还剩3页未读,继续阅读
文本内容:
下半年公共英语二级考试根底练习题2023下半年公共英语二级考试根底练习题2023The Northern Pike isa verybad fish.It isa big,hungryfish,and eatslittle fish.Many NorthernPike livein LakeDavis.Theyare killingall thesmaller fishin the lake.TheNorthern Pikearea seriousdanger to the lakebecausethey eatall thesmallerfish.Soon,all otherkinds offishinthe lakewill bekilled off.This isnot healthyfortheenviro ent(环境).Researchers areafraid thattheNorthern Pike,will swim out ofLakeDavis throughmanysmaller riversthat feedinto thelake.They couldspreadall overthe countryand damagemany otherwaterenviro ents.If thathappens,itwould betoolate tostop the NorthernPike.For tenyears,officialshave beentrying toremove theNorthern Pike fromLake Davis.They havetried usingsand poisons(毒药).However,theNorthern Pike population isstill doingwell in Lake Davis.Many peopledo notlikethe ideaof usingpoison tokill thefish.They worrythatthe poisonsare badfor humanswho usethe water.However,people havent foundany poisonsatall inlocal当地的wells.Scientists aregoing totry thepoison again.Thistime,they willdry off thelakebefore puttingthepoisonin.Apublic hearing will beheld totalk aboutthe problem.13This textis mostprobably.A.ashort storyB.anews reportC.flresearch paperD.anofficial announcement14What couldhappen iftheNorthernPikeswimout ofLake DavisA.Theycould beoutofcontrol.B.Thesmaller fishwould besaved.C.Theenviro entcould beimproved.D.Manysmall riverswould bepoisoned.15What wasthe resultofusing poisonsin LakeDavisA.Peoplestopped usingthe wellwater.B.Thelake wasseriously damaged.C.Thepoisons workedas expected.D.Therewere hardlyany effects.16A publichearingwillbeheld becauseA.localpeople objecttotheuse ofpoisonsB.the NorthernPikehave spreadto otherlakesC.peopleare stronglyagainst dryingoffthelakeD.theharm ofthe NorthernPike isseldom heardof答案解析13:B白斑狗鱼是一种非常有害的鱼类它体型很大,容易饥饿,以捕食其他小型鱼类为生许多白斑狗鱼居住在戴维斯湖它们捕杀那里的小型鱼类白斑狗鱼对戴维斯湖造成了严重的威胁,因为它们捕食那里的所有小型鱼类不久,湖中的所有其他鱼类都会被它们吃光这对环境来说是不安康的.研究人员担忧白斑狗鱼会通过许多汇入戴维斯湖的小河游出戴维斯湖这样它们就可能遍布整个国家,危害许多其他的水域假如这种情况发生,到时再阻止白斑狗鱼就太晚了十年来,官员们试图将白斑狗鱼移出戴维斯湖他们尝试用网捕捞和用毒药毒杀白斑狗鱼但是,白斑狗鱼仍然在戴维斯湖生活得很好许多人不赞成用毒药毒杀白斑狗鱼他们担忧毒药对同样使用湖水的人类有害但是,人们尚未在当地的井水中发现任何毒药的痕迹科学家打算再次尝试毒药这一次,他们将会先抽干湖水,然后放入毒药为了讨论这个问题,将会召开一次向公众开放的听证会推理题题干意为“这篇文章的体裁可能是什么?”由文章表达的口吻可知文章是从观察者的角度来客观陈述戴维斯湖面临的一个问题,由此可推断文章体裁最有可能是一篇新闻报道,故B为正确答案14:A细节题题干意为“假如白斑狗鱼游出戴维斯湖将会发生什么?”由文章第二段可知,假如白斑狗鱼游出戴维斯湖将会遍布全国,给更多的水域造成危害,到那时再阻止它们就来不及了由此可知,假如任由它们游出戴维斯湖,那么会失去对它们的控制故A为正确答案15D细节题题干意为“在戴维斯湖使用毒药的结果是什么?”由文章第三段第
二、三句They havetriedusing sandpoisons.However,theNorthernPikepopulationis stilldoingwellinLakeDavis.”可知,毒药对白斑狗鱼没有产生任何效果故I为正确答案16A推理题题干意为“将要召开向公众开放的听证会是因为什么?”由文章第三段可知,人们反对用毒药毒杀白斑狗鱼,因为害怕人们使用的井水受到污染而第四段第一句话指出科学家打算再次尝试用毒药消灭白斑狗鱼,由此可以推出,召开听证会的原因是当地居民反对使用毒药,为此要征求大家的意见故A为正确答案。