2024-2025学年新教材高中英语课时作业18Unit4SpaceExplorationDiscoveringUsefulStructures习题含解析新人教版必修第三册

Unit4SpaceExplorationⅠ.阅读理解ChinasuccessfullylaunchedspacelabTiangong­2intospace,meaninganotherhistoricsteptowardsbuildingamannedspacestationaround2024.Measuring10.4metersinlength,thetube­likeTiangong­2isdesignedtoenabletwoastronautstoliveinspaceforupto30daysandtoreceivespaceships.OnceinsideTiangong­2,twoastronautsarrivingfromtheShenzhou­11spaceshipwillcarryoutkeyexperimentsrelatedtoin­orbitequipmentrepairs,aerospacemedicine,spacephysicsandbiology,suchasspaceclocksandsolarstormresearch.ThenumberofexperimentscarriedoutbyTiangong­2willbethehighestofanymannedspacemission(航天任务)sofar.ThesuccessfullaunchoftheTiangong­2,alongwiththefirstflightofChina'snewgenerationcarrierrocketLongMarch­7inJune,2024,bodes_well_forthefinalstageofChina'sthree­stepmannedspaceplan.Thefirststep,tosendanastronautintospaceandreturnsafely,wasfulfilledbyYangLiweiintheShenzhou­5missionin2003.Thesecondstepisdevelopingadvancedspaceflighttechnologies,includingthelaunchoftwospacelabs.Finally,thethirdstepwillbetooperateamannedspacestation.Oncethespacelabmissioncomestoanend,Chinawillstartbuildingourownspacestation,whichisplannedforcompletionbyaround2024.TheChinesespacestationwillbemuchsmallerthanthecurrentInternationalSpaceStation(ISS),butitcanbeexpandedforscientificresearchandinternationalcooperation.WiththeISSsettoretirein2024,theChinesestationwillofferapromisingchoice,andChinawillbetheonlycountrywithapermanent(永久)spacestation.这是一篇新闻报道类阅读。文章主要讲了中国胜利将天宫二号空间试验室送入太空，这意味着中国朝着2024年左右建成载人空间站又迈出了历史性的一步。1．WhatdoweknowaboutTiangong­2?A．Itisabletoreceivespaceships.B．Itsenttwoastronautsintospace.C．ItwaslaunchedbyLongMarch­7.D．Itworksforinternationalresearch.答案：A解析：细微环节理解题。答案定位在其次段Measuring10.4metersinlength,thetube­likeTiangong­2isdesignedtoenabletwoastronautstoliveinspaceforupto30daysandtoreceivespaceships.可知天宫二号能够接收宇宙飞船，故选A。2．Whatdoestheunderlinedphrase“bodeswellfor”probablymean?A．Makesup. B．Turnsouttobe.C．Mainlyresultsfrom.D．Suggeststhesuccessof.答案：D解析：词义揣测题。画线短语所在的句子意思是天宫二号的胜利放射，以及中国新一代运载火箭长征七号的首次放射，胜利预示了中国载人航天三步走安排进入最终阶段。由此可知“bodeswellfor”意思是“很好地表明”，故选D。3．Whatisthebesttitleforthetext?A．OneStepClosertoTiangong­2 B．3StepsofChina'sSpacePlanC．China'sSpaceLabLaunched D．SpaceStation,China'sDream答案：C解析：标题推断题。第一段中ChinasuccessfullylaunchedspacelabTiangong­2intospace,meaninganotherhistoricsteptowardsbuildingamannedspacestationaround2024.是全文的主题句，结合全文内容，可知这篇文章主要讲了中国胜利将天宫二号空间试验室送入太空，这意味着中国朝着2024年左右建成载人空间站又迈出了历史性的一步。故选C。Ⅱ.七选五FivestepstobetterhandwritingSomekidslovehandwriting,butothershateitwhenit'stimetoputpentopaper.Maybetheyareworriedabouttheirhandwriting.Areyouoneofthem?__1__Herearefivestepsthatreallywork!GetagreatgraspTrythis—holdyourpencilatthetopandtrytowriteyourname.Prettyhard?Butwhenyouholdyourpencilthecorrectway,writingismucheasier.__2__Holditinplacewithyourthumb(拇指),andyourindexandmiddlefingers.LetthelinesbeyourguideLinedpaperisyourfriend!Thoselinescanhelpyoucreatelettersthatareoftherightsizeandproportion(比例).__3__Alsobesuretofillupthelinedspacecompletely.Thosecapitallettersshouldbefromthebottomlinetothetopone.SlowdownIfyourwritingishardtoread,tryslowingdownalittle.Ifyourush,it'shardtocontrolwhereyoustopandstartyourletters.Lowerthepressure(压力)__4__Thatmakesithardertomakethesmoothlines.Tryrelaxinganddon'tholdthepenciltoohard.__5__Lotsofgamesneedyoutowriteordrawpictures.Soeventhoughit'snotschoolwork,you'restillusingtheskillsyouneedtocontrolyourpencilbetter.A．PlaygamesB．AskforadviceC．You'vebeenwritingsinceyouwerealittlekid.D．So“a”shouldbehalftheheightofacapital“A”．E．Somekidspressdownreallyhardwhentheywrite.F．Thebestwaytoholdapencilistorestitnexttothebaseofyourthumb.G．Thegoodnewsisthatjustabouteveryonecanimprovetheirhandwriting.这是一篇说明文。短文介绍了提高书写质量的五个步骤。1．G解析：由“Maybetheyareworriedabouttheirhandwriting.Areyouoneofthem?__1__Herearefivestepsthatreallywork！”可知，或许他们担忧自己的书写。你是他们中的一员吗？这里有五个真的很有用的步骤。所以小题1要起到承上启下的作用。故G选项“好消息是，几乎每个人都可以提高他们的书写”切题。故选G项。2．F解析：由“Holditinplacewithyourthumb(拇指),andyourindexandmiddlefingers.”可知，用拇指、食指和中指将其固定到位。所以小题2与后一句一同来说明如何正确地拿笔。故F选项“拿铅笔最好的方法是让它靠在拇指上”切题。故选F项。3．D解析：由“Thoselinescanhelpyoucreatelettersthatareoftherightsizeandproportion(比例)”可知，这些线条可以帮助写出大小和比例合适的字母。所以小题3要举例说明这些线在书写时的作用。故D选项“所以‘a’应当是大写字母‘A’的一半高”切题。故选D项。4．E解析：由“Thatmakesithardertomakethesmoothlines”可知，这样就很难写出平滑的线条。所以小题4要说明哪种状况导致很难写出平滑的线条。故E选项“有些孩子写字的时候很用力”切题。故选E项。5．A解析：由“Lotsofgamesneedyoutowriteordrawpictures.Soeventhoughit'snotschoolwork,you'restillusingtheskillsyouneedtocontrolyourpencilbetter”可知，很多嬉戏都须要你去写或者画画。所以即使这不是作业，你仍旧在运用你须要的技能来更好地限制你的铅笔。所以本段主要在说明玩嬉戏也可以帮助你提高书写质量，也就是小题5本段的标题所要说明的内容。故A选项“玩嬉戏”切题。故选A项。Ⅲ.语法填空Nowadays,millions__1__lonelysinglesarenowgoingonlineinstead.TheWorldWideWebisquicklybecoming__2__world'smostpopularmatchmaker(媒人)．Singlesareflocking(涌向)totheInternet__3__(main)becausetheirbusylifestylesleavethemlittletimetolookforasignificantother.Usingdatingsites(约会网址)isquickandconvenient.Manysinglessaytheregulardatingscene__4__(justlead)themfromonebadexperienceto__5__andarereadytotrysomethingelse.Datingsitesalsomake__6__easytoavoidsomeone__7__youarenotinterestedin.Intherealworld,__8__，ignoringsomeoneyoudon'tlikecanbedifficult.Despitealltheadvantages,onlinedatingalsopresentsitsownsetofproblems.Peoplearen'talwaysthosewhotheydeclaretobeintheironline__9__(describe).Safetyisanotherconcern.Youarejust__10__(like)tofindacriminalonlineasyourMrorMissRight.本文为记叙文。文章主要介绍了网络交友方面的问题，并提出了平安方面的建议。1．of解析：考查介词。句意：现在，数以百万计的孤独的人在上网。millionsof“数以百万的，成千上万的”是固定用法，表示概数，故填of。2．the解析：考查冠词。句意：网络正在快速成为世界上最受欢迎的媒人。最高级前应加定冠词the，故填the。3．mainly解析