2023年九年級暑期話題閱讀天天練：身體部位含解析

第第頁2023年九年級暑期話題閱讀天天練：身體部位（含解析）2023年九年級暑期話題閱讀天天練：身體部位

（共9題）

一、閱讀理解題（共9題）

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(分貝)canhurtourearsandmakeusloseourhearingforashorttimeorevenforever.

Hearingisimportantforallofus.②Soweshoulddoourbesttogiveourearsspecialcare.Don'tforgettodothefollowing:

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

●Whenswimming,remembertoputearplugsintoyourearstostopwaterfromgettingin.

●Neverputanythingsharp(尖銳的)intoyourears.Ifyouthinkyouhavetoomuchearwax,askyourmumordadtohelpyoucleanitout.

Ifyoukeepthesethingsinmind,youwon'thavetroubleinhearingsounds.

(1)()選出文中劃線單詞①的詞義。

A.聾的

B.不愿意聽的

C.不理的

D.瞎的

(2)Whatproblemswillthechildrenalsohaveiftheirhearingispoor

(3)完成句子，每空不超過三個詞。

1.Loudernoisecanhurtthechildren'searsandmakethemlosetheirforashorttimeorevenforever.

2.Weshouldputearplugsintoourearswhileswimmingtostopwaterfromourears.

3.Thewritetellsushowtoourears.

(4)從文中找出可以替代下列的詞匯或短語。

1.many—

2.common—

3.awhile—

4.haveproblem—

(5)將文中劃線部分②翻譯成漢語。

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

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

Ifyougotosleeponyourstomach,youarearathersecretive(不外露的)person.Youworryalotandyou'realwayseasilyupset.You'reverydetermined(有決心的),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(沮喪的).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)找出并寫下全文的主題句。

(5)將文中畫線句子譯成漢語。

It'salsoimportanttovisitthedentisttwiceayear.

Yourbodyisspecial—notwopeopleintheworldarealike.Althoughyouaredifferentfromeveryoneelse,youhaveexactlythesamebodypartsasthepeoplearoundyou,doingdifferentjobsthatkeepallofusalive.

Whatisinsidemyhead

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

Whatismyskin(皮膚)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(拳頭)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(反應(yīng)),andthenyourmuscles(肌肉)gointoaction.Thatisjustfromyourbrain.Nocomputercouldevercomeclosetothat!

Thebrainweighsjust3pounds,butitcontrolseverythingyoudofromthinking,learning,feelingeventobreathingandyourheartbeating.Eventhoughthebrainisjust2%ofyourbodyweight,itusesaround20%ofallyourenergyinyourbody.Thatisalotforsuchasmallorgan(器官).Thereareabout100billiontiny,tinylittlecells(細胞)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．a(chǎn)llenergyinthebody

D．a(chǎn)round20%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(用牙線剔牙)yourteeth.

Flossingisaveryimportantwaytokeepyourteethhealthy.Foodmayhide__①__twoteeth.Flossingcanhelpgetridofit.You'llneedtoflossyourteethatleastonceaday.

3.Havegood__②__habits.

Youneedtobecarefulaboutwhatyoueatanddrink.Eatingsugarisamajorcauseoftoothdecay(蛀牙).Eatlotsoffruitsandvegetablesanddrinkwaterinsteadofsoda(蘇打).

(1)Howoftenatleastshouldwebrushourteethaday(Nomorethan3words)

(2)Howoftenshouldwechangeourtoothbrushes(Nomorethan3words)

(3)Why'steethimportant(Nomorethan15words)

(4)Fillintheblankswithoneproperwordeach.(在文中的空白處各填入1個合適的單詞)

①②

(5)TranslatetheunderlinedsentenceintoproperChinese.(把畫線部分翻譯成漢語)

閱讀下列短文，根據(jù)短文內(nèi)容，從短文后各題所給的選項中，選擇最佳選項。

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

Canthissmallgreyorgan(器官),whichweighslessthanoneandahalfkilos,reallydosomuchAmazingly,yourbraincontainsabout100billionneurons(神經(jīng)元)—itwouldtakeyouover3,000yearstocountthemall.Believeitornot,theactivityinyourbrainneverstops.Yourneuronscreateandsendmoremessagesthanallthephonesintheworld.Andalthoughoneneuroncreatesonlyalittleelectricity,allyourneuronstogethercanproduceenoughelectricitytopoweralightbulb(燈泡).

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

ButhowdoesyourbrainallowyoutolearnthingsthatyouwilluseinthefutureThestructure(結(jié)構(gòu))ofyourbrainchangeseverytimeyouhaveanewthought,rememberorlearnsomething.Forexample,ridingabikeseemsimpossibleatfirst,butsoonyouareabletodoit.HowAsyoupractice,yourbrainsends"bikeriding"messagesagainandagain.Soon,theactionsarelearntandyouareabletorideabikeeasilyfromthenon.

(1)Fromthepassageweknowthatneurons_____.

A．receivemessagesveryslowlyB．a(chǎn)reonlyfoundinyourskin

C．sendmessagestoyourbrainD．needelectricitytowork

(2)InParagraph3,thewritermentionscomputersto_____.

A．comparethemwiththehumanbrain

B．showhowfasttheyhavebecome

C．saythatcomputershavenoabilities

D．a(chǎn)skpeopletousecomputersmore

(3)Whenyouhaveanewthought,_____.

A．yourbrainwillpoweralightbulb

B．yourheartbeatsfaster

C．youremembersomething

D．thestructureofyourbrainchanges

(4)Thearticleismainlyabout_____.

A．a(chǎn)llthestepswhenyourbrainlearnsthings

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.

閱讀選擇

HaveyourparentsevertoldyouanystrangeorscarythingsaboutprotectingyoureyesForexample,theymighthavesaidthatyou'dgoblindfromreadinginthedark,butyoucouldmakeupforitbyeatingalotofcarrots.

Thisisjustoneofthewrongideasyoumayhaveheardof.Belowteenshaspickedoutscientificexplanationsforthreemistakesthepeopleoftenmakeabouteyes.Let'stakealook.

Caneatingcarrotsimproveyoureyesight

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

Ifyourparentshavebadeyesight,willyouhavebadeyesight,too

Myopia(近視)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、閱讀理解題（共9題）

1.【答案】

(1)A

(2)Learningproblemsatschool.

(3)①hearing②gettingin③protect

(4)①alotof②ordinary③ashorttime④havetrouble

(5)所以我們應(yīng)該盡最大努力給予我們的耳朵特殊呵護。

【解析】

(1)分析“Butsomepeoplecan'thearanysoundatall.Someareborndeaf.Otherscanhearwellintheirchildhood,buttoomanyloudsoundshurttheirearslateron.”可知，此處描述一些人聽不到的原因，一些是天生聽不到，另一些是后天原因造成的。所以推測deaf是“聾的”含義。

(2)根據(jù)“Andifachildhashearingproblems,usuallyheorshewillalsohavelearningproblemsatschool.”可知，如果一個孩子有聽力問題，通常他或她在學(xué)校也會有學(xué)習問題。

(3)根據(jù)“Andnoiselouderthan85decibels(分貝)canhurtourearsandmakeusloseourhearingforashorttimeorevenforever.”可知，噪聲會損害孩子們的耳朵，讓他們在短時間內(nèi)甚至永遠失去聽力。所以第一處填hearing。根據(jù)“Whenswimming,remembertoputearplugsintoyourearstostopwaterfromgettingin.”可知，當游泳時，記得把耳塞進你的耳朵，以防止水進入。所以第二處填gettingin。根據(jù)文章內(nèi)容可知，本文主要是告訴我們保護耳朵的方法，所以第三處填protect。

(4)many，翻譯為“許多”，可用文中alotof替代；common，翻譯為“普通的”，可用文中ordinary替代；awhile，翻譯為“一會兒”，可用文中ashorttime替代；haveproblem，翻譯為“有問題”，可用文中havetrouble替代。

(5)本句是so引導(dǎo)的結(jié)果狀語從句，翻譯為“所以”；we，翻譯為“我們”；should，翻譯為“應(yīng)該”；doone'sbesttodosth，翻譯為“盡某人最大努力去做某事”；give，翻譯為“給予”；ourears，翻譯為“我們的耳朵”；specialcare，翻譯為“特殊呵護”。

2.【答案】

(1)B

(2)C

(3)A

(4)D

3.【答案】

(1)2or3minuteseachtime

(2)eattoomuchsugar

(3)every3months.

(4)Youcantakecareofyourteethbytakingthesetips.

(5)一年看兩次牙醫(yī)也很重要。

【解析】

(1)細節(jié)理解題。根據(jù)Takeyourtimewhilebrushing.下的第一句：Spendatleast2or3minuteseachtimeyoubrush.每次刷牙至少花2-3分鐘。

(2)細節(jié)理解題。根據(jù)Brushingisn'ttheonlywaytokeepyourteethhealthy.下的第二句：Remember,toomuchsugarisbadforyourteeth.記住，吃太多的糖對你的牙齒不好。

(3)細節(jié)理解題。根據(jù)Takeyourtimewhilebrushing.下的第一句：Askyourparentstohelpyougetanewtoothbrushevery3months.每三個月讓你的父母幫你買一把新牙刷?？芍咳齻€月要換一次牙刷。

(4)主旨理解題。根據(jù)第一段最后一句：Youcantakecareofyourteethbytakingthesetips.你可以通過這些方法來保護你的牙齒?？芍疚闹饕榻B了一些保護牙齒的方法。

(5)句意理解題?！癐t'salsoimportanttodosth.”做某事是重要的?！皏isitthedentist”看牙醫(yī)?！皌wiceayear.”一年兩次。

4.【答案】

(1)A

(2)C

(3)D

(4)B

【解析】

(1)詞義猜測題。根據(jù)Yourheadhousesthemostvaluablepartofyourbody—yourbrain.可推測，腦袋里有身體最有價值的東西——大腦。又知store的意思是儲存；lock的意思是上鎖；creating意為創(chuàng)造；build意思是建造，所以此處應(yīng)選stores。

(2)細節(jié)理解題。根據(jù)Ifyouhaveyourskincut,itwillhaveaquickcureandstopvirusesfromgettingintoyourbody.Yourskinalsohelpsyoufeeltheheatandcoldnessoftheenvironmentaroundyou.Hairgrowsfrominsidetheskin.Whenyoufeelhot,extraheatcomesoutthroughyourskin.Asaresult,yourbodytemperaturedrops.可知，皮膚可以阻擋細菌進入身體，可以幫你感知冷暖；可以幫你降溫。所以此處應(yīng)選Wecan'tfeelthechangesintemperature。

(3)推測判斷題。根據(jù)Itisslightlybiggerthanyourfist(拳頭)andgrowsbiggerasyoudo可知，心臟隨著身體的成長而成長，所以選項A是錯誤的。根據(jù)Yourbodyneedstotakeinoxygenfromtheair可知，身體需要的是氧氣，所以選項B是錯誤的。根據(jù)Theyworkwithyourbonestohelpyoumove可知，你的肌肉與骨頭幫著你活動，所以選項C是錯誤的。根據(jù)Thisisthewayyourbodycleansupthedustinyournose.可知，打噴嚏是幫著你清理鼻子中的異物，所以選項D是正確的。

(4)主旨大意題。通讀全文可知，本文通過大腦、皮膚、肌肉、噴嚏、呼吸等方面闡述了我們的身體是如何工作的，所以標題應(yīng)為HowYourBodyWorks。

5.【答案】

(1)D

(2)D

(3)D

(4)A

(5)C

【解析】

(1)段落大意題，根據(jù)Infact,thebrainismuchmorepowerfulthananysupercomputer可知講述的是電腦遠遠比不上人腦，故選D。

(2)細節(jié)理解題，前面提到itusesaround20%ofallyourenergyinyourbody用掉所有能量的20%，由此可知是能量消耗較大，故選D。

(3)細節(jié)理解題，根據(jù)Yourbrainstopsgrowingwhenyou're18,