高考英語(yǔ)考前閱讀專(zhuān)練七

高考考前閱讀專(zhuān)練七AChildrenundertheageof18willbealloweduptothreehoursperweektoplayvideogames,accordingtoanoticeissuedbyChina'sNationalPressandPublicationAdministration.Onlinegamecompaniesarerequiredtoprovideservicestominors—from8to9p.m.onFridays,Saturdays,Sundaysandlegalholidays—asawaytosafeguardtheirphysicalandmentalhealth.Childrenareplayingmoreandmoreonlinegamesthesedays.Isittimetolimittheironlinegamingtime?Whatroledoparentshave?Readerssharetheiropinions.RizlaredOnlinegamesareaddictive,butifchildrenaretaughthowtomanageinasensibleandresponsiblemannerthenitisnolongerathreat(威脅).Toachievethis,parentsneedtosetexamplesfornotbeinggluedtotheirphones.Teachingisandalwayswillbethebestsolutiontosuchproblems.AndrewGoodpolicy.Bylimitingtimespentononlinegames,kidscanspendtimedoingmoreusefulthingstodeveloptheirpotential.Theycangooutsideandrun,jumpandswiminsteadofsittingonacouchathomeandplayingwithasmartphone.AdamItisoftenseenthatparentsarguewithchildrenovercellphones.Mostparentscanhardlysetandenforcethetimelimitforitsdailyusage.Someforciblytakeawaytheircellphones,butitwillruintrustandrelationship.Evenworse,itwillmaketheirkidshatethem.PinkExcessive(過(guò)度的）gamingispurelyawasteoftimeandenergyforminorsandhasanegativeeffectonbothphysicalandmentalhealth.Thegamingindustryshouldnotputprofit-flakinginterestsasitspriority(優(yōu)先事項(xiàng)).Theyshouldactinasociallyresponsiblewaytoprovideanenvironmentforchildrentoensuretheirwell-beinganddevelopment.LaurenTherewouldbealoophole(漏洞).Childrencouldusetheirparents’orotheradults’IDstoavoidreal-nameregistration,thusmakingitimpossibletoputthispolicyineffect.Parentsabsolutelyneedtostrengthenguidanceandsupervisiontokeeptheirchildrenfromgamingaddiction.1. WhatshouldkidsdoaccordingtoAndrew?A.Playonlinegames. B.Playwithasmartphone.C.Studyallthetime. D.Goinforoutsideactivities.2. WhatdoesPinkadvisethegamingindustrytodo?A.Payattentiontoitsprofit. B.Focusonkids’health.C.Beresponsibleforkids’surroundings. D.Persuadekidsloplaymoregames.3. Whatroledoparentshaveaccordingtothepassage?A.Theykeepholdoftheirphones. B.Theysetexamplesfortheirkids.C.Theylimittheirkids’time. D.Theyblamekidsforaddiction.BForthosewhocanstomachit,workingoutbeforebreakfastmaybemorebeneficialforhealththaneatingfirst,accordingtoastudyofmealtimingandphysicalactivity.Athletesandscientistshavelongknownthatmealtimingaffectsperformance.However,farlesshasbeenknownabouthowmealtimingandexercisemightaffectgeneralhealth.Tofindout,Britishscientistsconductedastudy.Theyfirstfound10overweightandinactivebutotherwisehealthyyoungmen,whoselifestylesare,forbetterandworse,representativeofthoseofmostofus.Theytestedthemen’sfitnessandrestingmetabolic(新陳代謝的)ratesandtooksamples(樣品)oftheirbloodandfattissue.Then,ontwoseparatemorningvisitstothescientists’lab,eachmanwalkedforanhouratanaveragespeedthat,intheory,shouldallowhisbodytorelymainlyonfatforfuel.Beforeoneoftheseworkouts,themenskippedbreakfast,meaningthattheyexercisedonacompletelyemptystomachafteralongovernightfast(禁食).Ontheotheroccasion,theyatearichmorningmealabouttwohoursbeforetheystartedwalking.Justbeforeandanhouraftereachworkout,thescientiststookadditionalsamplesofthemen’sbloodandfattissue.Thentheycomparedthesamples.Therewereconsiderabledifferences.Mostobviously,themendisplayedlowerbloodsugarlevelsatthestartoftheirworkoutswhentheyhadskippedbreakfastthanwhentheyhadeaten.Asaresult,theyburnedmorefatduringwalksonanemptystomachthanwhentheyhadeatenfirst.Ontheotherhand,theyburnedslightlymorecalories(卡路里),onaverage,duringtheworkoutafterbreakfastthanafterfasting.Butitwastheeffectsdeepwithinthefatcellsthatmayhavebeenthemostsignificant,theresearchersfound.Multiplegenesbehaveddifferently,dependingonwhethersomeonehadeatenornotbeforewalking.Manyofthesegenesproduceproteins(蛋白質(zhì))thatcanimprovebloodsugarregulationandinsulin(胰島素)levelsthroughoutthebodyandsoareassociatedwithimprovedmetabolichealth.Thesegenesweremuchmoreactivewhenthemenhadfastedbeforeexercisethanwhentheyhadbreakfasted.Theimplicationoftheseresultsisthattogainthegreatesthealthbenefitsfromexercise,itmaybewisetoskipeatingfirst.4.Theunderlinedexpression“stomachit”inParagraph1mostprobablymeans“______”.A.digestthemealeasily B.managewithoutbreakfastC.decidewiselywhattoeat D.eatwhateverisoffered5.Whywerethe10peoplechosenfortheexperiment?A.Theirlifestylesweretypicalofordinarypeople.B.Theirlackofexerciseledtooverweight.C.Theycouldwalkatanaveragespeed.D.Theyhadslowmetabolicrates.6.Whathappenedtothosewhoatebreakfastbeforeexercise?A.Theysuccessfullylostweight. B.Theyconsumedabitmorecalories.C.Theyburnedmorefatonaverage. D.Theydisplayedhigherinsulinlevels.7.Whatcouldbelearnedfromtheresearch?A.Aworkoutafterbreakfastimprovesgeneperformances.B.Toomuchworkoutoftenslowsmetabolicrates.C.Lifestyleisnotasimportantasmorningexercise.D.Physicalexercisebeforebreakfastisbetterforhealth.CLastnight’smeteor(流星)showerleftmanypeopleinthecommunitydissatisfiedanddemandinganswers.AccordingtoGabeRothsclild,EmeraldValley’smayor,peoplegatheredinthesuburbsofthecity,carryingheavytelescopes,expectingtowatchthebrightlyburningmeteorspassingthroughthesky.Whattheyfoundinsteadwasaskysobrightenedbythecity’slightsthatitdarkenedthelightofthemeteorspassingoverhead.“Myfamilywassofrustrated,”admittedtownresidentDuaneCosby,“Wewantedtomakethisanunforgettablefamilyouting,butitturnedouttobeahugedisappointments.”Astronomersscientistswhostudystarsandplanetshavebeencomplainingaboutthisproblemfordecades.Theysaythatlightpollutionpreventsthemfromseeingobjectsintheskythattheycouldseequiteeasilyinthepast.Theycallonpeopleandthegovernmenttotakemeasurestofightagainstit.Thereisyetapopulationbesidesprofessionalandamateurstarobserversthatsuffersevenmorefromlightpollution.Thispopulationconsistsofbirds,batsfrogs,snakes,etc.Forexample,outdoorlightingseverelyaffectsmigrating(遷徙的)birds.AccordingtotheInternationalDark-SkyAssociation.“100millionbirdsayearthroughoutNorthAmericadieincrasheswithlightedbuildingsandtowers.”Countlessmoreanimalscasualties(傷亡）resultfromtheuseofartificiallighting.Clearly,peopleenjoythebenefitsoflightingtheirevenings,butsomescientiststhinkitcanbeharmfulforhumans,too.Theyworrythatexposuretolightwhilesleepingcanincreaseperson’schancesofgettingcancer.EmeraldValleyisonlyonecommunitythatisbecomingawareofthenegativeeffectsoflightpollution.Foryears,Flagstaff,Arizona,hasenforcedlightingregulationsinitscityinordertoassistastronomersattheLowellObservatory.Similareffortshavebeenmadeworldwide,andamovementisunderwaytoremindustoturnofflightswhenwearenotusingthem,sothatothercreaturescansharethenight.8.Ithappenedlastnightthatthecity’slightsaffectedthemeteorwatchingB.themeteorsflewpastbeforebeingnoticedC.thecitylightshowattractedmanypeopleD.themeteorwatchingendedupasocialouting9.Whatdotheastronomerscomplainabout?A.MeteorshowersoccurlessoftenthanbeforeB.TheirobservationequipmentisinpoorrepairC.LightpollutionhasremainedunsolvedforyearsD.Theireyesightisfailingduetoartificiallighting10.WhattheauthorconcernedaboutaccordingtoParagraph4?A.BirdsmaytakeothermigrationpathsB.Animal’livinghabitsmaychangesuddenlyC.VarietiesofanimalswillbecomesharplyreducedD.Animals’survivalisthreatenedbyoutdoorlighting11.LightingregulationsinFlagstaff,ArizonaareputintoeffecttoA.LessenthechanceofgettingcancerB.createanidealobservationconditionC.ensurecitizensagoodsleepatnightD.enableallcreaturestoliveinharmonyDIfyouhaveachancetotakeawalkinapark,lookcarefullyatthepeoplewalkingtheirdogs.You’llprobablyfindfriendly-lookingpeoplewithfriendlydogs;quietpeoplewithquietdogs;largemenwithoversizeddogsandlong-hairedwomenwithlong-eareddogs.Asyou’veprobablynoticed,dogsandtheirownerslookalike.Haveyoueverwonderedwhy?Thesesimilaritiesaresocommonthatresearchershavetriedtoexplainthem.Therearetwotheories(理論):theconvergence(趨同)theoryandtheselectiontheory.Theconvergencetheorysaysthatastheownerandthedogspendmoretimetogether,theyinfluenceeachothertothepointwheretheygrowsimilar.Inotherwords,they“converge.”Theselectiontheory,ontheotherhand,saysthatownersareinterestedindogsthatlooklikethem,sotheychoosethosedogsaspets.Recently,researchersattheUniversityofCaliforniadecidedtotestthetwotheoriesbytakingpicturesof45dogsseparatelyfromtheirowners.Thentheyaskedsomestudentstomatchthedogs’photoswiththeirowners.Thestudentswerequitesuccessfulwithpurebred(純種的)dogs:theycorrectlymatched16outof25withtheirowners.However,theyhadalmostnosuccessconnectingmixed-breed(雜交的)dogswiththeirowners.Whenownersselectapurebreddog,theycaneasilypredict(預(yù)測(cè))whatitwilllooklikelater.Butthatisnottruewithmixed-breeddogsbecauseit’shardtopredictwhatamixed-breeddogwilllooklikewhenitgrowsup.Andsinceitwasthepurebredsnotthemixed-breedsthatlookedliketheirowners,theresearchseemstoprovethe“selectiontheory”.Butoneb