Unit4AmazingPlantsandAnimals核心知識(shí)點(diǎn)精講精練2(Grammar)【主要內(nèi)容】【單元核心知識(shí)點(diǎn)精講精練】每個(gè)單元按照教材安排分為SectionA；Grammar和SectionB三個(gè)部分。Grammar部分精講本單元的重點(diǎn)語(yǔ)法，講解部分配有隨學(xué)隨練。Grammar部分還設(shè)置了單元語(yǔ)法基礎(chǔ)練習(xí)和單元語(yǔ)法提升練習(xí)，有單項(xiàng)填空、翻譯句子、語(yǔ)篇填空、補(bǔ)全對(duì)話、完形填空、閱讀理解等豐富多樣的習(xí)題幫助學(xué)生更好地學(xué)習(xí)并掌握單元語(yǔ)法知識(shí)。單元語(yǔ)法解析形容詞與副詞的最高級(jí)當(dāng)進(jìn)行三者或三者以上事物比較時(shí)，可以用形容詞或副詞的最高級(jí)形式來(lái)表示。比較級(jí)的構(gòu)成規(guī)則一般在詞尾加est：talltallest；longlongest以不發(fā)音的e結(jié)尾，直接加st：nicenicest；hugehugest重讀閉音節(jié)的單詞，當(dāng)詞尾只有一個(gè)輔音字母時(shí)，要先雙寫最后一個(gè)輔音字母，再加est：fatfattest；bigbiggest；hothottest以輔音字母+y結(jié)尾的雙音節(jié)詞，將y改為i，再加est：busybusiest；heavyheaviest注意：dry的比較級(jí)為driestshy的比較級(jí)為shyest部分雙音節(jié)詞和多音節(jié)詞在其前面加most構(gòu)成比較級(jí)：beautifulmostbeautiful；popularmostpopular注意：以y；ly等后綴構(gòu)成的雙音節(jié)派生詞和以形容詞前綴un開(kāi)頭的三音節(jié)詞，末尾加est構(gòu)成比較級(jí)：friendlyfriendliest；healthyhealthiest；unhappyunhappiest；lovelyloveliest以加ing；ed；ful；ous等后綴構(gòu)成的派生詞在單詞前加most構(gòu)成比較級(jí)：helpfulmosthelpful；tiredmosttired；famousmostfamous不規(guī)則變化：good/wellbest；bad/badly/illworst；many/muchmost；littleleast；farfarthest/furthest；oldoldest/eldest注意：oldest即可以修飾物，也可以修飾人；eldest只表示“年齡最老的”。[隨學(xué)隨練]單項(xiàng)填空。寫出下列單詞的比較級(jí)和最高級(jí)形式原型比較級(jí)最高級(jí)原型比較級(jí)最高級(jí)largewellheavyshybadhighbeautifulhotdangerousfriendlyslowlyfarearlyhelpful最高級(jí)的具體用法the+最高級(jí)(+n.)+比較范圍in/of/among...in/of/among...介詞短語(yǔ)或從句。Heisthetallestboyinourclass.他是我們班最高的男孩。Safetyisthemostimportantofall.安全是最重要的。ThisisthemostinterestingbookthatI’veeverread.這是我讀過(guò)的最有趣的書。oneofthe+最高級(jí)+可數(shù)名詞復(fù)數(shù)此結(jié)構(gòu)表示“...中最...的之一”。TheAmazonRiverisoneofthelongestriversintheworld.亞馬遜河是世界上最長(zhǎng)的河之一。MountTaishanisoneofthemostpopulartouristattractionsinChina.泰山是中國(guó)最受歡迎的旅游景點(diǎn)之一。Which/Who...+最高級(jí)，A,BorC/比較范圍?Whichcoatisthecheapest,theredone,theyellowoneortheblackone?哪件外套最便宜，紅色的、黃色的還是黑色的？Whorunsfastestinyourclass?你們班誰(shuí)跑得最快？the+序數(shù)詞+最高級(jí)HainanIslandisthesecondlargestislandinChina.海南島是中國(guó)第二大島。[隨學(xué)隨練]單項(xiàng)填空?！狧owisyournewschool,Tom?—It’sgreat!Theteachersarefriendlyhere,andthecampus(校園)is________inthecity.A．themostbeautifulB．morebeautiful C．beautiful D．themorebeautiful—Ofallthesubjects,IthinkChineseis______.—Ithinkso.A．interesting B．moreinteresting C．mostinteresting D．themostinterestingTheYellowRiveristhe________riverinChina.A．secondlong B．secondlongest C．secondlonger D．twolongestAmongallthevehicles(交通工具),theplaneis________onethesedays.A．safe B．safer C．thesafer D．thesafestThehotelisveryold.It’soneof_______inthecity.A．theoldestbuilding B．olderbuildings C．theoldestbuildings D．oldbuildingSkatingisoneof________sportsinwinter.Teenagerslovetoplayinthesnow.A．popular B．morepopular C．themostpopular D．theleastpopularTheAfricanelephantisthesecond________landanimalintheworld,justbehindtheAsianelephant.A．larger B．large C．thelargest D．largestTianshui,anewpopularspotforHotPot,is________cityinGansuProvince.A．secondlargest B．secondlarger C．thesecondlarge D．thesecondlargestWhosings________,Tom,JackorBill?A．morebeautiful B．morebeautifully C．themostbeautifully D．themostbeautiful—TheappDouyinisahitamongtheyoungpeopleinChina.—Yes.It’soneof_________appsI’veeverused.A．good B．better C．thebest D．theworse比較級(jí)形式表示最高級(jí)含義比較級(jí)+than+any+other+單數(shù)名詞比較級(jí)+than+theother+復(fù)數(shù)名詞這兩個(gè)結(jié)構(gòu)用于同一范圍內(nèi)的比較，表示“...比任何其他的...更...”，實(shí)際含義也就是前者是同一范圍內(nèi)最...的一個(gè)，表示最高級(jí)含義。Mikeistallerthananyotherboyinhisclass.邁克比班上任何其他男孩都高。(邁克是班上最高的男孩)Asiaisbiggerthantheothercontinentsontheearth.亞洲是地球上最大的洲。比較級(jí)+than+anything/anyoneelseTimeismorevaluablethananythingelse.時(shí)間是最寶貴的。否定詞與比較級(jí)連用NooneismorecarefulthanTom.沒(méi)有人比Tom更認(rèn)真了。(Tom是最認(rèn)真的)Ican’agreewithyoumore.我完全同意你的看法。[隨學(xué)隨練]單項(xiàng)填空?！狹anyactorsareinMyPeople,MyCountry.Whodoyouthinkact________?—OfcourseMr.Huang.Wecan’tfind________one.A．better;abest B．a(chǎn)better;bestC．best;abetter D．a(chǎn)best;better—Tom,whydosomanypeoplechoosetovisitJiaochangroadinKunminginMay?—BecausetheythinktheJacarandamimosifolia(藍(lán)花楹)is________thananyotherflower.A．morebeautiful B．beautiful C．mostbeautiful D．muchbeautiful—DoyouknowShanghaiisoneof________citiesintheworld?—Yes,it’sbiggerthan________cityinChina.A．thebiggest;anyother B．thebiggest;any C．bigger;anyother D．bigger;theother—Whatdoyouthinkofthetalentshow?—It’sexcellent!I’veneverseena________onethanthis.A．better B．theworst C．worse D．thebestThepollutionherecouldn’tbe________.Therewasaheavysmokewithterriblesmell.A．bad B．worse C．worst D．better—Whatdoyouthinkofhisdrawing?—Oh,noonedraws________.A．good B．well C．better D．best使用最高級(jí)的注意事項(xiàng)形容詞最高級(jí)前的the一般不能省略；副詞最高級(jí)前的the可以省略。Heistheclevereststudentinourschool.他是我們學(xué)校最聰明的學(xué)生。Herun(the)fastestinourschool.他是我們學(xué)校跑的最快地。形容詞最高級(jí)前省略the的情況表示“非常”It’samostimportantproblem.這是個(gè)非常重要的問(wèn)題。形容詞最高級(jí)前有物主代詞、指示代詞、名詞所有格等修飾Theseareherbestshoes.這是她最好的鞋子。兩個(gè)形容詞最高級(jí)修飾同一個(gè)名詞時(shí)，后一個(gè)最高級(jí)前的the通常省略Thisisthebiggestandnewestroominourhotel.這是我們旅館最大最新的房間。[隨學(xué)隨練]單項(xiàng)填空?！狝ndy!HarryPotterandtheGobletofFireis________bestfilmIhaveeverseen.—Ican’tagreemore.Ihaveneverseen________betteronebefore.A．the;the B．/;the C．a(chǎn);a D．the;a—WhyisDannysopopularwithhisclassmates?—Becausehecansing________inhisclass.A．morebeautifully B．mostbeautifully C．morebeautiful D．lessbeautifully—Ithinkthemobilephoneis__________ofall.—Idon’tagreewithyou.A．moreuseful B．themoreusefulC．mostuseful D．themostuseful—Whichis________seasoninyourhometown?—Ithinkit’sspring.Everythingissobeautifulinthespring.A．nice B．nicer C．nicest D．thenicestJimrunsthe________ofthethree.A．quickest B．morequickly C．quicker D．mostquickly—Lucyisoneof________studentsinourclass.Sheisverypopularamongus.—Whatanicegirl!Herparentsmustbeproudofher.A．thefriendliest B．mostsuccessful C．moreoutgoing D．calmer單元語(yǔ)法基礎(chǔ)練習(xí)單項(xiàng)填空AmongallmountainsinChina,MountTaiisnotonly________thananyothermountains,butalso________,saidbytouristsaroundtheworld.A．higher;themostbeautiful B．thehighest;morebeautifulC．high;themostbeautiful D．higher;morebeautiful—Tonyalwaysarrives__________amongus.—Yes,helikestobepreparedforeverythinginadvance.A．earlier B．later C．theearliest D．thelatest—Whatdoyouthinkofyourcousin?—Ithinkheis________ofalltheboysandgirlshere.A．funny B．funnier C．funniest D．thefunniest—WhatdoyouthinkofthemovieNeZha2?—It’sfantasticandit’soneof________filmsduringtheSpringFestival.A．themostpopular B．morepopular C．lesspopular D．popularDianchiLakeinKunmingisoneof________freshwaterlakesinChina.A．large B．thelargest C．larger D．largest—Whichriveris________,theYangtzeRiverortheYellowRiver?—TheYangtzeRiver.Itisthethird________riverintheworld.A．longer;long B．longest;long C．longest;longer D．longer;longestPaullovesanimals,sohelooksafterMary’spetdog________ofallherfriends.A．morecareful B．themostcareful C．themostcarefully D．morecarefullyBeforethesportsmeeting,Tomtrained________thanhisteammates,butJerrypractised________ofall,soJerrywonthechampionshipatlast.A．harder;hardest B．hard;harderC．morehard;mosthardest D．hardest;harder—Whichclothesstoreis________,Miller’sorBlueMoon?—Miller’s,ofcourse.Andyoucanbuyclothes________thereintown.A．thebetter;themostcheaply B．better;thecheapestC．better;mostcheaply D．moregood;cheapest—Doyoulikeeatingseafood?—Ofcourse.Nothingcanbe________.A．delicious B．muchdeliciousC．moredelicious D．mostdelicious—Whosings________ofthethreegirls?—Mary.Ithinknoonesings________beautifullythanher.A．better;themost B．better;more C．thebest;themost D．thebest;more—Educationhelpsusmakechoicesmuchmore________.—Icouldn’tagree________.Mydreamistogotocollege.A．wisely;less B．wisely;more C．wise;less D．wise;moreThefilmisoneof________thatI’veeverseen.Ialmostfellasleepinthecinema.A．themostinteresting B．theleastinterestingC．themostbored D．theleastboring—Chinaisover5000yearsold.It’soneof________countriesintheworld.—Yes.Ithasmuch________historythantheUS.A．old;long B．theolder;longerC．theoldest;thelongest D．theoldest;longerChinaisalmostas________astheUS,anditisthe________countryinAsia.A．big;bigger B．big;biggestC．bigger;biggest D．big;big—Marylookssoslim.—Yes.Sheeatsthe________meatandthe________vegetablesofus.A．least;most B．fewest;most C．most;fewest D．fewest;least用所給詞的適當(dāng)形式填空，或填寫適當(dāng)?shù)脑~使語(yǔ)法正確并且句意完整。TheMogaoCavesareoneofthe(large)stonecarvedarttreasuresintheworld.Theboyhasthe(little)milkofthethree.Whodoyouthinkis(funny),Mark,Claire,orSue?Ithinkrosesarethe(nice)ofalltheflowers.Ihavethe(few)booksofthesixstudents.Ithinkhecanjump(far)ofusallandhewillgoabroad(在國(guó)外)for(far)study.CentralParkisoneofthe(important)publicparksinNewYork.MountHuangisoneofthe(amazing)mountainsinChina.Itisalsooneoftheworld’s(important)wetlands.TheSpringFestivalisoneofthe(hot)festivalsinChina.The(three)longestriverintheworldistheYangtzeRiver.Steveisthesecond(tall)studentinourclass.Ofthethreepostoffices,thisoneisthe(close)tomyhouse.IthinkJackwrites(careful)ofallthestudents.Heseldommakesmistakes.Ithinkshedances(good)inourclass.Whosingsthe(loudly),Susan,BettyorKaren?—Whatdoyouthinkofthiskindofclayart?—Great!Ihaveneverseena(beautiful)one.Nobodyis(clever)thanJaneinourclass.Lucyis(thin)thananyotherstudentinherclass.AccordingtoGuinnessWorldRecords(世界吉尼斯紀(jì)錄),JeanneLouiseCalmentofFranceistheworld’swoman,at122years164days.(old)翻譯句子。非洲象是最大的陸地動(dòng)物。這三個(gè)孩子當(dāng)中，吉姆寫作業(yè)最慢，但是犯錯(cuò)往往也最少。我覺(jué)得胡蘿卜是最健康的蔬菜之一。長(zhǎng)城是世界上最著名的地方之一。洞庭湖是中國(guó)第二大淡水湖。你最喜歡哪項(xiàng)運(yùn)動(dòng)，游泳，跑步還是打籃球？湯姆是我們班最有趣的男孩。(用兩種結(jié)構(gòu)翻譯)單元語(yǔ)法提升練習(xí)語(yǔ)法選擇Thegiraffehasaverylongneckandfourlongandthinlegs.Itisthetallestlivinganimalonland.Itsfrontlegsare1thanitsbacklegs.Anadultgiraffecanbefivemeterstall.Itcanrunvery2—about30milesanhour.Itisbrownandyellow.GiraffesarefromAfrica.Theycan3upto25yearsinthewild.Theydonotlikebeingaloneandtheyliveingroupsofsixormore.Tofindfood,theytravelover4largeareaanddon’thaveafixed(固定的)home.Theyspendmostofaday5.Theleaves,flowersandfruitatthetopoftrees6theirmainfood,andtheyalsoeatgrassandplants.Amothergiraffeispregnant(懷孕的)7about15monthsandonlyhasonebaby.Itgivesbirthwhilestandingup.8ababygiraffe’sfirstexperienceintheworldistofallseveralmetersfromtheground!Withinonehourofbeingborn,thebabygiraffeisonitsfeetsearchingformilkfrom9mother.Thebabygiraffecanweigh60kilosatbirthanditstopsgrowingwhenitis10yearsold.1．A．long B．longer C．thelongest2．A．fast B．fastly C．faster3．A．lived B．a(chǎn)reliving C．live4．A．a(chǎn) B．a(chǎn)n C．the5．A．eat B．eating C．toeat6．A．is B．a(chǎn)re C．were7．A．from B．by C．for8．A．So B．But C．When9．A．it B．it’s C．its10．A．tenth B．ten C．theten完形填空Octopuses(章魚)aresmartseaanimals.Theyhavespecialwaystokeepthemselves1.Sincetheydon’thaveteethorclaws(爪子),theyhavelearnedcleverwaystoescapefromdanger,Onewayis2.Octopusesoftenhideinthesandatthebottomofthesea.Becausetheirbodiesarevery3,theycangetintosmallspacesbetweenrockstostaysafe.Anotherwayischangingcolour.Octopusescanchangethecolouroftheirskintolooklikethesandorrocksaroundthem.Thiscolourchange4themtostayhiddenfromotheranimals.Octopusescanalsoshootdark5intothewater.Theinkmakesacloudthatconfuses(迷惑)otheranimals,givingtheoctopustimetoswimaway.It’slikeamagic6!Itcanalsomakeitselflooklikeaseasnakebyhidingitsbodyinthesandandstickingouttwoarms.Thearmswillchangecolourtolooklikeasnakeand7theenemyaway.Andifthere’snotimetohide,theoctopuscan8oneofitsarms!Thearmwillkeepmovingtodistract(迷惑)theenemywhiletheoctopusswimsaway.Don’t9—thearmwillgrowbacklater!Octopusesaretrulyamazinganimalswith10waystostaysafe!1．A．warm B．happy C．safe D．healthy2．A．swimming B．jumping C．fighting D．hiding3．A．long B．thick C．soft D．hard4．A．stops B．helps C．warns D．forces5．A．ink B．light C．sound D．wind6．A．trick B．reply C．clock D．day7．A．give B．take C．put D．scare8．A．breakoff B．raiseup C．showoff D．fixup9．A．count B．a(chǎn)ccept C．worry D．push10．A．dangerous B．stupid C．clever D．honest語(yǔ)法填空AGiraffesaretheworld’stallestlandanimal.Atbirth,ababygiraffeisabout1.8metrestallandweighsabout68kilograms.Agiraffe’stongue(舌頭)isusuallyblack,blue1purple.Itcanbeabout50cmlong.Thatmeanstheanimalcanuseitstongue2(get)foodhighinthetree.Healthygiraffescanliveabout25yearsinthewild.Inthezoo,theycanlive28yearsorlonger.Giraffesoftenliveingroupsof10to20.Agroupofgiraffesiscalleda“tower”.Giraffes’groupscanchangeeveryday,evenfromhour3hour.A“tower”ofgiraffesyouseetodaymightnotbethesameoneyouseetomorrow.It’samazing,isn’tit?Livingingroupsoffersmany4(advantage)togiraffes.Ithelpsgiraffesshareinformationaboutfoodandwaterandprovides5(safe)innumbersina“tower”.Giraffesplay6importantroleinnature.Butnowtheyareintrouble.Thenumberofgiraffesisgettingsmaller.People7(hunt)giraffesforalongtimefortheirmeat,coatsandtails.Habitatloss(棲息地喪失)is8(big)problemamongtheonestheyfacenow.Giraffesare9(true)specialanimals.Learningabouttheproblemstheyfacehelpsusprotectthem.Bysharingthesewonderfulfacts,wecanhelpdosomethingtomakesuregiraffesand10(they)homesaresafeforthefuture.BHummingbirdsarebeautifulbirds.TheseamazingbirdsliveinNorthandSouthAmerica.Manyof1(they)arequitetiny.Actually,theyare2(small)birdsintheworld,someareonlysixcentimeterslong.However,theyarefamous3flyingfast.Theycanflyupto48kilometers4hour!Hummingbirdsmovetheirwingsveryfast.Theycanflystraightuporhover(盤旋),justlikehelicopters(直升機(jī)).Theselittlebirdscanalsoflybackward!Doyouknow5theyarecalledhummingbirds?Becausewhentheyfly,theirwingsmakeahummingsound.Theirwingshumbecausetheybeatsofast,manytimeseverysecond.Andthat6(take)alotofenergy.Sothey’realwaysbusylookingforfood.Hummingbirdshavenosenseofsmell,buttheycansee7(real)well.Theylike8(color)flowers.Theyalwaysflyaroundflowers9(look)forfood.Theyjustneedfoodsomuchthattheyhavetoeatevery1015110(minute)!Actually,theycaneathalftheirweightinsugareveryday.補(bǔ)全語(yǔ)篇Thechrysanthemum(菊花)isaverypopularflowerinChina.ThebeautifulflowerhasmanymeaningsinChineseculture.Thechrysanthemumisknownasoneofthe“FourGentlemeninPlants”.Theotherthreearetheplumblossom,theorchid,andbamboo.1Thechrysanthemumesoutinbrightcolorsduringcoldautumndays,whenmostflowersdie.Theyarebeautiful,strongandtough.Sotheflowergreatlyinspired(激勵(lì))Chinesepoets.Theyusedittorepresent(代表)themselvesintheirworks.2Heoncewroteapoemaboutlivingasahermit(隱士).Heshowedhowhelovedthechrysanthemumandusedittoshowhisspiritsinthepoem.“Ipluckchrysanthemumsundertheeasternfence(籬笆).Carefree,IcatchthesightofSouthernMountain,”Taowroteinhispoem.3ButchrysanthemumsarenotonlyfoundinChinesepoems.4TheChongyangFestivalfallsontheninthdayoftheninthmonthinthelunarcalendar(陰歷).Onthatday,drinkingwine(酒)madefromchrysanthemumsisapopulartradition.ChrysanthemumteaisalsousuallyseenonChinesedinnertables.5Inaword,thechrysanthemumhasbroughtgreatinfluencetopeople’slife.A．TheyarealsopartofChinesefood.B．Fromthenon,thechrysanthemumhasbeethesymbolofthehermit.C．Inthepast,allofthemstoodfornoblequalities(高尚的品質(zhì)).D．TaoYuanmingwasafamouspoet.E．Itistastyandpeoplebelieveitisgoodfortheirhealth.閱讀理解A①Thefastestgrowingplantintheworldisbamboo.Somebamboogrowssoquicklythatpeoplesaytheycanwatchitgrow.Thespeedofgrowthdependsonthetypeofbamboo,thesoilandtheseason.Normalbamboogrowsabout30cmaday.Itusuallygrowsintropicalareas(熱帶地區(qū)).Itcanalsobefoundinotherpartsoftheworld.BambooplantsarefoundinAsia,partsofAfricaandSouthAmerica.②Bambooisawonderfulplantformanypeoplearoundtheworld.Thereareover1,000usesforit.Peoplemaketables,clothes,anditisalsoedible(可食用的).③________Peopleuseitbecauseit’sverystrong.Theyuseittobuildhouses,boatsandbridges.TheChinesemadeabamboobridgeovertheMinRiverinSichuan,Chinaalmost1,000yearsago.BambooisusedtobuildhousesespeciallyinChinaandthePhilippines.④Bambooistheearliestmaterialusedtomakethelightbulb.ThegreatscientistThomasEdisondidnotinventthelightbulb,buthemadeitperfect.Hewantedthematerialinsidetoburnforalongperiodoftime.Hetriedover1,000differenttypesofmaterials.Noneworkedverywell.Oneday,hetriedtouseapieceofbambooandthelightbulblitupforoverathousandhours.Thisinventionhelpedotherscientiststomakethemodernlightbulbweusetoday.1．Whatcanweknowfromthepassage?A．Bamboocan’tbeeaten.B．Bamboowasusedinbuilding1,000yearsago.C．Bambooisstrongerthanothermaterials.D．Bamboowastheearliestmaterial.2．Whichsentencecanbeputinthe“________”?A．Thelovelypandasoftenfeedonbamboo.B．Peopleplantedbamboohundredsofyearsago.C．Oneoftheworld’soldestbuildingmaterialsisbamboo.D．Bamboothatgrowsintropicalforestsisusuallytallandlarge.3．Whatisthepurposeofwritingthepassage?A．Toletreadersknowtheimportanceofbamboo.B．Tolearnhowtobuildahousewithbamboo.C．Tolearnhowtoprotectbamboo.D．Toknowhowtoplantbamboo.4．WhichofthefollowingisTRUEaccordingtothepassage?A．Alltypesofbamboogrow30cmaday.B．Bamboocanonlybefoundintropicalareas.C．TheChinesebuiltabamboobridgeovertheMinRiverabout1,000yearsago.D．ThomasEdisoninventedthelightbulbwiththebamboomaterial.5．Whichofthefollowingshowsthestructureofthispassage?A．B． C． D．BImagineifanimalscouldjointheOlympicGames!They’dneedthreedifferentgoldmedalsforthechampions(冠軍)ofspeedonland,inthesea,andinthesky.Onground,thecheetahwouldracepasteveryone,asailfishwouldswimtovictoryat110km/h.Andupintheair,aperegrinefalcon(游隼)wouldflydownatanamazingspeedof320km/h.Thesearethespeediestanimalsintheirenvironments.Cheetahsarelikesuperfastsportscarsoftheanimalworld.Theybreathesuperquickandtheirlongtailshelpthemturnaroundcornerslikeracecardrivers.They’resofastthattheycangofromstandingstilltoracingfasterthanmostcarsinjustafewseconds!Intheocean,sailfisharethefastestswimmers.Theylookprettyspecialwiththeirlong,swordlikenosesandbigfinsthatlooklikesails.Theycanswimthroughwatersofastandevenjumpoutofit,makingthemreallyfuntowatch.Highupinthesky,peregrinefalconsarethespeediest.