高中英语人教版必修三课时作业Unit4PeriodFour

PeriodFourGrammar&WritingⅠ.用适当的连接词填空1．Itisstillunderdebate________builtthePyramidinancienttimes.2．_________worksouttheproblemwillgettheprize.3．________theydidmadenodifference.4．_________theforeignteacherswillcomeontimeisstillaquestion.5．________theywerelateagainmadeourteacherangry.6．Ithasnotbeenclearsofar________classwillwinthematch.7．________yousaidtomeislikefreshair.8．________theywillcomebackbyairhasbeendecided.9．Itisstillamystery________shecouldsurviveundertheruinsfor10days.10．Itisuncertain________hewillrecoverfromtheseriousillness.Ⅱ.完成句子1．________________________(我想说的)isthatit’syourfault.2．________________________________(他们什么时候能回来)hasn’tbeendecided.3．Itisclear________________________________(他是一个乞丐)．4．________________________________(他要请谁)isnotimportant.5．________________________________________________________________(我们将在哪里举行篮球赛)isnotclear.Ⅲ.单项填空1．________hashelpedtosavethedrowninggirlisworthpraising.A．WhoB．TheoneC．AnyoneD．Whoever2．________madetheschoolproudwas________morethan90%ofthestudentshadbeenadmittedtothekeyuniversities.A．What；becauseB．What；thatC．That；whatD．That；because3．________fashiondiffersfromcountrytocountrymayreflecttheculturaldifferencesfromoneaspect.A．WhatB．ThatC．ThisD．Which4．Iaskedhim________.A．whichonedidhelikebestB．whichonehelikedbestC．whichonehelikesbestD．whichonedoeshelikebest5．Isittrue________therainstops，itwillbeashotasinthesummerhere?A．whenB．thatwhenC．wheneverD．that6．________peoplespendsomuchmoneyontheirpets________usalot.A．That；surprisesB．What；surprisingC．How；aresurprisedD．That；issurprised7．AfterYangLiweisucceededincirclingtheearth，________ourastronautsdesiretodoistowalkinspace.A．whereB．whatC．thatD．how8．TheForeignMinistersaid,“________ourhopethatthetwosideswillworktogethertowardspeace.”A．ThisisB．ThereisC．ThatisD．Itis9．Itissaid________________wasall________hesaid.A．that；that；thatB．what；what；whatC．that；which；whatD．that；that；which10．________yougoorstayathomewon’tmakeanydifference.A．IfB．WhetherC．ThatD．When11．Heis________isknownasahacker(黑客)—helikestoshowoffontheInternetandattackwebsites.A．thatB．whoC．whichD．what12．________thegirldidn’ttakehermedicinemadehermotherangry.A．WhatB．WhyC．WhichD．That13．________wecan’tgetseemsbetterthan________wehave.A．What；whatB．What；thatC．That；whatD．That；that14．Itmatterslittle________amandies，but________mattersmuchis________helives.A．how；what；howB．how；it；howC．why；it；whyD．that；what；that15．________makesmistakesmustcorrectthem.A．WhatB．ThatC．WhoeverD．WhateverⅣ.阅读理解AninternationalteamofastronomershasdiscoveredaplanetslightlylargerthanJupiterthatorbitsastar500lightyearsfromEarth.Averygoodtelescopewasnotevenrequired；theyfoundtheplanetusingseveralsmalltelescopesmuchlikethoseusedbyamateurastronomers.ThenewplanetisnamedTrES­2becauseitisthesecondsuchplanetfoundbyscientistsworkingontheTrans­AtlanticExoplanetSurvey(TrES)．Itisatransitingplanet(凌日行星)，meaningitcanbeseentransiting，ormoving，acrossthestaritorbits.TedDunham，aninstrumentscientistatArizona’sLowellObservatory，saystransitingplanetsarespecialbecauseresearcherscanansweralotofquestionsaboutthem.Allittakesissomemathandsomeobservationsabouttheplanetanditsrelationshiptoitsstar.Buthowbigisit？Howlongisitsyear(thetimeittakestoorbitarounditsstar)？Howmuchwouldyouweighifyouwerethere?“TrES­2isalittlebiggerthanJupiter，hasa‘year’thatisalittlelessthantwoandahalfdays，andisalittlemoremassivethanJupiter，”explainsDunham.Fromitsmassandradius(thedistanceacrosstheplanet)scientistscanfigureoutthedensityoftheplanet—whetheritismadeofrock，gas，oracombinationofthetwo.(TrES­2ismadeupmainlyofgas.)Theycanalsoworkoutthesurfacegravity，saysDunham，“YouwouldfeelalittlemorethantwiceasheavyasonEarthifyouwereonTrES­2.”There’sacatch，though.“Thetemperatureisabout1,500degreesCelsius(2,732degreesFahrenheit)，andthereisnothingsolidtostandon.Itisn’talikelyplacetolookforlife，”hesays.DunhamsaysthattofindsmallerplanetslikeEarthorVenus，scientistsneedtosendinstrumentsonamission(使命)tospace.NASAscientistsareplanningonecalledtheKeplerMission，whichcouldbeginintwoyears.TrES­2isinthepartoftheskythattheKeplerMissionwillstudy.Sinceastronomersalreadyknowsomuchaboutit，theycanuseittohelpmakesuretheirinstrumentsareworking.1．Asuitabletitleforthispassagewouldbe________.A．ATransitingPlanetB．ANewPlanetinSightC．TheKeplerMissionD．Astronomers’GreatAchievements2．Ifanastronomerwantstoknowaboutatransitingplanet，whatwillhehavetodo?A．Observeitcarefully.B．Workouttheresultsbydoingsomemathproblems.C．Findoutitsrelationshiptoitsstar.D．Alloftheabove.3．Whatdoestheunderlinedword“them”inParagraph3refertointhepassage?A．transitingplanetsB．researchersC．questionsD．telescopes4．Supposeyouwere56kilogramsontheearth.HowmuchwouldyouweighifyouwereonTrES­2?A．Lessthan28kilograms.B．28kilograms.C．56kilograms.D．115kilograms.Ⅴ.书面表达随着世界环境的日益恶化和人们环保意识的增强，越来越多的人选择低碳生活方式。低碳生活代表着更健康、更自然、更安全，同时也是一种低成本、低代价的生活方式。低碳(lowcarbon)，意指较低(更低)的温室气体(二氧化碳为主)排放，就是低能量，低消耗的生活方式。请简要谈谈你对低碳生活含义的理解，并结合自己的实际(如生活、工作和学习等)说明我们应怎样才能做到低碳生活。_________________________________________________________________________________________________________