懂你英语L4unit1Word格式文档下载.docx

懂你英语L4unit1Word格式文档下载.docx

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Crutches

n.拐杖;

支持物;

精神上的寄托;

胯部

vt.支撑;

支持

sprain

vt.扭伤（关节）

n.扭伤

anklen.踝，踝关节;

脚脖子

ifyouhadasorethroat,itmaybepainfultoswallow.Asorethroatcanbecausedbyvirusesorbacteria.

Aburnisaninjurytotheskin,causebyfireorheat.Ifyougettooclosetoafire,youwillbeburned.

Anearacheisasharp,dullorburningpainintheear.Commoncausesofanearacheincludeaninfection,achangingairpressureorwaterintheear.

Mountainsarelandformshigherthan2000feetorabout600metersabovesealevel.Hillsarelikemountain,butnotastall.Mountainsareformedbytheforcesdeepwithintheearthandaremadeofmanytypesofrocks

Riversarestreamofwaterthatusuallybeginatmountainsandflowintothesea.Manyearlycitieswerebuiltalongsiderivers.

Mostoftheworld’swaterisintheocean,whicharethelargebodiesofsaltwater.Theoceansarealsoanimportantsourceofoxygen.

Desertsareareasoflandthatreceivelittleornorainfall.Theamountofrainfallinsomedesertsissolowthatonlyafewplantscansurvive.

Avalleyislow,relativelyflatareabetweenhillsandmountains,oftenwiththeriverrunningthroughit.Somevalleysareformedbyflowingriverandothersareformedbyglaciers.

L4Unit1-1dialogue谈论吃饭和预约

Haveyoueatenyet.

NotIhaven’tandI’mhungry.

Metoo.Let’sgooutfordinner.

Whereto

Whataboutjoe’sItalian.

Howmanytimeshaveyoueatenthere.

Ieattherealot.It’soneofmyfavoriteplaces.

Iwenttheretwoweeksagoandtheservicewasterrible.

Really,thenlet’sgosomeplaceselse.

Whatdoyousuggest?

HowabouttheroyalIndian.It’snotfarfromhere.

I’veneverheardofit.Isitgood?

Yes,IhavebeenthereseveraltimesandI’veneverbeendisappointed.

Ok,let’stryit.I’venevereatenIndianfoodforalongtime.

Youwon’tbedisappointedandthepricesarereasonable.

Ah,soyoumeanI’mgoingtopay.

Well,thatwillcertainlybenice.

Whataboutreservations.

Ifyougetthereearlyenough,wewon’tneedthem.

Ihopeyou’reright.

Don’tworry,ifIhavetowait,I‘llpaythebill.

L4Unit1-2Listening旅游2

Today,Christinaandherfriendareenjoyingthemselves.ThismorningtheygotupveryearlyanddroveoutofSanFrancisco.TheycrossedtheBayBridgebeforetheearlymorningcommuteanddrovesouth.Becauseitwassoearly,therewasnotcars.Afterdrivinganhourandahalf,theystoppedtohavebreakfast.Theyorderedpancakesandcoffee.Theyalsohadsomefreshfruits.Whentheyfinishedeating,therewas7:

00.Thentheygotbackintothecaranddrovesouth.Christinawantedtolisteningtomusic,sosheturnedontheradio.Anhourlater,theystoppedforgas.Theynoticedthattherewasachargingstationforelectriccar.

It’snow1:

15andtheyareinYosemitePark.They’vebeentherefor2hourssince11:

15.TheyarelookingattheYosemitefalls,whichisthehighestwaterfallinthepark.Thewaterdroppedtotalof740metersfromthetopofupperfalltothebaseofthelowerfall.

Inanother15minutes,theyplannedtoeatdinneratthemagnificentoldhotelinthepark.Itwasbuiltin1927andhasagreatview.Theywantedtostaytherebuttheycouldn’tgetthereservation.Togetaroomatthathotel,youusuallyneedtomakereservationseveralmonthsinadvance.

Theyplannedtostayintheparkuntilaround4:

00.Bythen,theywillhavebeenintheparkfornearly5hours.ThentheywillgetbackintothecaranddrovebacktotheSanFrancisco.Theyplannedtoeatdinnersomewherealongtheway.Ifthetrafficisn’ttooback,theyshouldbebackinSanFranciscoby10:

00.

Earlytomorrowmorning,they’regoingtocrosstheGoldenGatebridgeandgonorthalongthecoast.Fromsomeplaces,youcanlookoutontheoceanandseewhalesandothersealives.Christinahasneverseenawhalebefore,sosheislookingforwardtoit.Andtomorrownight,theyhavesomethingspecialplan.Theyaregoingtowatchabaseballgame.Christinahasneverseenabaseballgame,butshehasheardthatitisverypopularintheUS.AndtheSanFranciscobaseballteamisonethebest.

L4Unit1-2vocabulary力学、几何

Theforceisthepushorapullontheobject.Aforcechangesthemotionofamovingobject.

Aforcecanbestrongorweakanditalwayshasadirection.

Theearthisaplanetthatgoesaroundthesuninthecircularorbit.Thespeedofitsmotiondoesn’tchangeandthedirectionofitsmotiondoes.Theearthhasalayerofgasaboveitssurface,whichhelpstosupportlife.

Atomsarethebuildingblocksofmatter.Atthecenterofanatomisitsnucleus,whichhasapositiveelectriccharge.Outsidethenucleusareelectrons,whichhaveanegativecharge.

Asteroidsandcomicsareobjectthatorbitsoursun,butaresmallerthanplanets.Asteroidthatpassclosetotheeartharecalledthenear-earthobjects.Thelayerofgases,justabovetheearthsurface,isouratmosphere.Thelayerofatmosphereismadeupofgases,suchasoxygenandhydrogen.Withoutanatmosphere,therewouldbenotlifeontheearth.

Asteroid

n.[天]小行星;

海盘车;

海星

adj.星状的

orbit

n.轨道;

眼眶;

势力范围;

（人生的）旅程，生活过程

vt.&

vi.在…轨道上运行，环绕轨道运行

vi.盘旋;

绕轨道运行

vt.绕轨道而行;

进入轨道

Thetwolinesontheleftintersecteachotheratarightanglewhichis90degrees.The2linesontherightareparallel,whichmeanstheynevercross.Theadjacentsidesofrectangleareperpendicular,whichmeanstheymeetata90-degreeangle.Theoppositesidesoftherectangleareequalaparallel,whichmeanstheynevercross.Theareaofarectangleisthelengthtimesthewidth.

Intersect

vt.横断，横切，横穿

vi.（指线条、道路等）相交，交叉

acircleisthe2dimensionalfigureswithradiusandcircumferencewhichisthedistancearoundthecircle.TheareaofthecircleisπRsquare,whereristheradiusandπistheratioofthecircle’scircumferencetoitsdiameter.

Radiusn.桡骨;

半径范围;

半径（距离）;

用半径度量的圆形面积

Dimensionaladj.维的;

尺寸的;

<

物>

量纲的;

数>

因次的

Asphereisa3dimensionalfigurewiththearatiothesamethevolume,whichisthethree-fourthπRcube.Allpointsonthesurfaceofthesphereareequidistancefromitscenter.

Cube

n.立方形，立方体;

立方，三次幂;

小房间

vt.求…的立方;

把（食物）切成小方块;

测定…的体积

equidistance等距离的

Arighttriangleisa2dimensionalfigurewith3sides,2ofwhichareperpendicular.Tofinditsarea,multiplythelengthofthe2perpendicularsides,AandBanddividedby2,AequatesonehalfAB.

Perpendicular

adj.垂直的，成直角的;

直立的，险陡的;

[建]垂直式的;

〈谑〉直站着的

n.垂直线，垂直面;

直立，直立姿势，廉直;

垂直测器，锤规;

[建]垂直式建筑，绝壁

Equate

vt.等同;

使相等;

相当于

theelectricforcebetweenthenucleusandtheelectronsholdstheatomtogether.

L4Unit1-2dialogue

Haveyoufinishedeatingyet.

Not,Ihaven’t.

Whyareyouinsuchahurry.

I’msorry,butyouaresuchasloweater.

Aloweater?

WellItrytoenjoymyfood.Youjusteatandswallow.Idon’tseehowyoucaneventasteit.

Ok,I’msorry.DoyoumindifIgetanotherglassofvine.

No,goahead.Idon’twantyoutositthereputtingpressureonme.Ithoughtweweregoingtohavearelaxingevening.

Yes,youareright.I’dliketorelax,butIhadalotonmymind.

Whatcreated?

Yes.itis.I’vebeengettingsomestrangeemailsfrommyboss.Hewantsmetocutdownonmyexpenses.Maybehewantstofireme.

Isbusinessbad?

Yes,itis.ButIdon’twanttotalkaboutit.

Ok,b