最新懂你英语L3Unit2.docx

最新懂你英语L3Unit2.docx

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最新懂你英语L3Unit2

Unit2-1Listening

Matterismadeofatomsandmolecules.Water,forexampleistheH2Omolecule.Thismeansthatthemoleculesofwaterhave3atoms.Awatermoleculehas2Hydrogenatomsand1oxygenatom.Substanceslikesugar,havemanyatomsintheirmolecules.Amoleculeofsugarhasmanyatomsincludingcarbon,hydrogenandoxygen.

MatterismadeofmoleculessuchasH20,whichisawatermolecule.Mattercanbeoneinthreestates,solid,liquidorgas.Waterandiceareinsamesubstancebuttheyareindifferentstates.Thesestatesdependonthetemperatureofamolecule.Whenweheatthesubstance,themoleculesmovefasterandtrytotakeupmorespace.Whenwecoolsubstances,themoleculesmoveslowly.Whenwecoolasubstanceinitsfreezingpoint,itbecomesasolid.Inasolid,themoleculesmoveverylittle.Theypositionsarealmostfixed.Tobefixedmeansthattheirpositionsdon’tchange.

ifweheatthemolecules,theymovefasterandawayfromeachother.Thesolidbeginstomeltlikeanicecreamonahotday.Atacertaintemperature,thesolidbeginstochangeintoliquid.Thetemperatureatwhichasolidchangeintoliquiddependsonthesubstance.Forwater,thesolidbeginstochangeintoaliquidwhenitstemperaturerisesabout0degreeCelsius.Forsomesubstances,suchassteel,thetemperaturewhichitbecomesaliquidismuchhigher.Steeloftenmeltsataround1370℃.Ifwecontinuetoheattheliquid,themoleculesmoveevenfaster.Atacertaintemperature,theliquidbeginstochangeintogas.Forwater,theliquidbeginstochangeintoagasat100degreesCelsius.Thisistheboilingpointofwater.

Insidethestart,suchasoursun,thetemperatureisveryhigh.Everythinginsidethesunisthegas.Accordingtoscientists,thereareover65elementsinsidethesun.theseincludeoxygenandiron.Over90%ofthesunishydrogengas.

Yesterday,therewasanimportantsciencetest.Lisa,Tomand20otherclassmatestookthetest.Thetestisaboutthestatesofmatterandhowtheyaredifferent.Therewere25questionsonthetextandtherehad45minutestotakeit.Herearesomeofthetestresult.2studentsgotperfectscores.Thelowestscorewas68outof100.Theaveragescorewas86.3.11studentsscorehigherthanaverage.11studentshavebelowtheaveragescores.

Tommissed2questiononthetestsohisscorewas92.Hisscorewas8highestintheclass.Lisamissed2andahalfquestionsoherscoreis90.Herscoreis10highestscore.Herscoreis4pointshigherthantheaveragescore.Lisawasdisappointedwithhertestresults.Shestudiedhardforthetestbutshestilldidn’tdowell.Asaresult,sheplanstostudyharderfornexttest.Thenexttestwillbeinabout2weeks.Tomwassurprisedandhappywithhisresults.Hedidn’tstudyhardsohisresultwasbetterthanheexpected.HewasalsohappythathedidbetterthanLisadid.

Unit2-1vocabulary

Sheisscreamingbecausesheisveryscared.Somethingischasinghersosheisscreamingforhelp.

Heisshoutingbecauseheisangry.Whenheisreallyangry,heoftenshoutslikethis.

Sheissleepbecausesheistired.Lastnightshedidn’tgetenoughsleepsotodayshedidn’tgetenoughenergy.

She’scrybecauseshe’ssad.Shegotsomebadnewsafewminutesago.

She’ssmilingbecauseshe’shappy.Herboyfriendwasjustcalledandheisreturningfromalongtrip.

Thismanishikingupamountaintrail.Heiswearinghikingbootsandiscarryapackonhisback.

Thismanenjoyscooking.Heattendsacookingclassonceaweek.

Thiswomanenjoysgardening.Shegrowsflowerssuchasrosesandvegetablessuchastomatoesinhergarden.

Thisboylovesplayinggames.Helikesallkindsofgamesincludingthisvideogameonhiscomputer.

Thisoldcoupleenjoystraveling.Theytakeseveraltripsayearoftentodifferentcountries.

Unit2-1dialogue

Oh,thereyouarefinally.

Yeah,I’msorry.

Whyareyousolate?

Youweresupposedtobehere30minutesago.

Igotonawrongsubwaybymistake.

Whydidn’tyoucall?

Iwasreallyworried.

Idon’thavemyphone.IleftitintheofficebecauseIwasinsuchahurrytogethere.

Ok,you’reherenow.wedon’thavemuchtime.

Yes,wewillhavetohurry.Themeetingstartsin15minutes,right?

Yes,itsupposedtoandeveryonegetshereontime.

Didyoureadmypresentation?

Yes,Idid.It’sgoodandbutit’sabittoolong.I’mafraidtherewon’tbeenoughtimeforquestions.

Doyouhaveanysuggestions?

Yes,Ido.Ithinkthecompanyintroductioncanbecutinhalf.Theyknowwhatwedo.

Ok,Iwon’tshowthevideo,it’sabout2minuteslong.

There’sagoodidea.Thevideoisonourwebsiteandit’snotthatgoodanyway.

Doyouhaveothersuggestions?

Not,Idon’t.I’msureyouwilldothegreatjob.Areyouready?

Yes,I’mready.Themeetroomisonthe21stfloor.

OK,let’sgo.

Howdidyoudothisyesterdaysciencetest?

Ididbetterthanexpected.Howaboutyou.

Ididn’tdoverywell.IexpectedtodobetterthanIdid.

Whatwasyourscore?

Igota90.Whataboutyou?

Igota92.Ionlymissed2questions.

SoyoudidbetterthanIdid.AndIreallystudyforittoo.

That’sasurprise.

YouusuallydobetterthanIdo.

Yes,Iwascareful.Imadeonereallystupidmistake.

Whatwasit?

Isaid90%ofthesunisHeliuminsteadofhydrogen.

Wow,therewasastupidmistake.

Whatwastheaveragescorefortheclass?

Doyouknow?

Theaveragescoreis86.3andthelowestis68.

Doyouknowgotthelowesttestscore?

No,Idon’t.Idon’tknowwhogotthelowestscore.

It’sprobablyasecret.Diditanyonegetaperfectscore?

IthinkAdaandSanjaybothgetaperfectscore.

Yes,theyalwaysdowell.IwishIwereassmartastheyare.

Unit2-2Listening

In6weeks,Paulisgoingonatrip.HeisgoingtoJapanandChina.Thereareacoupleofreasonsforthetrip.Onereasonisforbusiness.He’sthinkingaboutstartingrestaurantsinbothcountries.Theotherreasonwasforpleasure.Heenjoystravelingandhe’dliketovisitsomefriends.Yesterdaywewentonlineandmadeairlinereservations.Therewereplentyofseatsontheplanesoitwaseasy.Healsogotagooddiscount.Unfortunately,heneedsanewpassport.Hisoldpassportisexpiringnextweek.Thisissomethinghedidn’texpect.Gettinganewpassportwilltakeatleastaweek.Heneedstoapplyforonerightaway.

PaulalsoneedsavisatoenterChina.Thelasttimehewenttochinawas3yearsago.Gettingvisamayalsotakeaweekoreventwo.Sohedoesn’thavemuchtime.Heneedstohurry.Hecan’tgetthevisauntilhegetshisnewpassport.HewillhavetogotothechinaconsulateinToronto.Hopefullytherewon’tbeanydelays.

Paulhaveseveralfriendsineachcountry.OneofhisbestfriendlivesneartheMountFuji.Hisfriendlivesnearabeautifullakeabout3hoursfromTokyo.Hisfriendisagreatcookandownsalittlerestaurant.Therestaurantislocatedonthehillabovethelake.Ithaswonderfulviewandthefoodiswonderful.Heislookingforwardtoeatingthere.Thenhewillspendthenightathisfriend’shouse.Onewaytogettohisfriend’shouseistogobytrain.Ifhetakesthetrain,hisfriendwillmeethimatthetrainstation.Thereisatrainstationabouthalfanhourfromhisfriend’shouse.Ontheotherhand,hemaydecidetogobycar.Hecanrentacarforfewdaystoseemoreofthecountry.HecanuseaGPStohelphimwithdirections.Hedoesn’tspeakJapanesesothedirectionsneedtospeakinEnglish.

Inchina,PaulhasagoodfriendwholivesinBeijing.HestudiedatthesameuniversityinCanadamorethan16yearsago.HisChinesefriendwantstohelpPaulwithhisbusiness.Hefriendshaslotsofbusinessexperience.HisfriendcanhelpPaullearnaboutdoingbusinessinchina.Paulknowsthereisalottolearn.Hewillneedhisfriend’shelp.WhileinBeijing,theyplantovisitItalianrestaurants.Theymaymeetsomeoftheownerstoobutitisn’tcertainyet.MostoftheownersareChinese.OneortwoofthemmaywanttodobusinesswithPaul.Ifhehastime,hemaygototheGreatWallofChina.It’safewhoursoutsideofBeijingbycar.

Altogether,thetripmaytake3ormoreweeks.Paulstillisn’tsurehowlonghewillstayineachcountry.HemayspendaweekinJapanand2weeksinchina.Hemaydecidetostaylonger.Everythingdecidesonhisfriends.Heexpectstogetmoreinformationfromtheminadayortwo.

Unit2-2vocabulary

Inbasketball,playersscorepointsbyshootingaballthroughahoop.Eachsidehas5playersandthegameisplayedinthebasketballcourt.

Footballisprobablytheworldmostpopularsport.Eachteamtriestoscoreagoalbykickingtheballintoanet.

Baseballisteamsportwhereeachsidehas9players.Baseballplayersusesbacktotrytohittheballonbase.

Golfisanindividualsportwhereplayerstrytohittheballintoaholeontheground.Thegameisplayedinthegolfcoursewith18holes.

Inboxing,thetwoboxersstandinboxingringtheandhiteachother.Sometimesaboxer,likethisone,knockstheotheroneout.

Whenpeoplefalldown,theycanbreakabone.Abrokenbonecanbeverypainful.

Ifsomeoneiscut,theywillbleed.Aknifeorasharpobjectandcancutsomeoneandcausebleeding.

Poisonsareverydangerousandcancausedeath.Somesnakesorspidersarepoisonous,sobecareful.

Aheartattackcanhappenverysuddenly.Ifsomeonehasaheartattack,callforanambulancerightaway.

Ifyoucatchafire,falltothegroundandroll.Gettingtooclosetothefirecanbeverydangerous.

Unit2-2dialogue

What’sthematter?

Youlookverytiredtoday.

I’mtired.Ididn’tsleepwelllastnight.

Baddream?

Yes.Exactly.Ihadaterribledrea