懂你英语Level4上课讲义.docx

懂你英语Level4上课讲义.docx

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懂你英语Level4上课讲义

懂你英语Level-4

L4Unit1-1Listening旅游

Christinaisonatwo-weeksvacation.Thisisthefirstvacationshehashadforalongtime.Thelastvacationshetookwasmorethan2yearsago.NowsheisvisitingafriendinSanFrancisco.Herfriendandherhusbandarelivingnearthecenterofthecity.Heworksforastart-upcompanyinSiliconValley.Whileheisworking,sheworkspart-timeatadepartmentstore.

Christianahasn’tseenherfriendforalongtime.Thelasttimetheysaweachotherwas3yearsago.Atthattime,theywerebothworkingatadepartmentstore.ThenChristinaquitherjobandstartedherownbusiness.Shedesignswomen’sclothing.Shehas2employeesnowandhercompanyisslowlygrowing.

ChristinahascometoSanFranciscobyherself.Herhusbanddidn’tcomebecausehehastowork.Hetriedtostartacompany2yearsago,butitdidn’tworkout.Hiscompanyfailedafteronlyafewmonths.Sonowhe’sworkingatanothercompanyandsavingmoney.Oncehesavesenoughmoney,heplanstostartanothercompany.Hedoesn’twanttogiveup.

ThisisthesecondtimeChristinahasbeentoSanFrancisco.Thefirsttimewaswhenshewasahighschoolstudent.Thatwasmorethan10yearsago.DuringthattripshewasonlyinSanFranciscoforafewdays.AfterthatshewenttoLosAnglesandNewYork.Thistimesheandherfriendplantorelaxandhavefun.

Christinaarrivedtwodaysago,thedaybeforeyesterday.Herfriendmetherattheairportanddrovehertoherapartment.Herapartmentisjustnorthoftheairport,about20minutesfromSanFrancisco.It’sasmallapartment,butit’sonahillandithasagreatview.Yesterday,theywentdowntownandrodethecablecars.Christinawassurprisedbyhowsteepthehillsare.Thentheywalkedalongtheoceanandatelunchattheseafoodrestaurant.Fromtherestaurant,theycouldseetheGoldenGatebridge.

Tomorrowthey’replanningtodrivetoYosemiteNationalPark.Bycarit’sabout4hoursaway.Christinahasneverbeentherebefore,sosheisexcited.Shehasheardthattheparkisverybeautiful.HerfriendhasbeentoYosemiteseveraltimes.Shesaysit’soneofthemostbeautifulplacesintheworld.Christinajusthopesthatherfriendisagooddriver.

L4Unit1-1vocabulary伤病和地貌地形

Headachecanbeverypainfulandcanlastforalongtime.Ifyouhaveheadacheyourheadhurts.

Aheadachecanbecausedbyaninjurytothehead.

Asprainedanklecanbesopainfulthatyoucan’twalk.Someonewithasprainedanklemayneedtousetocrutchestowalk.

Ifyouhaveasorethroat,itmaybepainfultoswallow.Asorethroatcanbecausedbyvirusesorbacteria.

Aburnisaninjurytotheskincausebyfireorheat.Ifyougettooclosetoafire,youwillbeburned.

Anearacheisasharp,dullorburningpainintheear.Commoncausesofanearacheincludeaninfection,achangingairpressureorwaterintheear.

Mountainsarelandformshigherthan2000feetorabout600metersabovesealevel.Hillsarelikemountain,butnotastall.Mountainsareformedbytheforcesdeepwithintheearthandaremadeofmanytypesofrocks

Riversarestreamofwaterthatusuallybeginatmountainsandflowintothesea.Manyearlycitieswerebuiltalongsiderivers.

Mostoftheworld’swaterisintheocean,whicharethelargebodiesofsaltwater.Theoceansarealsoanimportantsourceofoxygen.

ThePacificOceanisthelargestanddeepestocean,coveringmoreareathanallthecontinentsputtogether.

Desertsareareasoflandthatreceivelittleornorainfall.Theamountofrainfallinsomedesertsissolowthatonlyafewplantscansurvive.

Deserttemperaturescanrangefromcoldatnighttoveryhotduringthedaytime,oftenabove120degreesF.

Avalleyislow,relativelyflatareabetweenhillsandmountains,oftenwiththeriverrunningthroughit.Somevalleysareformedbyflowingriverandothersareformedbyglaciers.

L4Unit1-1dialogue谈论吃饭和预约

M:

Haveyoueatenyet.

F:

Not,Ihaven’tandI’mhungry.

M:

Metoo.Let’sgooutfordinner.

F:

Whereto

M:

Whataboutjoe’sItalian.

F:

Howmanytimeshaveyoueatenthere.

M:

Ieattherealot.It’soneofmyfavoriteplaces.

F:

Iwenttheretwoweeksagoandtheservicewasterrible.

M:

Really,thenlet’sgosomeplaceselse.Whatdoyousuggest?

F:

HowabouttheroyalIndian.It’snotfarfromhere.

M:

I’veneverheardofit.Isitgood?

F:

Yes,IhavebeenthereseveraltimesandI’veneverbeendisappointed.

M:

Ok,let’stryit.I’venevereatenIndianfoodforalongtime.

F:

Youwon’tbedisappointedandthepricesarereasonable.

M:

Ah,soyoumeanI’mgoingtopay.

F:

Well,thatwouldcertainlybenice.

M:

Whataboutreservations.

F:

Ifyougetthereearlyenough,wewon’tneedthem.

M:

Ihopeyou’reright.

F:

Don’tworry,ifwehavetowait,I‘llpaythebill.

L4Unit1-2Listening旅游2

Today,Christinaandherfriendareenjoyingthemselves.ThismorningtheygotupveryearlyanddroveoutofSanFrancisco.TheycrossedtheBayBridgebeforetheearlymorningcommuteanddrovesouth.Becauseitwassoearly,therewerealmostnotcars.

Afterdrivinganhourandahalf,theystoppedtohadbreakfast.Theyorderedpancakesandcoffee.Theyalsohadsomefreshfruits.Whentheyfinishedeating,itwas7o’clock.Thentheygotbackintothecaranddrovesouth.Christinawantedtolistentomusic,sotheyturnedontheradio.Anhourlatertheystoppedforgas.Theynoticedthattherewasalsoachargingstationforelectriccars.

It’snow1:

15andtheyareinYosemitePark.Theyhavebeentherefortwohours,since11:

15.TheyarelookingattheYosemitefalls,whichisthehighestwaterfallinthepark.Thewaterdropsatotalof740metersfromthetopofupperfalltothebaseofthelowerfall.

Inanother15minutestheyplantoeatlunchatamagnificentoldhotelinthepark.Itwasbuiltin1927andhasagreatview.Theywantedtostaythere,buttheycouldn’tgetreservation.Togetaroomatthathotelyouusuallyneedtomakereservationsseveralmonthsinadvance.

Theyplantostayintheparkuntilaround4o’clock.Bythentheywillhavebeenintheparkfornearly5hours.Thenthey’llgetbackintothecaranddrivebacktoSanFrancisco.Theyplantoeatdinnersomewherealongtheway.Ifthetrafficisn’ttoobad,theyshouldbebackinSanFranciscoby10o’clock.

EarlytomorrowmorningtheyaregoingtocrosstheGoldenGateBridgeandgonorthalongthecoast.Fromsomeplaces,youcanlookoutontheoceanandseewhalesandothersealife.Christinahasneverseenawhalebefore,soshe’slookingforwardtoit.Andtomorrownighttheyhavesomethingspecialplanned.Theyaregoingtowatchabaseballgame.Christinahasneverseenabaseballgame,butshehasheardthatitisverypopularintheUS.AndtheSanFranciscobaseballteamisoneofthebest.

L4Unit1-2vocabulary力学、几何

Aforceisapushorapullontheobject.Aforcechangesthemotionofamovingobject.

Aforcecanbestrongorweakanditalwayshasadirection.

Theearthisaplanetthatgoesaroundthesuninthecircularorbit.Thespeedofitsmotiondoesn’tchangeandthedirectionofitsmotiondoes.Theearthhasalayerofgasaboveitssurface,whichhelpstosupportlife.

Atomsarethebuildingblocksofmatter.Atthecenterofanatomisitsnucleus,whichhasapositiveelectriccharge.Outsidethenucleusareelectrons,whichhaveanegativecharge.

Asteroids（小行星）andcomicsareobjectthatorbits（轨道）oursun,butaresmallerthanplanets.Asteroidthatpassclosetotheeartharecalledthenear-earthobjects.Thelayerofgases,justabovetheearthsurface,isouratmosphere.Theatmosphereismadeupofgases,suchasoxygenandnitrogen.Withoutanatmosphere,therewouldbenotlifeonearth.

Thetwolinesontheleftintersect（横断）eachotheratarightanglewhichis90degrees.The2linesontherightareparallel,whichmeanstheynevercross.

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

Acircleisthe2dimensional（尺寸的）figureswithradius（半径）andcircumferencewhichisthedistancearoundthecircle.TheareaofthecircleisπRsquare,whereristheradiusandPiistheratioofthecircle’scircumferencetoitsdiameter.

Asphereisa3dimensionalfigurewiththearatioandvolume,whichisthethree-fourthπRcube（立方体）.Allpointsonthesurfaceofthesphereareequidistant（等距离的）fromitscenter.

Arectriangleisa2dimensionalfigurewith3sides,2ofwhichareperpendicular.Tofinditsarea,multiplythelengthofthe2perpendicular（垂直的）sides,AandBanddividedby2,Aequates（相等）onehalfAB.

Theelectricforcebetweenthenucleusandtheelectronsholdstheatomtogether.

Aforcecanincreaseordecreasethespeedofanobject,anditcanchangethedirectionofmotion.

L4Unit1-2dialogue

M：

Haveyoufinishedeatingyet.

F：

Not,Ihaven’t.Whyareyouinsuchahurry.

M：

I’msorry,butyouaresuchasloweater.

F：

Asloweater?

WellItrytoenjoymyfood.Youjusteatandswallow.Idon’tseehowyoucaneventasteit.

M：

Ok,I’msorry.DoyoumindifIgetanotherglassofwine.

F：

No,goahead.Idon’twantyoutositthereputtingpressureonme.Ithoughtweweregoingtohavearelaxingevening.

M：

Yes,youareright.I’dliketorelax,butIhadalotonmymind.

F：

Whatcreated?

M：

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

F：

Isbusinessbad?

M：

Yes,itis.ButIdon’twanttotalkaboutit.

F：

Ok,butI’magoodlistener.Youcantellmeifyo