备战2025年中考英语-寒假每日专题练习三（4份打包含答案）.docxVIP

Day13航天发展与宇宙探索

I.完形填空。[2024·厦门海沧区三模]

[科学素质·科学探究]

Earthhostslife.Saturnhasrings.Marsiscoveredinreddust,andJupiterishuge.Yes,everyplanetinthesolarsystemhassomethingspecialthatmakesitstandoutamongtherest.Don’tyoubelieveusJustlookatNeptune—it’srainingdiamondsthere!

AsthefarthestplanetfromtheSun,Neptunehaslongbeendifficulttostudy.Infact,it’soneoftheonlytwoinoursolarsystemthatcan’tbeseenwithnakedeyes(肉眼).Neptunewasalsotheonlyplanetpredictedtoexist(存在)byscientistsin1821beforeitwaseveractuallyseen.

Expertshavelearnedquiteabitaboutthisplanetsinceitsdiscoveryin1846.ScientistMarvinRosspredictedin1981thattheplanethaddiamondrain.HesaidbothNeptuneandUranusmayexperiencethis.In2020,anexperimentwasperformedtoshowitcouldhappen.

Tocarryoutthisexperiment,researchersatStanfordUniversitymodeledtheconditionsonNeptuneinsidetheirlab.Theystartedbyputtingpolystyreneundergreatpressureandheat.Then,theysentshockwavesthroughthematerialbyusingalaser(激光).Thethingsthatmakeuppolystyreneseparatefromeachother.Thisresultedincarbonandhydrogenatoms.Underpressure,thecarbonturnedintodiamondsbeforetheireyes.Usingx-rays,researcherswatchedwhathappened.Theybelieveit’spossiblethatdiamondsraindownontheplanet.

Justimagine!WhatwoulditbeliketogetcaughtinthemiddleofadiamondshoweronNeptuneNohumanbeingcanspeaktotheexperienceyet.WouldyouliketoseeadiamondshoweronNeptuneonedayAnythingispossible.Maybeyou’llinventthenextgreatspacetechnologythatwilltakeusthere!

()1.Accordingtothetext,what’sspecialaboutNeptune

A.Ithasrings.B.Itrainsalot.

C.It’scoveredinreddust.D.Itmayhavediamondrain.

()2.[跨学科·物理]SupposeNstandsforNeptune.Pictureshowsthe

rightlocationofNeptune.

()3.WhenwasNeptunediscovered

A.In182