課時作業(yè)(十三)Unit3PartⅠTopicTalkⅠ.閱讀理解AWhenIwasinthethirdgrade,wehadahuntatschool.Wegatheredupchalk，pencils，stones,andsoon,rapidlyfillingourchecklists.Itwasaverycloserace.IwasoutofbreathwhenIreachedtheclover(三葉草)patchinsearchofthelast,mosthard-to-finditem:afour-leafclover.IwasprettysurethatIwasgoingtowin.Ihavealwaysbeenabletofindfour-leafclovers.Ijustsawthem.Ispentmychildhoodcollectingandpressingfour-leafcloversintobooksatmymother'shouse.Istartedwithbigclothandleather-boundbooks.WhenIranoutofromanticallyboundvolumes,IbegantoputmytreasuresintoanythingIcouldfind:fictionpaperbacksandcookbooks.Thesameistrueinmyhousetoday.Shakeabook,andapaperytreasurejustmightfallintoyourhand.Afewyearsago,inNovaScotia,myhusbandandIpulledofftheroadforapicnic.Thegroundwasthickwithclover.Someshootshadfour,five,evensixleaves.Ilinedthemuponthepicnictabletoadmireasmyhusband,neveryethavingfoundonefour-leafclover,lookedoninawe.Tome,itwassimple.Thedifferencesintheirshapespoppedout,breakingtheprettypatternoftheconventionalcloverwiththeirthreeperfectleaves.Twosummersback,whilewaitingforanairportshuttleinMunich,Ifoundatinyfour-leafcloverinatrafficcircleandputitintomypassport.Onthewayhome,myhusbandandIwereupgradedtobusinessclass.Friendsattributedourgoodlucktotheclover.Ithink,it'smorelikelythatwewereupgradedbecauseakindcustomerserviceofficertookpityonus.Peopledisagreeaboutwhethertheluckliesinthefindingorinthepossessionofafour-leafclover.Somebelievethattheluckislostifthefour-leafcloverisevenshowntosomebodyelse,whileothersthinktheluckdoublesifitisgivenaway.Ibelievethatpositivityisincreasedbysharing.Ifeelluckytofindthecloverssooften,butIdon'tthinktheyinfluencemylifeanymorethanitdoestoshareanythingalittlespecial—thatmomentaryclosenessbetweenyouandafriendorastranger,asyouallleanintowonderatararefind.1．Whycantheauthornoticefour-leafcloverssoeasily?A．Shealwayshasgoodluck.B．Shehasaspecialgiftforplants.C．Shepracticedalotinherchildhood.D．Shecantellthepatterndifferences.2．Howdoestheauthordealwithherfour-leafclovers?A．Sheoftengivesthemaway.B．Sheleavesthemeverywhere.C．Shetreatsthemwithspeciallove.D．Sheadmiresthemwithherhusband.3．Howdoestheauthorunderstandluckandclovers?A．Theclosenessbroughtbycloversreallycounts.B．Cloverswillinfluenceone'sgoodluckalot.C．Goodluckmeansfindingorowningaclover.D．Goodluckmaydoubleifyougivecloversaway.4．Whatmaybethebesttitleforthepassage?A．HuntingCloversB．SharingCloversC．NotJustforLuckD．JustforLuckBAdragonflybarelyaninchandahalflongappearstobetheanimalworld'smostproductivelongdistancetraveler—flyingthousandsofmilesoveroceansasitmigratesfromcontinenttocontinent—accordingtoanewlypublishedresearch.Biologistswholedthestudysaytheevidenceisinthegenes.Theyfoundthatpopulationsofthisdragonfly,calledPantalaflavescens,inTexas,easternCanada,Japan,Korea,India,andSouthAmerica,havegenessosimilarthatthereisonlyonelikelyexplanation.Apparently—somehow—theseinsectsaretravelingdistancesthatareextraordinarilylongfortheirsmallsize,breeding(繁殖)witheachother,andcreatingacommonworldwidegenepool.Buthowdoinsectsfromdifferentcontinentsmanagetomeetandhookup?Waresaysitappearstobethewaytheirbodieshaveevolved.“Thesedragonflieshaveadaptationssuchasincreasedsurfaceareasontheirwingsthatenablethemtousethewindtocarrythem.”Dragonflies,infact,havealreadybeenobservedcrossingtheIndianOceanfromAsiatoAfrica.“Theyarefollowingtheweather，”saysDanielTroast,whoanalyzedtheDNAsamplesinWare'slab.“They'regoingfromIndiawhereit'sthedryseasontoAfricawhereit'sthewetseason,andapparentlytheydoitonceayear.”WetnessisamustforPantalatoreproduce,andthat,saysWare,iswhytheseinsectswouldbedriventoevenattemptsuchadangeroustrip,whichshecallsa“kindofsuicide.”Thespeciesdependsonit.Whilemanywilldieontheroute,aslongasenoughmakeit,thespeciessurvives.Forthemoment,thedetailsofthisextraordinaryinsecttravelareabesteducatedguess.Muchmoreworkisneededtobringmanylooseendstogether.WareandTroasthopethatscientistscanworkonplottingthoseroutes.5．WhatprovesPantalaflavescensaretheworld'slongest-distanceflyers?A．Scientistshavetrackedthedragonflyacrosstheworld.B．TherearemanyPantalaflavescensinvariouscontinents.C．ThesamedragonflywasfoundbothinAsiaandAmerica.D．Pantalaflavescensindifferentcontinentshavesimilargenes.6．WhathelpsPantalaflavescensflyoversolongdistance?A．Theirspecialbodyshape.B．Theirabilitytousewind.C．Theirsmallandlightbodys.D．Theirlargeandstrongwings.7．WhatisnecessaryforPantalaflavescenstoreproduce?A．Dampweather.B．Enoughsunshine.C．Dryenvironment.D．Warmnests.8．Whatdoestheunderlinedword“it”inParagraph5referto?A．Theweather.B．Theinsect.C．Thewind.D．Thetrip.Ⅱ.七選五TheAmericanbookWhoMovedMyCheesehasbeenabestsellerallovertheworld.Ittellsastorywhichhappenedbetweenmiceandpeople.__1__Thebooktellsusthatwhenfacingchangesinourlives,likeanewschoolornewfriends,don'tbeafraid.__2__Thebookgivesanexampleofachangeatschool.Aschoolischangingfromhavingtwotermstothreetermsbecausetherearetoomanystudents.Severalteenagersaretalkingaboutthis.Mostofthemareunhappyandworried.ButChrislaughsandtellsastoryabouttwomice,two“l(fā)ittlepeople”andsomecheese.Thefourareinamaze(迷宮)lookingforthecheese.Here,cheesemeanssomethingimportantinlife,likemovingtoanewclassorgettingintocollege.__3__Themicerealizethattheycan'tchangewhathashappenedandhavetofindmorecheese.Thismeansfindingdifferentdreams.Thelittlepeople,however,can'tdothis.__4__AfterChrisfinishesthestory,hisfriendsunderstandonething:__5__Hisfriendsunderstandhowthiscanbeusedinthechangesallteenagersface,suchasdoingwellatschoolorhavinggoodrelationshipsorjustfeelinggoodaboutyourself.A．Iboughtonelastweekandfounditveryinteresting.B．Instead,usethesechangestomakeabetterlife.C．However,somestrangethingshappenedinaschool.D．ItsauthorSpencerJohnsonhaswrittenthebookjustforteenagers.E．Togetmorecheese,moveinanewdirectionquickly.F．Buttheyfindthecheeseisgone.G．Theyareafraidofchangessotheyfindnocheese.課時作業(yè)(十三)Ⅰ.閱讀理解A【語篇解讀】文章屬于記敘文。作者從小到大始終喜愛收集四葉草，并能夠比別人更簡單地找出四葉草。有些人認為，假如四葉草被展示給別人看，運氣就會丟失；而另一些人則認為，假如將四葉草送給別人，運氣就會加倍。作者信任共享會增加主動性，找到四葉草并和別人共享的那種密切感才是重要的。1．答案與解析：D細微環(huán)節(jié)理解題。由第四段中Tome,itwassimple.Thedifferencesintheirshapespoppedout,breakingtheprettypatternoftheconventionalcloverwiththeirthreeperfectleaves.可知，它們形態(tài)的差異會突顯出來，打破了傳統(tǒng)三葉草漂亮的形態(tài)。所以作者能辨別三葉草和四葉草的形態(tài)的區(qū)分。2．答案與解析：C推理推斷題。由第三段可以看出作者特別樂于收集四葉草；第五段中介紹了作者在機場望見一片小的四葉草也會夾在護照里；在作者眼中，四葉草是她的“treasure”并樂于向丈夫、摯友共享。由此可以推斷出作者對四葉草有著特殊的愛。3．答案與解析：A細微環(huán)節(jié)理解題。由最終一段中Idon'tthinktheyinfluencemylifeanymorethanitdoestoshareanythingalittlespecial—thatmomentaryclosenessbetweenyouandafriendorastranger,asyouallleanintowonderatararefind.推斷出作者認為四葉草帶來的密切感才是重要的。4．答案與解析：C主旨大意題。作者通過自己的經(jīng)驗，旨在表達并不只是四葉草能帶來幸運，找到四葉草并和別人共享的那種密切才是最重要的。故C選項“不只是運氣”為短文的最佳標題。B【語篇解讀】文章屬于說明文，介紹了一種長途飛行的蜻蜓Pantalaflavescens。這種蜻蜓冒險長途飛行的緣由是它的繁殖須要潮濕的氣候。5．答案與解析：D推理推斷題。依據(jù)其次段內(nèi)容可知，領導這項探討的生物學家說基因就是證據(jù)。Pantalaflavescens蜻蜓在不同的洲有可能留有后代，才會有相像的基因。反過來，在不同的洲有共同的基因，證明白它們曾飛到過那兒，也就證明白這種蜻蜓是長途飛行者。6．答案與解析：B推理推斷題。依據(jù)第三段中的Thesedragonflieshaveadaptationssuchasincreasedsurfaceareasontheir