2024-2025学年高中英语课时作业9Unit3Computers含解析新人教版必修2

PAGE课时作业9Ⅰ.Fast­readingReadthetextquicklyandanswerthefollowingquestions.1．Whoisthespeakerofthepassage?_______________________________________________________2．Findoutthetopicsentenceofeachparagraph.Para.1：________________________________________________Para.2：_________________________________________________Para.3：________________________________________________3．Whatisthegeneralideaofthetext?Thepassagemainlytalksabout________ofthecomputer,from________to________and________andhow________indifferentfields.答案1．Thecomputer.2．OvertimeIhavebeenchangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundforme.3．thedevelopment;acalculatingmachine;aPC;alaptop;itisusedⅡ.Careful­readingReadthetextcarefullyandchoosethebestanswer.1．Whatdoestheauthormeanby“atechnologicalrevolution”inthedevelopmentofcomputers?A．Acalculatingmachinein1642.B．Ananalyticalmachinein1822.C．Auniversalmachinein1936.D．Anetworkintheearly1960s.2．Howlongdidittakebeforethecomputerwasbuiltasananalyticalmachine?A．500years. B．300years.C．100years. D．200years.3．Whydidthecomputertotallychangeitsshape?A．Becausethecomputercoulddomanythings.B．Becausethecomputercouldsimplifysums.C．Becauseitsmemoryimproved.D．Becausethecomputerneverforgotanything.4．Whenwerethecomputersconnectedtooneanother?A．Intheearly1960s. B．Inthe1970s.C．Inthe1940s. D．Intheyearof1936.5．Accordingtothelastparagraph,whichwereNOTmentionedintheuseofthecomputer?A．Mobilephones. B．Rockets.C．Bikes. D．Robots.6．Whatcanwelearnfromthetext?A．Thecomputerwilltaketheplaceofhumanbeings.B．Thecomputerwillbesmarterthanhumanbeings.C．Thecomputerwillbeadisasterforhumanbeings.D．Thecomputerwillbeusedinmanyfieldsinlife.答案1．B2.D3.C4.A5.C6.DⅢ.SummaryNoonecouldrecognizemeafterIgotmynewtransistorsin__1__1960s.Thereweretimeswhenmysizewas__2__(total)changed.IbecamesmallerandthinnerbutIgotclevererandcleverer,quickerandquicker.Andmymemorybecamesolarge__3__Icouldn'tbelieveit!ButIwasalwayssolonely__4__(stand)therebymyself.Theygavemeafamily__5__(connect)byanetworkintheearly1960s.Icouldshareinformationwith__6__andwecouldtalktoeachother.AtaboutthesametimewelearnedtotalktohumansusingBASIC.I__7__(bring)intopeople'shomesinthe1970s.Sincethen,myfamilyandI__8__(use)bybillionsofpeopletodealwithinformationandcommunicatewitheachotheraroundtheworld.Ilovebeingusedtoconnectpeoplewhoaren'tcloseenough__9__(speak)toeachother.Ihave__10__(true)beenbuilttoservethehumanracesincemybirth.答案1．the2.totally3.that4.standing5.connected6．others7.wasbrought8.havebeenused9.tospeak10．truly阅读理解ATheInternetplaysabigpartinhumanlife.Weuseitforworkandpleasure.Weuseittolearnanewlanguage.Wefindadviceonit.Weuseittoconnectwithfamilyandfriends.Weuseittostayintouchwitheventswecareabout.Thelistgoesonandon.Well,that_train_has_left_the_station.ButcanusingtheInternettoomuchbebadforourhealth?Itmightbe,researcherssay.AnewstudyfindsthatheavyInternetusemaybeconnectedtohighbloodpressure(血压)inanunlikelygroup:teenagers.Highbloodpressuremakesyourheartandbloodvessels(血管)worktoohard.Overtime,thisextrapressureincreasesyourriskofaheartattack.Highbloodpressurecanalsocauseheartandkidney(肾脏)disease.Itisalsocloselylinkedtoabraindisease.TheHenryFordHospitalinDetroit,TheleadresearcherisAndreaCassidy­Bushrow.Shesaid,“UsingtheInternetispartofourdailylife,butitshouldn'truinus.”MsCassidy­Bushrowaddsthatitisimportantforteenstotakeregularbreaksfromtheircomputersorsmartphonesanddosomekindofphysicalactivity.Shealsosuggeststhatparentslimit(限制)theirchildren'suseoftheInternettotwohoursaday,fivedaysaweek.1．Theunderlinedexpression“thattrainhasleftthestation”inPara.2isusedtoshow________.A．theInternetdevelopsrapidlyB．noonecanescapefromtheInternetC．theInternetcanprovidewhateverwewantD．thereisnogoingbacktoanInternet­freelife2．WhatisPara.3mainlyabout?A．Causesofhighbloodpressure.B．Theharmofhighbloodpressure.C．ThedisadvantagesofInternetuse.D．Waystopreventhighbloodpressure.3．AndreaCassidy­Bushrowwouldagreethat________.A．teenagersshouldn'tusetheInternetB．theInternetwillruinhumanlifeinthefutureC．smartphonesaremoreharmfulthancomputersD．regularbreaksarenecessarywhenusingtheInternet4．Whatcanbeusedasthebesttitleofthepassage?A．HeavyInternetUsersAreMostlyTeenagersB．HowtoPreventTeenagersfromtheInternetC．TooMuchInternetUseMayBeBadforTeenagersD．EveryCoinHasTwoSides—SoDoestheInternet答案与解析本文是一篇说明文。一项探讨发觉，青少年过度运用因特网可能会导致高血压。1．D句意理解题。文章首句讲到现在因特网对于人类生活来说至关重要，接着列举了我们日常生活中用到因特网的方方面面。在其次段作者引用了这句thattrainhasleftthestation，紧跟着又提出疑问：过度运用因特网会不会影响我们的健康？由此可知这句话在此处所要表达的意思就是：我们不能返回到没有因特网的生活了。2．B段落大意题。依据文章第三段的内容可知，本段讲的是高血压的种种危害。3．D推理推断题。依据文章最终一段中的MsCassidy­Bushorwaddsthatitisimportantforteenstotakeregularbreaksfromtheircomputersorsmartphones...可知，AndreaCassidy­Bushrow认为上网时隔一段时间就休息一下是很有必要的。4．C标题归纳题。文章主要讲的是一项探讨发觉青少年过度运用因特网可能会导致高血压，由此可知C项作为文章标题最佳。BChoosingahotel,restaurantornewproductcanbeahardtask.There'ssomuchonoffer,andmakingamistakecanbeexpensive.Thisiswhymanypeopleturntoonlineuserreviews—opinionsandinformationthat'ssupposedlywrittenbypeoplewhohaveusedaserviceorboughtaproduct.Butcanwetrustthem?About70%ofAmericanssaytheybelieveonlineuserreviews.Accordingtoexperts,thisisbecausewhenwereadareviewbyanotherperson,wefeellikewe'regettingapersonalrecommendation(举荐)fromafriend.Butarecentstudyshowsthataboutonethirdofonlinereviewsarenottrue.Ofcourse,companiesareinneedofgoodreviewssosomeofthemhavestartedto“play”thesystem.Buthowdotheydoit?Simple!Onewayistogivegoodreviewsofyourownproductorservice.Best­sellingwriterRJEllorywasrecentlycaughtwriting5­starreviewsofhisownbooksonAmazon.Hecalledoneofhisbooksa“modernmasterpiece”andsaidanotherwould“touchpeople'ssouls(心灵)”.RJalsowroteunkindreviewsofhiscompetitors'books.Anotherwayisto“buy”goodreviews.Justrecently,theCoveHotelinCornwallwascaughtgivingguestsdiscounts(折扣)iftheywrote“honestbutpositive”reviewsonTripAdvisor.Theideaworked—oneguestcalledtheCove“adreamcametrue”andanothersimplywrote,“Ididn'twanttoleave！”Somepeopleareevenmakingalivingbywritinguntruereviews.In2010,AmericanToddRutherfordcreatedGettingBookReviews(ithassincecloseddown).For$99,ToddwouldwriteapositivereviewofyourbookonAmazon;andfor$999,he'dwrite50.Atonepoint,Toddwasmakingmorethan$28,000permonth;andoneofhisclients(客户)(JohnLocke)becameabest­sellingauthorbecauseofTodd'sreviews.So,justbecarefulwhenyouarelookingforreviewsofthethingsyouneedontheInternet.5．WhichofthefollowingwordscanbestdescribeRJEllory?A．Proud. B．Friendly.C．Impolite. D．Dishonest.6．WhatdoweknowabouttheCoveHotel?A．ItisthemostpopularhotelonTripAdvisor.B．Itisclosetothecitycenterbuthaspoorserv