【{"content":"Therearenosignsof-查字典问答网

来自吕志慧的问题

　　【{"content":"TherearenosignsoflittlegreenmenonMarsuff0eButnewdiscoveriesofferabitmorehopethatsomeformsoflifeexistedthereinthepast-andperhapsisstillthereatpresentuff0eMethaneuff08u7532u70f7uff09andwaterhavebee】

　　{"content":"

　　TherearenosignsoflittlegreenmenonMarsuff0eButnewdiscoveriesofferabitmorehopethatsomeformsoflifeexistedthereinthepast-andperhapsisstillthereatpresentuff0eMethane uff08u7532u70f7uff09andwaterhavebeenfoundontheredplanetuff0eTheybothshowthepossibilityoflifeuff0e

　　Accordingtoanewreportuff0ctheMarsroverCuriosity uff08u597du5947u53f7u706bu661fu63a2u6d4bu5668uff09hascheckedsomemethaneintheairuff0eThiskindofgasisalsofoundinEarth'satmosphere uff08u5927u6c14u5c42uff09uff0eItcomesfromanimalandplantlifeuff0candfromtheenvironmentitselfuff0eIfthere'smethaneinMars'satmosphereuff0cwhereisitfromuff1fScientistsarenotsureuff0eButitmarksabigchangeuff0eInSeptember2013uff0cCuriosityfoundtherewasalmostnomethaneintheMartianairuff0eJustmonthslateruff0choweveruff0ctheroverpickedupabitofthiskindofgasuff0e

　　"It surprisedusuff0c"saysChristopherWebsterinCaliforniauff0eHeistheleadscientistfortheinstrumentontheroverthatchecksmethaneuff0eWebstersaysuff0c"Everytimewelookedtherewasmethaneuff0eButfindingoutwhat'sresponsibleformethaneisreallyimportantuff0e"

　　ThediscoveryofwateronMarsisnothingnewuff0eForabouttenyearsuff0cscientistshavehadfactsthatitappearedonthesurfaceoftheplanetmillionsofyearsagouff0eButaccordingtoanothernewreportfromCuriosityuff0cwhilethesurfacewateronMarsseemstobelonggoneuff0cthere'salotmoreofitleftthanmostpeoplerealizeuff0e

　　Butwherethereis uff08orwasuff09wateruff0ctherecouldbe uff08orcouldhavebeenuff09lifeuff0e""questionList":{"1":{"type":1"title":"Theroverhasdiscovered___onMarsrecentlyuff0e""answer":"u7ec6u8282u7406u89e3u9898uff0eu6839u636eAccordingtoanewreportuff0ctheMarsroverCuriosityhascheckedsomemethaneintheairuff0eu53efu77e5uff0cu63a2u6d4bu5668u6700u8fd1u53d1u73b0u7684u662fmethaneuff0cu7532u70f7uff0e""options":{"A":"men""B":"life""C":"oil""D":"methane"}"choose":"D"}"2":{"type":1"title":"Theunderlinedword"It"refersto___uff0e""answer":"u8bcdu4e49u731cu6d4bu9898uff0eItu5b58u5728u4e8eu6bb5u999

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2020-11-30 23:11

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　　38．D．细节理解题．根据Accordingtoanewreport，theMarsroverCuriosityhascheckedsomemethaneintheair．可知，探测器最近发现的是methane，甲烷．

　　39．A．词义猜测题．It存在于段首，说明其代表的内容存在于上一段，根据InSeptember2013，CuriosityfoundtherewasalmostnomethaneintheMartianair．Justmonthslater，however，theroverpickedupabitofthiskindofgas．最初并没有发现甲烷，但是几个月后，却发现了甲烷，而星球中出现甲烷就代表可能存在生命，因此在火星上发现甲烷这件事情让科学家震惊．

　　40．B．细节理解题．根据文中第三段，"Itsurprisedus，"saysChristopherWebsterinCalifornia．Heistheleadscientistfortheinstrumentontheroverthatchecksmethane．可知，ChristopherWebster是探测器装备（instrument）研究的首席科学家．

　　41．C．文章主旨题．根据全文的内容，主要讲述的内容是火星上是否存在生命，以及好奇号火星探测器的一些发现，且文中首段就提到TherearenosignsoflittlegreenmenonMars．Butnewdiscoveriesofferabitmorehopethatsomeformsoflifeexistedthereinthepast-andperhapsisstillthereatpresent．可知正确答案为C．

2020-11-30 23:11:55

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