2017年12月英语六级考前阅读练习及参考答案

更新日期:2022年06月29日

       AremarkablevarietyofinsectsliveinthisplanetMorespeciesofinsectsexistthanallotheranimalspeciestogether.Insectshavesurvivedonearthformorethan300millionyears, andmaypossesstheabilitytosurviveformillionsmore.Insectscanbefoundalmosteverywhere--onthehighestmountainsandonthebottomofrushingstreams, inthecoldSouthPoleandinbubblinghotsprings.Theydigthroughtheground, jumpandsinginthetrees, andrunanddanceintheair.Theycomeinmanydifferentcolorsandvariousshapes.Insectsareextremelyusefultohumans, pollinating(授粉)ourcropsaswellasflowersinmeadows, forests, desertsandotherareas.Butlicksandsomeinsects, suchasmosquitoesandfleas, cantransmitdisease.Therearemanyreasonswhyinsectsaresosuccessfulatsurviving.Theiramazingabilitytoadaptpermitsthemtoliveinextremerangesoftemperaturesandenvironments.Theoneplacetheyhavenotyetbeenfoundtoanymajorextentisintheopenoceans.Insectscansurviveonawiderange, ofnaturalandartificialfoodspaint, pepper,

glue, books, grain, cotton, otherinsects, plantsandanimalsBecausetheyaresmalltheycanhideintinyspaces.Astrong,

hardbutflexibleshellcoverstheirsoftorgansandisresistanttochemicals, waterandphysicalimpact.Theirwingsgivethemtheoptionofflyingawayfromdangeroussituationsortowardfoodormales.Also, insectshaveanenormousreproductivecapacity:AnAfricanantqueencanlayasmanyas43, 000eggsaday.Anotherreasonfortheirsuccessisthestrategyofprotectivecolor.Aninsectmayberightbeforeoureyes, butnearlyinvisiblebecauseitiscleverlydisguisedlikeagreenleaf, lumpofbrownsoil, graylichen(青苔), aseedorsomeothernaturalobjectSomeinsectsusebright, boldcolorstosendwarningsignalsthattheytastebad, stingorarepoison.Othershavewingpatternsthatlookliketheeyesofahugepredator, bitter-tastinginsects;hungryenemiesarefooledintoavoidingthem.练习题:Choosecorrectanswerstothequestion:1.InsectscanbefoundinlargeamountsinthefollowingplacesEXCEPT_____.A.onthemountainswithlittleairB.inthecoldpolarareasC.inthehotdesertareasD.intheopenoceans2.Insectsprotectthemselvesfromchemicalsby_______A.hidingintinyspacesB.havingastrongshellC.flyingawaywhennecessaryD.changingcolorsorshapes3.Someinsectsdisguiselikenaturalobjectssoasto______A.frightenawaytheirenemiesB.avoidbeingdiscoveredC.sendwarningsignalsD.lookbitter-tasting4.Thepassagementionsthatinsects______.A.canbefoundinanyextremeenvironmentsB.havesurvivedlongerthananyothercreaturesC.canbefedonanynaturalorman-madefoodsD.areimportantforthegrowthofcropsandflowers5.Thepassageismainlyabout______A.howinsectssurviveindifferentplacesB.whyinsectscansurvivesosuccessfullyC.whatinsectscandototheenvironmentD.whereinsectscanbefoundinquantity1.[D] 事实细节问题。这个问题测试对复合句的理解。这个问题涉及两段。第 2 段和第 3 段均指昆虫大量生长的地方。第 3 段第三句中的 oneplace 表示答案。 2. [B] 事实细节问题。这个问题测试对复杂句子的理解。第 4 段的第一句话表明了答案。
        Protectfrom 是 Resistanceto 的同义词。 3. [B] 真假推理题。这个问题测试对长句的理解。最后一段第二句中的几乎看不见,

表示昆虫为了不被发现而伪装, 所以B是正确的选项。其他选项虽然都是为了昆虫伪装的目的, 但与伪装成自然物体无关。
        4. [D] 真假推理题。这个问题测试对包含分词结构的句子的理解。根据第二段倒数第二句中的有用和分词结构授粉, 可以推断昆虫对植物的生长是有益的。选项A、B、C都有any, 太绝对了。从第 3 段的第二句和第三句可以看出选项 A 是错误的。虽然文章一开始就指出昆虫的生存时间很长, 但全文并没有提到它是最长寿的生物, 所以选项B是错误的。至于昆虫食物, 在第3段倒数第二句中提到, 但只是awiderangeof, 所以可以排除选项C。 5. [B] 主要思想。
       这篇文章的前两段首先描述了昆虫是如何长期生存并能生长在各种各样的地方, 然后引出文章的主要观点, 这就是昆虫能够成功生存的原因。第 3 段的第一句是本文的中心句, 所以这道题的正确选项是 B。

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