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Unit2
UnderstandingeachotherⅠⅡⅢⅠ.阅读理解AAasrithaDurisetirecentlynoticedhergrandmother’sdifficultyopeningabottlecap.Fortunately,shefoundasolutioninhereighth-gradeengineeringclassatCarsonMiddleSchoolinHerndon,Virginia,whoseassignmentwastoadaptexistingproductstomakedailylifeeasierforpeoplewithchallenges.Aasritha’screativitykickedinassheresearchedexistingbottle-openingdevices.Sheusedapieceofwoodshapedlikeacellphoneandputthreeholesonit,eachindifferentsizeandlinedwithalayerofdried,stickyhotglue,whichprovidedfirmgrips(防滑力)forcommonbottlecaps.Withasimpletwisting(拧)motion,hergrandmothercouldopenbottleswithoutassistance.ⅠⅡⅢ“Studentsintheclassusedmorethantheirmath,physicsandtoolskills.
Theyalsolearnedtolookatproblemsfromanother’spointofview,”saidTeacherMarkBolt.“Engineersneedtoputthemselvesintheirproductusers’shoestobuildeffectivesolutions.”Otherstudentsintheclassalsoshowedsensitivityastheywatchedfriendsandfamilystrugglewithdailytasks.MichaelKuwashimanoticedhowdyslexia—areadingdisorderthatthebraintendstoconfusetheorderofnumbers,lettersandotherimages—madeitdifficultforafriendtofollowalongonpagesfulloftext.Therefore,Michaelcreatedasmalladjustablewindow-blind-styledevice.“Myfriendcouldisolate(分离)smallsectionsoftextwhilereading,”hesaid.ⅠⅡⅢArjanGargfocusedonadifferentproblem.Sometimesputtingonclothescanbehardforpeoplewithalimitedrangeofmotion.Arjancreateda“dressingstick”usingfourwoodsticksofdifferentsizestofitdifferentclothing.Thestudentstrieddifferentversionsoftheirproductsalongthewaytomakethebestonetoshowtheclass.ⅠⅡⅢRatherthanrequirestep-by-stepdirectionsforcreatingtheirprojects,Boltpreferredtoleavestudents’creativepathsopen.“Ifwewanttodobetter,wehavetohaveachancetofail,”hesaid.【语篇解读】本文是一篇说明文。文章主要介绍了在Carson
Middle
School八年级的机械工程课上,学生们不仅学会了通过对现有设备进行改造使周围人的生活更加便利,而且还学会了站在他人的角度思考问题,关心他人的需求。ⅠⅡⅢ1.WhydidAasrithacreateanewbottle-openingdevice?A.Shehopedtogetahigherscore.B.Shewasinterestedinengineering.C.Shehaddifficultyopeningbottlecaps.D.Shewantedtohelphergrandmother.√推理判断题。由第一段内容可知,Aasritha要发明一种新的开瓶装置是因为她想帮助她的祖母。故选D项。ⅠⅡⅢ2.Whatdidstudentslearnfromtheclass?A.Workingwithothers.B.Conductingfieldexperiments.C.Understandingothers’feelings.D.Communicatingwithproductusers.√细节理解题。由文章第三段中的“They
also
learned
to
look
at
problems
from
another’s
point
of
view”可知,该课程教会学生们理解他人的感受。故选C项。ⅠⅡⅢ3.Howdidstudentsfinishtheirassignment?A.Withtheaidofaguidebook.B.Throughtrialanderror.C.Withthehelpofclassmates.D.Underthedetailedinstructions.√推理判断题。由文章最后一段中的“Rather
than
require
step-by-step
directions
for
creating
their
projects,Bolt
preferred
to
leave
students’
creative
paths
open.”可知,学生是通过自主探索、试验来完成创造的。故选B项。ⅠⅡⅢ4.Whatisthetextmainlyabout?A.Aninspiringclass.B.Anexcellentteacher.C.Somescientificmethods.D.Sometalentedstudents.√主旨大意题。根据全文内容,尤其是第一段内容和第三段中的“Students
in
the
class
used
more
than
their
math,physics
and
tool
skills.They
also
learned
to
look
at
problems
from
another’s
point
of
view”可知,文章主要讲述Carson
Middle
School八年级的机械工程课帮助学生们创造了一些设备,同时教会学生从他人角度思考问题,因此文章主要讲述了一门有启发性的课。故选A项。ⅠⅡⅢBYoudrinkdietsodaenjoyingthesweettastewithouttheguiltofcalories.Butscientistshavelongsuspectedalinkbetweenartificialsweeteners(甜味剂)andobesityinhumans.Anewstudysuggeststhatartificialsweetenersmaynotbeasharmlessasoncethought.Theymaynotonlydisturbthemicrobes(微生物)livinginthebodiesofhumans,butsomemayevenincreasetheriskofweightgain.ⅠⅡⅢEveryhumanhostsauniquegroupofmicrobes.Thenumberofcellsthatmakeupthisvastcommunity,calledmicrobiome(微生物群),isextremelylargeinthehumanbody.Itnotonlyhelpsdigestionbutalsoprotectsagainstdiseases.
Thedisturbancetothemicrobiomeoccursbecauseartificialsweeteners,
althoughzerocaloriesforhumans,serveasnutrientsforsomemicrobes,whichthenincreaserapidly.Thiscausesanimbalanceinmicrobialpopulationsthatcanleadtodiseases.ⅠⅡⅢInthestudy,scientistsfirstchose1,375volunteerstoseeiftheyconsumedartificialsweetenersintheirdailylives.Then,theyidentified120volunteerswhowerenotpreviouslyexposedtoartificialsweetenersandgavethemoneofthefourcommonlyusedsweeteners—saccharin,sucralose,aspartame,andsteviafortwoweeks.Afterthat,totesthowartificialsweetenersaffectthebody’sabilitytocontrolthesuddenincreaseofbloodsugarafterconsumingsugaraspartofmeals,volunteersweremonitoredforbloodglucose(血糖)
levelsafteratestglucosedrink.ⅠⅡⅢThestudyshowedthatsucraloseandsaccharinpushedthebodytowardsglucoseintolerance,which,ifsustained,cancauseweightgain.However,
aspartameandsteviadidnotaffectglucosetoleranceatthetestedlevels.“Thestudyisthefirsttoshowthatthehumanmicrobiomerespondstoartificialsweeteners.It’salsoaconvincingstudytoshowhowthesesweetenersreallyareaffectingthehumanbody,”saysMichaelGoran,aprofessoratChildren’sHospitalLosAngeles.ⅠⅡⅢ“Thisstudyprovidesevidenceofbothshort-termharmfuleffectsandlong-termnegativeeffectscausedbyartificialsweeteners,”DavidKatz,anutritionspecialist,says.“Thatdoesnotmeanartificialsweetenersshouldbereplacedwithsugar.Rather,alternativeapproachestoreducingsugarintakeshouldbeconsidered.”【语篇解读】本文是一篇说明文。文章介绍了人工甜味剂并非像人们曾经以为的那样无害。ⅠⅡⅢ5.Whatdoesthenewstudyreveal?A.Dietsodacontainsmorecaloriesthansugarydrinks.B.Exercisecanhelppeoplereducetheriskofdiseases.C.Artificialsweetenershavenegativeeffectsonhumans.D.Obesityisthemostcommonhealthproblemamongadults.√细节理解题。根据第一段中的“A
new
study
suggests
that
artificial
sweeteners
may
not
be
as
harmless
as
once
thought.”可知,之前人们认为喝无糖饮料无害健康,而这项新的研究表明,其中的人造甜味剂是有害健康的。故选C项。ⅠⅡⅢ6.Howdosweetenersdisturbthemicrobiome?A.Itprobablydestroysthefunctionofdigestion.B.Itusuallycausesarapidlossofhealthycells.C.Itsometimesfeedsharmfulbacteriainthebody.D.Itoftenleadstoasharpgrowthofcertainmicrobes.√细节理解题。由第二段中的“The
disturbance
to
the
microbiome
occurs
because
artificial
sweeteners,although
zero
calories
for
humans,serve
as
nutrients
for
some
microbes,which
then
increase
rapidly.”可知,甜味剂为某种微生物提供营养,使它数量猛增,影响菌群平衡。故选D项。ⅠⅡⅢ7.Whichaspectoftheexperimentistalkedaboutinparagraph3?A.Itsresults.
B.Itsprocess.C.Itsbackground. D.Itssubjects.√细节理解题。由第三段中的“In
the
study,scientists
first
chose...Then,they
identified...and
gave
them...After
that,to
test...”可知,本段主要说了实验的过程。故选B项。ⅠⅡⅢ8.WhatdoesDavidKatzadvisepeopletodo?A.Introduceataxonsugarydrinks.B.Bantheuseofartificialsweeteners.C.Raisethepricesofsugar-freedrinks.D.Findotherwaystolimitsugarintake.√细节理解题。由最后一段中的“That
does
not
mean
artificial
sweeteners
should
be
replaced
with
sugar.Rather,alternative
approaches
to
reducing
sugar
intake
should
be
considered.”可知,David建议人们不要再喝有人工甜味剂的饮料,也不建议喝含糖饮料,而是应该思考别的减少糖分摄入的方法。故选D项。ⅠⅡⅢCAnumberofrecentstudiesoffamiliesinseveralAsiancountrieshelptoshedlightonhowgrandparentsareinvolvedincoparenting,whichresearchersdefineasthesharingofchildcareandupbringingresponsibilityamongtwoormoreadults.Thesestudiessuggestthatchildrenbenefitwhenparentshavestrongrelationshipswithcoparentinggrandparents.ResearcherLiXiaoweiandhercoworkersrecentlyexploredparent-grandparentcoparentinginChina,whereitisverycommon.Intheir2019study,nearly180mothersofpreschoolerscompletedquestionnaires(问卷调查)abouttheircoparenting.Themajorityoffamilieslivedinthree-generationalhouseholds,and80%offamilieshadonlyonechild.ⅠⅡⅢThequestionnaireaskedaboutpositiveaspectsoftheparent-grandparentcoparentingrelationship,likehowmuchtheyagreedandfeltcloseaswellaschallengingaspectslikehowmuchtheyhadconflictinfrontofthechild.Theresearchersalsomeasuredhowcompetentmothersfeltinusingparentingstrategiesandteachingtheirchildrenage-appropriateskills.ⅠⅡⅢThefindings?Motherswhohadstrongcoparentingrelationshipswithgrandparentstendedtofeelmoreeffectiveintheirroleasaparent,and,inturn,theirchildrentendedtobemoresociallycompetent.That’sbecausegrandparents,withtheirrichexperience,canprovidesupport,rolemodeling,andencouragementwhentheyraisechildren,whichcouldinfluencehowcompetentmothersfeelintheirparentingrole.Andwhenmothersarefeelingmoreconfident,theycanapproachparentingwithmorepositivity,whichcanboosttheirchildren’ssocialdevelopment.ⅠⅡⅢParent-grandparentcoparentingalsoseemstoinfluenceotheraspectsofchildren’sdevelopment,suchaspreschoolers’effortfulcontrol—theirabilitytoregulatehowtheyrespondtoasituationandnoticenoveltyormistakes.Forpreschoolers,itmightcomeintoplaywhentheygetagifttheydon’tlike,orhavetofigureouthowtosharetoys.ⅠⅡⅢThisresearchongrandparentshighlightsthathandlingthecoparentingrelationshipisnotwithoutitschallenges.Butgrandparents’involvementinchildren’supbringingcanbringgreatbenefitsforfamiliesandgrandparentsthemselves.【语篇解读】本文是一篇说明文。文章介绍了一项关于“孩子的祖父母与孩子的父母共同抚养孩子”的现象的调查。调查发现:当孩子的父母与祖父母关系密切时,这种共同抚养关系会使孩子受益。ⅠⅡⅢ9.Whatmightbeincludedinthequestionnaire?A.Grandparents’agegap.B.Thesupportgrandparentsgive.C.Theincomethefamilyhave.D.Grandparents’attitudetoeducation.√推理判断题。根据第三段的“The
questionnaire
asked
about
positive
aspects
of
the
parent-grandparent
coparenting
relationship,like
how
much
they
agreed
and
felt
close
as
well
as
challenging
aspects
like
how
much
they
had
conflict
in
front
of
the
child.”可知,问卷调查涉及共同抚养关系中积极的方面,由此推断祖父母给予的支持属于积极的方面。ⅠⅡⅢ10.Whatistheconclusionofthestudy?A.Parentsandgrandparentscangetalongwell.B.Mothers’abilityhasaneffectontheirchildren.C.Goodcoparentingrelationshipsbenefitchildren.D.Parent-grandparentcoparentingisbecomingpopular.√细节理解题。根据文章首段末句、第四段末句以及尾段末句可知,研究发现良好的共同抚养关系会让孩子受益。ⅠⅡⅢ11.Whatdoestheunderlinedword“it”inparagraph5probablyreferto?A.Effortfulcontrol.B.Theresponse.C.Thedevelopment.D.Themistake.√词义猜测题。根据第五段画线词前句和所在句子可知,父母和祖父母的共同养育会影响孩子的努力控制能力,因此当孩子收到不喜欢的礼物或需要弄清楚如何分享玩具时,这种控制力可能就会发挥作用。所以代词it代指前句中的“努力控制能力”。ⅠⅡⅢ12.Whatcanbethebesttitleforthetext?A.TheTrendofCoparentingIsCatchingoninAsiaB.HowYoungParentsThinkofGrandparents’HelpC.CoparentingRelationshipsAreBecomingComfortableD.WhatHappensWhenGrandparentsHelpRaiseChildren√主旨大意题。文章在首段末句“These
studies
suggest
that
children
benefit
when
parents
have
strong
relationships
with
coparenting
grandparents.”提出调查结果:在孩子的祖父母与父母关系良好的情况下,共同抚养对孩子是有益的;然后详细介绍了这项调查,最后在文章末尾再次重申这个观点,由此推断D选项“What
Happens
When
Grandparents
Help
Raise
Children”可以作为最佳标题。ⅠⅡⅢⅡ.完形填空Growingup,Iwasfortunatetohavedinnerwithmyfamilyalmosteveryday.Sometimes,thefamilydinnercircle
1
toincluderelativesstoppingby.Yet,Iknewsomefriendswhoseparentsgothomeafterdinneroreven
2
theentireevening.SoI
3
thequalitytimearoundourkitchentable,whichwitnessedcountlessvaluable
4
inmylife.
5
,mykidscannotrelatetomychildhoodmemories.Theyhavebeenleftto
6
withbabysittersmoretimesthanIwouldliketoadmit.MyhusbandandIhave
7
careers.Andweoftenendupstayingattheofficewaypastdinnertime.Whenthishappenstoooften,it
8
thebalanceofourfamily.
ⅠⅡⅢApartfromsufferingfrom
9
,whatelsecanahardworkingfamilydo?Ithinkwecanalltryto
10
ourownwaystospendtimetogether.SurelytherearedayswhenI’mtoobusytoshareamealwithmyfamily.ButIwouldmakeeffortsto
11
andchatlaterthatday,
12
settingasidecellphoneseverytime.AndIevenfindabedtimereadingwithmykidsmuch
13
.Iamalsoproudtohaveour“bigbreakfast”routineeverySaturday.Myhusbandservesastheheadchef,andmyyoungerson
14
himtomakethebreakfast.Iamawarethatmysonsaregrowingupquicklyandwillbeoutofthe
15
someday.Butnow,Iamhappytohavesomanywonderfulthingsonmyplate.
ⅠⅡⅢ1.A.widened B.formedC.lessened D.closed2.A.missed B.avoidedC.enjoyed D.recorded3.A.wasted B.treasuredC.limited D.calculated4.A.shows B.dishesC.recipes D.moments5.A.However B.OtherwiseC.Therefore D.Besides6.A.sleep B.dineC.study D.play7.A.suitable B.flexibleC.satisfying D.demanding8.A.maintains B.disturbsC.improves D.strikes9.A.fear B.angerC.guilt D.hunger10.A.predict B.createC.evaluate D.acceptⅠⅡⅢ11.A.workout B.calmdownC.holdon D.catchup12.A.unwillingly B.casuallyC.consciously D.carelessly13.A.louder B.shorterC.simpler D.sweeter14.A.assists B.guidesC.allows D.orders15.A.office B.kitchenC.house D.parkⅠⅡⅢ【语篇解读】本文是一篇记叙文。文章围绕“共享亲子时光”这一话题展开,体现亲情的可贵。1.A
根据下文“to
include
relatives
stopping
by”可知,家里的用餐规模会扩大,以容纳这些来访的亲戚。2.A
根据空前“parents
got
home
after
dinner
or
even...”可知,此处和上文形成转折关系,即父母会在晚饭时间之后回家,甚至是错过一整个晚上。3.B
设空处上文提到“I
knew
some
friends
whose
parents
got
home
after
dinner
or
even
the
entire
evening”,因此,作者十分珍惜餐桌旁的亲子时光。
4.D
根据空前的“quality
time”可知,餐桌旁见证了“我”人生中无数珍贵的瞬间。ⅠⅡⅢ5.A
结合空前“kitchen
table,which
witnessed
countless
valuable
in
my
life”与下文“They
have
been
left
to
with
babysitters”可知,作者小时候可以和父母共进晚餐,但是作者的孩子只能和保姆一起吃晚餐,因此形成转折关系。
6.B
全文围绕“一家人共进晚餐”这个话题展开,所以这里指“吃饭”。7.D
设空前的内容是作者和丈夫无法陪孩子共进晚餐,空后内容是他们经常晚餐时间后才结束工作,由此推知,作者和丈夫有着要求很高的工作。8.B
根据上文“And
we
often
end
up
staying
at
the
office
way
past
dinnertime.When
this
happens
too
often”可知,当父母总是无法陪孩子用餐时,就会打乱家中的平衡。ⅠⅡⅢ9.C
联系上文“They
have
been
left
to
with
babysitters
more
times
than
I
would
like
to
admit.”可知,“我”因不能与孩子共进晚餐而感到愧疚。
10.B
根据下文“chat”“bedtime
reading”和“‘big
breakfast’routine
every
Saturday”可知,作者是在创造自己的方式与孩子度过亲子时光。11.D
根据空前“there
are
days
when
I’m
too
busy
to
share
a
meal
with
my
family”可知,有时候“我”无法和家人一起用餐,所以“我”会努力弥补失去的亲子时光。12.C
根据空前“I
would
make
efforts
to
and
chat
later”可知,“我”会有意识地收起手机,避免外界的干扰。
ⅠⅡⅢ13.D
根据上文“when
I’m
too
busy
to
share
a
meal
with
my
family”可知,这让作者认为与孩子的睡前阅读时光更加甜蜜。14.A
根据空前内容“My
husband
serves
as
the
head
chef”可知,作者的丈夫作为主厨,儿子辅助父亲完成早餐。15.C
根据空前“I
am
aware
that
my
sons
are
growing
up
quickly”和下文“I
am
happy
to
have
so
many
wonderful
things
on
my
plate.”可知,此处指儿子们会离开家。ⅠⅡⅢⅢ.读后续写阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。Afterbeingbusyforhalfayear,myparentsdecidedtodrivemetoascenicspotoutsidethecitytohavefun.Joyfully,weplannedourdrivingroute.Then,onaDecemberSaturdaymorning,mydadstartedhiscarandwesetoffwithgreatexpectations.Beforelong,weleftthenoisycityandcametothemountains.Therewerefewvehiclesontheroadandthetreesalongsidewerepretty.Wefeltsoexcited!ⅠⅡⅢAsafewhourspassed,wedroveontoanarrowroad.Andminuteslater,wefoundarivernotfarawayfromtheroad.Thebeachwasverywide,andwewantedtohavearestthereforawhile.Somydadturnedourcaranddrovetowardsit.Soon,weweredrivingonthesandybeach.Momentslater,ourcarwheelswerestrugglingintheincreasinglysoftsand.Butmydadwantedtogetclosertotheriver.ⅠⅡⅢBeforeheregrettedit,ourcarhadgotstuckinthesand.Mydadtriedtoturnaroundormoveback,butthecardidn’tmove.Wewereworried,trappedinthemiddleofnowhere.Evenworse,itbeganrainingandwascold.Wegotoutofthecarandtriedtopushit,butfailed.Afteracoupleofminutes,weweretiredandourhairandcoatswerealittlewet.Butthecaronlysankfurtherintothesand.Anxiously,wewalkedtotheroad,eagertostopavehicleandletithelppullourcaroutofthesand.Ourcoatsandhairwerewetterandwetter.Beforethejourney,wehadn’tpreparedumbrellasorcarriedanyfood.Now,wewerehungryandcold,standingintherain.Afterwaitingforalongtime,therewasn’tonevehiclepassing.ⅠⅡⅢJustwhenwewerehelpless,wesawafarmhousenotfaraway.“Cantheyhelpus?”Iasked.
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