1、课时作业(十三)Unit 3Part Topic Talk.阅读理解AWhenIwasinthethirdgrade, wehadahuntatschool.Wegatheredupchalk，pencils，stones, andsoon, rapidlyfillingourchecklists.Itwasaverycloserace.IwasoutofbreathwhenIreachedtheclover (三叶草) patchinsearchofthelast, mosthardtofinditem: afourleafclover.IwasprettysurethatIwasgoing
2、towin.Ihavealwaysbeenabletofindfourleafclovers.Ijustsawthem.Ispentmychildhoodcollectingandpressingfourleafcloversintobooksatmymothershouse.Istartedwithbigclothandleatherboundbooks.WhenIranoutofromanticallyboundvolumes, IbegantoputmytreasuresintoanythingIcouldfind: fictionpaperbacksandcookbooks.Thesa
3、meistrueinmyhousetoday.Shakeabook, andapaperytreasurejustmightfallintoyourhand.Afewyearsago, inNovaScotia, myhusbandandIpulledofftheroadforapicnic.Thegroundwasthickwithclover.Someshootshadfour, five, evensixleaves.Ilinedthemuponthepicnictabletoadmireasmyhusband, neveryethavingfoundonefourleafclover,
4、 lookedoninawe.Tome, itwassimple.Thedifferencesintheirshapespoppedout, breakingtheprettypatternoftheconventionalcloverwiththeirthreeperfectleaves.Twosummersback, whilewaitingforanairportshuttleinMunich, Ifoundatinyfourleafcloverinatrafficcircleandputitintomypassport.Onthewayhome, myhusbandandIwereup
5、gradedtobusinessclass.Friendsattributedourgoodlucktotheclover.Ithink, itsmorelikelythatwewereupgradedbecauseakindcustomerserviceofficertookpityonus.Peopledisagreeaboutwhethertheluckliesinthefindingorinthepossessionofafourleafclover.Somebelievethattheluckislostifthefourleafcloverisevenshowntosomebody
6、else, whileothersthinktheluckdoublesifitisgivenaway.Ibelievethatpositivityisincreasedbysharing.Ifeelluckytofindthecloverssooften, butIdontthinktheyinfluencemylifeanymorethanitdoestoshareanythingalittlespecialthatmomentaryclosenessbetweenyouandafriendorastranger, asyouallleanintowonderatararefind.1Wh
7、ycantheauthornoticefourleafcloverssoeasily?AShealwayshasgoodluck.BShehasaspecialgiftforplants.CShepracticedalotinherchildhood.DShecantellthepatterndifferences.2Howdoestheauthordealwithherfourleafclovers?ASheoftengivesthemaway.BSheleavesthemeverywhere.CShetreatsthemwithspeciallove.DSheadmiresthemwith
8、herhusband.3Howdoestheauthorunderstandluckandclovers?ATheclosenessbroughtbycloversreallycounts.BCloverswillinfluenceonesgoodluckalot.CGoodluckmeansfindingorowningaclover.DGoodluckmaydoubleifyougivecloversaway.4Whatmaybethebesttitleforthepassage?AHuntingCloversBSharingCloversCNotJustforLuckDJustforLu
9、ckBAdragonflybarelyaninchandahalflongappearstobetheanimalworldsmostproductivelongdistancetravelerflyingthousandsofmilesoveroceansasitmigratesfromcontinenttocontinentaccordingtoanewlypublishedresearch.Biologistswholedthestudysaytheevidenceisinthegenes.Theyfoundthatpopulationsofthisdragonfly, calledPa
10、ntalaflavescens, inTexas, easternCanada, Japan, Korea, India, andSouthAmerica, havegenessosimilarthatthereisonlyonelikelyexplanation.Apparentlysomehowtheseinsectsaretravelingdistancesthatareextraordinarilylongfortheirsmallsize, breeding (繁殖) witheachother, andcreatingacommonworldwidegenepool.Buthowd
11、oinsectsfromdifferentcontinentsmanagetomeetandhookup? Waresaysitappearstobethewaytheirbodieshaveevolved.“Thesedragonflieshaveadaptationssuchasincreasedsurfaceareasontheirwingsthatenablethemtousethewindtocarrythem.”Dragonflies, infact, havealreadybeenobservedcrossingtheIndianOceanfromAsiatoAfrica.“Th
12、eyarefollowingtheweather，”saysDanielTroast, whoanalyzedtheDNAsamplesinWareslab.“TheyregoingfromIndiawhereitsthedryseasontoAfricawhereitsthewetseason, andapparentlytheydoitonceayear.”WetnessisamustforPantalatoreproduce, andthat, saysWare, iswhytheseinsectswouldbedriventoevenattemptsuchadangeroustrip,
13、 whichshecallsa“kindofsuicide.”Thespeciesdependsonit.Whilemanywilldieontheroute, aslongasenoughmakeit, thespeciessurvives.Forthemoment, thedetailsofthisextraordinaryinsecttravelareabesteducatedguess.Muchmoreworkisneededtobringmanylooseendstogether.WareandTroasthopethatscientistscanworkonplottingthos
14、eroutes.5WhatprovesPantalaflavescensaretheworldslongestdistanceflyers?AScientistshavetrackedthedragonflyacrosstheworld.BTherearemanyPantalaflavescensinvariouscontinents.CThesamedragonflywasfoundbothinAsiaandAmerica.DPantalaflavescensindifferentcontinentshavesimilargenes.6WhathelpsPantalaflavescensfl
15、yoversolongdistance?ATheirspecialbodyshape.BTheirabilitytousewind.CTheirsmallandlightbodys.DTheirlargeandstrongwings.7WhatisnecessaryforPantalaflavescenstoreproduce?ADampweather.BEnoughsunshine.CDryenvironment.DWarmnests.8Whatdoestheunderlinedword“it”inParagraph5referto?ATheweather.BTheinsect.CThewi
16、nd.DThetrip.七选五TheAmericanbookWhoMovedMyCheesehasbeenabestsellerallovertheworld.Ittellsastorywhichhappenedbetweenmiceandpeople._1_Thebooktellsusthatwhenfacingchangesinourlives, likeanewschoolornewfriends, dontbeafraid._2_Thebookgivesanexampleofachangeatschool.Aschoolischangingfromhavingtwotermstothr
17、eetermsbecausetherearetoomanystudents.Severalteenagersaretalkingaboutthis.Mostofthemareunhappyandworried.ButChrislaughsandtellsastoryabouttwomice, two“littlepeople”andsomecheese.Thefourareinamaze (迷宫) lookingforthecheese.Here, cheesemeanssomethingimportantinlife, likemovingtoanewclassorgettingintoco
18、llege._3_Themicerealizethattheycantchangewhathashappenedandhavetofindmorecheese.Thismeansfindingdifferentdreams.Thelittlepeople, however, cantdothis._4_AfterChrisfinishesthestory, hisfriendsunderstandonething: _5_Hisfriendsunderstandhowthiscanbeusedinthechangesallteenagersface, suchasdoingwellatscho
19、olorhavinggoodrelationshipsorjustfeelinggoodaboutyourself.AIboughtonelastweekandfounditveryinteresting.BInstead, usethesechangestomakeabetterlife.CHowever, somestrangethingshappenedinaschool.DItsauthorSpencerJohnsonhaswrittenthebookjustforteenagers.ETogetmorecheese, moveinanewdirectionquickly.FButth
20、eyfindthecheeseisgone.GTheyareafraidofchangessotheyfindnocheese.课时作业(十三).阅读理解A【语篇解读】文章属于记叙文。作者从小到大一直喜欢收集四叶草，并能够比别人更容易地找出四叶草。有些人认为，如果四叶草被展示给别人看，运气就会丧失；而另一些人则认为，如果将四叶草送给别人，运气就会加倍。作者相信分享会增加积极性，找到四叶草并和别人分享的那种亲密感才是重要的。1答案与解析：D细节理解题。由第四段中Tome, itwassimple.Thedifferencesintheirshapespoppedout, breakingthep
21、rettypatternoftheconventionalcloverwiththeirthreeperfectleaves.可知，它们形状的差异会突显出来，打破了传统三叶草美丽的形状。所以作者能辨别三叶草和四叶草的形状的区别。2答案与解析：C推理判断题。由第三段可以看出作者非常乐于收集四叶草；第五段中介绍了作者在机场看见一片小的四叶草也会夹在护照里；在作者眼中，四叶草是她的“treasure”并乐于向丈夫、朋友分享。由此可以判断出作者对四叶草有着特别的爱。3答案与解析：A细节理解题。由最后一段中Idontthinktheyinfluencemylifeanymorethanitdoestos
22、hareanythingalittlespecialthatmomentaryclosenessbetweenyouandafriendorastranger, asyouallleanintowonderatararefind.判断出作者认为四叶草带来的亲密感才是重要的。4答案与解析：C主旨大意题。作者通过自己的经历，旨在表达并不只是四叶草能带来幸运，找到四叶草并和别人分享的那种亲密才是最重要的。故C选项“不只是运气”为短文的最佳标题。B【语篇解读】文章属于说明文，介绍了一种长途飞行的蜻蜓Pantalaflavescens。这种蜻蜓冒险长途飞行的原因是它的繁殖需要湿润的气候。5答案与解析：D
23、推理判断题。根据第二段内容可知，领导这项研究的生物学家说基因就是证据。Pantalaflavescens蜻蜓在不同的洲有可能留有后代，才会有相似的基因。反过来，在不同的洲有共同的基因，证明了它们曾飞到过那儿，也就证明了这种蜻蜓是长途飞行者。6答案与解析：B推理判断题。根据第三段中的Thesedragonflieshaveadaptationssuchasincreasedsurfaceareasontheirwingsthatenablethemtousethewindtocarrythem.可知这些蜻蜓适应性强，比如翅膀上表面积的增加，使它们能够利用风来飞行。故B项(运用风飞行的能力)正确。
24、7答案与解析：A细节理解题。根据第五段首句中的WetnessisamustforPantalatoreproduce可知这种蜻蜓的繁殖必须要湿润的气候。8答案与解析：D推理判断题。根据第五段内容可知，对于这种昆虫来说，这种危险的旅行是自杀式行为。虽然许多昆虫会死在途中，但这种物种依靠这种旅行生存下来。从后面一句Whilemanywilldieontheroute, aslongasenoughmakeit, thespeciessurvives.可知，it指的是上文的危险旅行。.七选五【语篇解读】文章属于说明文。介绍了一本美国畅销书谁动了我的奶酪。1答案与解析：D前文提到“谁动了我的奶酪讲述了
25、一个发生在老鼠和人之间的故事。”是该书的内容简介，D选项“该书的作者斯宾塞约翰逊专为青少年写了这本书。”为作者的介绍，与前文对应。故选D项。2答案与解析：B前文提到“这本书告诉我们，当我们面对生活中的变化时，比如新学校或新朋友，不要害怕”，B项“相反，利用这些变化来创造更好的生活。”与前文的内容衔接自然，“changes”与前文呼应。故选B项。3答案与解析：F前文提到“在这里，奶酪意味着生活中重要的事情，比如搬到一个新的班级或进入大学。”指生活中出现了新变化，奶酪自然就不见了，后文又提到“必须找到更多的奶酪”。F项“但是他们发现奶酪不见了。”承上启下。故选F项。4答案与解析：G上句提到“小矮人做不到这个”，G项“他们害怕变化，所以找不到奶酪。”解释前句小矮人找不到奶酪的原因。故选G项。5答案与解析：E根据设空处前文可知，此处总结文章主旨，结合全文的启示，在生活中遇到变化时，我们需要快速融入环境。E项“为了得到更多的奶酪，快速地朝新的方向前进。”与文章的主旨相对应。故选E项。