TEENS 初三22-23年第16期总第708期课件2Making sense of the big (P6) 课件

Makingsenseofthebig(P6)Pre-readingMakingsenseofthebig(P6)Pre-readingHowdoyoufeelwhenyouseelargenumbers?Isitdifficulttounderstandthem?While

readingThereare8billionhumansonEarth.Thesunis150millionkilometersaway.Theuniversemayhave200billiontrillion(万亿)stars…Therebe句型

该句型经常出现在词语运用、语法填空等题型中，是一种倒装语序，该结构表示某地某处客观存在某物，使用就近原则，翻译为“有”。eg：Therearesomeflowersinthepark.Thereisapenonthetable.While

reading1.Whatmightonequettareferto?A.Onefollowedby27zeros.B.Onefollowedby30zeros.C.Adecimalpoint(小数点)followedby26zeros.D.Adecimalpointfollowedby29zeros.1.审题,标注关键词onequetta。2.快读锁定出处并理解文章。3.出处：第二段。While

readingAsscientistsexploretheworldwithmoreandmoreadvanced(先进的)tools,thenumbersusedarealsobecomingbigger.Recently,scientistsaddedfournewnamesforreallybigandreallysmallmeasurements(度量):ronna(1027),quetta(1030),ronto(10-27)andquecto(10-30).quetta(1030)1.Whatmightonequettareferto?A.Onefollowedby27zeros.B.Onefollowedby30zeros.C.Adecimalpoint(小数点)followedby26zeros.D.Adecimalpointfollowedby29zeros.30zerosWhile

readingAsscientistsexploretheworldwithmoreandmoreadvanced(先进的)tools,thenumbersusedarealsobecomingbigger.Recently,scientistsaddedfournewnamesforreallybigandreallysmallmeasurements(度量):ronna(1027),quetta(1030),ronto(10-27)andquecto(10-30).1.as表示随着、因为、尽管等三种词义时，as为连词，引导时间/原因/让步状语从句，即as连词引导词+完整句子。此处译为“随着”。2.“比较级+and+比较级”或“moreandmore+原级”表示“越来越......”eg：It’sgettingcoolerandcooler.天气越来越凉爽。

Thewindbecamemoreandmoreheavily.

风变得越来越大。While

reading2.AccordingtoParagraph3,wecanlearnthat_____.A.therewerenolargenumbersinancienttimesB.ancientpeopledidn’tneedtounderstandbignumbersC.Humanbrainsdon’thaveaproblemdealingwithbignumbersD.bignumbersappearthroughouthumanevolution1.审题,标注题干和选项中的关键词

Paragraph3等。2.快读锁定出处并理解文章。3.出处：第三段。While

reading

Doyoufindthesenumberstoobigtomakesense?Don’tworry.Almostallhumanbrainshaveaproblemdealingwithbignumbers.“Whilelivingandevolving(进化),ourancestors(祖先)hadnoneedtodevelopsuchaskill,”USmathematicianSpencerGreenbergtoldthesciencewebsiteGizmodo.Earlyhumansonlyneededtounderstandsmallquantities(数量),likethenumberofpeopleintheclan(族群),orhowmanyanimalstheyhadcaught.“Soit’snotimportanttodifferentiatelargefromverylargefromanevolutionaryperspective(进化的角度).”too...to太...以至于不能...1.have

aproblem(in)doingsth.在做某事上有困难2.dealwiththeproblems解决问题

havenoneedtodosth.无需做某事。

thenumberof......的数量anumberof...大量、许多重点句型：It’sadj.forsb.todosth.While

reading2.AccordingtoParagraph3,wecanlearnthat_____.A.therewerenolargenumbersinancienttimesB.ancientpeopledidn’tneedtounderstandbignumbersC.Humanbrainsdon’thaveaproblemdealingwithbignumbersD.bignumbersappearthroughouthumanevolution

“Whilelivingandevolving(进化),ourancestors(祖先)hadnoneedtodevelopsuchaskill,”USmathematicianSpencerGreenbergtoldthesciencewebsiteGizmodo.Earlyhumansonlyneededtounderstandsmallquantities(数量),likethenumberofpeopleintheclan(族群),orhowmanyanimalstheyhadcaught.“Soit’snotimportanttodifferentiatelargefromverylargefromanevolutionaryperspective(进化的角度).”While

reading3.ThemainideaofParagraph4isthat_____.A.thereisnoneedforpeopletounderstandlargenumbersB.peoplehavedifficultyimagininglargenumbersofthings

C.100istheupperlimitofahuman’simaginationfornumbersD.humanbeingsarenotgoodatimaginingnumbers1.主旨大意题，考察概括总结能力。2.审题,标注关键词Paragraph4等。3.快读锁定出处并理解文章。4.出处：第四段。上限

While

reading

“Wecaneasilyimaginefivethings,”saidGreenberg.“Wecanevenroughlyimagine100things–bypicturingalargecrowd.Butwhenwe’retalkingaboutmillionsofthings,ourabilitytoimaginecompletelyfails.”3.ThemainideaofParagraph4isthat_____.A.thereisnoneedforpeopletounderstandlargenumbersB.peoplehavedifficultyimagininglargenumbersofthingsC.100istheupperlimitofahuman’simaginationfornumbersD.humanbeingsarenotgoodatimaginingnumbersWhile

reading4.Accordingtothestory,wecanunderstandbig

numbers

by_____.A.comparingthenumberstomoneyB.imagininghowmanypeoplethereareonEarthC.thinkingabouthowmanysoccerstadiumswehaveD.turningthemintosomethingwearefamiliarwith1.审题,标注关键词，并翻译每一个选项。2.快读锁定出处。3.出处：第五段。While

reading

“Wecaneasilyimaginefivethings,”saidGreenberg.“Wecanevenroughlyimagine100things–bypicturingalargecrowd.Butwhenwe’retalkingaboutmillionsofthings,our

abilitytoimaginecompletelyfails.”1.roughly，副词，作副词时意为“粗略地；大致地”；rough，形容词，意为“粗糙的”eg：Roughlyspeaking,wereceiveaboutsixtylettersaweekonthesubject.关于这个问题，粗略地说，我们每周能收到大约六十封来信。2.theabilityto...的能力While

readingHowever,therearesomemethodsthatcanhelpusbetterunderstandbignumbers.Onewayistoturnbignumbersintosomethingyouarefamiliarwith.Forexample,ifimagining400,000peopleistoohard,youcanthinkthatanaveragesoccerstadiumcanholdaround40,000people.Then400,000peoplemean10soccerstadiumsofpeople.Orifyouhave1,000yuan,thenamillionairehas1,000timesmoremoneythanyou.4.Accordingtothestory,wecanunderstandbignumbersby_____.A.comparingthenumberstomoneyB.imagininghowmanypeoplethereareonEarthC.thinkingabouthowmanysoccerstadiumswehaveD.turningthemintosomethingwearefamiliarwithWhile

readingHowever,therearesomemethodsthatcanhelpusbetterunderstandbignumbers.Onewayistoturnbignumbersintosomethingyouarefamiliarwith.Forexample,ifimagining400,000peopleistoohard,youcanthinkthatanaveragesoccerstadiumcanholdaround40,000people.Then400,000peoplemean10soccerstadiumsofpeople.Orifyouhave1,000yuan,thenamillionairehas1,000timesmoremoneythanyou.1.if引导条件状语从句，意为“如果...就...”三种常见句型考察：主将从现、主情从现、主祈从现。此处为主情从现，主句用一般现在时时态，从句用含有情态动词的句子。2.Youcanthinkthatanaveragesoccerstadiumcanholdaround40,000people.that引导宾语从句，可省略，无实义。3.倍数+比较级+thaneg：Thehallisfivetimesbiggerthanourclassroom.

这个大厅比我们的教室大五倍。While

reading5.Whatcanweinferfromthestory?A.Mathisthebestdisciplineforustounderstandtheworld.B.Peoplecannotunderstandnumbersbydoingcalculations.C.Extremelylargenumberscannotbecalculated.D.Calculationshelpusdealwithlargenumbers.1.推断题，抓住文章主旨关键词，进行梳理推测。2.审题,标注选项中关键词。2.快读锁定出处并理解文章。3.出处：第六段。推断

While

reading

Needlesstosay,therearelimitstothesemethods.“Thisiswhyweoftenjust‘dothemath’,”saidGreenberg.“Wecanworkwithextremely(极其)largenumbersincalculationsandgetusefulanswers.Wejustcan’tnecessarilygrasp(理解)thenumbersthroughoutthatprocess.”5.Whatcanweinferfromthestory?A.Mathisthebestdisciplineforustounderstandtheworld.B.Peoplecannotunderstandnumbersbydoingcalculations.C.Extremelylargenumberscannotbecalculated.D.Calculationshelpusdealwithlargenumbers.workwith=dealwithWhile

reading

Needlesstosay,therearelimitstothesemethods.“Thisiswhyweoftenjust‘dothemath’,”said