsfine,Iseenoreasonwhythevillagefeteshouldnotbeasuccess.
3).Helosthiscell-phonesomewhere.Thelecturehallmightbetheplace.
Thelecturehallmightbetheplacewherehelosthiscell-phone.
4).Thetravelersweretrappedinthecave.Oneofthemhasalreadybeenbroughtout.
Oneofthetravelerswhowastrappedinthecavehasalreadybeenbroughtout.
5).Hewaslying.Thatisquiteobvious.
Itisquiteobviousthathewaslying.
6).AnAustralianfriendiscomingtoseeme.ImadehisacquaintanceinSydneylastyear.
AnAustralianfriendwhoseacquaintanceImadeinSydneylastyeariscomingtoseeme.
7).Sicknesskepthimawayfromschool.Hedidn'
tgettheprize.
Hedidn'
tgettheprizebecausesicknesskepthimawayfromschool.
8).Youpromisetocomebackintime.Youshallnotgotothepartytonight.
Youshallnotgotothepartytonightunlessyoupromisetocomebackintime.
9).LucyspokeEnglishfast.Icouldn'
tunderstandher.
Icouldn'
tunderstandLucybecauseshespokeEnglishtoofast.
10).Hiswifewaitedup.Hecamehome.
Hiswifewaitedupuntilhecamehome.
5.Putawordineachblankthatisappropriatefo
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