用心爱心专心1Unit3(时间:30分钟满分:40分)Ⅰ.单项填空(共15小题;每小题1分,满分15分)1.—Sorry,butIstilldon'tquiteunderstandthatphrase.—OK,letmemakeanothersentenceto________itsmeaning.A.bringaboutB.bringupC.bringoutD.bringin答案C[考查动词词义辨析。bringabout导致;引起;bringup抚养;教育;bringout生产;阐明;bringin提出;引入。句意:——对不起,可是我仍然不明白那个短语的意思。——好的,我再造一个句子来阐明它的含义。]2.Onlyunderspecialcircumstances________totakemakeuptests.A.arefreshmenpermittedB.permittedarefreshmenC.freshmenarepermittedD.arepermittedfreshmen答案A[考查倒装句的用法。only修饰状语位于句首句子用倒装结构。句意:只有在特殊的条件下一年级新生才被允许参加补考。]3.—DoyoumindmeputtingyourphotoontheInternet?—________.A.Yes,goahead,pleaseB.No,IdomindC.I'dratheryoudidn'tD.No,I'dloveto答案C[I'dratheryoudidn't.你最好别这样做。符合语境及句意。]4.—Iwonderwhyhehasbeenactingsostrangelythesedays.—Recentpressureatworkmay________hisbehavior.A.accountforB.callforC.changeforD.standfor答案A[考查动词短语的辨析。accountfor解释;说明;callfor需要;要求;changefor替换;更换;standfor代表。由语境可知A项正确。句意:——我想知道他最近的行为为什么这么怪。——最近工作上压力可能会说明这一原因。]5.—DoyouknowhowIcan________him?—Onhismobilephone.A.learnB.reachC.seekD.touch答案B[考查动词词义辨析。learn学习;得知;reach到达;抵达;此处指联系;seek寻找;touch用心爱心专心2触摸。由语境可知B项正确。句意:——你知道我怎么能联系到他么?——打他的手机。]6.Thecompanycan'taffordtobuythelatestequipmentatpresent.________,theykeeptryingnewwaystoimproveefficiency.A.OnthecontraryB.IncontrastC.NeverthelessD.Furthermore答案C[考查插入语辨析。onthecontrary相反地;incontrast对比;nevertheless不过;然而;furthermore而且。句意:公司目前买不起最新的设备,尽管如此,他们在不停的尝试提高效率。两句话之间存在让步关系,故选nevertheless。]7.Thethemeparkoffersawide________ofactivitiesforthetourists.(2012·黄冈质检)A.circleB.amountC.rangeD.quantity答案C[考查名词词义辨析。circle圆;圆形;amount数量;range范围;一系列;quantity数量。awiderangeof一系列的。句意:这家主题公园为游客提供一系列的活动。]8.Thepolicemenarrivedandsoon________thehouseinwhichtherobbershidthemselves.A.lockedB.placedC.spottedD.ruined答案C[考查动词词义的辨析。lock(用锁)锁上;被锁住;place放置;spot看见;注意到;ruin毁坏。由语境可知C项正确。句意:警察到了并很快就看到了那所抢劫犯隐藏的房子。]9.—Howoftendoyouvisityourparentsinthecountry?—Ifeelashamed.________.A.VeryoftenB.ByaccidentC.JustonceinawhileD.Allofasudden答案C[考查情景交际。由上句的feelashamed可知“只是偶尔去看看。”justonceinawhile偶尔;byaccident偶然地;allofasudden突然地。句意:——你隔多久去看望你在乡下的父母?——很不好意思,我只是偶尔去看看。]10.Ourattitudetowardslifeis________makesthedifferencebetweenourbeinghappyornot.A.thatB.whetherC.whatD.which答案C[考查名词性从句的引导词。分析句子结构可知,从句缺少主语,而which表范围,不符合句意。]11.Whatimpressesmemostis________heappearsinfrontofothers,healwayswearsacharmingsmile.A.whenB.thatC.whereverD.thatwhenever答案D[that引导表语从句时不省略。whenever引导时间状语从句,意为“无论何时”。句意:给我留下印象最深的是无论什么时候他出现在别人面前他都面带迷人的微笑。]12.Afterlosingalargeamountofmoneyonmylastbusiness,I'mnot________thistime.A.takingachanceB.takingawayC.takingonD.takingoff用心爱心专心3答案A[考查动词短语的辨析。takeachance冒险;takeaway带走;takeon呈现;takeoff起飞;脱下。句意:上一次生意我损失了一大笔钱,这次我不能再冒险了。]13.Thisfootballplayerwasaccusedoftakingmoneyfornotscoringgoals________.A.bychanceB.onendC.inturnD.onpurpose答案D[考查介词短语的辨析。bychance碰巧;onend竖着;连续地;inturn反过来;onpurpose故意地。句意:这位足球队员被指控收了别人的钱而故意不进球。]14.—Isthatthesmalltownyouoftenreferto?—Right,justtheone________youknowIusedtoworkforyears.(2012·东北三校联考)A.thatB.whichC.whereD.what答案C[考查定语从句的引导词。句中youknow为插入语,where在从句中作状语。句意:——那就是你经常提到的那个小镇吗?——是的,你知道那就是我过去在那儿工作了好多年的地方。]15.Thetriptothemountainremindedmeofthe________ofmychildhoodwhenIlivedinthecountryside.A.viewsB.scenesC.sceneryD.sights答案B[考查名词词义的辨析。view观点;景色;scene场景;scenery风景;sight名胜;风景。句意:到那座山上去旅游使我想起了住在乡下的童年时代。]Ⅱ.阅读理解(共5小题;每小题2分,满分10分)AcarmadefromabananaHaveyouexperiencedacarmadefromabananaorapineapple?It'snotajoke.ScientistsinBrazilhavedevelopedanewwaytousefibersfromfruitplantstoreinforcecarplastics.Byusingfibersfromseeminglydelicatefruitssuchasbananasandpineapples,thescientistsclaimthattheycanstrengthennewplastics,makingthemnotonlystrongerandlighter,butmoresustainable(可持续的)aswell.“They(thenewplastics)arelight,butverystrong—30percentlighterandthreetofourtimesstrongerthanoldplastics,”researchleaderAlcidesLeaofromSaoPauloStateUniversityinBraziltoldtheAmericanChemicalSociety.SomeofthefiberscanbeasstrongasKevlar,asuperstrongmaterialusedtomakebulletproofvests.Besides,theplasticsarealsomoreresistanttodamagefromheat,water,oxygenandevenspilledgasoline.Cellulose(纤维素)isthemaincomponent(成分)ofwoodandhasbeenusedforcenturiestomakepaper.Recentlyscientistshavediscoveredthatintensive(密集的)processingofwoodreleasestinyornanocellulosefibers,sotinythat50,000couldfitacrossthewidthofasinglehumanhair.Whenmixedwithotherrawmaterials,thesenanocellulosefiberscanmakeplasticsstronger.AccordingtoLeao,pineappleleavesandstems(茎),andaplantrelatedtothepineappleinSouthAmerica,calledcuraua,ratherthanwoodmaybethemostpromisingsourcefornanocellulose.To用心爱心专心4createtheplastics,researchersputtheleavesandstemsofpineapplesandotherplantsintoadevicesimilartoapressurecooker.Thentheyaddedcertainchemicalsandheatedthemixtureoverseveralcycles,producingapowderthatwasthenaddedtotheplastics.Theprocessiscostly,butittakesjust1poundofnanocellulosetoproduce100poundsofsuperstrong,lightweightplastics,Leaopointedout.Somecarmakershavealreadytestedthesenanocelluloseplasticsandscientistshavepredictedtheplasticswouldbeinusewithintwoyears,mainlyforbodiesforcars.【解题导语】本文是一篇有关科普产品的介绍。作者介绍了一种新型的超强、轻型塑料产品的优