国标规定,硅酸盐水泥的初凝时间不得早于()分钟。

A、20
B、30
C、45
D、60
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正确答案:

C

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IliveinthelandofDisney,Hollywoodandyear-roundsun.Youmaythinkpeopleinsuchaglamorous,fun-filledplacearehappierthanothers.Ifso,youhavesomemistakenideasaboutthenatureofhappiness.

Manyintelligentpeoplestillequatehappinesswithfun.Thetruthisthatfunandhappinesshavelittleornothingincommon.Funiswhatweexperienceduringanact.Happinessiswhatweexperienceafteranact.Itisadeeper,moreabidingemotion.

Goingtoanamusementparkorballgame,watchingamovieortelevision,arefunactivitiesthathelpusrelax,temporarilyforgetourproblemsandmaybeevenlaugh.Buttheydonotbringhappiness,becausetheirpositiveeffectsendwhenthefunends.

IhaveoftenthoughtthatifHollywoodstarshavearoletoplay,itistoteachusthathappinesshasnothingtodowithfun.Theserich,beautifulindividualshaveconstantaccesstoglamorousparties,fancycars,expensivehomes,everythingthatspells“happiness”.Butinmemoiraftermemoir,celebritiesrevealtheunhappinesshiddenbeneathalltheirfun:depression,alcoholism,drugaddiction,brokenmarriages,troubledchildrenandprofoundloneliness.

Askabachelorwhyheresistsmarriageeventhoughhefindsdatingtobelessandlesssatisfying.Ifhe’shonest,hewilltellyouthatheisafraidofmakingacommitment.Forcommitmentisinfactquitepainful.Thesinglelifeisfilledwithfun,adventureandexcitement.Marriagehassuchmoments,buttheyarenotitsmostdistinguishingfeatures.

Similarly,couplesthatchoosenottohavechildrenaredecidinginfavorofpainlessfunoverpainfulhappiness.Theycandineoutevertheywantandsleepaslateastheywant.Coupleswithinfantchildrenareluckytogetawholenight’ssleeporathree-dayvacation.Idon’tknowanyparentwhowouldchoosethewordfuntodescriberaisingchildren.

Understandingandacceptingthattruehappinesshasnothingtodowithfunisoneofthemostliberatingrealizationswecanevercometo.Itliberatestime:nowwecandevotemorehourstoactivitiesthatcangenuinelyincreaseourhappiness.Itliberatesmoney:buyingthatnewcarorthosefancyclothesthatwilldonothingtoincreaseourhappinessnowseemspointless.Anditliberatesusfromenvy:wenowunderstandthatallthoserichandglamorouspeopleweweresosurearehappybecausetheyarealwayshavingsomuchfunactuallymaynotbehappyatall.

1.Whichofthefollowingistrue?

A.Funcreateslong-lastingsatisfaction.

B.Funprovidesenjoymentwhilepainleadstohappiness.

C.Happinessisenduringwhereasfunisshort-lived.

D.Funthatislong-standingmayleadtohappiness.

2.Totheauthor,Hollywoodstarsallhaveanimportantroletoplaythatisto__.

A.ritememoiraftermemoirabouttheirhappiness.

B.tellthepublicthathappinesshasnothingtodowithfun.

C.teachpeoplehowtoenjoytheirlives.

D.bringhappinesstothepublicinsteadofgoingtoglamorousparties.

3.Intheauthor’sopinion,marriage___.

A.affordsgreaterfun.

B.leadstoraisingchildren.

C.indicatescommitment.

D.endsinpain.

4.Coupleshavinginfantchildren___.

A.areluckysincetheycanhaveawholenight’ssleep.

B.findfunintuckingthemintobedatnight.

C.findmoretimetoplayandjokewiththem.

D.derivehappinessfromtheirendeavor.

5.Ifonegetthemeaningofthetruesenseofhappiness,hewill__.

A.stopplayinggamesandjokingwithothers.

B.makethebestuseofhistimeincreasinghappiness.

C.giveafreehandtomoney.

D.keephimselfwithhisfamily.

It’shightimewe_____cuttingdowntherainforests.

A、stopped
B、hadtostop
C、shallstop
D、stop

PartIVTranslation

Yetcowboyslikedtheirwayoflife.Theylivedinawildandopencountry.Theylivedalifeofadventureandfreedom.(PassageThree)

Scatteredthroughtheseasoftheworldarebillionsoftonsofsmallplantsandanimalscalledplankton.Mostoftheseplantsandanimalsaretoosmallforthehumaneyetosee.Theydriftaboutlazilywiththecurrents,providingabasicfoodformanylargeranimals.Planktonhasbeendescribedastheequivalentofthegrassesthatgrowonthedrylandcontinents,andthecomparisonisanappropriateone.Inpotentialfoodvaluehowever,planktonfaroutweighsthatofthelandgrasses.Onescientisthasestimatedthatwhilegrassesoftheworldproduceabout49billiontonsofvaluablecarbohydrateseachyear.Thesea’splanktongeneratesmorethantwiceasmuch.

Despiteitsenormousfoodpotential,littleeffortwasmadeuntilrecentlytofarmplanktonaswefarmgrassesonland.Nowmarinescientistshaveatlastbeguntostudythispossibility,especiallyasthesea’sresourcesloomevenmoreimportantasameansoffeedinganexpandingworldpopulation.

Nooneyethasseriouslysuggestedthat“planktonburgers”maysoonbecomepopulararoundtheworld.Asapossiblefarmedsupplementaryfoodsource,however,planktonisgainingconsiderableinterestamongmarinescientists.

Onetypeofplanktonthatseemstohavegreatharvestpossibilitiesisatinyshrimplikecreaturecalledkrill.Growingtotwoorthreeincheslong,krillprovidethemajorfoodforthegiantbluewhale,thelargestanimalevertoinhabittheEarth.Realizingthatthiswhalemaygrow100feetandweigh150tonsatmaturity,itisnotsurprisingthateachonedevoursmorethanonetonofkrilldaily.

Krillswimaboutjustbelowthesurfaceinhugeschoolssometimesmileswide,mainlyinthecoldAntarctic.Becauseoftheirpinkcolor,theyoftenappearasasolidreddishmasswhenviewedfromashiporfromtheair.Krillareveryhighinfoodvalue.Apoundofthesecrustaceanscontainsabout460calories—aboutthesameasshrimporlobster,towhichtheyarerelated.

Ifthekrillcanfeedsuchhugecreaturesaswhales,manyscientistsreason,theymustcertainlybecontendersasnewfoodsourceforhumans.

1.Whichofthefollowingbestportraystheorganizationofthepassage?

A.Theauthorpresentstheadvantagesanddisadvantagesofplanktonasafoodsource.

B.Theauthorquotespublicopiniontosupporttheargumentforfarmingplankton.

C.Theauthorclassifiesthedifferentfoodsourcesaccordingtoamountofcarbohydrate.

D.Theauthormakesageneralstatementaboutplanktonasafoodsourceandthenmovestoaspecificexample.

2.Accordingtothepassage,whyisplanktonregardedtobemorevaluablethanlandgrasses?

A.Itiseasiertocultivate.

B.Itproducesmorecarbohydrates.

C.Itdoesnotrequiresoil.

D.Itismorepalatable.

3.Whydoestheauthormention“planktonburgers”?

A.Todescribetheappearanceofonetypeofplankton.

B.Toillustratehowmuchplanktonawhaleconsumes.

C.Tosuggestplanktonasapossiblefoodsources.

D.Tocomparethefoodvaluesofbeefandplankton.

4.Whatismentionedasoneconspicuousfeatureofkrill?

A.Theyarethesmallestmarineanimals.

B.Theyarepinkincolor.

C.Theyaresimilarinsizetolobsters.

D.Theyhavegrasslikebodies.

5.Theauthormentionsallofthefollowingasreasonswhyplanktoncouldbeconsideredahumanfoodsourceexceptthatitis___.

A.highinfoodvalue.

B.inabundantsupplyintheoceans.

C.anappropriatefoodforotheranimals.

D.freeofchemicalsandpollutants.

PartIVTranslation

Notmanyofthechildrenoffertheirfatherssomepresents.ButtheAmericanfathersstillthinktheyaremuchbetterfatedthanthefathersofmanyothercountries,whohavenotevenadayfortheirsakeinnameonly.(PassageThree)

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