专四dictationWord下载.docx

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