专四dictationWord下载.docx
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专四dictationWord下载.docx
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“Becausemyhusbandlookslikeamonkey,”Mrs.Williamssaid.
“Well,”thephotographeranswered,“thatisn’tourfault.Whydidn’tyouthinkofthatbeforeyoumarriedhim?
”
2.AGuide'
sAnswer
In1861,theCivilWarstartedintheUnitedStatesbetweentheNorthernandtheSouthernstates.Thewarcontinuedwithgreatbitternessuntil1865,whentheNorthernerswerevictorious.However,eventoday,manySouthernershavenotforgottentheirdefeat,orforgiventheNortherners.
Afewyearsago,apartyofAmericantouristsweregoingroundoneofthebattlefieldsoftheCivilWarwithaguidewhocamefromoneoftheSouthernstates.Ateachplace,theguidetoldthetouristsstirringstoriesabouthowafewSouthernsoldiershadconqueredpowerfulforcesofNorthernersthere.
Atlast,oneofthetourists,aladywhocamefromtheNorth,stoppedtheguideandsaidtohim,“ButsurelythattheNorthernamp3ymusthavewonatleastonevictoryintheCivilWar?
“NotaslongasI’mtheguidehere,madam,”answeredtheSouthernguide.
3.AQualifiedPilot
Thecaptainofasmallshiphadtogoalongarockycoast,buthewasunfamiliarwithit,sohetriedtofindaqualifiedpilottoguidehim.Hewentashoreinoneofthesmallports,andalocalfishemp3anpretendedthathewasapilotbecauseheneededsomemoney.Thecaptaintookhimonboardandaskedhimwheretosteertheship.
Afterhalfanhour,thecaptainbegantosuspectthatthefishemandidnotreallyknowwhathewasdoingandwherehewasgoing.
“Areyousureyouareaqualifiedpilot?
”heasked.
“Oh,yes,”answeredthefisheman.“Iknoweveryrockonthispartofthecoast.”
Suddenlytherewasaterriblecrashfromundertheship.Atoncethefishemanadded,“Andthat’soneofthem.”
4.LivingThingsReact
Youandallorganismsliveanenvironment.Anenvironmentismadeupofeverythingthatsurroundsanorganism.Itcanincludetheair,thewater,thesoil,andevenotherorganisms.
Anorganismrespondstochangesinitsenvironment.Whenanorganismrespondstoachange,itreactsincertainways.Alllivingthingsrespondinsomeway.
Haveyouevernoticedhowplantsandinsectsrespondtolight?
Plantsbendtowardlight.Insectsflytowardlight.
Livingthingsalsorespondinotherways.Theleavesonsometreesrespondtoachangeinseason.Inautumn,theychangecolorsandthenfalloffthebranchesAnimalsalsorespondtoachangeinseason.Squirrelssavenutsforthewinter.Bearssleepthroughthewinterinacave.
Yourespondtoyourenvironmentinmanyways,too.Youmayshiverifyouarecold.Whatotherwaysdoyourespondtochangesinyourenvironment?
5.FloweringPlants
Whatarethepartsofaflower?
Flowerscanhavemalepartsandfemaleparts.Thefemalepartsmakeeggsthatbecomeseeds.Themalepartsmakepollen.Pollenisapowderymaterialthatisneededbytheeggstomakeseeds.Tomakeseeds,pollenandeggsmustcometogether.Thewind,insects,andbirdsbringpollentoeggs.Manyanimalsloveflowers’brightcolors.Theyalsolikeasugaryliquidinflowers.Thisiscallednectar.Whiletheydrinknectar,pollenrubsoffontheirbodies.Astheymove,someofthispollengetsdeliveredtothefemaleflowerparts.
Overtime,thefemalepartsturnintofruitsthatcontainseeds.Animalsofteneatthefruitsandtheseedspassthroughtheirbodiesaswaste.Theanimalsdonoknowtheyareworkingfortheplantsbyplantingseedsastheytraveltodifferentplaces!
UsefulwordsandExpressions:
1.flowering开花的
2.pollen花粉
3.powdery粉状的
4.sugar含糖的,甜的
5.nectar花蜜,甘露
6.rub磨擦
6.FindingtheDirectionandLocation
Howcanyoutellwhichdirection?
Byday,lookfortheSun.Itisintheeastinthemorningandthewestintheafternoon.Atnight,usetheBigDippertohelpyoufindtheNorthStar.Itwouldbebettertobringacompassbecauseitsneedlealwayspointsnorth.
Howdoyouknowhowfaryouhavegone?
Youcouldcounteverystep.Eachstepisabouttwofeet.You’dbetterwearapedometerwhichisatoolthatcountssteps.Ifyouknowwhereyoustarted,whichdirectionyouareheading,andhowfaryouhavegone,youcanuseagoodmaptofigureoutexactlywhereyouare.
Todaythereisanewwayfortravelerstofigureoutwheretheyare.ItistheGPS.Ithas24satellitesthatorbittheearthandconstantlybroadcasttheirpositions.SomedayyoumaycarryasmallreceiverasyouhikeanduseGPStofindoutifyouarethereyet!
UsefulWordsandExpressions:
1.dipper北斗七星
2.compass罗盘
3.pedometer步数计
4.GPS=GlobalPositionSystem全球定位系统
5.orbit轨道,绕……轨道而行
6.receiver接收器
7.Waves
Howdoeslightgetfromthesuntotheearth?
Howdoesmusicgetfromthestagetotheaudience?
Theymovethesameway-----inwaves!
Lightandsoundarefomp3sofenergy.Allwavescarryenergy,buttheymaycarryitdifferently.Lightandsoundtravelthroughdifferentkindsofmatter.Forexample,lightwavescannotmovethroughwalls,butsoundwavescan.Thatiswhyyoucanhearpeopletalkinginanotherroomeventhoughyoucannotseethem.Theenergyofsomewavesisdestructive.Anearthquakeproducesseismicwaves.
Catchawave.Askafriendtostandafewfeetawayfromyou.Stretchaspringbetweenyou.Shakethespringtotransferenergytoit.Whathappens?
Thespringbouncesupanddowninwaves.Whenthewavesreachyourfriend,theybouncebacktoyou!
Lightwavestravel300,000kilometers(186,000miles)persecond!
Theycanalsotravelthroughavacuum.Thatiswhylightfromthesunanddistantstarscantravelthroughspacetotheearth!
UsefulWordsandExpressions;
1.destructive破坏的
2.seismic地震的
3.vacuum真空
8.Soils
Therearemanydifferentkindsofsoils.Differentsoilshavedifferenttypesofrockandmineralsinthem.Somesoilshavemorewaterinthemthanothers.Somesoilsmighthavemoreplantandanimalmaterialinthem,too.
Differentkindsofsoilsarefoundindifferentpartsoftheworld.ThereareseveralkindsofsoilsfoundintheUnitedStates.Insomeareas,thesoilhasalotofclay.Othersoilsareverysandy.Loamisakindofsoilthathasagoodmixtureofclayandsand.
Insomeplaces,soillayersareverythick.Lotsofplantsgrowinplaceswithathicksoillayer.Indryandwindyplacessoillayersaremuchthinner.Layersofsoilonmountainsarethinbecausegravitypullsthesoildownhill.
Thetypeofsoilinaparticularplaceaffectswhatkindsofplantscangrowthere.
UsefulWords:
1.clay黏土,泥土
2.loam肥土
3.layer层
4.gravity地心引力,重力
5.downhill往下
9.Crisis
Lifeisacontest!
Whowillwin?
Abluebirdandsparrowbothcompeteforspacetobuildtheirnests.Afast-growingmapletreeandslower-growingdogwoodcompeteforthesunlighttheybothneed.Oilcompeteswithcoalandnuclearpowerasanenergysourceforelectricpowerplants!
Thereisaproblem.Thereisalimitedamountofspaceforbirds,sunlightfortrees,andenergyforpeople!
Ifwedonotcutbackonourusesofsomeofourresources,somedaytheywillbegone!
Howcanweuseenergytodayandknowwewillhaveenoughtogoaroundinthefuture?
Wecanchoosealternate,orreplacement,energyresources.Ittakestheearthmillionsofyearstocreatecoal,oil,andgas.Theyarenonrenewableresources.
Solarenergy,windenergyandwaterenergyarerenewableresources.Ittakestheearthmillionsofyearstocreatecoal,oil,andgas.Theyarenonrenewableresources.
Solarenergy,windenergyandwaterenergyarerenewable.Whatotherwayscanweconserveoursources?
Howcanwemakesurethereisalwaysenoughtogoaround?
Usefulwordsandexpressions:
1.bluebird蓝知更鸟
2.sparrow麻雀
3.dogwood山茱萸
4.powerplant发电厂,发电站
5.alternate替换物
6.nonrenewableresources不可再生资源
7.conserve保存,保藏
10.America’sWorstSurprise
December7,1941wasoneoftheworstdaysinAmericanhistory.NearlyallAmericanswhoareoldenoughtorememberthatdaycanstillrememberwhattheyweredoingatthemomenttheyheard“thenews”.ThenewswasthatAmericahadbeenattacked!
Shortlybefore2:
00P.M.,aradiodispatchcameintoWashingtonfromHonolulu,Hawaii.“AirRaid,PearlHarbor—Thisisnodrill.”JapaneseplaneshadbegunanattackonthelargestAmerican
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