一、单项填空(从题中所给的A、B、C、D四个选项中，选出最佳选项)1.Ahugeamountofenvironmentaldamagehasbeen_______bythedestructionoftherainforests.A.broughtinB.broughtupC.broughtaboutD.broughtdown【答案】C【解析】bringin收获，得到，引进；bringup提出，抚养，教育；bringabout引起，实现，导致，带来；bringdown降低。句意：对热带雨林的破坏给环境带来了很大的危害。2.ThetwoChinesescientistshavemadeawonderfuldiscovery,whichmarksamajor_______inthebasicresearchinthefield.A.boomB.businessC.burdenD.breakthrough【答案】D【解析】繁荣，景气；business事务，事情；burden重担，重负，责任，义务；breakthrough突破。句意：这两个中国科学家做出重大发现，这标志着这个领域的重大突破。3.Thegovernmenthastakenmeasuresto_______thepricesofdailynecessitiestokeepthemarketstable.A.blowdownB.breakdownC.bringaboutD.bringdown【答案】D4.ItwasatthatmomentthatInoticedthecarwas_______upanddownasifsomeonewerejumpingonitA.boomingB.bouncingC.brushingD.braking【答案】B【解析】bounce弹起，bounceupanddown上下颠簸。句意：就在那个时候我注意到那辆车在上下颠簸，好像有人在车上蹦跳似的。boom隆隆响；brush轻擦，掠过(某人/某物)；brake刹车。5.—Doyoubelievethatdifficultsituationsorhardexperiences_______thebestqualitiesofaman?—Thereisnodoubtaboutthat.A.bringinB.bringoutC.bringforwardD.bringup【答案】B【解析】bringin引进；bringout使显出；bringforward提出；bringup提出。句意：“你相信困难的处境或者艰苦的经历能显现出一个人好的品质吗？”“我深信不疑。”6.AgovernmentspokespersononFridaycalledforChina’s500millionInternetusersto_______unconfirmedonlinerumors.A.boycottB.bearC.advocateD.ban【答案】A【解析】boycott(联合)抵制；bear忍受，容忍；advocate提倡，拥护；ban禁止，取缔。句意：政府发言人周五要求中国5亿互联网用户联合抵制网络谣言。7.Heisveryawareofwhattopicsheshouldandshouldnot_______attheconference.A.bringbackB.bringaboutC.bringupD.bringin【答案】C【解析】bringback送还，带回，使恢复；bringabout引起，实现，导致，带来；bringup提出；bringin引进。句意：在会议上，他很清楚自己应该和不应该提出什么样的话题。8.Weall_______asighofreliefwhenthenewscamewhethernoonewasinjuredintheaccident.A.balancedB.boreC.breathedD.blessed【答案】C【解析】breatheasighofrelief：松了一口气，松了口气，宽慰地舒一口气。句意：当听到事故中没有人受伤的消息传来，我们大家都松了一口气。9.Herewefoundlittlesnow,asmostofitseemedtohavebeen_______themountain.A.blownupB.blowndownC.blownoffD.brokendown【答案】C10.Whenthereachedthetopofthehill,they_______sotheyhadtostopforarest.A.heldtheirbreathB.gottheirbreathbackC.losttheirbreathD.outofbreath【答案】C【解析】holdone’sbreath屏住呼吸；getone’sbreathback喘过气来；losetheirbreath喘不过气来；outofbreath上气不接下气(不可以作谓语)。句意：当他到达山顶的时候，他们喘不过气来，因此他们不得不停下来休息一会。11.Curiosityispartofchildren’snature.Theyalwaysinsistongettingtothe_______ofeverything.A.brandB.backgroundC.basisD.bottom【答案】D【解析】gettothebottomof“弄清……的底细”，符合语境。句意：好奇心是孩子们的天性，他们总喜欢刨根问底。12.Atleast30percentofthegovernmentspeechesabandon_______tonesandembracedthemostpopularcyberwordsdevelopedbyChinesenetizensinthepastyear.A.brokenB.bureaucraticC.blindD.broad【答案】B【解析】broken违反的，不守约的，(语言)拙劣的，结结巴巴的；bureaucratic官僚的；blind盲目的；broad概括的。句意：至少百分之三十的政府演讲摒弃了官腔并接受中国网民在过去的一年中开发的最流行的网络词汇。13.Thegovernmenthadto_______privatehousest...