18秋华师《综合英语（3）》在线作业-2辅导资料

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1、18秋华师《综合英语（3）》在线作业-21、BFJPS2、AGJOS3、DFKMS4、AGIPQ5、DGLMR一、阅读理解共10题，100分1、About200millionyearsago,astheTriassicPeriodcametoaclose,manyspeciesofanimalsdisappearedfromthefaceoftheEarth.Scientistspreviouslybelievedthattheseriesofextinctionshappenedoveraperiodof15to20millionyea

2、rs.RecentdiscoveriesinNovaScotiasuggest,however,thattheextinctionsmayhavehappenedoveramuchshorterperiodoftime,perhapslessthan850,000years.EvidenceforarapidextinctionofspeciesattheencoftheTriassicPeriodisfoundintheMcCoyBrookFormationalongtheBayofFundyinNovaScotia.Fossilsfo

3、undinthisformationindicatearapiddisappearanceofspeciesratherthanaslowandgradualchangeovertime.OneexplanationforarelativelysuddenextinctionattheendoftheTriassicmaybethatalargemeteoritestrucktheearthatthetimeandisresponsiblefora70-kilometerholenearby.Ifgeologistsandotherres

4、earchescanfindevidence,suchasshockedquartzintherockformations,thatameteoritedidstriketheearth,itwouldgivemorecredencetothetheoryofrapidTriassicextinctions.Itispossible,however,thatevenifarapidextinctionhappenedinandaroundNovaSctia,itdidn’tnecessarilyoccurintherestofthewor

5、ld.(1)、Whatisthemaintopicofthispassage?AthedisappearanceofanimalspeciesattheendoftheTrassicPeriodBevidenceofarelativelysuddenextinctionofspeciesCthepossibilityofanextinctionhappeningsimultaneouslythroughouttheworldDameteoriteholeintheBayofFundyinNovaScotia(2)、Whichofthefo

6、llowingisclosestinmeaningtotheword“relatively”inline7?AcomparativelyBindependentlyCphenomenallyDvisibly(3)、Whichofthefollowingbestdescribestheauthor’stone?AaggressiveBexplanatoryCapologeticDcynical(4)、Whichofthefollowingcouldbestreplacetheword“struck”asusedinline8?Aaffect

7、edBdiscoveredCdevastatedDhit(5)、AllofthefollowingwerementionedinthepassageEXCEPTAtheextinctionoflateTrassicanimalsBthedurationoftimefortheextinctionCalargemeteoritehittingtheEarth10millionyearsagoDtheuseoftypesofrockinscientificresearch正确答案是：BFJPS2、LangstonHugheswasoneoft

8、hegreatestAmericanwritersofthetwentiethcentury.HewasborninJoplin,Missouri,andmovedtoClevelandatt