2024年人教版八年级上册英语第五单元课后练习4（含答案和概念）

2024年人教版八年级上册英语第五单元课后练习4（含答案和概念）试题部分一、选择题：1.InUnit5,whichwordisusedtodescribesomethingthatisverylarge?A.tinyB.hugeC.smallD.tall2.Whatistheoppositeof"expensive"?A.cheapB.costlyC.valuableD.worthlessA.heavyB.lightC.bigD.small4.Whichofthefollowingsentencesiscorrect?A.Sheistallerthanme.B.SheistallerthanI.C.SheistallerthanIam.D.SheistallerthanIwillbe.5.Whatdoesthephrase"onceuponatime"mean?A.AlongtimeagoB.InthefutureC.RightnowD.Everyday6.Whichwordisusedtodescribesomethingthatisveryimportant?A.minorB.majorC.trivialD.significantA.rainsB.rainC.willrainD.israining8.Whatisthepasttenseof"do"?A.didB.doneC.doesD.doing9.Whichofthefollowingwordsisanoun?A.RunB.RunningC.RanD.Runner10.Whatisthecorrectformoftheword"courageous"?A.couragousB.couragiousC.couriousD.courageous二、判断题：1."Big"and"large"havethesamemeaning.()2."Expensive"and"cheap"aresynonyms.()3."Onceuponatime"isusedtostartastorysetinthepresent.()4.Theoppositeof"minor"is"major".()5."Did"isthepasttenseof"do".()6."Runner"isaverb.()7."Courageous"isspelledas"couragous".()8."Ifitrainstomorrow,wewillstayathome"isacorrectsentence.()9."Sheistallerthanme"isagrammaticallycorrectsentence.()10.Thephrase"onceuponatime"means"inthefuture".()三、填空题：1.Theoppositeof"north"is_______.2.Thechemicalsymbolforgoldis_______.3.Inatriangle,thesumoftheanglesisalways_______degrees.4.Theprocesswhichplantsmakefoodiscalled_______.5.Thethreestatesofmatteraresolid,liquid,and_______.6.Theperiodictableisorganized_______andatomicnumber.7.Theformulaforwateris_______.8.Thelargestplanetinoursolarsystemis_______.9.Thetheoryofevolutionwasproposed_______.10.Thestudyofancientartifactsiscalled_______.11.Theprocessofphotosynthesisrequires_______andcarbondioxide.12.ThelayersoftheEartharethecrust,mantle,and_______.13.Thespeedoflightinavacuumisapproximately_______meterspersecond.14.ThecurrencyusedinJapanisthe_______.15.TheGreatWallofChinawasbuilttoprotectagainst_______invasions.16.ThefirstemperorofaunifiedChinawas_______.17.Theinventionoftheprintingpressiscreditedto_______.18.Thenovel"PrideandPrejudice"waswritten_______.19.Theplay"RomeoandJuliet"waswritten_______.20.Thepainting"MonaLisa"wascreated_______.四、简答题：1.Explainthedifferencebetweenademocracyandanoligarchy.2.DescribethemainfeaturesoftheRenaissanceperiod.3.WhatisthesignificanceoftheMagnaCartainhistory?4.Howdoesthewatercyclework?5.Whatistheroleofchlorophyllinphotosynthesis?6.ExplainthethreelawsofmotionasformulatedIsaacNewton.7.WhatcausestheseasonsonEarth?8.Howdoesabatteryconvertchemicalenergyintoelectricalenergy?9.WhatisthepurposeoftheDeclarationofIndependence?10.WhatarethethreebranchesoftheUnitedStatesgovernment?三、填空题答案：1.south2.Au3.1804.photosynthesis5.gas6.atomicmass7.H2O8.Jupiter9.CharlesDarwin10.archaeology11.sunlight12.core13.299,792,45814.yen15.Mongolian16.QinShiHuang17.JohannesGutenberg18.JaneAusten19.WilliamShakespeare20.LeonardodaVinci四、简答题答案：1.Inademocracy,powerisvestedinthepeople,whoexerciseitdirectlyorthroughfreelyelectedrepresentatives.Inanoligarchy,powerisheldasmallgroupofindividuals.2.TheRenaissancewasaperiodofcultural,artistic,andintellectualgrowthcharacterizedarevivalofclassicallearningandwisdom.3.TheMagnaCartaissignificantbecauseitestablishedtheprinciplethateveryone,includingtheking,issubjecttothelaw.4.Thewatercycledescribesthecontinuousmovementofwateron,above,andbelowthesurfaceoftheEarth.5.Chlorophyllisthepigmentinplantsthatabsorbslightenergyforphotosynthesis.6.Newton'sthreelawsofmotionare:(1)Anobjectatreststaysatrestandanobjectinmotionstaysinmotionwiththesamespeedandinthesamedirectionunlessacteduponanunbalancedforce.(2)Theaccelerationofanobjectasproducedanetforceisdirectlyproportionaltothemagnitudeofthenetforce,inthesamedirectionasthenetforce,andinverselyproportionaltothemassoftheobject.(3)Foreveryaction,thereisanequalandoppositereaction.7.TheseasonsarecausedthetiltoftheEarth'saxisandtheEarth'sorbitaroundtheSun.8.Abatteryconvertschemicalenergyintoelectricalenergythrougharedoxreaction.9.ThepurposeoftheDeclarationofIndependencewastoannouncetheseparationofthethirteenAmericancoloniesfromGreatBritain.10.ThethreebranchesoftheUnitedStatesgovernmentarethelegislative,executive,andjudicialbranches.Geography:Understandingdirections(north/south),layersoftheEarth(crust,mantle,core),andnaturalphenomena(watercycle,seasons).Chemistry:Knowledgeofelements(gold),chemicalsymbols,statesofmatter,andbasicchemicalprocesses(photosynthesis,batteryfunction).Physics:Lawsofmotion,speedoflight,andenergyconversion.History:Historicalevents(MagnaCarta,Renaissance,DeclarationofIndependence),significantfigures(IsaacNewton,CharlesDarwin,JohannesGutenberg),andculturalartifacts(GreatWallof