懂你英语Level 3 unit 2Word下载.docx

懂你英语Level 3 unit 2Word下载.docx

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Three.-

-Whathappenswhenweheatasubstance?

themoleculesmovefasterandtrytotakeupmorespace.

-Whathappensifwecoolaliquidtoitsfreezingpoint?

Itbecomesasolid.

Inasolid,themoleculesmoveverylittle.

Theirpositionsarealmostfixed.

Tobefixedmeansthattheirpositionsdontchange.

Ifweheatthemolecules,theymovefasterandawayfromeachother.

Thesolidbeginstomelt,likeicecreamonahotday.

-Howcanwechangeasolidintoaliquid?

heatitup.

-Howcanwechangealiquidintoasolid?

coolitdown.-

Atacertaintemperature,asolidbeginstochangeintoaliquid.

Thetemperatureatwhichasolidchangesintoaliquiddependsonthesubstances.

Forwater,thesolidbeginstochangeintoaliquidwhenitstemperaturerisestoabove0degreesCelsius.

Forsomesubstances,suchassteel,thetemperatureatwhichitbecomesaliquidismuchhigher.

Steeloftenmeltsataround1370degreesCelsius.

-Atwhattemperaturedoesicebegintomelt?

Above0degreeCelsius.

-Whatdoesthetemperatureatwhichasubstancebeginstomeltdependon?

Thesubstances.

Ifwecontinuetoheataliquid,themoleculesmoveevenfaster.

Atacertaintemperature,theliquidbeginstochangeintoagas.

Forwater,theliquidbeginstochangeintoagasat100degreesCelsius.

Thatistheboilingpointofwater.

-Whathappensifwecontinuetoheataliquid?

Moleculesmoveevenfaster.

Insideastar,suchasoursun,thetemperatureisveryhigh.

Everythinginsidethesunisagas.

Accordingtoscientists,thereareover65elementsinsidethesun.

Theseincludeoxygenandiron.

Over90%ofthesunishydrogengas.

-Howmanyelementsareinsidethesun?

Morethan65

Yesterday,therewasanimportantsciencetest.

Lisa,Tomand20otherclassmatestookthetest.

Thetestisaboutthestatesofmatterandhowtheyaredifferent.

Therewere25questionsonthetextandtherehad45minutestotakeit.

Herearesomeofthetestresult.

2studentsgotperfectscores.

Thelowestscorewas68outof100.

Theaveragescorewas86.3.

11studentsscorehigherthanaverage.

11studentshavebelowtheaveragescores.

Tommissed2questiononthetestsohisscorewas92.

Hisscorewas8highestintheclass.

Lisamissed2andahalfquestionsoherscoreis90.

Herscoreis10highestscore.

Herscoreis4pointshigherthantheaveragescore.

Lisawasdisappointedwithhertestresults.

Shestudiedhardforthetestbutshestilldidntdowell.

Asaresult,sheplanstostudyharderfornexttest.

Thenexttestwillbeinabout2weeks.

Tomwassurprisedandhappywithhisresults.

Hedidntstudyhardsohisresultwasbetterthanheexpected.

HewasalsohappythathedidbetterthanLisadid.

Vocabulary

Sheisscreamingbecausesheisreallyscared.

Somethingischasinghersosheisscreamingforhelp.

Heisshoutingbecauseheisangry.

Whenhesreallyangryheoftenshoutslikethis.

Sheissleepingbecauseshestired.

Lastnightshedidntgetenoughsleep,sotodayshehasnoenergy.

Shescryingbecauseshessad.

Shegotsomebadnewsafewminutesago.

Shessmilingbecausesheshappy.

Herboyfriendjustcalledandhesreturningfromalongtrip.

Whoissmilingbecauseshegotsomegoodnews?

Thismanishikingupamountaintrail.

Heiswearinghikingbootsandiscarryingapackonhisback.

Thismanenjoyscooking.

Heattendsacookingclassonceaweek.

Thiswomanenjoysgardening.

Shegrowsflowers,suchasroses,andvegetables,suchastomatoes,inhergarden.

Thisboylovesplayinggames.

Helikesallkindsofgames,includingthisvideogamesonhiscomputer.

Thisoldcoupleenjoystravelling.

Theytakeseveraltripsayear,oftentodifferentcountries

Dialogue

W:

Oh,thereyouare,finally.

M:

Yeah,Imsorry.

Whyareyousolate?

Youweresupposedtobehere30minutesago.

Igotonthewrongsubwaybymistake.

-Whenwashesupposedtobethere?

-30minutesago.

-Whywashelate?

Hetookthewrongsubway.

Whydidntyoucall?

Iwasreallyworried.

Idonthavemyphone.IleftitintheofficebecauseIwasinsuchahurrytogethere.

OK,well,youreherenow.Wedonthavemuchtime.

Yes,wellhavetohurry.Themeetingstartsin15minutes,right?

Yes,itssupposedto,ifeveryonegetshereontime.

-Whenisthemeetingsupposedtostart?

in15minutes.

-Tohurrymeans..

Togofast.

Didyoureadmypresentation?

Yes,Ido.Itsgood,butitsabittoolong.Imafraidtherewontbeenoughtimeforquestions.

Doyouhaveanysuggestions?

Yes,Ido.Ithinkthecompanyintroductioncanbecutinhalf.Theyknowwhatwedo.

OK,Iwontshowthevideo.Itsabout2minuteslong.

Thatsagoodidea.Thevideoisonourwebsiteandisnotthatgoodanyway.

-Whatisshegoingtocutfromherpresentation?

thevideo.-

-Whyisthepresentationabittoolong?

Thereisntenoughtimeforquestions.

No,Idont.Imsureyouredoingagreatjob.Areyouready?

Yes,Imready.Themeetingroomisonthe21stfloor.

OK,letsgo.

-Whereisthemeetinggoingtobe?

inameetingroom.-

Shesreadytogiveherpresentationatthemeeting.

Lisa:

Howdidyoudoonyesterdayssciencetest?

Tom:

Ididbetterthanexpected.Howaboutyou?

Ididntdoverywell.IexpectedtodobetterthanIdid.

Whatwasyourscore?

Igota90.Whataboutyou?

Igota92.Ionlymissedtwoquestions.

-Howwelldidhedoonthetest?

Hedidbetterthanexpected.

Shedidntdoaswellassheexpected.

SoyoudidbetterthanIdid.AndIreallystudyforittoo.

Thatisasurprise.YouusuallydobetterthanIdo.

Yes,Iwasntcareful.Imadeonereallystupidmistake.

Whatwasit?

Isaid90%ofthesunisHeliuminsteadofHydrogen.

Wow.Thatwasastupidmistake.

-Whywashesurprisedbytheresult?

Hedidbetterthanshedid.

Whatwastheaveragescorefortheclass,doyouknow?

Theaveragescorewas86.3andthelowestwas68.

Doyouknowwhogotthelowesttestscore?

No,Idont.Idontknowwhogotthelowestscore.

Itsprobablyasecret.Didanyonegetaperfectscore?

IthinkAdaandSandibothgotperfectscore.

Yes,theyalwaysdowell.IwishIwereassmartastheyare.

-Whatwastheaveragetestscore?

-86.3

Level3unit1part2

InsixweeksPaulisgoingonatrip.

HeisgoingtoJapanandChina.

Thereareacoupleofreasonsforthetrip.

Onereasonisforbusiness.

Heisthinkingaboutstartingrestaurantsinbothcountries.

Theotherreasonisforpleasure.

Heenjoystravellingandhedliketovisitsomefriends.

-Whatsgoingtohappeninsixweeks?

Heisgoingonatrip.

-Whatishethinkingaboutstartinginbothcountries?

Heisthinkingaboutstartingrestaurants.

Yesterdayhewentonlineandmadeairlinereservations.

Therewereplentyofseatsontheplane,soitwaseasy.

Healsogotagooddiscount.

Unfortunately,heneedsanewpassport.

Hisoldpassportisexpiringnextweek.

Thisissomethinghedidntexpect.

Gettinganewpassportwilltakeatleastaweek.

Heneedstoapplyforonerightaway.

-Whydidheneedtogetanewpassport?

Hisoldoneisexpiringsoon.

-Whatdidheneedtodorightaway?

applyforanewpassport.

-Howlongwillittaketogetanewpassport?

Atleastaweek.

PaulalsoneedsavisatoenterChina.

ThelasttimehewenttoChinawas3yearsago.3

Gettingavisamayalsotakeaweekoreventwo.

Sohedoesnthavemuchtime.

Heneedstohurry.

Hecantgetthevisauntilhegetshisnewpassport.

HellhavetogototheChineseconsulateinToronto.

Hopefullytherewontbeanydelays.

-Whatmaytakeaweekortwo?

gettingavisa.

-WhenwasthelasttimehewenttoChina?

-3yearsago.

Paulhasseveralfriendsineachcountry.

OneofhisbestfriendslivesnearMountainFuji.

Hisfriendlivesnearabeautifullakeabout3hoursfromTokyo.

Hisfriendisagreatcookandownsalittlerestaurant.

Therestaurantislocatedonahillabovethelake.

Ithasawonderfulviewandthefoodiswonderful.

Paulislookingforwardtoeatingthere.

Thenhewillspendthenightathisfriendshouse.

-WhereisPaulgoingtostay?

Hellstayathisfriendshouse.

-Whatdoeshisfrienddo?

Heownsarestaurant.

Onewaytogettohisfriendshouseistogobytrain.

Ifhetakesatrainhisfriendwillmeethimatthetrainstation.

Theresatrainstationabouthalfanhourfromhisfriendshouse.

Ontheotherhandhemaydecidetogobycar.

Hecanrentacarforafewdaysandseemoreofthecountry.

Hecanuse