2021届高考英语大一轮复习课时作业7Unit4Cyberspace含解析北师大版

课时作业7Ⅰ.阅读理解AReturns&RefundGuaranteeThe“Returns&RefundGuarantee”isapromiseprovidedbysellersforeveryitemtheysellonDH.Whenyoureceiveanitemthatwasboughtandpaidforonoursite,andyoufinditisnotasdescribedorisoflowquality,youcancontactthesellertoresolvetheseproblems.DHgatewillofferadditionalassistanceifthesellerisnotcooperative.ScopeThefollowingpointsshouldnotbeincludedinthe“Returns&RefundGuarantee”：▲Thesellerdidn'tmakeanypromise.▲Thesellercanprovideevidencetoprovetheitemsareasdescribed.▲Youdidn'tcontactthesellerwithinthepromisedtime.▲YouhavereleasedthepaymenttothesellerbeforeaskingDHgateforhelp.Sellersareabletosetupthefollowingpromises：ReturningitemsforanyreasonBuyerscanreturnitemsforarefundwithinaspecificdatewhichhasbeensetupbysellers,suchas3days,and7daysfromthedaywhentheitemsarereceived.Theitems'receivingdateisthedatethatisindicatedontheshippingcarrier'sofficialwebsite.Buyersshouldprepayanyreturnshippingcost,whichwillbegivenbacktothebuyersafterthesellerreceivestheitemsaslongastheitemsarereturnedinthesameexactconditionaswhentheyweredelivered.ReturnsorRefundsacceptediftheproducthasqualityissuesBuyerscanreturntheitemsforarefundwhentheyarenotasdescribedorpossessqualityissuesbycommunicatingdirectlywiththeseller.Thesellerisresponsibleforthereturnshippingcost.Buyerscangetarefundandkeeptheitemswhentheitemsarenotasdescribedorpossessqualityissuesbynegotiatingdirectlywithsellers.本文是应用文。文章介绍了国内DHgate网上交易平台的退货退款保证制度。1．WhocangetadditionalassistancefromDHgateintheguarantee?A．Thebuyersinphysicalstores.B．ThebuyersonDH.C．ThesellersonDH.D．Boththebuyersandthesellers.答案：B解析：细节理解题。根据题干中的关键词“additionalassistance”定位到第一段尾句。依据此句可知，如果卖方不合作，DHgate将提供额外的协助。故选B。2．Whichsituationiswithinthescopeoftheguarantee?A．Thesellerdidn'tmakeanypromise.B．Thebuyerhaspaidthesellerinadvance.C．Thebuyeraskedforhelpwithinthepromisedtime.D．Thesellerprovesthatthereisnothingwrongwiththeitem.答案：C解析：细节理解题。依据Scope部分中的“Youdidn'tcontactthesellerwithinthepromisedtime”可知，与此情况相反时是在保证范围内的，即买家在承诺期限内求助是可以享受保证服务的，故选C。3．Whichofthefollowingistrueaccordingtothepassage?A．Notallthesellersmakepromises.B．DHgatesometimeswillpaythebuyers.C．Sellersshouldprepayreturnshippingcost.D．Thebuyercan'tkeeptheitemsaftergettingarefund.答案：A解析：推理判断题。根据Scope部分中的第一条“Thesellerdidn'tmakeanypromise”可知，卖方没有做出承诺时不包括在退货退款保证范围内，据此可推知，不是所有卖方都做出承诺，故选A。BBeing“young”isassociatedwithallthegoodthingsinlife—beauty,hope,andenergy.Butyouthalsohasnegativeassociations—impulsiveness,troublemarking,andirresponsibility.Thisnegativesideseemstobewhatsocietyfocusesonmore,whichiswhyyoungpeoplehavemostlybeenconsideredasidleanddifficult.ButwhenitcomestoGenerationZ—thosebornbetween1995and2010—this_stereotypedoesn'tseemtoapplyanymore.InJapan,forexample,GenZersarelesslikelytobuyonimpulse,buttakeintoconsiderationmoreaproduct'struevalue.“They'relookingatthecompanies,notjusttheproducts，”MasahikoUotani,CEOofJapanesecosmeticscompanyShiseido,toldBloomberg.“They'reasking,‘Aretheyreallydeliveringvaluetothesociety?Aretheypromotingdiversityandinclusiveness？’”GenZersarealsomoregroundedthanwe'veexpectedthemtobe.AccordingtoarecentsurveybyBankofAmerica,morethanhalfofyoungadultsagedbetween18and23saidtheywereplanningtobuyahousewithinfiveyears.Andthey'renotjustsayingit—theyarewillingtomakesacrificesforit,includinggettingasecondjobandsavingmoneyforadownpaymentinsteadofspendingitonavacation.“Despitetheiryoungage,thisgroupispragmaticandactivelyplanningfortheirfuture，”D．SteveBoland,headofConsumerLendingatBankofAmerica,toldUSAToday.“Theyhaveaclearvisionofhowtheyarewillingtohelpthemselvesinordertomakeithappen.”SocialissuesarealsoatthecenterofconcernofGenZers,whotakethemselvesasachangingforceoftheworld.InIndia,forexample,youngpeoplewhohavejustreachedthevotingageareeagertovoteforanewleaderwhoiscapableofsolvingproblemsthatmatterthemosttothem,includingpollution,unemploymentandwomen'ssafety.AsaGenZeryourself,whatisyourplanforthefuture?本文是一篇说明文。Z一代是指在1995年和2010年之间出生的人，这一代人在消费方面比较理智。他们比我们想象中更理性、务实，他们对未来有清晰的设想，这颠覆了人们对年轻人的传统看法。4．Whatdotheunderlinedwords“thisstereotype”inparagraph2referto?A．Beingyoungisgood.B．GenZersarebornafter1995.C．Thetraditionalpoorimpressionsontheyouth.D．Theassociationswithyoungpeople.答案：C解析：指代关系题。根据第一段第二、三句可知，社会更关注与年轻人相关的负面情况，通常，年轻人被认为是懒散的和难相处的。结合画线部分所在句可知，此处表述这种刻板印象不再适用于Z一代。故画线部分指的是上文提到的人们对年轻人的传统的、糟糕的印象，故选C。5．Wecaninferfromthethirdparagraphthat________.A．GenZersinJapanarepickyB．GenZersareself­centeredC．GenZerscarelittleaboutproductsD．GenZersarewisewhenshopping答案：D解析：推理判断题。根据第三段的内容，尤其是“GenZersarelesslikelytobuyonimpulse...They'relookingatthecompanies,notjusttheproducts”可知，Z一代不太可能冲动购物，他们会更多地考虑产品的真正价值，由此可推知，Z一代在购物时是明智的，故正确答案为D。6．What'sD．SteveBoland'sattitudetotheGenZers?A．Approving. B．Negative.C．Indifferent. D．Critical.答案：A解析：推理判断题。根据题干中的关键词D.SteveBoland定位到文章第五段，根据该段内容可知，D.SteveBoland认为尽管Z一代很年轻，但这代人务实且积极地规划他们的未来，他们有清晰的设想并愿意努力去实现它；由此可推知，D.SteveBoland对于Z一代是持赞同的态度的，故正确答案为A。7．WhichofthefollowingwordsmaybestdescribetheGenZers?A．Confidentandindependent.B．Visionaryandresponsible.C．Persistentanddown­to­earth.D．Activeandcreative.答案：B解析：推理判断题。根据文章倒数第三段可知，Z一代会积极规划他们的未来并努力实现自己的设想，由此可知，他们是有远见的；又根据倒数第二段的内容，尤其是第一句“Socialissuesarealso...oftheworld”可知，社会问题也是Z一代关注的中心，并且他们认为自己是改变世界的力量，由此可推知Z一代是有责任感的。故正确答案为B。Ⅱ.完形填空Treeshavealwaysheldmuchattractionforpeople.Theyarethe__1__andbiggestlifeformonourplanetandoneofthemostbeautiful.Asadirect__2__withthousandsofyearsofhistory,treesappearinmanyreligionsandhave__3__artistsovertheyears.WhenIwasachildI__4__asciencefictionstorythatmademethinkabouttreesinanewway.Inthestory,__5__fromanadvancedcivilizationcometoourplanetandtheirspaceship__6__inthemiddleofaforest.Thealiens(外星人)havealong__7__withthetreesoftheforestandthenleave,__8__tothinkthattheinhabitants(居民)ofEartharenoble,intelligentandpeaceful.Trees__9__alotaboutbeingpartofacommunityandhowcooperationisbetterforasocietythan__10__.Scientistsareonlyjustbeginningtounderstandhowitall__11__，butwenowknowthattreesgrowingtogethersharealloftheavailableresourceswitheachother.So,strongtreesinagood__12__willsharefoodandwaterwith__13__treesthatreceivelesssunlight.By__14__，acommunityoftreesmakesitselfstronger.The__15__ofgiantredwoodtrees,forexample,growtogetherundertheground.It'sasiftheyare__16__hands.Thismeansthattheyare__17__strongerwhenthereareheavywindsorfloods.Weallacknowledgethattreesare__18__fortheenvironmentandthesurvivalofour__19__.Perhapstheyhaveevenmoreto__20__usinthefuture.树木总是能吸引人们的关注，它们古老又美丽，是艺术家们的灵感来源；树木之间的团结协作使它们更强大。此处，树木对环境和地球的生存都极其重要。1．A.kindest B．oldestC．heaviest D．fittest答案：B解析：根据第2空后的“thousandsofyearsofhistory”可知，树木是地球上最古老的生命形式。故选B。2．A.link B．leagueC．culture D．agreement答案：A解析：根据第3空前的“treesappearinmanyreligions”并结合语境可推知，树木作为一个直接的纽带出现在许多宗教里，故选A。3．A.governed B．sponsoredC．inspired D．tricked答案：C解析：根据语境可知，树木也赋予艺术家们灵感。C项意为“赋予灵感”，故选C。A项意为“统治”；B项意为“赞助”；D项意为“欺骗”。4．A.tookin B．cameacrossC．setaside D．keptup答案：B解析：根据空后的“asciencefictionstory”可知，“我”小时候偶然读到一篇科幻故事。B项意为“偶然发现”，故选B。A项意为“吸入，理解”；C项意为“留出”。5．A.workers B．researchersC．visitors D．invaders答案：C解析：根据下文中的“anadvancedcivilization”“theirspaceship”以及“Thealiens(外星人)”可知，这里表示的是来自先进文明的访客(visitors)。invader“侵略者”。6．A.lands B．dropsC．flies D．shoots答案：A解析：根据上题的解析以及空后的“inthemiddleofaforest”可知，外来的飞船降落(lands)在森林中间。7．A.translation B．wordC．cooperation D．conversation答案：D解析：根据第8空后的“think”并结合语境可推知，外星人之所以有这样的认识，是因为他们与森林里的树木进行了一次长谈。故选D。8．A.curious B．happyC．desperate D．grateful答案：B解析：根据下文中的“noble,intelligentandpeaceful”可以推测出那些外星人在离开时，应该是开心的。故选B。C项意为“绝望的”。9．A.get B．knowC．afford D．send答案：B解析：根据第11空后的“treesgrowingtogethersharealloftheavailablerescources”可知，树木在成长的过程中，会分享所有可以得到的资源。由此可以推测出，树木知道(know)自己是整个群体的一部分，并知道合作如何比竞争(competition)对一个群体更好。10．A.regulation B．managementC．competition D．construction答案：C解析：参见上题解析。11．A.learns B．endsC．grows D．works答案：D解析：根据语境可知，这里表示科学家才刚刚开始去了解树木之间的互相合作是怎样运作的。12．A.position B．mannerC．rank