2025届高三上学期英语复习专项每日一练话题 七选五 Day 25.docx

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Passage1

Topic:TheCarbonCycleandGlobalWarming

Carbonisanessentialpartofournaturalenvironmentandplaysacrucialroleinacomplexcycle.(1)_______Itexistsinalllivingthingsandcanbefoundinthesoil,oceans,atmosphere,anddeepundergroundrocks.Whenplantsandotherorganismsdie,asignificantportionoftheirstoredcarbonreturnstotheatmosphere.(2)_____Thisprocesscontinuesuntilnewplantsgrowandreabsorbthecarbon,maintainingacertainbalance.

However,overmillionsofyears,someofthecarbonfromancienttreesandsealifetransforms.(3)____Partofitbecomesrock,whileanotherpartturnsintofossilfuelslikecoal,oil,andnaturalgas.Naturaleventssuchasvolcaniceruptionsalsoaffectthecarboncycle.(4)____Theyreleasesomeofthecarbontrappedinrocks.Butinrecenttimes,humanactivitieshavehadamajorimpact.(5)____Burningfossilfuels,forexample,releasesprehistoriccarbonthatwasstoredforalongtime.

Today,humansreleasefarmorecarbonthannaturalsourceslikevolcanoes.ThisoverloadstheEarthscarboncycleandleadstoabuildupofcarbonintheatmosphereandoceans.Plantingmoretreescanbebeneficial,butitsnotenough.Thekeytostoppingglobalwarmingistohalttheexcessivereleaseofcarbonintotheair.

Options:

A.Thistransformationisalongandslowbutimportantprocess.

B.Thecarbonintheatmosphereisconstantlyinastateofflux.

C.Thesenaturaleventsarepartofthenormalcarboncycle.

D.Thisishowthecarboncyclehasfunctionedforages.

E.Humanactivitieshavebecomeadominantforceinthecarboncycle.

F.Thecarbonstoredindifferentformshasdifferentfates.

G.Thisemphasizestheneedtocontrolhumancarbonemissions.

Answer:1.D2.A3.F4.C5.E

Passage2

Topic:TheMysteriousUranus:UnravelingNewInsights

Uranus,thethirdlargestplanetinoursolarsystem,haslongintriguedastronomers.(1)_______Sinceitsd