鍋筒水位太低不利于水循環(huán)的安全，因此水位越高越好。
1、正確錯(cuò)誤
暫無解析
Asisknowntousall,theage_____childrencangotoschoolisseven.
Thefanswereveryexcited______DavidBeckhamcametotheshow.
You____thatlettertoJames.However，youdidn't.
PARTVREADINGCOMPREHENSION
Inthissectiontherearefourpassagesfollowedbyquestionsorunfinishedstatements,eachwithfoursuggestedanswersmarkedA,B,CandD.Choosetheonethatyouthinkisthebestanswer.
TEXTA
Racket,dinclamor,noise,whateveryouwanttocallit,unwantedsoundisAmerica'smostwidespread
nuisance.Butnoiseismorethanjustanuisance.Itconstitutesarealandpresentdangertopeople'shealth.Day
andnight,athome,atwork,andatplay,noisecanproduceseriousphysicalandpsychologicalstress.Nooneis
immunetothisstress.Thoughweseemtoadjusttonoisebyignoringit,theear,infact,neverclosesandthe
bodystillresponds—sometimeswithextremetension,astoastrangesoundinthenight.
Theannoyancewefeelwhenfacedwithnoiseisthemostcommonoutwardsymptomofthestressbuilding
upinsideus.Indeed,becauseirritabilityissoapparent,legislatorshavemadepublicannoyancethebasisof
manynoiseabatementprograms.Themoresubtleandmoreserioushealthhazardsassociatedwithstress
causedbynoisetraditionallyhavebeengivenmuchlessattention.Nevertheless,whenweareannoyedormade
irritablebynoise,weshouldconsiderthesesymptomsfairwarningthatotherthingmaybehappeningtous,
someofwhichmaybedamagingtoourhealth.
Ofmanyhealthhazardstonoise,hearinglossisthemostclearlyobservableandmeasurablebyhealth
professionals.Theotherhazardsarehardertopindown.Formanyofus,theremaybeariskthatexposuretothe
stressofnoiseincreasessusceptibilitytodiseaseandinfection.Themoresusceptibleamongusmayexperience
noiseasacomplicatingfactorinheartproblemsandotherdiseases.Noisethatcausesannoyanceandirritability
inhealthpersonsmayhaveseriousconsequencesforthesealreadyillinmindorbody.
Noiseaffectsusthroughoutourlives.Forexample,thereareindicationsofeffectsontheunbornchildwhen
mothersareexposedtoindustrialandenvironmentalnoise.Duringinfancyandchildhood,youngstersexposed
tohighnoiselevelsmayhavetroublefallingasleepandobtainingnecessaryamountsofrest.
Why,then,istherenotgreateralarmaboutthesedangers?Perhapsitisbecausethelinkbetweennoiseand
manydisabilitiesordiseaseshasnotyetbeenconclusivelydemonstrated.Perhapsitisbecausewetendto
dismissannoyanceasapricetopayforlivinginthemodernworld.Itmayalsobebecausewestillthinkof
hearinglossasonlyanoccupationalhazard.
1.InParagraph1,thephrase"immuneto"areusedtomean___.
A.unaffectedby
B.hurtby
C.unlikelytobeseenby
D.unknownby
2.Theauthor'sattitudetowardnoisewouldbestbedescribedas___.
A.unrealistic
B.traditional
C.concerned
D.hysterical
3.Whichofthefollowingbeststatesthemainideaofthepassage?
A.Noiseisamajorproblem;mostpeoplerecognizeitsimportance.
B.Althoughnoisecanbeannoying,itisnotamajorproblem.
C.Noiseisamajorproblemandhasnotyetbeenrecognizedassuch.
D.Noiseisamajorproblemaboutwhichnothingcanbedone.
4.Theauthorcondemnsnoiseessentiallybecauseit___.
A.isagainstthelaw
B.canmakesomepeopleirritable
C.isanuisance
D.inagangertopeople'shealth
5.Theauthorwouldprobablyconsiderresearchabouttheeffectsnoisehasonpeopletobe___.
A.unimportant
B.impossible.
C.awasteofmoney
D.essential
MrsZhangoftentellsusthatspringisthetime____peoplegosightseeing.
