2023年九年级暑期话题阅读天天练：身体部位含解析

第第页2023年九年级暑期话题阅读天天练：身体部位（含解析）2023年九年级暑期话题阅读天天练：身体部位

（共9题）

一、阅读理解题（共9题）

Theworldhasmanybeautifulsounds.Wecanhearthesongsofbirdsandthelaughterofpeople.Wecanlistentocoolmusicandnewsreports.Andit'sallbecauseofourears!Theybringusaworldofsounds.

Butsomepeoplecan'thearanysoundatall.Someareborn①deaf.Otherscanhearwellintheirchildhood,buttoomanyloudsoundshurttheirearslateron.

ManypeopleinChinacan'thearordinary(普通的)soundsclearly.Alargenumberofthemarechildren.Mostofthemarebornwithgoodhearing.But6childrenoutofevery1,000havehearingproblemswhentheyareborn.Andifachildhashearingproblems,usuallyheorshewillalsohavelearningproblemsatschool.

Alotofthingscancausehearingproblems.Forexample,toomuchearwax(耳垢)isnotgoodforourhearing.Andnoiselouderthan85decibels(分贝)canhurtourearsandmakeusloseourhearingforashorttimeorevenforever.

Hearingisimportantforallofus.②Soweshoulddoourbesttogiveourearsspecialcare.Don'tforgettodothefollowing:

●Trytostayawayfromplaceswithtoomuchnoise.Ifyouhavetogo,wearearplugs(耳塞).Apairofgoodearplugscancutthenoiseby30decibels.

●Whenswimming,remembertoputearplugsintoyourearstostopwaterfromgettingin.

●Neverputanythingsharp(尖锐的)intoyourears.Ifyouthinkyouhavetoomuchearwax,askyourmumordadtohelpyoucleanitout.

Ifyoukeepthesethingsinmind,youwon'thavetroubleinhearingsounds.

(1)()选出文中划线单词①的词义。

A.聋的

B.不愿意听的

C.不理的

D.瞎的

(2)Whatproblemswillthechildrenalsohaveiftheirhearingispoor

(3)完成句子，每空不超过三个词。

1.Loudernoisecanhurtthechildren'searsandmakethemlosetheirforashorttimeorevenforever.

2.Weshouldputearplugsintoourearswhileswimmingtostopwaterfromourears.

3.Thewritetellsushowtoourears.

(4)从文中找出可以替代下列的词汇或短语。

1.many—

2.common—

3.awhile—

4.haveproblem—

(5)将文中划线部分②翻译成汉语。

Everyonehasgottwopersonalities.Oneisshowntotheworldwhenyouareawake;theotherisshownonlywhenyou'reasleep.Asyouknow,peoplefrequentlychangetheirsleepingpositions(姿势)whentheysleepatnight.Scientistssaythatthepositionthatbestshowsyoursecretandrealpersonalityistheonethatyougotosleepin.▲

Ifyougotosleeponyourback,you'reaveryfrank(坦率的)person.Younormallytrustpeopleandyouareeasilyinfluenced(影响)byfashionornewideas.Youdon'tliketotroublepeople,soyouneverexpressyourrealfeelings.You'requiteshyandyouaren'tveryconfident.

Ifyougotosleeponyourstomach,youarearathersecretive(不外露的)person.Youworryalotandyou'realwayseasilyupset.You'reverydetermined(有决心的),butyouaren'tveryambitious.Youusuallylivefortodaynotfortomorrow.

Ifyougotosleepcurledup(卷曲),youareprobablyaverynervousperson.Youhavealowopinionofyourselfandyouarenotconfident.You'reoftendefensive.You'reshyandyoudon'tnormallylikemeetingpeople.Youprefertobeonyourown.You'reeasilyhurt.

Ifyougotosleeponyourside,youhaveusuallygotawell-balancedpersonality.Youknowyourstrengthsandweaknesses.You'reusuallycareful.Youhaveaconfidentpersonality.Yousometimesfeelworried,butyoudon'toftengetdepressed(沮丧的).Youalwayssaywhatyouthinkevenifitmakesothersangry.

(1)Whenispeople'ssecretandrealpersonalityshownaccordingtothepassage

A．Whentheylieinbed.

B．Whentheygotosleepatnight.

C．Whenthey'reawake.

D．Whentheychangesleepingpositions.

(2)Whichofthefollowingcanbeputintheblankofparagraph1

A．Thenwhatsleepingpositiondoyoulikebest

B．Thenwhydopeoplechangetheirsleepingpositions

C．Thendoyouwanttoknowwhatyoursecretandrealpersonalityis

D．Thendoyouwanttoknowhowsleepingpositionsinfluencepersonality

(3)Thephrase"havealowopinionof"probablymeans"_____"inEnglish.

A．lookdownonB．beproudof

C．becrazyaboutD．showinterestin

(4)Whichsleepingpositionshowsonehasawell-balancedpersonality

A．B．C．D．

Hello,boysandgirls!DoyouwanttohavehealthyteethYoucantakecareofyourteethbytakingthesetips.

Brushyourteethatleasttwiceaday—afterbreakfastandbeforebedtime.

Ifyoucan,brushafterlunchoraftersweetsnacks.Brushallofyourteeth.Spendsometimeontheteethalongthesidesandintheback.Youcanalsoletyourdentistshowyouthebestwaytobrushtogetyourteethclean.

Takeyourtimewhilebrushing.

Spendatleast2or3minuteseachtimeyoubrush.Ifyoufinditdifficult,playasongyouliketohelpkillthetime.

Besureyourtoothbrushissoft.

Askyourparentstohelpyougetanewtoothbrushevery3months.It'salsoimportanttovisitthedentisttwiceayear.Thedentistwillhelpkeepyourteethcleanandcanhelpyoufindyourtoothproblem.

Brushingisn'ttheonlywaytokeepyourteethhealthy.

Youalsoneedtobecarefulaboutwhatyoueatanddrink.Remember,toomuchsugarisbadforyourteeth.Eatlotsoffruitandvegetablesanddrinkwaterinsteadofsoda.Anddon'tforgettosmile!

(1)Youshouldspendatleastbrushingyourteeth.

(2)Weallknowthatisbadforourteeth.

(3)Howoftendoyougetanewtoothbrush

(4)找出并写下全文的主题句。

(5)将文中画线句子译成汉语。

It'salsoimportanttovisitthedentisttwiceayear.

Yourbodyisspecial—notwopeopleintheworldarealike.Althoughyouaredifferentfromeveryoneelse,youhaveexactlythesamebodypartsasthepeoplearoundyou,doingdifferentjobsthatkeepallofusalive.

Whatisinsidemyhead

Yourheadhousesthemostvaluablepartofyourbody—yourbrain.Asyouarereading,youreyessendpicturestoyourbrainwhichmakesmeaningfromwhatyousee.Yourbrainhelpsyoutorememberandthink,andmakessureyourbodyisdoingwhatitshould.

Whatismyskin(皮肤)for

Yourskincoversyourbody.Inmostpartsofyourbody,theskinisjustasthickashalfacentimeter.Ifyouhaveyourskincut,itwillhaveaquickcureandstopvirusesfromgettingintoyourbody.Yourskinalsohelpsyoufeeltheheatandcoldnessoftheenvironmentaroundyou.Hairgrowsfrominsidetheskin.Whenyoufeelhot,extraheatcomesoutthroughyourskin.Asaresult,yourbodytemperaturedrops.

HowdoImove

Muscles(肌肉)arefoundinmostpartsofyourbody.Theyworkwithyourbonestohelpyoumove—wheneveryoucryorsmile,eatorspeak,walkordance,etc.

WhydoIbreathe

Yourbodyneedstotakeinoxygenfromtheairandgiveouttheunwantedcarbondioxideinthebody.Whenyoubreathe,aircomesthroughyournoseandmouthintoyourlungs(肺)whereoxygenflowstodifferentpartsofyourbody.

Whatmakesmesneeze

Whendustorastrongsmellgetsintoyournose,yousneeze.Thisisthewayyourbodycleansupthedustinyournose.Yourlungspushouttheairandtrytoclearyournose.

Whatdoesmyheartdo

Yourheartisaveryspecialmuscle.Itisslightlybiggerthanyourfist(拳头)andgrowsbiggerasyoudo.Ifyouplaceyourhandonyourheart,youwillfeelyourheartbeatingwhichforcesbloodtomovearoundyourbody.

(1)Theunderlinedword"houses"inthepassageprobablymeans_____.

A．storesB．locksC．createsD．builds

(2)Ifyouhavenoskincoveringyourbody,whatwouldhappen

A．Extraheatcanonlystayinsideourbody.

B．Virusescan'tgetintoourbodyeasily.

C．Wecan'tfeelthechangesintemperature.

D．Ourbodycanbeguardedbyourhair.

(3)Whatisthetruefactaboutyourbody

A．Ourheartisthesamesizefrombirth.

B．Wetakeincarbondioxidetostayalive.

C．Ourmusclesstopworkingwhenwenod.

D．Sneezingisawaytoclearournose.

(4)Whichisthebesttitleforthispassage

A．WhatYourBodyNeedsB．HowYourBodyWorks

C．WhyYourBodyGrowsD．WhenYourBodyMoves

Youmustthinkacomputeristhebestthingintheworld,rightYoumustthinkitworksatasuperspeedandcandoeverythingWell,it'snot!Infact,thebrainismuchmorepowerfulthananysupercomputer!Thinkaboutwhenaglassisjustabouttofalloffthetable.Yourbraincontrolseverythingthatyouneedtodotosavethatglassfromfalling.Firstyoureyescheckoutwhat'sgoingon,thentellyourbrain,andyourbraindecideshowquicklyyouneedtoreact(反应),andthenyourmuscles(肌肉)gointoaction.Thatisjustfromyourbrain.Nocomputercouldevercomeclosetothat!

Thebrainweighsjust3pounds,butitcontrolseverythingyoudofromthinking,learning,feelingeventobreathingandyourheartbeating.Eventhoughthebrainisjust2%ofyourbodyweight,itusesaround20%ofallyourenergyinyourbody.Thatisalotforsuchasmallorgan(器官).Thereareabout100billiontiny,tinylittlecells(细胞)inyourbrain.Therearesomanythatitwouldtakeyouover3,000yearstocountthemall!

Yourbrainstopsgrowingwhenyou're18,butitactuallykeepsondevelopingandlearningnewthings.Soyourparentsarereallysupersmart!Youwon'tbeabletofoolthem!Believeitornot,yourbrainNEVERstopsworking.Evenduringsleeping,thebrainworksforlong-termmemoryestablishment(建立).Itisrealizedthatthebrainisthesecondorganinthebodyastheheartthatneverstopsduringhumanlives.

Soeveryoneshouldbeproudofsuchagiftofnature.

(1)InParagraph1,thewriterwantstotellus_____.

A．eyesandmusclesreactquickly

B．thebraincontrolseverythinginyourbody

C．thecomputeristhebestthingintheworld

D．thebrainismorepowerfulthananycomputer

(2)InParagraph2,theunderlinedword"That"refersto(指的是)_____.

A．thebodyweight

B．2%ofthebodyweight

C．allenergyinthebody

D．around20%oftheenergyinthebody

(3)WhichisRIGHTaccordingtothepassage_____

A．Thebraindoesn'tworkduringsleeping.

B．Thebrainistheonlyorganthatneverstops.

C．Thebrainkeepsgrowingduringhumanlives.

D．Thebrainkeepsondevelopingduringhumanlives.

(4)Whichwordcanbestdescribethebrainaccordingtothepassage_____

A．Magic.B．Quick.C．Light.D．Developing.

(5)Inwhichmagazinecanthepassagebefoundmostprobably_____

A．BusinessWeeklyB．Medicine

C．ScienceD．Sports

Teethareimportant.Strong,healthyteethhelpyouchew(咀嚼)foodsthathelpyougrow.Theyhelpyouspeakclearly.Andyes,theyhelpyoulookbest.Herearesometipsforyoutotakecareofyourteeth:

1.Brushyourteeththerightway.

Brushyourteethatleasttwiceadayafterbreakfastandbeforebedtime.Ifyoucan,brushafterlunchoraftersweetsnacks,too.Brushallofyourteeth,notjustthefrontones.Spendtimebrushingteethalongthesidesandbackofyourmouth.Spendatleastthreeminuteseachtimeyoubrush.Playasongyouliketohelppassthetime.Getanewtoothbrusheverythreemonths.Whenyoubuytoothbrush,besureithassoftbristles(鬃毛).

2.Learnhowtofloss(用牙线剔牙)yourteeth.

Flossingisaveryimportantwaytokeepyourteethhealthy.Foodmayhide__①__twoteeth.Flossingcanhelpgetridofit.You'llneedtoflossyourteethatleastonceaday.

3.Havegood__②__habits.

Youneedtobecarefulaboutwhatyoueatanddrink.Eatingsugarisamajorcauseoftoothdecay(蛀牙).Eatlotsoffruitsandvegetablesanddrinkwaterinsteadofsoda(苏打).

(1)Howoftenatleastshouldwebrushourteethaday(Nomorethan3words)

(2)Howoftenshouldwechangeourtoothbrushes(Nomorethan3words)

(3)Why'steethimportant(Nomorethan15words)

(4)Fillintheblankswithoneproperwordeach.(在文中的空白处各填入1个合适的单词)

①②

(5)TranslatetheunderlinedsentenceintoproperChinese.(把画线部分翻译成汉语)

阅读下列短文，根据短文内容，从短文后各题所给的选项中，选择最佳选项。

Yourbraincontrolseverythingyoudo.Itmakesitpossibleforyoutothink,learn,createandfeel;toblink(眨眼)andbreatheandforyourhearttobeat一thisfantasticcontrolcenterisyourbrain.Itissoamazingthatafamousscientistoncecalledit"themostcomplex(复杂)thingwehaveyetdiscoveredinouruniverse".

Canthissmallgreyorgan(器官),whichweighslessthanoneandahalfkilos,reallydosomuchAmazingly,yourbraincontainsabout100billionneurons(神经元)—itwouldtakeyouover3,000yearstocountthemall.Believeitornot,theactivityinyourbrainneverstops.Yourneuronscreateandsendmoremessagesthanallthephonesintheworld.Andalthoughoneneuroncreatesonlyalittleelectricity,allyourneuronstogethercanproduceenoughelectricitytopoweralightbulb(灯泡).

SoexactlyhowfastdoesyourbrainworkWell,imaginethis:abeelandsonyourfoot.Neuronsinyourskinsendthisinformationtoyourbrainataspeedofmorethan240kilometersperhour.Yourbrainthenusesotherneuronstosendthemessagebacktoyourfoottoshakethebeeoffquickly.Theseneuronscansendthisinformationatmorethan320kilometersperhour.Nocomputerhasyourbrain'sunbelievableabilitytodealwiththeamountofinformationcomingfromyoureyes,earsandothersensoryorgans.

ButhowdoesyourbrainallowyoutolearnthingsthatyouwilluseinthefutureThestructure(结构)ofyourbrainchangeseverytimeyouhaveanewthought,rememberorlearnsomething.Forexample,ridingabikeseemsimpossibleatfirst,butsoonyouareabletodoit.HowAsyoupractice,yourbrainsends"bikeriding"messagesagainandagain.Soon,theactionsarelearntandyouareabletorideabikeeasilyfromthenon.

(1)Fromthepassageweknowthatneurons_____.

A．receivemessagesveryslowlyB．areonlyfoundinyourskin

C．sendmessagestoyourbrainD．needelectricitytowork

(2)InParagraph3,thewritermentionscomputersto_____.

A．comparethemwiththehumanbrain

B．showhowfasttheyhavebecome

C．saythatcomputershavenoabilities

D．askpeopletousecomputersmore

(3)Whenyouhaveanewthought,_____.

A．yourbrainwillpoweralightbulb

B．yourheartbeatsfaster

C．youremembersomething

D．thestructureofyourbrainchanges

(4)Thearticleismainlyabout_____.

A．allthestepswhenyourbrainlearnsthings

B．whatanunbelievableorganthehumanbrainis

C．howthebrainmakespeoplesmarterthancomputers

D．thethingsyoucandotomakeyourbrainworkfaster

Youmustthinkacomputeristhebestthingintheworld,rightYoumustthinkitworksatasuperspeedandcandoeverythingWell,it'snot!Infact,thebrainismuchmorepowerfulthananysupercomputer!Thinkaboutwhenaglassisjustabouttofalloffthetable.Yourbraincontrolseverythingthatyouneedtodoistosavethatglassfromfalling.Firstyoureyescheckoutwhat'sgoingon,thentellyourbrain,andyourbraindecadeshowquicklyyouneedtoreact,andthenyourmusclesgointoaction.Thatisjustfromyourbrain.Nocomputercouldevercomeclosetothat!

Thebrainweighsjust3pounds,butitcontrolseverythingyoudofromthinking,learning,feelingevenbreathingandyourheartbeating.Eventhoughthebrainisjust2%ofyourbodyweight,itusesaround20%ofallyourenergyinyourbody.Thatisalotforsuchasmallorgan.Thereareabout100billiontiny,tinylittlecellsinyourbrain.Therearesomanythatitwouldtakeyouover3,000yearstocountthemall!

Yourbrainstopsgrowingwhenyou're18,butitactuallykeepsondevelopingandlearningnewthings.Soyourparentsarereallysupersmart!Youwon'tbeabletofoolthem!Believeitornot,yourbrainNEVERstopsworkingevenduringsleeping,thebrainworksforlong-termmemoryestablishment.Itisrealizedthatthebrainisthesecondorganinthebodyastheheartthatneverstopsduringhumanlives.

(1)InParagraph1,whatdoesthewriterwanttotellus

A．Eyesandmusclesreactquickly.

B．Thebraincontrolseverythinginyourbody.

C．Thecomputeristhebestthingintheworld.

D．Thebrainismorepowerfulthananycomputer.

(2)Whatdoestheunderlinedword"That"referto

A．Thebodyweight

B．2%ofthebodyweight.

C．Around20%oftheenergyinthebody.

D．Allenergyinthebody.

(3)WhichisRIGHTaccordingtothepassage

A．Thebrainkeepsondevelopingduringhumanlives.

B．Thebrainkeepsgrowingduringhumanlives.

C．Thebrainistheonlyorganthatneverstops.

D．Thebraindoes'workduringsleeping.

(4)Inwhichmagazinecanthepassagebefoundmostprobably

A．Businessweekly.B．Medicine.

C．Sports.D．Science.

阅读选择

HaveyourparentsevertoldyouanystrangeorscarythingsaboutprotectingyoureyesForexample,theymighthavesaidthatyou'dgoblindfromreadinginthedark,butyoucouldmakeupforitbyeatingalotofcarrots.

Thisisjustoneofthewrongideasyoumayhaveheardof.Belowteenshaspickedoutscientificexplanationsforthreemistakesthepeopleoftenmakeabouteyes.Let'stakealook.

Caneatingcarrotsimproveyoureyesight

CarrotsarerichinVitaminA,whichisessentialforoureyes'generalhealth.VitaminAhelpstheeyestomakelightintosignals,allowingpeopletoseeinlowlightconditions.However,eatingmorecarrotsdoesn'thelpyouseebetter,Acertainminimumamountwillhelp,butalargenumberofcarrotswillnotgiveyousuperhumanvisionorallowyoutogetridofyourglasses.

Ifyourparentshavebadeyesight,willyouhavebadeyesight,too

Myopia(近视)canbepassedfromparentstochildren.AstudybytheAmericanOptometricAssociationfoundthatifbothparentsaremyopia,there'sa33to60percentchancethatthechildis.Forchildrenwhohaveoneparentwithmyopia,thechanceis23to40percent,andit'sdownto6to15percentforkidswithnon-myopiaparents.Sonomatterhowbadyourparents'eyesightis,youstillhaveachancehavinggoodeyesight.

Isittruethatpeoplewhoarecolorblindcan'tseecolors

Colorblindnessdoesn'tmeanthatsomeonecan'tseecolorsatall,likeablackandwhitemovie.Mostcommonly,itmeansthatsomeonehasdifficultytellingcertaincolorsapart,usuallygreenandredorblueandyellow.Colorblindnessisusuallyaconditioncausedbynothavingcolorconecellsorthecellsnotworking.Ifthecellsdon'trespondintherightwaytodifferencesinwavelengthsoflight,colorblindnesshappens.

Therearedifferentlevelsofcolorblindness.Somepeoplecannottellthedifferencebetweencolorsindimlight,whileothershavedifficultyinanylight.Inthemostseriousformofcolorblindness,everythingisseeninshadesofgray.

(1)Accordingtothepassage,whichistheRIGHTideaabouteatingcarrots

A．Eatingcarrotsdoesn'thelppeopleseebetter.

B．Peopleneedtoeatasmanycarrotsaspossible.

C．Eatingcarrotsisgoodforeyes,butpeopledon'tneedtoeatalotofthem.

D．Eatingalotofcarrotsisonlyappropriateforthosewhoworkinlowlightconditions.

(2)Sam'smotherisshortsighted,buthisfatherisnot.Howmuchcouldbehischancesofhavinggoodeyesight

A．6-15%.B．23-40%.C．33-60%.D．60-77%.

(3)Howdoestheauthordescribecolorblindnessaccordingtothepassage

A．Mostpeoplewhoarecolorblindcanonlyseegrey.

B．Lackingcolorconecellscancausecolorblindness.

C．Thosewhocan'ttellgreenfromredarenotreallycolorblind.

D．Mostpeoplewhoarecolorblindcanonlyseeblackandwhite.

(4)What'sthebesttitleofthispassage

A．MisunderstandingsAboutEyes.

B．AdviceOnProtectingYourEyes.

C．ReasonsForBadEyesightAndColorBlindness.

D．MedicalInformationAboutImprovingYourVision.

答案

一、阅读理解题（共9题）

1.【答案】

(1)A

(2)Learningproblemsatschool.

(3)①hearing②gettingin③protect

(4)①alotof②ordinary③ashorttime④havetrouble

(5)所以我们应该尽最大努力给予我们的耳朵特殊呵护。

【解析】

(1)分析“Butsomepeoplecan'thearanysoundatall.Someareborndeaf.Otherscanhearwellintheirchildhood,buttoomanyloudsoundshurttheirearslateron.”可知，此处描述一些人听不到的原因，一些是天生听不到，另一些是后天原因造成的。所以推测deaf是“聋的”含义。

(2)根据“Andifachildhashearingproblems,usuallyheorshewillalsohavelearningproblemsatschool.”可知，如果一个孩子有听力问题，通常他或她在学校也会有学习问题。

(3)根据“Andnoiselouderthan85decibels(分贝)canhurtourearsandmakeusloseourhearingforashorttimeorevenforever.”可知，噪声会损害孩子们的耳朵，让他们在短时间内甚至永远失去听力。所以第一处填hearing。根据“Whenswimming,remembertoputearplugsintoyourearstostopwaterfromgettingin.”可知，当游泳时，记得把耳塞进你的耳朵，以防止水进入。所以第二处填gettingin。根据文章内容可知，本文主要是告诉我们保护耳朵的方法，所以第三处填protect。

(4)many，翻译为“许多”，可用文中alotof替代；common，翻译为“普通的”，可用文中ordinary替代；awhile，翻译为“一会儿”，可用文中ashorttime替代；haveproblem，翻译为“有问题”，可用文中havetrouble替代。

(5)本句是so引导的结果状语从句，翻译为“所以”；we，翻译为“我们”；should，翻译为“应该”；doone'sbesttodosth，翻译为“尽某人最大努力去做某事”；give，翻译为“给予”；ourears，翻译为“我们的耳朵”；specialcare，翻译为“特殊呵护”。

2.【答案】

(1)B

(2)C

(3)A

(4)D

3.【答案】

(1)2or3minuteseachtime

(2)eattoomuchsugar

(3)every3months.

(4)Youcantakecareofyourteethbytakingthesetips.

(5)一年看两次牙医也很重要。

【解析】

(1)细节理解题。根据Takeyourtimewhilebrushing.下的第一句：Spendatleast2or3minuteseachtimeyoubrush.每次刷牙至少花2-3分钟。

(2)细节理解题。根据Brushingisn'ttheonlywaytokeepyourteethhealthy.下的第二句：Remember,toomuchsugarisbadforyourteeth.记住，吃太多的糖对你的牙齿不好。

(3)细节理解题。根据Takeyourtimewhilebrushing.下的第一句：Askyourparentstohelpyougetanewtoothbrushevery3months.每三个月让你的父母帮你买一把新牙刷。可知每三个月要换一次牙刷。

(4)主旨理解题。根据第一段最后一句：Youcantakecareofyourteethbytakingthesetips.你可以通过这些方法来保护你的牙齿。可知本文主要介绍了一些保护牙齿的方法。

(5)句意理解题。“It'salsoimportanttodosth.”做某事是重要的。“visitthedentist”看牙医。“twiceayear.”一年两次。

4.【答案】

(1)A

(2)C

(3)D

(4)B

【解析】

(1)词义猜测题。根据Yourheadhousesthemostvaluablepartofyourbody—yourbrain.可推测，脑袋里有身体最有价值的东西——大脑。又知store的意思是储存；lock的意思是上锁；creating意为创造；build意思是建造，所以此处应选stores。

(2)细节理解题。根据Ifyouhaveyourskincut,itwillhaveaquickcureandstopvirusesfromgettingintoyourbody.Yourskinalsohelpsyoufeeltheheatandcoldnessoftheenvironmentaroundyou.Hairgrowsfrominsidetheskin.Whenyoufeelhot,extraheatcomesoutthroughyourskin.Asaresult,yourbodytemperaturedrops.可知，皮肤可以阻挡细菌进入身体，可以帮你感知冷暖；可以帮你降温。所以此处应选Wecan'tfeelthechangesintemperature。

(3)推测判断题。根据Itisslightlybiggerthanyourfist(拳头)andgrowsbiggerasyoudo可知，心脏随着身体的成长而成长，所以选项A是错误的。根据Yourbodyneedstotakeinoxygenfromtheair可知，身体需要的是氧气，所以选项B是错误的。根据Theyworkwithyourbonestohelpyoumove可知，你的肌肉与骨头帮着你活动，所以选项C是错误的。根据Thisisthewayyourbodycleansupthedustinyournose.可知，打喷嚏是帮着你清理鼻子中的异物，所以选项D是正确的。

(4)主旨大意题。通读全文可知，本文通过大脑、皮肤、肌肉、喷嚏、呼吸等方面阐述了我们的身体是如何工作的，所以标题应为HowYourBodyWorks。

5.【答案】

(1)D

(2)D

(3)D

(4)A

(5)C

【解析】

(1)段落大意题，根据Infact,thebrainismuchmorepowerfulthananysupercomputer可知讲述的是电脑远远比不上人脑，故选D。

(2)细节理解题，前面提到itusesaround20%ofallyourenergyinyourbody用掉所有能量的20%，由此可知是能量消耗较大，故选D。

(3)细节理解题，根据Yourbrainstopsgrowingwhenyou're18,