高考点睛卷02-2021年高考英语模拟考场押题点睛卷(山东卷)（解析版）.docx

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1、02-2021年高考模拟考场押题点睛卷(山东卷)英语试卷（考试时间：120分钟试卷满分：150分）注意事项：1.答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。2.回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上，写在本试卷上无效。3.考试结束后，将本试卷和答题卡一并交回。第一部分阅读理解(共两节，满分50分)第一节(共15小题；每小题2.5分，满分37.5分)阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。AUnsolvedMysterie

2、sAboutthePlanetEarthMystery1:Wheredidwatercomefrom?Watercoversmorethan70percentoftheEarth'ssurfaceandthatmakestheEarthearnthenickname"theblueplanet".Thenwherediwatercomefrom?ThemostpopularscientifictheorystatesthattheH2camefromseveralviolentasteroids(小行星）coveredwithice.Anothesuggeststha

3、tthewateractuallyhasbeenaroundsincetheEarth'sformationHoweverithappened,though,it'scertainlyworkedoutwellfortheEarthlifeforms.Mystery2:Whataboutalltheoxygen?Anotherthingistheplanet'soxygen.Tinycreaturesreleasedoxygenasawasteproduct,fillingtheatmospherewithit.Afterthat,thelevelofoxygeint

4、heEarth'satmospherewentwildlyupanddownuntilitfinallycalmedownaround540millionyearsago.Sincethen,it'sremainedataboutthebreathablelevelweknowtoday.Butwhatcausedittobesuddenlysteady?·Mystery3:WhatcausedtheCambrian(寒武纪）Explosion?TheCambrianExplosionreferstotheexplosionofcomplexlifeformsthat

5、occurredonEarthabout540millionyearsago.Beforethen,lifehadconsistedmostlyofmicrobes.ButatthebeginningoftheCambrianperiodcomplexcreaturesbegandevelopingatarateneverseenbefore.Suddenly,lifeformshadbrains,eyes,andbones.MostlivingcreaturestodaycantracetheirbloodbacktotheCambrianperiod.Myster

6、y4:Willwebeabletopredictearthquakes?Westillhaven'tbeenabletocomeupwithawaytoaccuratelypredictearthquakes.Wecancertainlytry,butourcurrenttechnologycannotpredictthemexactly.Weknowthatearthquakesstartwhentherockcracksundergroundandtheenormousenergyreleasedintheprocesscausesvibration,whichg

7、eneratesearthquakewaves,butwehaven'tfiguredoutwhythathappens,orhowtopredictit.1.WhatwascreatedbycreaturesonEarth?A.Water.B.Bacterium.C.Oxygen.D.Ice.【答案】C【解析】细节理解题。根据Mystery2:Whataboutalltheoxygen?部分中的Tinycreaturesreleasedoxygenasawasteproduct可知，微生物把氧气当作废弃物释放出来。因此，氧气是地球上的微生物创造出来