第15练阅读＋七选五＋语法填空＋短文改错Ⅰ.阅读理解A体裁：记叙文话题：动物世界词数：330时间：7′Tropicalfishhobbyistswilltellyoutheirtanksareasourceofrelaxation，butrecentresearchsuggeststhefishmightdisagree.ManyAmericanhouseholdscontainafishtank，whoseaveragesizeislessthan10gallons.Yetastudycomparingthebehaviorofcommonfreshwaterfishfoundthatthosekeptinsuchsmalltanksweremoreaggressivethanthoseinlargeronesandweremorelikelytofight.“Ifpeoplekeptdogsintheseconditions，they'dbeputinprison”，saidtheauthor，RonaldOldfield.“Inlargertanks，thefishwerenotincontinuouseyesightofeachother.Theywereswimmingaround，checkingeverythingoutratherthanbeatingeachother”，headded.“It'ssomethingweshouldthinkabout.”Thestudyconsistedoftwoexperiments.Inone，Dr.Oldfieldtestedtheeffectsofovercrowdingbykeepingtanksizeconstant(不变)whileincreasingthenumberoffish.Intheother，hetestedenvironmentbyplacingthreefishintanksofdifferentsizes.Hethenrecordedtheirbehavioratleasttwohoursafterfeeding，toeliminate(排除)competitivebehaviorsrelatedtofood.Whileaggressionseemedtoremainconstantregardlessofthenumberoffishinatank，itdroppedoffconsiderablyoncethefishwereplacedina100－gallontankwithseveralplantsandrockstoformshelters.ThefindingsconfirmedwhathefoundwhenobservingMidasinthewild.“Ifyougooutandobservethesefishswimminginariver”，hesaid“，they'renotaggressiveatall，really.”ThisconclusionisnotnewstoJustinMuir，theownerofafishtankbusiness.“Morevolumeofwaterisalwaysbetter.Itkeepsthefishhealthier，andthetankismorestable.”【语篇解读】本文叙述了热带鱼的生活习性。当它们的生活空间越小时，它们的侵略性就越强；反之，如果生活空间越大，侵略性越小。1．Wecanconcludefromthestudythat________．A．thefishinsmallriversaremorelikelytofightthanthoseinlargeronesB．ifyoukeepfishintanksoflessthan10gallons，you'llbeputintoprisonC．peoplehaven'tpaidenoughattentiontothefeelingoffishinsmallertanksD．thefishinthewildaremoreaggressivethanthosekeptintanks答案C[推理判断题。由第二段和第三段内容可知，人们大多把鱼养在小的鱼缸里，故选C项。A项中讲的是河流，而全文讲的是鱼缸，故A项错误；由第三段第一句可知B项错误；由全文特别是最后一段可知D项错误。]2．Howwasthefirstexperimentperformed?A．Byputtingmoreandmorefishinthesametank.B．Byputtingfishintanksofdifferentsizes.C．Byputtingsomefoodtotestthebehavioroffish.D．Byputtingfishinatankwithplantsandrocks.答案A[细节理解题。由第四段第二句可知答案。]3．Thetwoexperimentsprovethat________．A．foodcompetitionresultsintheaggressivebehavioroffishB．fishbecomemoreaggressiveasmorefishareputintoatankC．crowdingisthemaincauseoftheaggressivebehavioroffishD．fishbecomelessaggressivewhenplacedina100－gallontank答案D[推理判断题。由倒数第二段最后一句可知，如果把鱼放在100加仑的鱼缸里，它们会停止攻击，故选D项。A项太片面；由倒数第二段最后一句可排除B、C两项。]4．Thebesttitleforthispassagemightbe________．A．Animals'RighttoLiveatEaseB．PictureofRelaxationOnlyIfYou'reNotInsideC．HowtoKeepTropicalFishasPetsD．HowtoDealwithFish'sAggressiveBehavior答案B[主旨大意题。由短文内容可知，作者主要告诉我们鱼缸的大小决定鱼生活得是否舒适、侵略性的大小，故选B项。]B体裁：说明文话题：青少年成长词数：300时间：7′Teenagerswhositdowntofamilymealsarelesslikelytobedepressedortakeriskswithdrugsandalcohol，newresearchshows.Anewstudylookingattheroleoffamilymealsinthehealthandwell－beingofyoungpeopleisthefirststudyontheissueinNewZealand.Itusesdataco...
