2018_2019学年高中英语module6animalsindanger课下能力提升（二十四）外研版

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1、Module6课下能力提升（二十四）Ⅰ.阅读理解Livinginthewildcanbehard.Findingfoodandstayingsafearen'teasy.Eachday,animalsstruggletosurviveintheirhabitats.Notallanimalsgetbyontheirown.Someanimalsformaclosepartnershipwithotherkindsofanimals.Thesepairingsarecalledsymbiotic(共生的)relationships.Inasymbioticrelationshi

2、p,theanimalsdependoneachother.Oneanimalhelpstheothermeetitsneeds.Soundsgood,right?Notalways.Someanimalsarenotverykindtotheirpartners.Insomecases,oneanimalmeetsitsneedsbuthurtsitspartner.Taketicks(壁虱)forexample.Theseinsectssuckbloodtolive.Togetblood,theyattachthemselvestootherkindsofanimals.Ti

3、ckscanpassgermsthatcausediseaseinsteadofhelpingtheirhosts.Inotherrelationships,animalsdon'ttreattheirpartnerssopoorly.Bothanimalsbenefit,orgethelp,fromlivingwiththeotheranimal.Smallanimalscalledcleanershrimpshavefoundawayofhelpingfishatcoralreefs.Astheirnamesuggests,theshrimpscleanthefish.T

4、heyhangoutatwhatscientistscallacleaningstation.Afishstopsby.Thenashrimpclimbsontothefishandevenstepsintothefish'smouth.Theshrimpusesitstinyclawstopickstuffoffthefish'sbody.Thatcanincludedeadskin,tinypiecesoffood,andweecreaturesthatcanhurtthefish.Thefishgetsanicecleaning.Theshrimpenjoysatastym

5、ealoffishtrash.Smallbirdscalledploversarealsointhecleaningbusiness.Theyhavebigcustomers,crocodiles.Crocodileshavelongsnouts(口鼻部)filledwithsharpteeth.Cleaningthemistricky.Whenacrocodileopensitsmouth,theploverhopsrightin.Thecrocodiledoesnotsnapitssnoutshut.Instead,itletstheplovereatsmall,harmf

6、ulanimalsattachedtoitsteeth.Theplovergetsaneasymealwhilethecrocodilegetscleanteeth.1．Thetextismainlyabout________.A．thehardlifeinthewildB．somedangerousanimalsC．animalslivingtogetherD．animalsinasymbioticrelationship解析：选D　主旨大意题。本文主要介绍了生物界的一种共生现象，也就是说生物之间相互依存、相互帮助。故答案选D项。选项C表达语意不准确，表达范围太广。2．Acco

7、rdingtothetext,inasymbioticrelationship,________.A．animalsdependoneachotherB．birdsdependonanimalsforfoodC．bothsidescangethelpD．notallanimalstreattheirpartnerswell解析：选D　推理判断题。由文章第二、三、四段可知，有共生现象的动物中，有的是相互得到帮助，而有的是单方面的。故答案为D项。3．Whenplovershopint