中考阅读理解实战演练之科学小品篇　

中考阅读理解实战演练之科学小品篇

Sectionlll科学小品篇

Passage23

Researchers（研究者）haveannounced（宣

布）theresultoftwostudiesonthehealtheffectsofthedrug

aspirin（阿斯匹

林）.Onestudyshowsaspirincansharplyreducethechanceth

atahealthy,oldermanwilIsufferfromaheartattack（心脏

病）.

Thestudyofferedtwonewresultsfromear

lierfindings.Itsaidtakingoneaspirinpillevery

otherdayhelpedonlyhealthymenovertheageoffift

y.Italsosaidaspiringavethegreatestprotection

againstheartattackstomenwithlowbloodcholeste

rol（胆固醇）levels.

EarlierintheUnitedStatesbeganamajorasp

irinstudyintheearlyl98Os.Itincluded22,OOOhea

Ithymendoctors.Allwerebetweentheagesoffortya

ndeighty-four.Morethan11,OOOofthedoctorstook

aharmlesspillthatcontainednodrug.Themendidno

tknowwhichkindofpilltheyweretaking.

Thedoctorswhotookaspirinsuffered44%fewer

heartattacksthanthosetakingtheharmlesspi11.1

39menwhotookaspirinsufferedfromheartattacks.

Tenofthemdied.239menwhodidnottakeaspirinsuff

eredfromheartattacks.Twenty-sixofthemdied.

Theresearcherssaidthedoctors'studyprovidescl

earproofthattakingaspirincanpreventafirsthea

rtattackinhealthy,oldermen.Theysaid,however,

theresultdoesnotmeaneverymanovertheageoffift

yshouldtakeaspirin.Theysaidaspirincouldn'the

Ipmenwhodonoteathealthyfoods,whosmokecigaret

tesandwhoarefat.Theresearcherssaidmenwhothin

ktheywouldbehelpedbytakingaspirinshouldtalkw

iththeirdoctorsfirst.

1.ThepassagetelIsusthatthenewuseofaspirinis

A.totreatheartdiseaseB.toreducepain

whileonesuffersfromaheartattack

C.tohelpoldpeopletobemorehealthyD.toreduceth

echanceofaheartattackinoldmen

2.Aspirincanhelpthosewho.

AworkasdoctorsB.areunder40yearsold

C.arefatandsmokecigarettesD.areoIderandheal

thy

3.Atlasttheresearchersadvisedust

totakeaspirin.

A.witheareB.asmuchaswelikeC.everydayD.on

lyconsideringtheage

4.Fromtheexperimentwecanconcludethatabout

_ofpeoplewhosufferedfromheartattackswithouta

spirindied.

A.7%B.11%C.19%D.44%

Passage24

Itseemstobestrangetoyouthereisablindspot（W

点）ontheeyes.Hereisaninterestingexperiment（实

验）thatcanmakesomethingdisappear,whenoneeyeisopen.

Makeacardaboutthesizeofapostcardandwritetwo

EnglishlettersLandRonit,LontheleftandRonther

ight.First,holdthecardabout80cmawayandyousee

boththeletters.Thencloseyourrighteyeandlooka

ttheletterRonlywithyourlefteye.Andnow,asyoum

ovethecardslowlytowardsyou,you'11findthelett

erLdisappearing.Butifyoumovethecardnearertoy

ourface,theletterwillbeseenagain.Nowdothesam

eexperimentwithyourlefteyeclosed,you'Ilfindt

heletterRdisappearing.

Whydoestheletterdisappear?Itisbecausethere

isablindspotontheeye.Whentheimage（影像）ofthele

tterfallsontheblindspot,itwon'tbeseen.Thatis

whyeitherofthelettersdisappears.

1.Thewriterofthepassagethinksthatthere

isablindspotontheeye.

A.fewpeopleknowB.nooneknowsC.mostpeopleknow

D.allthepeopleknow

2.Theword“disappear“inthepassagemea

nsinChinese.

A.驱散B.消散C消失D.遗失

3.YoufailtoseetheletterLintheexperiment

because.

A.youreyesarepoorB.itsimagefallsontheblindspo

t

D.yourlefteyeisnotopenC.youmoveitclosetoy

oureye

4.Inwhichorder（顺序）shouldyoudotheexperiment?

①Holdthecard②Movethecardnearer③Clos

eyourrighteye

©WritetwoEnglishletters@LookattheletterR⑥

Makeacard

A.④⑥①②③⑤B.①③⑥④⑤②C.⑥①④③②⑤D.@

④①③⑤②

5.Thepassagemainly（主要）tellsus

A.howtofindtheblindspotB.aninteresti

ngexperiment

C.wheretheblindspotisD.t

hereisblindspotontheeye

Passage25

Differentweathermakespeoplefeeldiffe

rent.Itinf1uences（影响）health,intelligence（智力）

andfeelings.

InAugust,itisveryhotandwetinthesouthernpa

rtoftheUnitedStates.Peopletherehavehearttrou

bleandotherkindsofhealthproblemsduringthismo

nth.IntheNortheastandtheMiddleWest,itisveryh

otatsometimesandeverycoldatothertimes.People

inthesestateshavemorehearttroubleafterthewea

therchangesinFebruaryorMarch.

Theweathercanalsoinfluenceintellige

nee.Forexampie,inal983reportbyscientists,IQ（智

H）ofagroupstudentswereveryhighwhenaverystro

ngwindcame,butafterthestrongwind,theirlQwasl

0%below.Thewindcanhelppeoplehavemoreintellig

ence.Veryhotweather,ontheotherhand（另一方面），can

makeitlower.StudentsinmanyschoolsoftheUnited

Statesoftengetworseonexamsinthehotmonthsofth

eyear（JulyandAugust）.

Weatheralsohasastronginfluenceonpeople'sfee

lings.Wintermaybeabadtimeforthinpeople.Theyu

suallyfeelcoldduringthesemonths.Theymightfee

1unhappyduringcoldweather.Butfatpeoplemayhav

eahardtimeinhotsummer.Ataboutl8C,peoplebecom

estronger.

Lowairpressure（气压）maymakepeopleforgetful.Pe

opleleavemorebagsonbusesandinshopsonlow-pres

suredays.Therearea”goodweather”forwordandhea

1th.Peoplefeelbestatatemperatureofaboutl8cen

tigrade（摄氏度）.

Areyoufeelingsad,tired,forgetful,orunhap

pytoday?Itmaybetheweather'sproblem.

1.canhaveabadeffect（作用）onhealth.

A.HotandwetweatherB.GoodweatherC.WarmweatherD.

Highintelligence

2.Peoplemayhavemoreintelligencewhencomes.

A.arainB.veryhotweatherC.astrongwindD.lowair

pressure

3.Lowairpressuremaymakepeople.

A.forgetfulB.sadC.angryD.tired

4.In“goodweather”of18centigrade,.

A.peopleareveryforgetfulB.peopl

ecan,tdotheirworkwel1

C.thinpeoplefeelcoldD.peopleareinbetterhealth

5.Thewriterwantstotellusthat.

A.hotandcoldweatherinfluencesallpeopleinthes

ameway

B.weatherinfluencespeople'slivesC.IQ

neverchangesduringweatherchanges

D.Thereisagoodkindofweatherforpeople,sworka

ndhealth

Passage26

Nowsatellitesarehelpingtoforecast（预

报）theweather.Theyareinspace,andtheycanreachan

ypartoftheworld.Thesatellitestakepicturesoft

heatmosphere（大气），becausethisiswheretheweathe

rforms（形成）.Theysendthesepicturestotheweather

stations.Someteorologists（气象学家）ca.nseetheweat

herofanypartoftheworld.Fromthepictures,these

ientistscanoftensayhowtheweatherwillchange.

Today,nearlyfivehundredweatherstationsinsix

tycountriesreceivesatellitepictures.Whenthey

receivenewpictures,themeteorologistscomparet

hemwithearlierones.Perhapstheymayfindthatthe

cloudshavechangedduringthelastfewhours.Thism

aymeanthattheweatheronthegroundma

ysoonchange,too.Intheirnextweatherforecast,t

hemeteorologistscansaythis.

Sotheweathersatellitesareagreathelpto

themeteorologists.Beforesatelliteswereinvent

ed,thescientistscouldforecasttheweatherforab

out24or48hours.Nowtheycanmakegoodforecastsfo

rthreeorfivedays.Soon,perhaps,theymaybeablet

oforecasttheweatherforaweekormoreahead（提前）.

1.Satellitestravel.

A.inspaceB.abovespaceC.abovethegroundD.inthea

tmosphere

2.Whydoweusetheweathersatellites!otakepictur

esoftheatmosphere?Because.

A.cloudsformthereB.theweatherformsthere

C.theweathersatellitescandoiteasilyD.thepictu

rescanforecasttheweather

3.Meteorologistsforecasttheweather.

A.withoutstudyingsatellitepicturesB.befo

retheyreceivesatellitepictures

C.whentheyhavereceivedsatellitepictures

D.aftertheyhavecomparedthenewsatellit

epictureswiththeearlierones

4.Maybewe5llsoonbeabletoforecastthewe

atherfor.

A.onedayB.twodaysC.fivedaysD.sevend

aysorevenlonger

5.Themainideaofthispassageisthatsatell

itesarenowusedin.

A.takingpicturesoftheearthB.receiving

picturesoftheatmosphere

C.weatherforecastingD.doingotherworkinman

yways

Passage27

Paragraphl

Scientistshavelearnedalotaboutthekindsof

peopleneed.Theysaythatthereareseveralkindsof

foodthatpeopleshouldeateveryday,theyare:(1)g

reenandyellowvegetablesofallkinds;⑵citrus(柑

桔)fruitsandtomatoes;(3)potatoesandotherfrui

tsandvegetables;94)meatofallkinds,fishandegg

s;(5)milkandfoodsmadefrommilk;(6)breadorcereal(谷

类),riceisalsointhiskindoffood;(7)butter,

orsomethinglikebutter.

Paragraph2

Peopleindifferentcountriesanddifferentplace

softheworldeatdifferentkindsofthings.Foodsar

ecookedandeateninmanydifferentkindsofways.Pe

opleindifferentcountrieseatatdifferenttimeso

ftheday.Insomeplacespeopleeatonce

ortwiceaday;inothercountriespeopleeatthreeor

fourtimesaday.Scientistssaythatnoneofthediff

erencesisreallyimportant.Itdoesn'tmatterwhet

herfoodsareeatenraworcooked,canned(罐装的)orfro

zen(冷冻的).Itdoesn'tmatterifapersoneatsdinnera

t4o'clockintheafternoonorateleveno'clockatni

ght.Theimportantthingiswhatyoueateveryday.Pa

ragraph3

Therearetwoproblems,then,infeedingthelargenum

berofpeopleontheearth.Thefirstistofindsomewa

ytofeedtheworld'spopulationsothatnooneishung

ry.Thesecondistomakesurethatpeopleeverywhere

havetherightkindsoffoodtomakethemgrowtobestr

ongandhealthy.

1.Accordingto（依据）thescientists,whichoft

hefollowinggroupsoffoodisthehealthiestforyou

rlunch?

A.Chicken,a

pples,cerealandcabbages.B.Potatoes,carrots,ric

eandbread.

C.Oranges,bananas,fishandtomatoes.D.Beef,po

rk,fishandmilk,

2.Itisimportantforpeopletoeat.

A.threetimesadayB.dinnerattwelveo'clock

C.cookedfoodalIthetimeD.somethingfro

meachofthesevenkindsoffoodeveryday

3.Peopleindifferentcountriesanddifferentp

lacesoftheworld.

A.havetherightkindsoffoodtoeatB.cooktheirfoo

dinthesameway

C.havetheirmealsatthesametimeD.eatfoodin

differentways

4.Whichofthefollowingisnottrue?

A.Peopleinsomeplacesdon'thave

enoughtoeat.B.Therearetoomanypeopleintheworld.

C.Oneoftheproblemsisthatnooneishungry.

D.Thescientistsaretryingtomakepeoplegrowtobe

strongandhealthy.

5.IfthereisParagraph（段落）4,whatdoyout

hinkisgoingtobetalkedabout?

A.Whenpeopleeattheirlunch.B.Whattodow

iththetwoproblems.

C.Howtocookfoodindifferentways.D.Wh

ypeopleeatdifferentkindsoffood.

Passage28

WhatdoNapoleon,ClintonandWangNanhav

eincommon?Theyareallleft-handed.

Today,aboutl5%ofthenumberofpeopleisleft-han

ded.Butwhyarepeopleleft-handed?Theansweristh

ewaythebrain（大脑）works.Thebrainhastwohalves----

therighthalfcontrolstheleftsideofthebody,a

ndtheleftcontrolstherightsideofthebody.Soright-

handedpeoplehaveastrongleft-brainandleft-

handedpeoplehaveastrongrightbrain.

ThetwohaIvesofhebrainareaboutthesamesize.

Buteachsidecontrolsdifferentthings.Theleftsi

decontrols!anguage,mathandlogical（逻辑的）.Wheny

ouremembernewwords,orwhenyouputth

ingsinorder,youuseyourleftside.

Therightsideofthebraincontrolsyourloveofart,

colorsandmusic.Itisalsogoodatrecognizing（识另ij）

faces.

Thisdoesnotmeanthatallartistsareleft

handedandallaccountants（会计）areright-handed.

Someright-han

dershaveastrongrightbrain,andsomeleft-ha

ndershaveastrongleft-brain.

1.Thephrase“incommonvinthefirstsenten

cemeans.

A.thesameB.differentC.strangeD.interesting

2.Peoplewhoareright-handedorleft-handed

aremostlydecidedby.

A.theirparentsB.theirmindsC.thewaythebr

ainworksD.thewaytheheadworks

3.Eachsideofthebrain.

A.likesmusicandmathB.controlsdifferentth

ingsC.controlsthesamethingD.hastwohalves

4.Whenyouaresinging,youareusingyour.

A.1ogicthinkingB.heartC.1eftbrainD.rightbrain

Passage29

Beforeyouuseyournewmicrowaveoven,re

adtheinstructionscarefully.Eachovenhasitsown

controlpane1（控制板），butmostmicrowaveovensopera

teinasimilarway.Lookatthecontrolpanelshownhe

re.Itshowsthetimeatthetopofthepanel.Underthe

timearethedifferentfunctions（功能）.Youcanpress

（按）Defrost,Cook,Clock,orPower.Youcanalsowarm

foodbypressingReheatTimes.

Underthefunctionsarethenumbers.Thesenu

mbersareshownasontelephone,fromzerothroughni

ne.Youcanpressthenumberstosetthecookingtimei

nsecondsorminutes.UnderthenumbersareStartandClear

Amicrowaveovenwillautomatically（自动的）

cookonHIGH（powerlevel10）unlessyouenteralower

powerlevel.Suppose（假设）youwanttocookaservingo

fbroccolifortwominutesandforty-fivesecondson

MEDIUMpower(level5).First,pressthenumbers2,4

and5(twominutes,forty-fiveseconds).Thenpress

Power.Next,pressthenumber5.Atlast,pressStart

tobegincooking.Ifyoumakeamistake,pressClear.

Thiswillclearthedisplayandallowyoutostartove

ragain.

阅读短文，然后根据其内容回答下列问题。

1.Whatisthemainideaofthepassage?

2.Whatfunctionsdoesamicrowaveovenhave?

3.Howouldyoucookgreenbeansfortwominutesand

thirtysecondsatpowerlevel7?

4.Whatisthelastfunctionyoupresseachtimeyouset

thecontrols?

5.Whatdoes“Clear“allowyoutodowhenyoupressit?

Passage30

Nooneknowswhywesleep,butit'scertainthatwene

edto.Peoplewhoarepreventedfromsleepingbegint

osufferobviouseffectsafterafewdays一theythink

lessclearly,andtheyfallasleepduringtheworkin

ghours.

Therearenorulesaboutsleep.Generally

speaking,grown-upssleepabout7andahalfhoursea

chnightandprobablymorethan60percentgetbetwee

nsevenandeighthours.Butperhapseightpercentar

equitehappywith5hoursorless,andfourpercentor

sofindthattheywanttenhoursormore.Ifyoufeelal

Iright,you'reprobablygettingenoughsleep.Thei

mportantthingisnottoworryhowmuchotherpeopleget-

theirneedsmaybedifferent.Exercisedoesn'ts

eemtoincreasetheneedforsleep一officeworkers,f

orexample,sleepforaboutaslongaspeopledoingph

ysicallyactivework.

Childrensleepmorethangrown-ups一per

hapsl4tol8hourssoonafterbirth,goingdowntogrown-

uplevelsbyearlyteenage（青少年）.SIeeppatterns

alsotend（倾向）tobedifferentintheoldpeople,whom

aysleeplessatnightthantheydidwhenyounger,fin

dsleepgettingmorebroken,andoftenmakeitarulet

osleepduringthedaytime.

1.Somepeoplecan,tthinkclearlybecause.

A.theyhavebadmemoryB.theyfeeIsleepyduri

ngtheworkinghours

C.theydon'thaveenoughsleepD.theyarec

ertaintobekeptfromgoingtobed

2.Whetheryouhavegotenoughsleepisjudged（判

断）by.

A.howmanyhoursyouhavesleptB.howmanyho

ursyouneedtosleep

C.ifyoudoexerciseandphysicalworkD.if

youfeelfreshenergetic

3.Accordingtothepassage,aboyof14yearsoldsle

eps.

A.aslonghoursasagrown-upB.muchIongerhourstha

nagrown-

up

C.forl4hourseachnightD.forlessthan8hourseac

hnight

4.WhichofthefollowingisTrue?

A.Allgrown-upsmuchhaveatleasteight-hoursleep.

B.Mostofgrown-upssleepforsevenoreighthours.

C.Quiteafewpeopleneedonly5hoursorle

ssforthemtosleep.

D.Nogrown-upssleepmorethantenhours.

Passage31

Somepeoplewanttobesentintospaceaftertheirdeat

h,otherswanttoliedeepunderthesea.Butmostpeop

lewanttogointothefreezer（冷藏库）.Thesearebeliev

ersincryogenics（低温冷冻学）.

Nowsomediseasescan，tbecured,buttheymaybec

uredsometimeinthefuture.Sosomepeoplehopethat

theirbodiescanbefrozenaftertheydie.Whenacure

isfound,warmuphisorherbody,bringitbacktolife

andtakethecure.Oncethebodyisfrozen,itiskepti

nliquidnitrogen（液态氮）atatemperatureof328degre

esbelowzero.

Nowaroundathousandpeoplearegoingtotakecry

ogenictreatment（处理），thoughmostscientistssayi

twon，twork.Ifwefreezehugecreatures（生物）likehu

mans,everyoneoftheirceIls（细胞）willbebroken.Ca

ntheybebroughtbacktolifeinthefuture?

阅读短文，然后根据其内容回答下列问题。

1.Wheredomostpeoplehopethattheirbodiesarek

eptaftertheirdeath?

2.Whydotheywanttheworldtokeeptheirbodieswell?

3.Howdoscientistsusuallykeepadeadman，sbody?

4.Howmanypeoplearegoingtotakecryogeni

ctreatmentaftertheydie?

5.Canamanwhodiedofcancercomebacktolifeint

hefutureifhisbodyisfrozen?Why?Sectionlll科普小

品篇答案与解析

Passage23【答案与解析】本文介绍了科学家对阿斯匹

林的研究成果。实验表明，阿斯匹林可以预防或削弱老年

人患心脏病的危险，但实际的效果和服用者的饮食有一定

的关系。研究人员说，服用可药品要遵医嘱。

1.Do短文首段的末句“…sharplyreducethechance

thatahealthy,oldermanwillsufferfromaheartattack.”

即是本题答案的出处.

2.Do注意“…reducethechancethatahealthy,ol

dermanwillsufferfromaheartattack.”本句中的health

y,older这两个词，即可得出答案。

3.Ao文章最后一段是说，尽管的这种新用途对病人很

有帮助，但患者在使用时必须格外小心，一定要严遵医嘱。

4.Bo根据“239menwhodi

dnottakeaspirinsufferedfromheartattacks.

Twenty-sixofthemdied.一句中的239和26这两个数字

即可算出。

Passage24【答案与解析】这篇科普说明文通过一个简

易的小实验，证实了人的眼睛里有一个盲点。当外界物体

的影像落在盲点上时，人就看不见该物体了。

l.Ao仔细品读文章首句的意思，可知答案只能是A。

2.Co”…Butifyoumovethecardneare

rtoyourface,theletterwillbeseenagain”,由这几个句

子的意思可知字母L在眼睛中消失了。注意消失和消散的

区别。

3.Bo答案在“Whentheimageoftheletterfallso

ntheblindspot,itwon,tbeseen.中。

4.Do根据第二段的意思可知，此实验的顺序是：先制

作一张卡片一在上面写上两个字母一拿起卡片一闭上右眼

一看到字母R一让卡片离眼睛再近些。故答案是D。

5.Do通篇考虑短文，可知D为最佳答案。这由文首一

句及“…Itisbecausethereisablindspotontheeye.”也

可得出。

Passage25【答案与解析】这篇短文告诉我们的是：天

气的冷热干湿对人体健康有很大的影响。比如心脏病高发

区所在地往往是严寒或酷热。大风或炎热天气里，人的智

商会降低。瘦人怕冷天，而炎炎夏日对胖人又不利。此

外，低气压还能导致健忘。

l.Ao根据文章第二自然段的描述可知，冷湿天气对人

的健康是有害的。

2.Co第三段的首句“Theweathercanalsoin

fluenceintelligence”说的就是这个意思。

3.Ao本题属表层理解题。答案就在“Lowair

pressuremaymakepeopleforgetfuL”中。

4.Do由“Peoplefeelbestatatemperatureofabout

18centigrade.v一句可知。

5.Bo根据文章最后的“Areyoufeeli

ngsad,tired,forgetful,orunhappytoday?Itmaybethe

weather'sproblem.这一句，我们可以推测出作者

的写作意图。

Passage26【答案与解析】这篇阅读材料向我们介绍了

气象卫星在预报天气中所发挥的重要作用。如今，许多国

家的气象站都是在接收到卫星云图后，由气象学家进行研

究分析，然后预报天气的。在卫星的帮助下，人们可以预

测未来三五天或更长时间内的天气状况。

l.Ao本题属表层理解题。短文首句即是答案之所在。

2.Do“Fromthepictures,theseientistscan

oftensayhowtheweatherwillchange.是该小题答案的出

处。

3.Do答案就在“themeteorologistscompar

ethemwithearlierones.Perhapstheymayfindthatt

hecloudshavechangedduringthelastfewhours.Thi

smaymeanthattheweatheronthegroundmaysoonchan

ge,too.中。

4.Do文章结尾的“Soon,perhaps,theymaybe

abletoforecasttheweatherforaweekormoreahead.”这句

即是答案之所在。

5.Co短文首句即点明了主旨。

Passage27【答案与解析】这篇短文分为三个落：第一

段列举了科学家研究了人们每天要吃的食物；第二段讲述

了不同国家的人们饮食习惯和饮食结构等各方面有很大差

异。但这些对人来说都没不是很重要的，重要的是每天吃

什么。第三段阐述了两个问题：如何解决世界人口的吃饭

问题，既要吃饱，又要吃得健康。

l.Ao本题属表层理解题。由第一段科学家建议七大类

食品可知答案非A莫属。

2.Do由“Theimportantthingiswhatyoueateveryda

y.”及第一段的内容可知D是正确答案。而根据第二段可

知A、B、C皆为错误的。

3.Do第二段开头的“Peopleindifferentcountries

anddifferentplaceso

ftheworldeatdifferentkindsofthings.Foodsareco

okedandeateninmanydifferentkindsofways."这两句是

解答本题的关键。

4.Co根据第三段所讲的内容，C项显然是错误的。

5.BoA、C和D都是在上文刚刚谈论过的，又根据第三

段“Therearetwoproblems,then,infeedingt

helargenumberofpeopleontheearth.”所提的两个问题，

可以推知下文可能要谈论

如何解决这两个问题。故答案为B。

Passage28【答案与解析】该短文的大意是：百分之十

五的人习惯于使用左手进行工作。这是因为大脑的工作方

式造成的。人的两个大脑半球大小相差无几，但各有分工。

左半球掌管语言、数学和逻辑等；右半球则控制艺术、颜

色和音乐等。惯用左手的人，他们的大脑左半球相比右脑

更发达些。不过这也不是绝对的。

l.Ao本小题有一定的难度，但考虑到短文首句的后的

"TheyarealHeft-handedv一句还是可以推测出来正确答

案的。

2.Co“Theansweristhewaythebrainworks."，本句

是解答该题的关键。

3.Bo第三段是本题答案之所在。

4.D。“唱歌”属于艺术类，根据“Theright

sideofthebraincontrolsyourloveofart,colorsand

music.”这句话，显然可知答案为D。

Passage29【答案与解析】这篇科学说明文浅显的文字,

介绍了微波炉的构造并详细讲述了它的操作使用方法。

1.Ittellsushowtouseanewmicrowaveoven。由文首的

“Beforeyouuseyournewmicrowaveoven,r