懂你英语Lv4unit1Word文档下载推荐.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,butI’magoo